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EX/QFX Series Platform and Technical Overview Student Guide
EX/QFX Series Platform and Technical Overview
NOTE: Please note this Student Guide has been developed from an audio narration. Therefore it will have conversational English. The purpose of this transcript is to help you follow the online presentation and may require reference to it.
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EX/QFX Series Platform and Technical Overview
© 2011 Juniper Networks, Inc. All rights reserved. | www.juniper.net | Worldwide Education Services
Welcome to Juniper Networks EX /QFX Series Platform and Technical Overview eLearning module.
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EX/QFX Series Platform and Technical Overview
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Course Objectives • After successfully completing this course, you will be able to discuss: • EX2200, EX3200, EX4200, EX4500 Product Descriptions • EX2200 Fixed Configuration • EX3200 Fixed Configuration • EX4200 with Virtual Chassis™ Technology • EX4500 with Virtual Chassis™ Technology
• QFX3500 Product Description • QFX3500 Top of Rack Fixed Platform
• EX8200 Terabit Chassis Product Descriptions • EX8200 Hardware Overview • Switch Architecture • Power and Cooling Architecture
• Junos Space Virtual Control • EX Series Deployment Examples
© 2011 Juniper Networks, Inc. All rights reserved.
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After successfully completing this course, you will be able to discuss: • EX2200, EX3200 and EX4200 Product Descriptions • EX2200 Fixed Configuration • EX3200 Fixed Configuration • EX4200 with Virtual Chassis™ Technology • EX4500 with Virtual Chassis™ Technology • QFX3500 Product Description • QFX3500 Top of Rack Fixed Platform • EX8200 Terabit Chassis Product Descriptions • EX8200 Hardware Overview • Switch Architecture • Power and Cooling Architecture • Junos Space Virtual Control, and • EX Series Deployment Examples
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EX/QFX Series Platform and Technical Overview
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Agenda: EX/QFX Series Platform and Technical Overview • EX2200, EX3200, EX4200, EX4500 Series and QFX3500 Series • EX8200 Terabit Chassis • Junos Space Virtual Control • EX Series Deployment Examples
© 2011 Juniper Networks, Inc. All rights reserved.
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This course consists of four sections. The four main sections are provided in sequential order and are titled as follows: • EX2200, EX3200, EX4200, EX4500 Series and QFX3500 Series • EX8200 Terabit Chassis, • Junos Space Virtual Control, and • EX Series Deployment Examples
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EX/QFX Series Platform and Technical Overview
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EX/QFX Series Platform and Technical Overview
EX2200, EX3200, EX4200, EX4500 and QFX3500 Series
© 2011 Juniper Networks, Inc. All rights reserved. | www.juniper.net | Worldwide Education Services
Let’s start by taking a look at the EX2200, EX3200, EX4500 and EX4200 Series.
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Section Objectives • After successfully completing this section, you will be able to: • Describe the EX2200 Access Switch, including • Features • Architecture
• Discuss the EX3200 Fixed Configuration Switch, including • Features • Architecture
• Describe the EX4200 with Virtual Chassis™ Technology, including • Features • Architecture
• Describe the EX4500 with Virtual Chassis™ Technology, including • Features • Architecture
• Discuss the QFX3500 ToR Fixed Switch, including • Features
• Architecture • Explain Virtual Chassis™ Technology
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After successfully completing this section, you will be able to: •Describe the EX2200 Access Switch, including • Features and Architecture •Discuss the EX3200 Fixed Configuration Switch, including • Features and Architecture •Describe the EX4200 with Virtual Chassis™ Technology, including • Features and Architecture •Describe the EX4500 with Virtual Chassis™ Technology, including • Features and Architecture
•Discuss the QFX3500 Top of Rack Fixed Switch, including • Features and Architecture •Explain Virtual Chassis™ Technology
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EX2200 Line of Ethernet Switches • Designed for branch and low-density wiring closets • Fixed configuration •
24 or 48 ports
•
4 SFP uplinks
•
PoE model options
• Junos software •
L2 and RIP in base license
• Fixed power supply and fans • List price starts at $1,995
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Let’s start out with the EX2200 Series. The EX2200 is a fixed configuration, 10/100/1000 access switch designed for branch office locations and low density closet types of locations. It comes in several models with either 24 or 48 fixed ports, as shown in the table in the lower right. Each model has four fixed uplinks, utilizing small, form factor pluggables. The optics themselves are purchased separately. There are Power over Ethernet (PoE) options. Unlike the EX3200 and EX4200, the EX2200 either has full PoE on all ports – either the 24 or 48 – or has no PoE ports. Also note that the PoE capability for both 24 and 48-port devices is 450 watts. This will allow 15.4 watts for the 24-port device, but will not allow the full 15.4 watts for the 48-port device. The EX2200 is based on Junos software as part of the base license. Layer 2 as well as RIP are available. There will be a future Layer 3 license that will include additional dynamic routing protocols. Again, this is a little bit different than the other fixed platforms — the EX3200 and EX4200 — which come with a base license of full Layer 3 dynamic routing protocols. The EX2200 has fixed power supply and fan trays
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EX2200 Switch: Front and Rear Views • Fixed, standalone configuration • 17.3W x 10D x 1.75H inches • 43.9W x 25.4D x 4.4H cm • 1 RU height
• Fixed power, fans and uplinks • Consistent management • Junos Software • Managed by NSM • UAC integration
• High Performance • Wire-rate, non-blocking • 104 Gbps capacity
• Management interfaces • Console • Out-of-band Ethernet
• External RPS support*
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Taking a look at the front and rear views, you can see this device has 48 ports on the front panel as well as the four Gigabit Ethernet uplink ports. On the rear panel you can see the Gigabit Ethernet Management USB port, the console port, and the slot for a redundant power supply, which is labeled RPS. Note that the redundant power supply device is actually not available at this time, but is a future option. Finally, you can see the multiple, fixed fans and the single power supply on the right that is also fixed. Like all other EX Series switches, the EX2200 runs Junos, and is managed through NSM with the same CLI as other Junos products. The EX2200 also integrates with Unified Access Control, which is consistent with other EX platforms. All ports are wire-rate, non-blocking, full 104 Gbps capacity.
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EX2200 Architecture
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Let’s discuss the architecture of the EX2200. The lower diagram shows the 48-port model. The upper diagram shows the 24-port model. For both of these, the T designates the unit without PoE and the P designates full PoE. The chip architecture is identical between the two units shown. Looking at the middle of the 48-port model, each EX2200-48 has two EX-PFEs or EX packet forwarding engines. Each EX-PFE supports up to six quad gigabit-PHYs, twelve quads of 48 ports. Effectively, each EX-PFE supports 24 of those ports at any one time. In the 24-port model, instead of having two PFEs, you have one, which supports all 24 ports. That PFE also supports the gigabit uplink module.
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EX3200 Series Ethernet Switches • Fixed, standalone configuration • Flexible uplink modules • 4-port GbE (SFP) • 2-port 10GbE (XFP)
• Modular power and cooling • Field-replaceable AC, DC PSU • Field replaceable fan tray • External RPS option • Full Class 3 PoE (15.4 W)
• Runs Junos software with full OSPF and IP multicast in base license
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Moving up the value chain, we have the EX3200 Series. It is also a fixed, standalone configuration device designed for enterprise wiring closet applications and offers wirespeed, non-blocking 10/100/1000 connectivity with PoE. Each platform is based on the EX-PFE ASIC developed by Juniper Networks. Like the EX2200, the EX3200 has 24 or 48 ports. Note that there’s a full PoE version, with all ports capable of a full 15.4 watts of PoE operation. There also are versions we call “partial PoE”, which have only the first 8 ports capable of PoE. These are ideal situations where a customer does not require full PoE since they’re network devices are not all voice or IP phones — perhaps they only have a few wireless access points or video cameras and only require a few ports. Competitor platforms are either all PoE or not PoE, so the EX3200 is unique. The partial PoE EX3200 is a good interim solution, offering just a few ports at a very cost effective price point. The EX3200 is available with modular uplinks, and there are two uplink module options — a 4-port Gigabit Ethernet SFP module or a 2-port 10GbE XFP option. These modules are available separately and do not need to be purchased with the base platform. The power supply and fan tray on the EX3200 are field replaceable, which is ideal for branch office types of locations. It also has an option for an external remote power supply for redundancy. The EX3200 offers one of the most power efficient wiring-closet switches in the industry, consuming a maximum of 190W for switch operations. The EX3200 offers a 320W, 600W or 930W power supply to support PoE.
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EX/QFX Series Platform and Technical Overview
Finally, unlike the competition, Juniper includes core routing features such as OSPF, RIPv2, and IP multicast in the base software license, reducing CapEx when deploying Layer 3 to the edge. When ordering products for customers, you’ll choose one of Juniper’s base platforms for the EX Series and then order any additional necessary parts, such as uplink modules or licenses for advanced software features. The base configurations for the EX Series are preloaded with the worldwide version of Junos and shipped with region-specific power cables. The EX3200 Series platforms have fixed interfaces with four port configuration options available.
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EX3200 Series Front & Rear Panel Views • •
1 RU Modular components • • •
•
1 GB internal Flash
• •
1 GB system memory Performance
•
High density
•
VC cable length
•
Management
•
• • •
• • • •
© 2011 Juniper Networks, Inc. All rights reserved.
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Power supplies, fan tray Optional uplinks Junos software External USB Flash
Wire-rate, non-blocking Local switching Up to 480 GbE and 20 10GbE ports in 10RU 0.5 Meter ships with box 1Meter, 3 Meter options Console Out of band
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This front view shows the 48-port configuration of the EX3200. Both the 24-port and 48port versions have an LCD display and an uplink module. This picture shows the version with the 8 PoE ports. The full PoE version provides PoE on all ports — either 24 or 48. The uplink module is shown here. Above that is an LCD display, which allows you to get some basic configuration parameters from the device. The rear view shows the out-of-band 10/100/1000 management port and the RS-232 console port. The USB port is for a USB-based flash device for storage of additional configuration and image files. The platform currently does not have an RPS connector behind the cover. The fan tray is field-replaceable, as is the power supply, which is the farthest to the right. The picture shows the AC option. A DC power supply option is also available. The device is 1 rack unit high. It has a gigabyte of internal flash memory, which is used for configuration and image file storage. Additional configuration and image files can be stored on an external drive connected to the USB port. The system has 512 megabytes of memory. Each port on the EX is wire-rate. Note that on the EX3200, when you install the 4-port gigabit uplink module, it disables ports 45, 46, 47, and 48 — the last four of the fixedconfiguration ports. This applies only to the EX3200. The 10-gig uplink module does not disable those four ports.
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EX3200 Series Architecture
EX3200-48T/P
EX3200-24T/P
• Last 4-port of 10/100/1000 is shared with the 4-port GE uplink when installed © 2011 Juniper Networks, Inc. All rights reserved.
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Let’s discuss the architecture of the EX3200. The upper diagram shows the 48-port model. The lower diagram shows the 24-port model. For both of these, the T designates the unit with partial PoE and the P designates full PoE. The chip architecture is identical between the two units shown. Looking at the middle of the 48-port model, each EX3200-48 has two EX-PFEs or EX packet forwarding engines. Each EX-PFE supports up to twelve quad gigabit-PHYs, twelve quads of 48 ports. Effectively, each EX-PFE supports 24 of those ports at any one time. You can see that the uplink module utilizes the first PFE. The four-by-gigabit uplink module connects to a port selector, so when you deploy that uplink module, the port selector shuts off the last quad PHY, disabling the last four ports. The two-by-10gigabit uplink module is distributed across the PFEs, so a single gig-e is designated for each one of the PFEs and no ports get disabled. You can also see the CPU, flash memory, boot memory, and the LCD. In the 24-port model, instead of having two PFEs, you have one, which supports all 24 ports. That PFE also supports the gigabit or the 10-gigabit uplink module.
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EX4200 Series Ethernet Switches with Virtual Chassis™ Technology • Flexible uplink modules • 4-port GbE (SFP) • 2-port 10GbE (XFP)
• Virtual Chassis™ technology • • • •
Manage up to 10 as a single device 128 Gbps virtual backplane Extend over 10GbE or GbE uplinks Master & backup route engines
• Fully redundant power & cooling • • • •
Dual, hot-swap AC, DC PSU External RPS option Fan FRU, multiple blowers Full Class 3 PoE (15.4 W)
• LCD display • Runs Junos software with full OSPF and IP multicast in base license © 2011 Juniper Networks, Inc. All rights reserved.
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Moving further up the fixed platform value chain, the EX4200 Series Ethernet Switches reset market expectations for chassis-class, high availability features in a pay as you grow 1RU switch. The EX4200 Series advances the economics of networking with highdensity, wire-speed non-blocking 10/100/1000 connectivity with PoE & redundant power and cooling. The EX4200 Series virtual-chassis switches are designed for enterprise wiring-closet, data center top of rack, and aggregation layer applications. Each platform is based on the EX-PFE ASIC developed by Juniper Networks. The 1 rack unit platform is available with five different port configuration options, as shown in the table. Like the EX2200 and EX3200, the EX4200 comes with both 24 and 48-port 10/100/1000 interfaces, either with full or partial PoE: The fifth model available is a 24-port 100-base or 1000-base X model, utilizing small form factor pluggables. This is designed primarily for aggregation of other Ethernet switches — either in a campus environment or a data center environment. The EX4200 is available with two uplink module options — a 4-port Gigabit Ethernet SFP module or a 2-port 10GbE XFP option. These modules are available separately and do not need to be purchased with the base platform. What makes the EX4200 unique is it was the first product in our switching lineup to offer Juniper’s Virtual Chassis Technology, which provides the ability to interconnect up to ten EX4200s into a single logical switch. It’s supported by a 128 Gbps virtual backplane.
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This provides up to 480 GbE and up to 20, 10GbE port density. Also, the EX4200 platforms can be interconnected via the 10GbE ports on the front of the device, allowing extended applications, such as interconnection between wiring closets on the floor of a building, to create a single Virtual Chassis for management and configuration. When two or more EX4200 platforms are connected, they offer the same software high availability as traditional chassis-based platforms. Unlike the competition, which only has a master switch, each Virtual Chassis platform with more than one member has a master and backup route engine pre-elected. The master and backup have synchronized routing tables and routing protocol states for rapid failover should a master switch fail, providing true carrier-class reliability. The EX4200 supports dual hot swappable AC power supplies. It also has an option for an external remote power supply for redundancy. The EX4200 offers one of the most power efficient wiring-closet switches in the industry, consuming a maximum of 190W per device for switch operations. The EX4200 offers 320W, 600W or 930W power supply options to support PoE. The EX4200 has a fan tray with multiple blowers or multiple fans for redundancy as well. Each platform offers an LCD for simple configuration and status information display. Finally, unlike the competition, Juniper includes core routing features, such as OSPF, IP multicast, and RIPv2, in the base software license, reducing CapEx when deploying Layer 3 to the edge. When ordering products for customers, you’ll choose one of Juniper Networks base platforms for the EX Series and then order any additional necessary parts, such as uplink modules or licenses for advanced software features. The base configurations for the EX Series are preloaded with the worldwide version of Junos and shipped with region-specific power cables. The EX4200 Series platforms have fixed interfaces with five port configuration options available.
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EX4200 Series Front & Rear Panel Views
• •
1 RU Modular components • • •
•
1 GB internal Flash
• •
1 GB system memory Performance
•
High density
•
VC cable length
•
Management
•
• • •
• • • •
© 2011 Juniper Networks, Inc. All rights reserved.
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Power supplies, fan tray Optional uplinks Junos software External USB Flash
Wire-rate, non-blocking Local switching Up to 480 GbE and 20 10GbE ports in 10RU 0.5 Meter ships with box 1Meter, 3 Meter options Console Out of band
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The front panel of the EX4200 is very similar to that of an EX3200. The EX4200 is 1 RU high; it has modular components, and has ample memory and features. It supports either 24 or 48 10/100/1000 RJ-45 ports, an LCD, and an uplink module. The rear view is a bit different from that of the EX3200. You still have the gigabit out-of-band management port, the console port, and the USB port. At the lower left, you see the Virtual Chassis ports, or VCPs. Each of those is a 64-gig connection for 128 Gbps connectivity between them. Both are designed to be connected to other units; other devices on a Virtual Chassis. Above the Virtual Chassis ports and the management ports is the fan tray. On the right, you see a pair of power supplies, as opposed to a single power supply in the EX3200. This redundancy is ideal for customer configurations in a highly critical environment where the failure of a power supply and the unit are not acceptable. In the upper left is the fan tray with multiple blowers. This is a field-replaceable, hot-swappable device. If a single fan fails, the other fans will pick up speed to keep the device cool.
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EX4200 Series Architecture
VCB – Virtual Chassis Backplane VCP – Virtual Chassis Port
EX4200-48T/P
EX4200-24T/P/F
• • • •
Each VCP port is a 64Gbps connection – 32Gbps TX + 32Gbps RX VCP-A + VCP-B = 128Gbps VCB bandwidth Each EX-PFE has 2 VCPs and thus a 128Gbps VCB connection Each EX4200 switch has a 128Gbps VCB connection
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The architecture of the EX4200 is similar to that of the EX3200. The upper diagram shows the EX4200-48. The EX4200-48T and P models have three EX-PFEs instead of two in the EX3200-48 models. Two of the PFEs are responsible for 24 ports of fixed configuration each. The third PFE is utilized by the uplink modules. If you deploy the 4port gigabit uplink module, you do not lose any front panel ports in an EX4200. Each of the PFEs is interconnected through what we call a Virtual Chassis connection. There’s either a direct Virtual Chassis connection on the backplane of the device itself or a connection to the Virtual Chassis ports A and B. The lower diagram shows the EX4200-24. The T model supports partial PoE and the P model supports full PoE. The F model supports up to 24 ports of SFPs for optical aggregation. This device has two EX-PFEs: one supports the 24 fixed-configuration ports and the other supports the uplink modules. Again, there’s either a direct Virtual Chassis connection on the backplane or a connection to the Virtual Chassis ports A and B.
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Slide 16
Power Over Ethernet (PoE) in the EX3200 and EX4200
• • • •
Full Class 3 PoE Requires only one power supply IP Telephony deployments typically need all PoE ports Lower costs with the “T” SKUs for low density PoE • Wireless access points • Surveillance cameras
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The 24T and 48T versions support PoE in the first eight ports. The 24P and 48P versions support PoE in all ports. Each PoE port is full Class 3. Only a single power supply is required to support PoE. There’s no power management. The T models are typically lower cost for implementations that don’t require as much PoE density, such as those with only a few wireless access points or surveillance cameras. The remaining ports are used by such things as standard server or desktop devices. The P models are typically deployed in wiring closet locations where you may have voice over IP or PoEenabled phones — where there’s a greater need for the density.
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EX4500 LINE OF 10GbE SWITCHES • Extensive layer 2 and layer 3 features • Routing protocols (OSPF) • VRRP
• High availability features • 128G Virtual Chassis compatible with EX4200 • High-speed optical Virtual Chassis • Redundant power supplies and fan trays
• Line rate 10GE ports • More than 24 ports of 10GE line rate in fiber • Wire-rate performance on all ports • 14.88 Mpps per port on all 48 ports at all packet sizes
• Scalability • Large IPv4/IPv6 table sizes • Large MAC address table
• Management and Monitoring • S-flow available in Q2 2011
© 2011 Juniper Networks, Inc. All rights reserved.
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Featuring up to 48 wire-speed 10-Gigabit Ethernet (10GbE) ports in a two rack unit (2U) platform, the Juniper Networks EX4500 Ethernet Switch delivers Layer 2 and Layer 3 connectivity to networked devices such as servers and other switches. The EX4500 base switch provides 40 fixed 10GbE pluggable ports that can also support GbE connectors for added flexibility. Two optional high-speed uplink modules offer four additional 10GbE small form-factor pluggable transceiver (SFP+) ports each for connecting to upstream devices. When deployed in a Virtual Chassis configuration, the EX4500 switches are connected over a 128 Gbps backplane using Virtual Chassis interconnect cables. EX4500 switches can also be interconnected using a link aggregation (LAG) of up to eight SFP+ 10 GbE line-rate links, allowing switches to reside in different locations. Interconnected switches are monitored and managed as a single device, enabling enterprises to separate physical topology from logical groupings of endpoints and allowing more efficient resource utilization.
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Slide 18
EX4500 SERIES ARCHITECTURE WITH VC MODULE
Virtual Chassis Module supports two modes of operation via CLI • Loopback mode: 240GbE between PFEs for line rate standalone switch • VC mode: 200GbE between PFEs plus a 2 x 32GbE VCP
Virtual Chassis Port extension (VCPe)) • Fiber ports can be converted to VCPe • Only supported between EX4500 (11.1) with VCP module installed
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Virtual Chassis Module supports two modes of operation: Loopback mode: 240GbE between PFEs for line rate standalone switch VC mode: 200GbE between PFEs plus a 2 x 32GbE VCP Virtual Chassis Port extension (VCPe) Fiber ports can be converted to VCPe Only supported between EX4500 with VCP module installed An industry first and only, EX4500s can be interconnected in a Virtual Chassis configuration that also includes EX4200s, creating a single logical switch that offers a variety of port and density options for mixed server environments.
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Slide 19
Layer 2 and Layer 3 Features Across All EX Series Switches
For full feature list, see: http://wwwint.juniper.net/epbg/salestools.html#features © 2011 Juniper Networks, Inc. All rights reserved.
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The Juniper EX2200, EX3200, EX4200, and EX4500 Series switches offer a full complement of Layer 2 features running in Junos software. A consistent set of Layer 2 software features is provided across all of the EX Series. The base Junos software license includes important Layer 2 features such as:
•Spanning Tree for ensuring loop free topologies in bridged LANs •802.1X for standards-based network access control, and •LLDP & LLDP-MED for supporting IP Telephony and Unified Communications The Juniper EX3200, EX4200, and EX4500 Series switches offer a full complement of Layer 3 features running in Junos software. A consistent set of Layer 3 software features is provided across all of the EX Series. Unlike the competition, Juniper includes widely-used Layer 3 features in the base software license. The base Junos software license includes important Layer 3 features such as:
•Routing protocols – RIPv1&2 and OSPF •L3 Multicast support with IGMP and PIM-SM, and •Graceful protocol restart for high-availability Along with these Layer 3 features, support for management with the Junos CLI and the J-Web user interface are included in the base license.
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Juniper also offers an advanced software license for the EX3200 and EX4200. The Junos advanced software license enables the BGP and IS-IS routing protocols. The EX2200 is a little bit different in that it supports the Layer 2 features that are shown, as well as RIP version 1 and version 2 for Layer 3. All other protocols will be available in a future upgrade or a future additional license that’s not available today.
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Slide 20
EX3200 and EX4200 Series Hardware Feature Capacities
© 2011 Juniper Networks, Inc. All rights reserved.
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This table shows the difference between the EX2200, EX3200 and EX4200 from a scaling perspective. Both support jumbo frames (9.6KB frames). They support 8 egress queues per port, a consistent implementation of Quality of Service, the same port policers and MAC address tables, and the same IPv4 unicast/multicast routes. You have consistent scaling of these devices.
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Slide 21
QFX3500 Series Switch
• Sub microsecond latency • Line rate throughput for all frames sizes on all ports • Standards-based Layer-2, Layer-3, and I/O Convergence • Supports feature rich implementation of IEEE DCB standards for converged networks; enabling FCoE, iSCSI and NAS deployments • FCoE transit and FCoE-FC gateway, interoperability with both Brocade and Cisco Fibre Channel SANs (including support for multi-hop FCoE) • Interoperability with major CNA vendors • It’s Green, RoHSS, China RoHSS, Silver 80 Plus, Green Recycle, WEEE, REACH • QFabric ready!
Flexible all-in-one switch, deploy everywhere Source: Juniper Networks QFX3500 Switch Assessment, Network Test, February 2011 © 2011 Juniper Networks, Inc. All rights reserved.
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The high-performance Juniper Networks QFX3500 Switch addresses a wide range of deployment scenarios, which include traditional data centers, virtualized data centers, high-performance computing, network-attached storage, converged server I/O, and cloud computing. Featuring 48 dual-mode small form-factor pluggable transceiver (SFP+/SFP) ports and four quad small form-factor pluggable plus (QSFP+) ports in a 1 U form factor, the QFX3500 Switch delivers feature rich Layer 2 and Layer 3 connectivity to networked devices such as rack servers, blade servers, storage systems, and other switches in highly demanding, high-performance data center environments. For converged server edge access environments, the QFX3500 is also a standards-based Fibre Channel over Ethernet (FCoE) Transit Switch and FCoE to Fibre Channel (FCoE-FC) Gateway, enabling customers to protect their investments in existing data center aggregation and Fibre Channel storage area network (SAN) infrastructures. When deployed with other components of the Juniper Networks QFabric™ architecture, the QFX3500 delivers a fabric-ready edge solution that contributes to a highperformance, low latency fabric, unleashing the power of the exponential data center and providing investment protection for users migrating from traditional multitier networks. The QFX3500 is an environmentally conscious green solution that lowers operational expenses. The switch consumes less than 5 watts per 10GbE port, while variable speed fans dynamically adjust their speed based on ambient temperature to optimize
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EX/QFX Series Platform and Technical Overview
operating power. With maximum power consumption of 365 W and nominal power of 295 W, the QFX3500 is certified for Silver PSU Efficiency at 85%. The QFX3500 is also certified for environmentally responsible compliance with labels such as Reduction of Hazardous Substances (ROHS), Registration, Evaluation, Authorization and Restriction of Chemicals (REACH), and Waste Electronics and Electrical Equipment (WEEE).
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Slide 22
QFX 3500 Summary
• 1 RU high fixed configuration • Low power consumption • 48 10GbE ports - 12 Ports 10GbE or 2/4/8G FC - 36 Ports 10GbE or 1Gb
• *4 x 40G fabric uplink ports *(can also operate in 10G mode) • All ports have L2/L3 • All ports FCoE and DCB • Redundant AC power supply • Front-to-back air flow • Note: Doesn’t Support Virtual Chassis * Future
© 2011 Juniper Networks, Inc. All rights reserved.
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The QFX3500 is a fully IEEE DCB- and T11 FC-BB-5-based FCoE Transit Switch and FCoE-FC Gateway, delivering a high-performance solution for converged server edge access environments. The QFX3500 provides configurable ports capable of 1GbE, 10GbE, and 2/4/8 Gbps FC connectivity. The QFX3500 offers a full featured DCB implementation that provides strong monitoring capabilities on the top-of-rack switch for SAN and LAN administration teams, while maintaining a clear separation of management. In addition, FC Initiation Protocol (FIP) snooping provides perimeter protection, ensuring that the presence of an Ethernet layer does not impact existing SAN security policies. The FCoE Transit Switch functionality, along with Priority-based Flow Control (PFC), Enhanced Transmission Selection (ETS), and Data Center Bridging Exchange (DCBX), are included as part of the default software; no additional licenses are required. In FCoE-FC Gateway mode, the QFX3500 eliminates the need for FCoE enablement in the SAN backbone. Organizations can add a converged access layer and interoperate with existing SANs without disrupting the network. The QFX3500 allows up to 12 ports to be converted to Fibre Channel without requiring additional switch hardware modules, and gateway functionality can be soft provisioned with a software license to protect existing investments. The QFX3500 provides N-Port ID virtualization (NPIV) proxy functionality between FCoE-enabled servers and traditional Fibre Channel SANs. As a top-of-rack switch with FCoE-FC Gateway functionality, the QFX3500 presents itself as an FCoE-enabled switch to the rack or
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blade servers, and as a group of logical FC servers to the traditional Fibre Channel SAN.
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Slide 23
QFX3500 Performance & scale
© 2011 Juniper Networks, Inc. All rights reserved.
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The QFX3500 delivers 1.28 Tbps of throughput and 960 Mpps of switching capacity to sustain wire-speed switching with ultra low latency and low jitter. All ports can run at full wire-speed capacity with full performance in both L2 and L3 mode, with the option to operate in either cut-through or store-and-forward mode.
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Slide 24
QFX3500 PORTS Flexibility
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For added configuration flexibility, up to 36 of the QFX3500’s 48 pluggable SFP+ ports can be used in 10GbE or 1GbE mode with up to 18 of the 1GbE ports being copper. The remaining 12 ports can be used to support 2, 4, or 8 Gbps Fibre Channel modes. Each of the four QSFP+ high speed ports can operate in 4x10GbE mode and are capable of supporting 40Gbps optics* in the future, providing investment protection. in the future the center ports can be 40G or 40GbE uplinks or 15 ports of 10GbE Fiber.
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Slide 25
QFX3500 High Availability (HA) design
© 2011 Juniper Networks, Inc. All rights reserved.
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The QFX3500 is designed with robust high availability features that include redundant power supplies and fan modules to ensure hardware availability. Control plane and data plane separation, combined with the Junos OS high availability design, ensures maximum systems-level availability.
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Slide 26
High-performance DCB, storage, & I/O convergence FCoE-FC Gateway use case • Requirements • 10GbE server access • Copper and/or fiber cabling • High availability • DCB & FCoE-FC Gateway support
• QFX3500 solution • 12 ports of 2/4/8G FC (no additional modules needed) • Copper DAC and SFP+ fiber support • Hardware & software HA • DCB & FCoE-FC Gateway support • (Note: this is not a FC Switch)
© 2011 Juniper Networks, Inc. All rights reserved.
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-This is a use case for Fibre Channel over Ethernet (FCoE) to a Fibre Channel (FC) gateway:
- In this case Juniper provides investment protection to the existing SAN. - Servers that equipped with Converged Network Adapters (CNAs) will be attached to the QFX3500 using FCoE links.
- The QFX3500 will convert the FCoE data to native FC using the FCoE to FC gateway function and connect to the FC SAN using 2, 4 or 8G FC. - For lossless behavior the QFX3500 supports:Priority Based Flow Control (PFC), Enhanced Transmission Selection (ETS) and Data Center Bridging Capabilities Exchange Protocol (DCBX).
- With a license 12 ports can be converted to 2, 4 or 8G FC ports
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Slide 27
What is a Virtual Chassis? • Up to ten EX Series switches interconnected via virtual-chassis backplane cables or extended via GbE or 10GbE uplinks and operating as a single logical chassis system • Simplified Management: Single management interface, single Junos software version, single copy of configuration, and chassis-like slot/module/port numbering scheme • Simplified Network Design: Single network entity, single control plane, link aggregation across VC members. • Superior Resiliency: Redundant master and backup Route Engines (REs), redundant switch backplane and power/fan modules • Flexibility: Add more VC elements as port density grows, add more 10GbE uplinks, mix and match switch types. • Superior Performance at a lower entry price point: Simplified distributed forwarding switch architecture, low power consumption, compact form factor © 2011 Juniper Networks, Inc. All rights reserved.
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What is a virtual chassis? Two or more EX Series switches interconnected via virtual-chassis backplane cables or 1 Gigabit Ethernet and 10 Gigabit Ethernet uplink VCPs (virtual chassis ports) that operate exactly like a single Juniper chassis system. The benefits are:
•
Simplified Management: Single management interface, single Junos software version, single copy of configuration, and chassis-like slot/module/port numbering scheme
•
Simplified Network Design: Single network entity, single control plane, link aggregation across VC members
•
Superior Resiliency: Redundant master and backup Route Engines (REs), redundant switch backplane and power/fan modules
•
Flexibility: Add more VC elements as port density grows, add more 10GbE uplinks, mix and match switch types
•
Superior Performance at a lower entry price point: Simplified distributed forwarding switch architecture, low power consumption, compact form factor
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Slide 28
Virtual Chassis™ Technology Comparison with Stackables
= Roadmap
© 2011 Juniper Networks, Inc. All rights reserved.
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One of the comments we frequently get from customers when we talk about virtual chassis is that it sounds like a stackable. We talk about the virtual chassis as having all the benefits of a traditional modular chassis, all the key availability and resiliency benefits, plus the added benefit of not being bound by the sheet metal of the traditional chassis. Here we’re talking specifically about how it compares to a typical stackable. For performance, typical stackables usually offer less than the 128 gigs offered by the virtual chassis. Most stackables are in the range of 10 to 80 Gbps, although some are approaching that 128 Gbps figure. Right now, the virtual chassis has a higher backplane capacity. The virtual chassis has configuration flexibility in the modular uplinks; you’ll find with typical stackables, in many cases the units are fixed as far as their uplinks. The virtual chassis also has the ability to extend itself via 10-gig or 1-gig, so you can extend it across great distances – up to 70 km. There are no stackables in the market today that can do that. It has the high availability aspect of a traditional modular chassis, master/standby routing engines, graceful routing engine switchover, nonstop routing, etc. It has operational simplicity and a single license per route engine as opposed to a single license per switch in a typical stack environment. It uses chassis module numbering in configuration, so it follows a format very similar to what you’ll find in the EX8200 Series, MX Series products, and M Series products. It has all these features: higher backplane capacity, configuration flexibility, chassis-like high availability, and operational simplicity. But it doesn’t cost more than a typical
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stackable. In fact, in many cases, compared to Cisco’s 3750, it’s actually less expensive.
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Slide 29
Modular Chassis and Virtual Chassis Technology • Benefits of a Modular Chassis • High Availability • Redundant RE • Redundant switch fabric • Redundant power • Redundant cooling • Easy to Manage • Single image • Single configuration file • One management IP address • Performance and Scale • Modular configuration • High-capacity backplane • Additionally, Virtual Chassis offers: • Physical placement flexibility • Pay-as-you-grow expansion • Lower power consumption • Decreased heat generation • Less consumed space
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This slide shows a Virtual Chassis as it relates to the modular chassis. Again, the Virtual Chassis has the benefits of a modular chassis: high availability and redundancy of Route Engines, switch fabrics power supplies, and multiple blowers in the fan tray. As well, it’s easy to manage, with a single logical switch, with a single image, config and IP address. But the Virtual Chassis also offers advantages of performance and scale. The modular configuration in the modular chassis offers a very high capacity backplane. That’s similar to the Virtual Chassis; to add extra ports, you add an additional unit and you have that high capacity with the 128 Gbps backplane to provide that high-speed interconnect between devices. What the Virtual Chassis offers that a modular chassis does not is physical placement flexibility — the ability to deploy units of the Virtual Chassis across great distances, meaning across wiring closets or racks or rows in a data center or even across buildings or locations in a metro environment. You also have the pay-as-you-grow expansion — the ability to add additional ports — and lower power consumption and lower price and heat generation as well. Here, you can see that the line cards of a modular chassis may be taken out individually, and with the control plane, combined together to form a single Virtual Chassis with a high-speed backplane. However, the Virtual Chassis is not constrained by the sheet metal of a modular chassis and may be located over a larger area.
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Slide 30
EX4200 and EX4500 Series Delivers Chassis-Class Performance
480 GbE ports 20 10GbE ports
Wire-rate performance Capacity: 136 Gbps Throughput: 101 Mpps
© 2011 Juniper Networks, Inc. All rights reserved.
Backplane: 128 Gbps Capacity: 1.36 Tbps Throughput: 1010 Mpps
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All ports on the EX4200 and the EX4500 are wire-rate. The Virtual Chassis ports are each 64 gigabits. You’d typically connect the Virtual Chassis ports – one to the unit above and one to the unit below. So you’re always building the Virtual Chassis in a ring type of configuration. The overall capacity of that is 136 gigabits per second, which comes from taking 48 1-gigabit ports, adding in 64 ports for the Virtual Chassis configuration, and 20 10-gig ports. That 136-gig number can be considered a halfduplex number. Throughput is 101 million packets per second. When you have a full Virtual Chassis of 10 members, you multiply all that by 10. The backplane has 128 gigabit capacity. Capacity comes to 1.36 terabits per second and throughput is 1,010 million packets per second.
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Slide 31
EX Series Delivers Wire-rate Performance with Distributed Switching
© 2011 Juniper Networks, Inc. All rights reserved.
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The EX Series delivers wire-rate performance with distributed switching. When a packet ingresses, if the egress is on the same member, it has the ability to do the lookup and forward it out that port. There’s no centralized type of fabric involved. If a packet ingresses on one member and needs to egress out another member, the forwarding decision is made in the ingress unit. There’s no actual centralized lookup engine, which could increase latency. So a Virtual Chassis of up to 10 members is a single hop — either a Layer 2 or Layer 3 forwarding hop. There are no multiple forwarding hops, which increased latency, as you would perhaps find in other stackable devices or in a combination of stand-alone types of units where you would have multiple hops. The Virtual Chassis reduces latency of packet throughput within the device.
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Slide 32
Virtual Chassis™ Backplane Cabling
• Longest Virtual Chassis cable
• Longest Virtual Chassis cable spans three switches • Extends height/width of Virtual Chassis to 13.5 meters with 3m cables
spans the entire Virtual Chassis • Simple connectivity • Height/width of Virtual Chassis up to 5 meters
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This slide shows some detail on how you would connect the Virtual Chassis backplane cabling. Typically, you would always build a ring. There are three different options for that. Option 1 shows a daisy-chained ring. Option 2 shows the braided ring. The daisychain is a very simple one-on-top-of-the-other type of configuration. Member #1 connects to member #2; #2 connects to #3, and so on through all ten members. Member #10, the last member, connects back up to the first member. The advantage of this is that it’s very simple, intuitive connectivity. The disadvantage is that it is limited by the maximum Virtual Chassis cable length, which is 5 meters. In option 2, you have the ability to extend that height or breadth of the Virtual Chassis to about 13.5 meters, with 3-meter cables, using a braided configuration. In a braided configuration, member #1 connects to #3; #2 connects to #4, so you have an interleaved type of configuration. The upper two units are then interconnected to one another and the bottom two units are interconnected to one another. The graphic shows 4 units. This configuration can be extended up to 10 units. You have the upper two and the lower two units connected together to complete the Virtual Chassis ring. Although not as intuitive as far as connectivity within a Virtual Chassis, this does enable you to extend the height or the breadth of a Virtual Chassis to roughly four times what you can do with the daisy-chained type of configuration, using only the 3-meter Virtual Chassis cables.
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Slide 33
Virtual Chassis™ Backplane Cabling
• • • • • •
Extend height and/or width of Virtual Chassis by GbE or 10GbE uplinks Up to distance of optics (70km) Extend Virtual Chassis across: Wiring closets Data center racks Data center rows
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Option 3 is an extended Virtual Chassis. This is for distances greater than the 13.5 meters you can achieve with the 3-meter Virtual Chassis cables. You extend the Virtual Chassis using the uplink ports, either gigabit Ethernet or 10-gigabit Ethernet. In addition, you can utilize ports to extend that Virtual Chassis. The distance for the Virtual Chassis extensions are limited only by the optics on the uplink modules or on the 24F’s fixed ports (on the EX4200 24-F for example). For gigabit Ethernet, we currently support SFP options that go to 70 kilometers. For XFP, we support options that go up to 40 kilometers. You can extend across buildings, across a Metro type of environment, and so on. Typically, you’ll want to use a pair of connections to complete the loop of the Virtual Chassis. This diagram shows two locations. In Virtual Chassis location 1, you’ve got a dedicated Virtual Chassis, which could also be a braided Virtual Chassis. You have the same in Virtual Chassis location 2. You’ve extended that Virtual Chassis with the gig or 10-gig extensions into a single Virtual Chassis with 8 units.
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Slide 34
Master, Backup and Line Card Switches • Master switch (RE0) • One switch is elected Master • Master Route Engine (RE) runs Junos in a master role • Runs all VC management daemons and control protocols • Communicates with all VC member switches for interface OIR, forwarding hardware programming, xmit/rcv updates
Switch elected as Master via Election Decision Tree
• Backup switch (RE1) • One switch is elected Backup • Backup RE runs Junos in a backup role • In sync with Master in terms of protocol states and forwarding tables • Backup takes over control if Master fails
• Line Card switches (LC) • • • •
All other non-Master or Backup VC member switches Runs Junos in a “Line Card” role Responsible for programming local hardware In the event of a Master or Backup failure, one of the Line Card switches will be made the new backup switch
© 2011 Juniper Networks, Inc. All rights reserved.
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Switch elected as Backup via Election Decision Tree
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Each Virtual Chassis will elect a member as the master switch or the master routing engine, labeled here RE0. That master routing engine will run all the Virtual Chassis management daemons and control protocols. It communicates with all other VC members across the Virtual Chassis connection and distributes the forwarding tables to each of the members. Another member will be elected the backup routing engine or the backup switch, labeled here RE1. That one performs all the same functions as the master, but it’s running in a backup mode. If the master fails, the backup immediately takes over. All the remaining members of the Virtual Chassis are labeled as line card switches. They are forwarding on their ports only at that point in time. Any line card switch can be elected a master or a backup, RE0 or RE1, if the original master or the backup fails. VC switches have the same chassis elements and use the same RE management code as Juniper modular chassis (M/MX/T).
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Slide 35
Virtual Chassis™ Member ID Assignment • • •
• • •
•
•
VC members participate in the Election Decision Tree The Master assigns unique member IDs (0 thru 9) to each VC member switch Member IDs are assigned in ascending order based on the sequence in which VC members are added Newly added VC members are assigned the next-lowest available unused member ID VC member ID is preserved across reboot within a VC A replacement switch is treated as a new addition to the VC and gets the next unused member ID number Member ID of a removed switch is NOT automatically released to the available member ID pool CLI is available to manually configure or recycle member IDs •
•
Exec cmd - “request virtual-chassis renumber member-id new-member-id ” Exec cmd – “request virtual-chassis recycle member ”
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To assign Virtual Chassis member IDs, VC members participate in the Election Decision Tree. One is elected master, one is elected standby, and the rest are line cards. The master then assigns unique member IDs to each of the switches. Member IDs are assigned in ascending order based on the sequence in which the VC members are added. It’s not necessarily based on physical location. Typically, if you deploy a Virtual Chassis and you have units one above the other, it will number them consecutively, but if you add units out of sequence, such as adding a unit to the top of this Virtual Chassis configuration, it would be #3, so you would have numbering sequence 3-0-1-2 in that particular case. As new VC members are added, they’re given the next lowest available unused member ID. If you reboot the Virtual Chassis, the member ID is retained. If a switch is removed from the VC and replaced with another one, the new one will get the next lowest member ID available, meaning that it doesn’t necessarily retain the member ID of the switch that it replaced. You’ll see in the example that the switch removed had member ID 3 and the switch that replaced it was given the next lowest member ID, which in this case was 5. If you don’t want that to happen, you have to configure the Virtual Chassis to release a member ID. If you do that, the next lowest member ID would have been 3 and you would have replaced 3 with 3.
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Slide 36
Virtual Chassis™ Management • Single management interface • Individual Ethernet management ports (me0) on Member switches are tied to a special management VLAN associated with a single L3 virtual management Ethernet interface (VME) by default • VME interface always follows the Master RE • Best practice: Always configure the VME interface rather than the me0 interfaces
• Single management IP address • The Virtual Chassis is managed as a single network element; therefore it will have only one management IP address that should be configured on VME interface
• Single virtual console • Connection to a console on any Member switch in a Virtual Chassis will be redirected to the VC Master by virtual console software running on all Member switches
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The Virtual Chassis has a single management interface across the Virtual Chassis. It can be any type of port — it can be any inband port that can configure the entire Virtual Chassis, or it can be any of the out-of-band ports. You don’t necessarily need to interconnect into a 10/100/1000 out-of-band Ethernet port or the console port on the master unit. It can be any of those ports across the Virtual Chassis. The Virtual Chassis is managed through a single IP address. It also maintains a single config and a single image file. When you replace a unit in that Virtual Chassis, the unit that takes its place will take all the characteristics because it is that single config file across the Virtual Chassis.
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Slide 37
Section Summary • In this section we : • Described the EX2200 Access Switch, including • Features • Architecture
• Discussed the EX3200 Fixed Configuration Switch, including • Features • Architecture
• Described the EX4200 with Virtual Chassis™ Technology, including • Features • Architecture
• Described the EX4500 with Virtual Chassis™ Technology, including • Features • Architecture
• Discussed the QFX3500 ToR Fixed Switch, including • Features
• Explained Virtual Chassis™ Technology
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In this section we: •Described the EX2200 Access Switch, including • Features and Architecture •Discussed the EX3200 Fixed Configuration Switch, including • Features and Architecture •Described the EX4200 with Virtual Chassis™ Technology, including • Features and Architecture •Described the EX4500 with Virtual Chassis™ Technology, including • Features and Architecture
•Discussed the QFX3500 Top of Rack Fixed Switch, including • Features and Architecture •Explained Virtual Chassis™ Technology
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Slide 38
Learning Activity 1: Question 1 How many PoE ports does an EX3200 with partial PoE support? A) 4 B) 8 C) 12 D) 24
Submit Submit
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Answer the following questions to review what you’ve learned in this section. Learning Activity 1: Question 1 How many PoE ports does an EX3200 with partial PoE support?
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Slide 39
Learning Activity 1: Question 2 Which of the following describes the uplink ports for the EX4200? A) Built-in B) Required C) Optional D) Not currently available
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Learning Activity 1: Question 2 Which of the following describes the uplink ports for the EX4200?
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Slide 40
Learning Activity 1: Question 3 True or false: The high-performance Juniper Networks QFX3500 Switch addresses a wide range of deployment scenarios, which include traditional data centers, virtualized data centers, high-performance computing, network-attached storage, converged server I/O, and cloud computing. A) True B) False
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Learning Activity 1: Question 3 True or false: The high-performance Juniper Networks QFX3500 Switch addresses a wide range of deployment scenarios, which include traditional data centers, virtualized data centers, high-performance computing, network-attached storage, converged server I/O, and cloud computing.
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Slide 41
EX Series Platform and Technical Overview
EX8200 Terabit Chassis
© 2011 Juniper Networks, Inc. All rights reserved. | www.juniper.net | Worldwide Education Services
Let’s take a look at the EX8200 Terabit Chassis next.
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Slide 42
Section Objectives After successfully completing this section, you will be able to: • Discuss the EX8200 Terabit Chassis, including: • Features • Line cards • Architecture • Power and cooling • Configuration tool
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After successfully completing this section, you will be able to: • Discuss the EX8200 Terabit Chassis, including: • Features • Line cards • Architecture • Power and cooling, and the • Configuration tool
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Slide 43
EX8200 Series • High-performance chassis platforms • EX8208 – Eight 320 Gbps line cards • EX8216 – Sixteen 320 Gbps line cards • 100 GbE ready • Fully redundant routing engines with N+1 redundant switch fabrics • Up to 256 wire-speed, non-blocking 10GbE ports in a rack
• Fully redundant power & cooling • Redundant, load-sharing PSUs (AC, DC) • Hot-swap fan tray with redundant fans
• Proven Juniper Technology • Junos software • Switch fabrics, control plane • Packet Forwarding Engine (PFE) © 2011 Juniper Networks, Inc. All rights reserved.
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We’ll now discuss the EX8200, the terabit chassis, and some of the platform capabilities of that device. The EX8200 Series has two different units: the eight-line-card-slot EX8208 and the 16-slot EX8216. Each of the line card slots in the EX8200 is a 320gigabit-per-second-capable slot into the fabric, meaning that it is 100-gig ready. When the 100-gig Ethernet standard is finalized, we will be able to deploy 100-gig Ethernet within the platform without making changes to the fabric for that platform. The EX8208 can today support 64x10-gig connections with an 8-port 10-gig module or up to 384 gigabit, either 10/100/1000 or 100Base-FX or 1000BaseX through SFP connectivity. The EX8216 doubles the density as far as interface module slots to support 128 10-gig connections or up to 768 gigabit Ethernet types of interfaces. The EX8200 has fully redundant power and cooling. It has multiple redundant power supplies. Each EX8208 or EX8216 has six power supplies, which can support either an N+1 or an N+N type of configuration. AC power supplies are available and DC power supplies are a roadmap item. Each EX8200 has a hot-swappable fan tray with redundant fans. If a single fan fails, the others speed up and continue to keep the unit cool. Then the whole fan tray can be swapped at the customer’s convenience. The EX8200 runs Junos, consistent with the EX3200, EX4200, and other platforms in Juniper’s portfolio. It also runs proven Juniper technology. So, although the EX8200 platform is relatively new, the switch fabric and control plane capabilities are derived from the M Series, the MX Series and, in some cases, the T Series platforms. The hardware capabilities are very similar to those of the EX3200 and EX4200. The fabric
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and control plane support comes from Junos, as it does for the EX3200 and EX4200. The packet forwarding engine in the EX is relatively new technology for Juniper. That provides some of the specific Layer 2 and Layer 3 capabilities found in the Ethernet switching product line.
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Slide 44
EX Series Hardware Feature Capacities
© 2011 Juniper Networks, Inc. All rights reserved.
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This table compares the EX2200, EX3200 and EX4200 with the EX8200 Series. The maximum fabric capacity of the EX4200 is 136 gigabits per second. In the EX8200, it can be up to 6.2 terabits. The EX4200 has a 128 gigabit fabric through the Virtual Chassis ports. Each line card in an EX8200 will support up to 320 gigabits per second. For throughput, a single EX4200 supports 101 million packets per second. The EX8200 supports 960 million packets per second. As you can see, the EX8200 scales to a much greater capacity than the EX4200 because it’s designed for core or high-end aggregation deployments. The MAC table scaling is 12k routes for the EX4200 and 512k for the EX8200. Firewall filters, LAG groups, and the number of ports in a link aggregation group in the EX8200 scales above what is supported for the EX3200 and EX4200. You’ll see at the bottom the local switching that we mentioned for the EX4200 in a Virtual Chassis configuration. This means that an EX4200 that’s part of a Virtual Chassis can make a forwarding decision of whether a packet ingressing a port on one member egresses on that same member or goes across to another member. In the EX8200, on the other hand, a packet ingressing on a line card always goes through the switch fabric, so there is no local switching. If a packet ingresses on port 1 and egresses on port 2, the packet will still always touch the switch fabric. But it is a nonblocking switch fabric, so you don’t have any problems with congestion within the fabric unless you’re trying to oversubscribe a port on egress. Latency going through the centralized fabric is still in the 8 to 12 microsecond range, so it has a very fast switching capability.
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Slide 45
EX8208 Chassis Overview • Passive backplane • •
Current switch fabric capacity 3.1Tbps Supports future scalability to 6.2Tbps
• 14RU height, 21″ depth • •
Three chassis per standard rack All components accessible from the front
• LCD panel •
Allows easy system identification and monitoring
• Two shipping options •
Base Configuration: •
•
(1) SRE, (1) SF, fan tray, and (2) 2kW AC power supplies
Redundant Configuration: •
(2) SRE, (1) SF, fan tray, and (6) 2kW AC power supplies
© 2011 Juniper Networks, Inc. All rights reserved.
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Looking at the chassis itself, the EX8208 currently has a switch fabric capacity of 3.2 Tbps. Future capacity is scalable to 6.2 Tbps. The device itself measures 14 rack units in height, which is about 24 inches, and depth is about 21 inches. Everything is front panel accessible, including all line cards and all CPU modules. There are two shipping options: a base configuration, which will come with a single Route Engine, a single fan tray, as well as two power supplies, and a fully redundant configuration, which comes with all components for a fully redundant type of environment.
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Slide 46
EX8208: Front and Rear Views • 14 RU, 21” deep •
Passive backplane
• Modular components • • • • •
Junos software Routing engines Switching fabrics Multiple power supplies Fan tray
• High performance • • •
Wire-rate on all ports for all packet sizes Distributed forwarding Juniper switch fabric
• High density •
Up to 384 GbE, or 64 10GbE ports in 14RU
• Management • • •
© 2011 Juniper Networks, Inc. All rights reserved.
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The front of the EX8208 has an LCD for basic configuration and troubleshooting of the device. The white slots are the 8 dedicated line card slots: 4 on top, 4 on the bottom. The middle three slots hold the redundant routing engines and switch fabrics. At the bottom, you’ll see the 6 power supplies. On the left, you’ll see the fan tray that provides side-to-side airflow. The EX8208 is 14 RU high and about 21” deep. All the components are modular. It is wire-rate on all ports, consistent with the other products in the EX Series. It supports up to 384 gigabit Ethernet ports or 64 10-gig ports within that form factor. For the EX8208, there is nothing to see in the rear view. The EX8208 is a backplane design, so all components are front-accessible.
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Slide 47
EX8208 Switch Fabric • Proven Juniper switch fabric technology • •
Used in MX and T Series Switch Fabrics resident on SREs and dedicated SF module
• Resilient design • • •
2+1 redundancy Two active, one standby SF Hot swappable
• Credit-based fabric • • •
4,096 WRED virtual output queues per system Distributed scheduling Efficient multicast replication in hardware
© 2011 Juniper Networks, Inc. All rights reserved.
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Looking at the chassis itself – the EX8208: Current switch fabric capacity is 3.2 Tbps. Future capacity is scalable to 6.2 Tbps. The EX8200 fabric is based on fabrics used in the MX and T Series platforms. Note there are two fabric modules — one is a combined fabric and routing engine. Two of these are installed in each EX8208 to provide N+1 fabric and 1+1 route engine redundancy. Only one of the single switch fabrics is utilized for full N+1 fabric availability.
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EX8208: Highly-Scalable Switching Fabric
• 64 x 10GbE ports • 960 Mpps throughput • Wire-rate multicast replication
© 2011 Juniper Networks, Inc. All rights reserved.
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Looking at the architecture of the EX8208, you’ll note, again, there are up to three fabrics in the device for redundancy purposes. One fabric resides on each SRE and the third switch fabric resides there in the center. The blue SREs, or the Route Engines, provide the 1+1 availability. Each one of the line cards has a connection to each one of those three switch fabrics. This provides full, 64 by 10GbE ports in the EX8208; 960 million packets per second (Mpps), which is a full wire-rate throughput on every port on all packet sizes.
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Slide 49
EX8208 Switch Routing Engine (SRE) • Trusted Juniper routing engine technology • Routing Engine and Switch Fabric on same module
• Carrier-class reliability • 1 + 1 redundancy • Master – Backup RE
• High performance, capacity , and scale • 1.2GHz processor • 2GB DRAM • 2GB on-board flash storage
• Flexible management • 10/100/1000 port for out-of-band connectivity • USB disk support for storing configs, logs and Junos images3
© 2011 Juniper Networks, Inc. All rights reserved.
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The Routing Engine is based on Juniper Routing Engine technology, similar to what’s found in the M Series as well as the MX Series. It operates in a 1+1, Master – Backup RE role, and that’s consistent with other Juniper platforms, including the EX4200.
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Slide 50
EX8216 Chassis Overview • Passive mid-plane • •
Current switch fabric capacity 6.2 Tbps Supports future scalability to 12.4 Tbps
• 21RU height, 25” depth • • •
Up to two chassis per standard rack Switch fabrics located in the back Targeted at datacenter, cloud computing and campus core deployments
• LCD panel • Three shipping options • •
Each option ships with eight SFs and two fan trays Base configuration:
•
Redundant configurations:
• • •
(1) RE and (2) 3000W AC power supplies (2) REs and (6) 3000W AC supplies (2) REs and (6) 2000W AC supplies
© 2011 Juniper Networks, Inc. All rights reserved.
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The EX8216 has a current switch fabric capacity of 6.2 Tbps, with maximum scalability of 12.4 Tbps. It’s 21 rack units in height and it’s a little bit deeper than the EX8208 at 25 inches in depth. You can see there are 16 interface module slots, shown in white with the 10 Gig modules in there. The upper two slots are for SREs.
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EX8216: Front and Rear Views
• 21 RU, 25” deep •
Midplane architecture
• Modular components • • • • •
Junos software Routing engines (1+1) Switching fabrics (8) Power supplies (6) Fan trays (2)
• High performance • • •
Wire-rate on all ports for all packet sizes Distributed forwarding Juniper switch fabric
• High density •
Up to 768 GbE, or 128 10GbE ports
• Management • • •
© 2011 Juniper Networks, Inc. All rights reserved.
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The EX8216 is a midplane design, so the front-accessible components include 1+1 redundant routing engines — one a master and one a standby, which you see at the top, just below the LCD — followed by 16 line card slots, each of which are 320 gigabits per second — 8 on top, 8 on the bottom — then 6 power supplies, at the bottom. The rear of the platform supports up to 8 active switch fabrics. The EX8216 is 21 RU high and 25” deep — a little deeper than the EX8208 because of its midplane design. In exchange for those larger dimensions, you have a much higher density — double that of the EX8208. It supports 768 gigabit Ethernet ports or 128 10gig ports. The line cards in the EX8200 Series are interchangeable, meaning you can use the same line cards in both the EX8208 and EX8216. However, the SRE for the EX8208 is not operable in the EX8216 and vice versa. But other components, such as the power supplies and fans are capable of being swapped between the two different devices.
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EX8216 Switch Fabric • Proven Juniper switch fabric technology •
Used in MX Series and T Series
• Resilient design • • •
Eight active load-balanced switch fabrics in the back of the chassis 10GbE line rate performance maintained with single SF failure Hot swappable
• Credit-based fabric • • • •
8,192 WRED virtual output queues per system Single tier low-latency crossbar No head-of-line blocking Efficient multicast replication
© 2011 Juniper Networks, Inc. All rights reserved.
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The switch fabric itself resides on the rear of the EX8216. The switch fabric runs the height of the device. It’s a resilient device. There are up to eight fabrics on the rear. Since it operates N+1, seven are required for operation. The eighth one is fully redundant. It runs a credit-based fabric environment.
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Slide 53
EX8216: Highly-Scalable Switching Fabric
• 128 x 10GbE ports • 1920 Mpps throughput • Wire-rate multicast replication
© 2011 Juniper Networks, Inc. All rights reserved.
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From an architectural standpoint, each one of the line cards — 320 Gbps — is connected to all eight of the switch fabrics, providing, again, up to 128 10 Gig ports; or a full 1.9 billion packets per second of throughput, which again is wire-rate on all ports, at all packet sizes.
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EX8216 Routing Engine (RE) • Trusted Juniper Routing Engine technology •
Dedicated routing engine modules
• Carrier-class reliability • •
1 + 1 redundancy Master – Backup RE
• High performance, capacity and scale • • •
1.2GHz processor 2GB DRAM 2GB on-board flash storage
• Flexible management • •
10/100/1000 port for out-of-band connectivity USB disk support for storing configs, logs and Junos images
© 2011 Juniper Networks, Inc. All rights reserved.
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The Route Engine for the EX8216 is different from the SRE for the EX8208. The RE fits in the first two slots of the EX8216. It provides a master and backup RE. Here you can see some of the performance and scale capacity characteristics of the EX8216 Route Engine.
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Slide 55
EX8200: Line Cards EX820-0-8XS • 8 SFP+ 10GbE interfaces • Line-rate for any packet size or type (64-9216 bytes) • 80Gbps, 118 million packets per second • 8.5 to 11.5 µs port-to-port latency depending on packet size • 8 queues, 512MB buffer per port
•
EX8200-48F • • • • •
48 SFP 100/1000 interfaces Line-rate for any packet size or type (64-9216 bytes) 48Gbps, 71 million packets per second 10 to 25 µs port-to-port latency depending on packet size 8 queues, 42MB buffer per port00
• EX8200-48T • 48 RJ45 10/100/1000 interfaces • Line-rate for any packet size or type (64-9216 bytes) • 48Gbps, 71 million packets per second • 10 to 25 µs port-to-port latency depending on packet size • 8 queues, 42MB buffer per port
© 2011 Juniper Networks, Inc. All rights reserved.
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Line cards for the EX8216 are all interchangeable between the EX8208 as well as the EX8216. There are currently three line cards available: The EX8200-8XS is an eight small form factor plus type of device for optics. That’s a 10 Gbps device — every port; full wire-speed; up to eight queues per port; 512 MB buffer per port. The EX8200-48F offers 48 ports of small form factor pluggable for Gigabit fiber. The EX8200-48T provides up to 48 copper interfaces. All interfaces on these cards connect at full wire rate into the fabric, so you have the maximum performance. You would typically deploy the 8-port 10-gig as well as the 48 ports of fiber in a core interconnect, either 10-gig or gigabit interconnects for aggregating wiring closet switches back into an EX8200. The 48T is typically utilized for server connections — specifically server connections in a data center or an end-of-road type of application, as opposed to deploying it in a campus type of environment with wiring closets for your desktop configuration. The reason for that is that, in its first shipment, the EX8200 does not support any PoE. For deployments of PoE, we would position the EX4200 or EX3200, depending on density requirements.
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Slide 56
EX8200 Control Plane Architecture
• 512,000 IPv4 Routes • 160,000 MAC Addresses • 64,000 Access Control Lists
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The control plane architecture is consistent for the various devices. You can see on each one of the line cards we have the PFE — the packet forwarding engine. This is very consistent with the fixed platform lines. The number of PFEs is variable, depending on the line card type. The line cards that we show here have four PFEs. This is consistent with the eight port 10 Gig, where each PFE is supporting two 10 Gbps ports. On the 48 port modules there would be two PFEs, each one supporting up to 24 ports. In turn these connect back into the line card CPU, which in turn has connections to the pair of Route Engines available in each one of the platforms.
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Slide 57
EX8200 Line Card Architecture (8-port 10GbE)
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If you look at the 10 Gig line card architecture, you’ll see four PFEs and 320 Gbps to the switch fabric. Each PFE supports up to two 10 Gig interfaces.
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Slide 58
EX8200 Line Card Architecture (48-port GbE)
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Moving to the 48-port line card, each PFE will support up to 24 ports for a total of 48 ports on the line card. It doesn’t matter whether it’s the 48-port copper or the 48-port fiber.
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Slide 59
EX8208 Power System • Auto-sensing power supplies • 2000W AC at 200–240V • or1200W AC at 100–120V • 2000W DC at -48VDC
• Efficient energy consumption • Over 90% efficient power supply design • 6000W maximum system power draw
• Carrier-class reliability • Up to six load sharing and hot swappable supplies per chassis • Supports N+1 or N+N power redundancy
© 2011 Juniper Networks, Inc. All rights reserved.
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The EX8208 utilizes an AC power supply. There’s also now a DC power supply that is available. The AC power supply operates at a 2000 watt AC at 200 to 240 volts, or if it’s running AC at 120 volts, it will operate at 1,200 watts. This gives a 6000 watt maximum system power draw and it is capable of supporting a full compliment of line cards in the EX8208.
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Slide 60
EX8208 Cooling and Environmental • Complete cooling redundancy • Dual, redundant fan controllers • Modular, hot-swappable fan tray with 12 variable speed fans • Cooling maintained with individual fan failure; graceful system shutdown in thermal overload situations
• Flexible thermal designs • 0-40 degrees normal operational range • Hot-aisle, cold-aisle data center designs supported with external baffles • NEBS 3 environmental standards
© 2011 Juniper Networks, Inc. All rights reserved.
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The cooling system uses a single fan tray with multiple blowers. In the event that one of the fans fails, the other fans will speed up to continue to cool the device. It is a side-toside type of cooling environment, and you can see the details here. It runs at 77 cubic meters per minute.
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Slide 61
EX8216 Power System • 3000W power supply • 3000W AC at 200-240V • 3000W DC at -48VDC
• 2000W auto-sensing power supply • 2000W AC at 200–240V • 1200W AC at 100–120V
• 2000W DC at -48VDC
• Efficient energy consumption • Over 90% efficient power supply design • Supports up to 15000W system power draw
• Carrier-class reliability • Up to six load sharing and hot swappable supplies per chassis • Supports N+1 or N+N power redundancy
© 2011 Juniper Networks, Inc. All rights reserved.
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The EX8216 power system is also supported by the same 2000 watt supplies used in the EX8208. In addition, there’s a 3,000 watt AC supply that is supported in the EX8216 to allow it to support a full complement of line cards. The 2,000 watt supplies of course can only support up to 8 line cards – similar to the EX8208 model.
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EX8216 Cooling and Environmental • Complete cooling redundancy •
Dual, redundant fan controllers per fan tray
•
Modular, hot swappable fan trays with nine variable speed fans each
•
Cooling maintained with individual fan failure; graceful system shutdown in thermal overload situations
• Flexible thermal designs •
0-40 degrees normal operational range
•
Hot-aisle, cold-aisle data center designs supported with external baffles
•
NEBS 3 environmental standards
© 2011 Juniper Networks, Inc. All rights reserved.
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Cooling for the EX8216 is very similar to that of the EX8208. However, it uses two fan trays; one for the upper complement of line cards and one for the lower complement of line cards.
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Slide 63
EX8208 Configuration Tool
© 2011 Juniper Networks, Inc. All rights reserved.
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For those interested in how many power supplies are required for a particular complement of line cards, there is a flash based tool for both the EX8208 as well as the EX8216. This allows you to simply plug in the various line cards that you want to configure within the device to determine what kind of power redundancy you require, whether you need N+1 or N+N, the input voltage, and it will give you an idea of the capabilities supported by the device. This also is a nice tool because it acts as a configurator tool and will provide you with the model number, description and pricing information, so that you can help a customer with a quote.
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EX8216 Configuration Tool
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There’s a similar tool for the EX8216; it follows the same type of guidelines, but of course uses the EX8216 chassis instead of the EX8208 chassis.
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Slide 65
Section Summary In this section, you have learned to discuss: • EX8200 Modular Terabit Chassis • Features • Line cards • Architecture • Power and cooling • Configuration tool
For more information and the latest technical specifications: http://www.juniper.net/products_and_services/ex_series/index.html © 2011 Juniper Networks, Inc. All rights reserved.
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In this section, you have learned to discuss: The EX8200 Terabit Chassis, including the • Features • Line cards • Architecture • Power and cooling, and the • Configuration tool
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Slide 66
Learning Activity 2: Question 1 Up to how many power supplies does an EX8200 have? A) 3 B) 4 C) 6 D) 8
Submit Submit
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Answer the following questions to review what you’ve learned in this section. Learning Activity 2: Question 1 Up to how many power supplies does an EX8200 have?
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Learning Activity 2: Question 2 Is the following statement true or false? All packets go through the switch fabric in an EX8200. A) True B) False
Submit Submit
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Learning Activity 2: Question 2 Is the following statement true or false? All packets go through the switch fabric in an EX8200.
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Learning Activity 2: Question 3 What is the current maximum fabric capacity of the EX8216? A) 3.2 Terabits B) 6.2 Terabits C) 136 Gbps D) 960 Gbps
Submit Submit
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Learning Activity 2: Question 3 What is the current maximum fabric capacity of the EX8216?
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Learning Activity 2: Question 4 What is the main advantage provided by the midplane design of the EX8216? A) Higher density B) Higher throughput C) Better cooling D) Simpler management
Submit Submit
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Learning Activity 2: Question 4 What is the main advantage provided by the midplane design of the EX8216?
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Slide 70
EX Series Platform and Technical Overview
© 2011 Juniper Networks, Inc. All rights reserved. | www.juniper.net | Worldwide Education Services
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Slide 71
Section Objectives In this section we will discuss: • The biggest trend in the Data Center (Virtualization) • What is Junos Space Virtual Control? • Solutions with Junos Space Virtual Control
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In this section we will discuss: • The biggest trend in the Data Center (Virtualization) • What is Junos Space Virtual Control? • Solutions with Junos Space Virtual Control
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Slide 72
Virtualization
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The biggest trend in data centers is server virtualization. Lets look at what happened with servers in past 15 years or so. This shows the trends from latest IDC report , Red line shows growth in number of physical servers from an install base, and the Green line equates to the total number of logical servers installed. Starting in 2008, we see the total number of virtual servers growing exponentially, where the total number of physical servers stays stagnant. Virtualization provides capital expenditure benefits, but managing the logical servers has remained costly . We need to simplify management of Physical and virtual infrastructure.
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DC manageability challenges with Server Virtualization
1. Blurred roles between the server and network admin 2. No automation/ orchestration to sync-up the 2 networks 3. VM Migration can fail 4. Proprietary products and protocols
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- The big challenge with Data Center manageability is the notion that there is now a physical network and a virtual network. - The physical network is the network we can see, consisting of switches, routers, etc. - Typically the Network Admin owns the switches and the Server admins own the servers - With virtualization now we have switches sitting on the Server. - Who owns what now? - Because of this how do these 2 network sync up? How do they communicate when there is a change? - Any mistakes can be costly during VM migration. - Proprietary Protocols just add to the problem. - So what is the solution?
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Solutions with Junos space virtual control
1. Clear roles and responsibilities 2. Automated orchestration between physical and virtual networks 3. Scalable solution – allows VMs to move freely 4. Open architecture
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-With Junos Virtual Control We solve the who owns what problem by letting the network admin own all the Virtual and Physical Switches -This frees up the server admin to just administrate the server. - Enabling Orchestration between the physical and virtual network. - now we have a scalable solution. Juniper’s solution to this problem is built around Junos Space, and is specifically based on an application called Virtual Control, which acts as a single point of management. Think of it as a control tower in an airport where the network administrator, who previously only had access to the physical network, sits. From this location, Junos Space Virtual Control, acts as a central point of control and management for both the physical and virtual networks. As the diagram shows, Virtual Control talks to both the physical and virtual network, enabling this automated orchestration. If a virtual machine tries to move, Virtual Control will detect it and provision the physical network to facilitate this vMotion migration. Juniper partnered with VMware on Virtual Control, which we launched back in May. Our solution is very elegant since it is non‑intrusive; it’s open; it works with VMware, but it's based on a very open architecture. We're also working with other hypervisor vendors to provide the exact same solution for environments using their hypervisors.
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What is Virtual Control? • Virtual Control solution allows users to manage, monitor, and control the virtual networks that run within virtualized servers deployed in the data center.
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Virtual Control enables flexible operational deployment models and management handoffs between network and server teams, depending on the policies and needs of the organization, to ensure maximum business agility. Virtual Control’s Virtual-to-physical Mapper and P+V Dynamic orchestrator features also fully automate physical infrastructure provisioning, helping to eliminate configuration conflicts between virtual and physical networks and increasing the efficiency of day- today network operations.
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Virtual Control Use Case #1: Deployment with vDS
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Virtual Control is able to control both the Physical and Virtual Switch - Solving the problem of Blurred Roles of responsibilities. This gives the Network Admin control of all the switches Virtual and Physical.
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Virtual Control Use Case #2: Deployment with vNetwork Standard Switch
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Virtual Control is able to control both the Physical and Virtual Switch -Solving the problem of Blurred Roles of responsiblities. This gives the Network Admin control of all the switches Virual and Physical. -Virtual Control does not require VMware vDS Enterprise Plus license for enabling Orchestration
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Virtual Control Features •
Simplifies Management • Seamless network discovery • Clear roles and responsibilities
•
Open Architecture • Proprietary vs. non proprietary implementations
•
Physical and Virtual Orchestration • Network device Configuration and grouping • Support for VMware vDS and vSS management • Deployment flexibility and reduced cost • Supports both vSS and vDS deployments;
Only vendor to support management of standalone virtual Switch vSS; savings on VMware Enterprise Plus license • Max scalability: Reduces TCO •
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Virtual Control allows for the following three attributes: • • •
Dramatically simplifies the Data Center orchestration by allowing the physical and virtual network to work in concert. It reduces the total cost of ownership (TCO) by providing operating consistency and visibility throughout the network and reducing the number of devices to manage. Improves business agility by accelerating server virtualization deployments
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Slide 79
Section Summary • In this section, we discussed: • The biggest trend in the Data Center (Virtualization) • What is Junos Space Virtual Control? • Solutions with Junos Space Virtual Control
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In this section we discussed: • The biggest trend in the Data Center (Virtualization) • What is Junos Space Virtual Control? • Solutions with Junos Space Virtual Control
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Slide 80
Learning Activity 3: Question 1 True or false: Virtual Control is able to control both the Physical and Virtual Switch. A) True B) False
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Learning Activity 3: Question 1 True or false: Virtual Control is able to control both the Physical and Virtual Switch
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Slide 81
EX Series Platform and Technical Overview
EX Series Deployment Examples
© 2011 Juniper Networks, Inc. All rights reserved. | www.juniper.net | Worldwide Education Services
Now let’s move on and look at some EX Series Deployment Examples.
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Slide 82
Section Objectives After successfully completing this section, you will be able to: • Discuss data center infrastructure • Top of rack configurations • End of row configurations
• Discuss small/large branch office infrastructure • Discuss campus/HQ infrastructure • Cite campus deployment examples
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After successfully completing this section, you will be able to: • Discuss data center infrastructure, including: • Top of rack configurations, and • End of row configurations • Discuss small and large branch office infrastructure • Discuss campus and headquarter infrastructure, and • Cite campus deployment examples
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Slide 83
The End-to-End Juniper Enterprise Portfolio
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Let’s now discuss where the platforms in the EX Series would fit in particular customer environments and where we would position those products. The EX is well represented in this enterprise portfolio overview. You typically would have a campus environment or a building or corporate headquarters type of environment. Although the slide doesn’t specifically state it, you would typically have a number of different layers. You’d have an access layer where you would connect such things as desktop devices, printers, or phones. Those devices are connected to access switches, which in turn are connected into what we would call an aggregation layer. That aggregation layer may or may not be in every one of the customer environments. In turn you may have those intermediate distribution frames or that aggregation layer connected back into a core of a customer’s campus where there are multiple buildings, multiple manufacturing facilities, whatever it may be. A branch office, at the upper right, is similar in deployment to a building campus or a corporate headquarters, but usually on a smaller scale. As such, you typically don’t have as many layers. You’ll still have the access layer where you connect your desktop devices, phones, printers, wireless access points, and so on. Those are probably interconnected back to what you could call a core or aggregation layer. It’s just a way of interconnecting multiple devices in that branch office. Branch offices usually have a smaller number of users, so the density of ports within the devices and the number of devices are not as high. In the data center, at the lower right, you can follow that three-layer model: access, aggregation, and core. But we talk a lot about collapsing layers within the data center.
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We can sometimes collapse a core and an aggregation layer. Because a data center is usually within a single location, that interim layer of distribution or aggregation is often not required. We have the density in the EX8200. We have the flexibility of the Virtual Chassis. We don’t necessarily need to have that interim layer of devices that have been traditionally deployed in the distribution or aggregation layer of the data center just to support the number of interfaces. We can get around that and that helps customers reduce the cost of deployment. It also helps them reduce the cost of operating a data center environment. More detailed information on that is available in some of the sales decks we have around the data center that talk about how we do that with the EX8200 and how we do that with the Virtual Chassis.
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Slide 84
Data Center Infrastructure
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Let’s look at the data center. We’ll follow the three-tier model because it shows the locations where we can deploy a lot of these devices. There can be two types of deployment at the access layer. Let’s first look at the access on the far left. The access layer interconnects the servers in racks in a data center. The switches that support those servers can be in one of two locations. We can deploy in what’s called top of rack, which means that the switches themselves are collocated in the same rack as the servers. The other option is what we would call an end of row type of solution, meaning that within a row of racks, many of the racks will support different servers but one rack at the end of that row holds the switches. The advantage of the top of rack solution is that the cables run only from the server up to the switches in that rack. There’s a minimal amount of cabling and it doesn’t extend across rows or across racks in the data center environment. In the end of row solution, you would typically have a large amount of server cabling running across multiple racks to that switch rack at the end of the row. The advantage of the end of row solution is that you can better cable the number of servers in each rack, meaning that at the end of row, you may deploy a number of switches, and if you have only 5 servers in one rack and 10 servers in another, the top of rack solution in that 5-server example, you might put in a 24-port switch. But you’re only using 5 of those ports, so 19 of those ports are unused. In an end of row solution, you can cable the 5 servers in that rack back to the end of row rack where the switch is located and you have to support only 5 ports out of it.
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For top of rack, where you have a minimal amount of space, we will want to deploy 1 or 2RU switches. We usually position the EX4200 or the EX4500 Series there because the EX3200 lacks redundant power supplies. Also the EX4500 is perfect for TOR deployments, with 10GbE or 1GbE interfaces. In the top of rack, we can interconnect multiple top of rack switches into a Virtual Chassis. Typically, you would have 2 top of rack switches, primarily for redundancy. In addition, we can extend that Virtual Chassis across racks in a row, reducing the amount of management. You could use a Virtual Chassis in an end of row but, if you find yourself being pushed into a modular platform, the EX8200 can be deployed as an end of row device. As you interconnect those access switches back into what we’ll loosely call the core of the network, you typically deploy EX8200 in the core. It has very high densities of gigabit Ethernet or 10-gig Ethernet connectivity. In this diagram, there are actually 2 layers: there’s an aggregation layer, shown by the 6.2 terabit chassis, the EX8216, or the EX8208. You want to keep the core as simple as possible; keep it with a pair of devices.
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Slide 85
Data Center Top of Rack
• Single row, top of rack implementation • Up to 3 meters between racks •
Daisy-chained configuration with extension to complete ring
• Single logical chassis across racks within row • Up to 480 GbE server ports and 16 10GbE uplinks • 2+8 Master redundancy • •
Master Priority of 250 on RE0 and RE1 Master priority of 128 on Line Cards
• Spatial separation of Master and Backup RE • Reduce Spanning-tree scope by factor of 10 © 2011 Juniper Networks, Inc. All rights reserved.
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This slide shows only 1 switch per rack, but it could easily be 2 switches per rack and we could have 2 Virtual Chassis extending across those 10 racks. Or we could have 5 racks, each with a pair of Virtual Chassis switches. This shows a very simple daisychain type of configuration. It allows us to have up to 3 meters between racks. Then we’ve completed the Virtual Chassis looped through the 10-gig interfaces for the Virtual Chassis extension. This is a very dense configuration: 480 gigabit ports and up to 16 10-gig ports. It has high levels of redundancy, master and redundant routing engines, and the 8 line card switches that have the capability to become either a master or a standby routing engine. In this kind of configuration, it’s good to have spatial separation of the master and backup routing engines. They have been equally spaced by hop count. This is a best practice; in the very rare case where you would have two members or two uplinks fail simultaneously, you will not split the Virtual Chassis into 2 Virtual Chassis. If you did so, RE0 would be in one and RE1 would be in the other.
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Best Practice: Data Center Top of Rack
• Single row, top of rack implementation • Up to 3 meters between every other rack •
Braided configuration
• Single logical chassis across racks within row • Up to 480 GbE server ports and 20 10GbE uplinks • 2+8 Master redundancy • •
Master Priority of 250 on RE0 and RE1 Master priority of 128 on Line Cards
• Spatial separation of Master and Backup RE • Reduce Spanning-tree scope by factor of 10 © 2011 Juniper Networks, Inc. All rights reserved.
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The best practice for a top of rack configuration is what we call the braided configuration. The previous example is the daisy chain, where we have to use 10-gig uplink ports to complete the loop of the Virtual Chassis. With the braided configuration, we don’t necessarily need to do that. Remember that the braided configuration goes from unit 1 to 3, 2 to 4, and so on, interleaving the units. The 2 units at each end of the Virtual Chassis are then interconnected to one another to complete the loop. This allows us to have up to 3 meters between every other rack. We don’t have to utilize the 10-gig connection to complete the Virtual Chassis across the top of rack. Other than that, density-wise, it’s about the same, but because we didn’t use 10-gig uplink ports for Virtual Chassis extensions, we can use them for 10-gig uplinks. We have an additional 4 ports available.
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Best Practice: Data Center Multi-Row Top of Rack • Multi-row, top of rack implementation • Up to 3 meters between every other rack • •
Braided configuration Virtual Chassis Extension across rows
• Single logical chassis across multiple rows • Up to 480 GbE server ports and 16 10GbE uplinks • 2+8 Master redundancy • Spatial separation of Master and Backup RE
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You can also extend a Virtual Chassis across rows. We set up a braided configuration on 2 different rows (you could use the daisy-chain configuration if you so desired), and we extend the Virtual Chassis with the gig or 10-gig connections. This gives the customer some very flexible top of rack types of deployments for their data center environment.
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Slide 88
Best Practice: Data Center End of Row
• End of row implementation • Braided configuration • Single logical chassis in 10 rack units • Up to 480 GbE server ports and 20 10GbE uplinks • 2+8 Master redundancy
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We talked about end of row being an EX4200 or EX4500. It can also be an EX8200. In this diagram, we show an end of row option with a Virtual Chassis of up to 10 members. It has 480 gigabit ports and up to 20 uplinks in 10 rack units of height. If you’re comparing this against an EX8200, you would find only 384 ports with no uplinks or 320 10/100/1000 ports and 8 10-gig uplinks in 15 rack units. From a density versus space perspective, the Virtual Chassis has some real benefits, even in an end of row type of configuration. Let’s move away from the data center. We mostly skipped the core piece but the core is typically the EX8208 or the EX8216, depending on density. You could use the EX4200 in a data center core, but keep in mind that a lot of data center cores will use 10-gig interfaces and it’s probably better to use an EX8200 for those types of configurations. In an instance where you come across a customer data center that still interconnects through gigabit, another option is to use EX4200-24F, the fiber aggregator type of device for a data center core.
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Slide 89
Legacy Data Center Network Infrastructure • Too many devices and layers • Too many operating systems • High latency • Uptime is a challenge • Takes too long to deploy anything
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So with that as background for a baseline of what people are faced with in the data center, we at Juniper did what we do best: we drew a network diagram to understand the architecture. Here you see a simplified diagram of a data center network. Most data center networks are built with a top of rack (TOR) access switch that connects two uplinks to an aggregation switch. Every rack has two uplinks connected to expensive aggregation ports. The aggregation layer is built out horizontally and aggregated to a core layer. Often times, there may be multiple tiers of aggregation. Then the Core connects to the Campus or Branch locations through the WAN. Large Layer 2 domains using Spanning Tree are inherently prone to failure and malfunction. End-of-row and aggregation switches were originally built for campus environments — several limitations in the building blocks, namely the forwarding engine, route engine, switch fabric — oversubscription corner-cases are unpredictable and can’t provision a new application with confidence. Security is an afterthought — customers usually end up with a band-aid of dozens of security blades across the aggregation layer — consuming lots of power and space.
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A different operating system in each layer makes it operationally expensive and cumbersome.
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Slide 90
Juniper Simplifies the Data Center Network
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The Stratus Project, which has already filed over 30 patent applications, is a multi-year initiative within Juniper to get to the end-stage of a single fabric across the entire data center. Today, Juniper is delivering a number of technologies in the first phase of the simplification of the data center network: • Starting with the access layer – Virtual Chassis technology enables up to 10 devices to be managed, operated, and maintained as if they are one. • So a single control plane function across 10 devices effectively reduces the number of managed network devices by up to a factor of 10. •If you are managing 500 switches in your data center today, imagine how much simpler things would be if you only managed 50! • A single config file, a single management IP address, and a single OS image across 10 devices. • Typically, you would run two uplinks per rack, but with VC technology, uplinks are shared across the entire VC. This cuts down the number of very expensive aggregation ports that eat up a lot of budget. •In the Core layer — you will notice that we do not need an aggregation layer. By decreasing the number of uplinks and building wire-rate 10GbE in the core, we can effectively eliminate the aggregation layer all together. The EX8200 platform provides wire-rate performance for all packet sizes so you can drive all 10GbE uplinks at full capacity at all times.
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•We can support up to 3000 servers on just two EX8208s in the core, and 6000 servers on just two 8216s. So there are some fairly big data centers that can be built using this 2-tier architecture. •Remember all those appliances in the legacy data center network? Juniper’s dynamic services architecture in the ground-breaking SRX platform effectively consolidates dozens of firewall, intrusion prevention, NAT and QoS appliances into a single device. •And by the way, the SRX is the fastest firewall on the market, by a really wide margin. But what’s even more interesting is that, as you need more firewall capacity, it’s as simple as adding more processing power — no extra devices, configurations, or OS’s. •Finally, for connecting to other data centers, we are using VPLS to provide layer adjacency. This virtualization technology replaces multiple overlay networks that are classically put in place to connect different facilities to each other. •All of this, the entire data center network, runs on a single operating platform: Junos software, which makes operating this network much simpler.
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Slide 91
EX2200 Enterprise Deployments
Typical Deployments • Low-density wiring closets • Workgroup • Retail store • Office of 48 or less • K-12
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Here we’re looking at deployments of the EX2200 within a campus or a branch location. The EX2200 is designed specifically for branch office environments, and you can see here, in the first diagram, an EX2200 in a small branch, typically of 24 or 48 ports, coupled with an SRX for routing and firewall and IPS capabilities. Anything under 20 ports, typically the SRX can manage those Ethernets by itself. But if you have 20 ports or more, you’re going to want to deploy an Ethernet switch and the EX2200 is ideal for these lower density branch types of locations. In addition, the EX2200 could be deployed in wiring closets. The EX3200 and EX4200 are also capable of being deployed there. The best choice depends on what the customer’s density requirements are as well as what features and functionality they desire. If they require only basic Gigabit Ethernet uplinks with basic Layer 2 or basic Layer 3 routing protocols, the EX2200 is a good entry level product for those types of deployments. The EX2200 is also excellent for workgroup types of deployment, where you might have a large number of users deployed in an open area type of location. It can act as a good device for aggregating multiple user devices in those types of locations, where just some basic capabilities are required.
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Slide 92
Small Branch Office Infrastructure(24-48 Ports)
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Here’s a simple branch office with just a few devices. You could deploy an EX3200 with 24 or 48 ports and either partial or full PoE, depending on the requirements. In some highly critical deployments, you could position the EX4200 because it has the redundant fan and the redundant power capability. You would typically lead with the EX3200 because of its lower cost or the EX4200 for very business-critical types of environments.
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Slide 93
Large Branch Office Infrastructure (Multiple Floors, >100 Ports)
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As we get into larger branch office types of implementations, greater than about 100 ports, depending on customer layout, the EX3200 may fit some of those environments, but the EX3200 is a fixed-configuration device. If we move into wiring closets that require more than about 48 ports, we’ll want to look into using the Virtual Chassis with the EX4200. Again, with the Virtual Chassis, you get 480 ports and up to 20 10-gig uplinks or up to 40 gigabit uplinks back into the core of that environment. These larger branch office infrastructures usually have multiple wiring closets. You can use Virtual Chassis to interconnect multiple wiring closets to reduce the number of managed devices. We can be more flexible with how we deploy uplinks when we extend the Virtual Chassis across wiring closets. Typically, you’ll have a core environment. That’s shown here as the EX4200 Series Virtual Chassis in that core. You’ll probably use the fiber aggregator modules, the EX4200-24F, in those locations.
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Slide 94
Campus/HQ Infrastructure
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As we get into larger campus-type infrastructures, where there might be multiple buildings, the EX3200 would work for wiring closets with 48 ports or less. For anything greater than 48 ports, you’d probably want to deploy the Virtual Chassis with the EX4200 and maybe even extend the Virtual Chassis across wiring closets. If it’s a single building, you may just have a single core. But if you have multiple buildings, which is common in campus environments, you’d typically have an intermediate distribution frame or some type of aggregation distribution layer. The EX8200 will support 384 ports of gigabit aggregation. The EX4200 will support up to 240 ports of aggregation in a full Virtual Chassis. Depending on the customer requirements as far as gigabit density, you have a choice between EX4500 and EX8200 in that aggregation layer or that intermediate distribution frame. Of course, if you are going to use 10-gig connectivity back into that layer, then your best choice is an EX4500. You see a pair of EX8208s in the core. This is fairly typical for redundancy, depending on customer requirements. It could be an EX4500 Virtual Chassis, but it will usually be an EX8200 for deployment in the core.
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Slide 95
Campus Deployment: Wiring Closet
• Maximize ports in each wiring closet Virtual ChassisTM • Single logical chassis with up to 480 GbE ports • Braided dedicated Virtual ChassisTM configuration • Dual uplink to Aggregation Layer • Spatial Virtual ChassisTM separation in Aggregation Layer
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For the campus wiring closet, the EX4200 Virtual Chassis supports up to 480 10/100/1000 ports with full Class 3 PoE capability on all those ports. You can certainly extend that across wiring closets. You’re going to build your link aggregation groups back into the aggregation or the core environment where we show two pairs of EX420024Fs in two Virtual Chassis. We call this spatial redundancy: a Virtual Chassis in one location, another Virtual Chassis in another location. That way, the failure of any one Virtual Chassis or the failure of any one location will not bring down the interconnection into the core environment.
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Slide 96
Campus Deployment: Wiring Closet (Cont’d.)
• Maximize ports in each wiring closet Virtual ChassisTM • Single logical chassis with up to 480 GbE ports • Braided dedicated Virtual ChassisTM configuration • Dual uplink to Aggregation Layer • Spatial Virtual ChassisTM separation in Aggregation Layer • Single Virtual ChassisTM in Aggregation Layer
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An option for the campus wiring closet is to use just a single Virtual Chassis in that aggregation layer rather than having the spatial redundancy. This could be valuable in some customer environments. It usually reduces the number of managed devices. It may even reduce the cost because they have fewer physical devices in that layer.
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Slide 97
Virtual ChassisTM Across Multiple Wiring Closets • Cross-floor Virtual ChassisTM • Two or more wiring closets
• Single logical chassis with up to 480 GbE ports • Braided dedicated Virtual Chassis configuration • One uplink from each wiring closet to Aggregation Layer • Single Virtual ChassisTM or spatial separation in Aggregation Layer
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This slide shows about the same thing, but with multiple wiring closets on multiple floors. If we have an environment of wiring closets, perhaps 150 or 180 ports in a wiring closet, and a wiring closet on the floor below or above with the same number of ports, we probably don’t need all 10 members of a Virtual Chassis in a wiring closet. We can extend that Virtual Chassis across wiring closets to maximize the capabilities of the Virtual Chassis. Again, it reduces the amount of managed devices that a customer needs to look at. A Virtual Chassis uses a single image file, a single config, and a single IP address. In addition to that, we have some design flexibility. If we extend the Virtual Chassis across wiring closets, we can extend our uplinks across wiring closets. Perhaps we don’t need as many uplinks per wiring closet as we did with the previous design. This saves the customer not only the cost of deployment but also saves on the operational side.
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Slide 98
Legacy Campus LAN Architecture
• Oversubscribed interfaces requires additional links • Each wiring closet and each aggregation core device must be managed • 14 managed LAN devices
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A legacy LAN architecture is very wiring closet-centric. It typically has multiple uplinks from each wiring closet into an IDF, or intermediate distribution frame — also referred to as the aggregation or distribution layer. In turn, that’s connected back into the core.
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Slide 99
Virtual Chassis Simplifies the Access
• EX4200 Virtual Chassis across wiring closets • Up to ½ fewer uplinks • Fewer (10) managed LAN devices
© 2011 Juniper Networks, Inc. All rights reserved.
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You can vastly simplify this architecture by deploying EX4200s in the wiring closet and extending those Virtual Chasses across wiring closet locations, thereby reducing the number of managed devices. We started with 14 managed devices. By extending the Virtual Chassis across the wiring closets we reduced that to 10 managed devices. In addition to that, we have fewer uplinks because we can extend our uplinks across multiple devices in the Virtual Chassis, which means fewer ports in the aggregation layer and possibly fewer devices in the aggregation layer. Also, because PoE was required to power phones, and Access Points here, there is a need to use the EX4200 with PoE capabilities.
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Slide 100
Virtual Chassis Simplifies the Aggregation
• Virtual Chassis Technology at Aggregation • Fewer aggregation uplinks • No blocked links, independent of Layer 2 • 8 managed LAN devices • EX8200 for the LAN core © 2011 Juniper Networks, Inc. All rights reserved.
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We can further simplify the aggregation layer by utilizing the Virtual Chassis there as well, with the EX4500 model. Here, we’ve further reduced the number of managed devices now, from 14 down to 8. Then, in the core, we’re typically going to place an EX8200 because of its density for Gigabit as well as 10 Gigabit Ethernet capabilities.
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Slide 101
Virtual Chassis Simplifies the Core
• • • •
Simplified architecture Up to ten IDFs per VC Six managed devices Up to 45% TCO savings
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The maximum level of simplification is to actually collapse the core and aggregation within the campus environment, utilizing the Virtual Chassis, and you can see here we used the EX4500 VC’s. We have a pair of Virtual Chasses for resiliency. But we’ve removed the EX8200s from the core and are only utilizing that Virtual Chassis. This really gives the maximum level of simplification. We can have up to ten buildings supported, utilizing only six managed devices, and the savings here are tremendous – up to 45% total cost of ownership. We’re reducing the amount of CapEx to purchase the devices; we’ve reduced the number of managed devices and therefore we’re reducing the amount of operational expense to manage that infrastructure.
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Slide 102
Section Summary • In this section, we: • Discussed data center infrastructure, including: • Top of rack configurations • End of row configurations
• Discussed small/large branch office infrastructure • Discussed campus/HQ infrastructure • Cited campus deployment examples
© 2011 Juniper Networks, Inc. All rights reserved.
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In this section, we: • Discussed data center infrastructure, including: • Top of rack configurations, and • End of row configurations • Discussed small and large branch office infrastructure • Discussed campus and headquarter infrastructure, and • Cited campus deployment examples
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Slide 103
Course Summary • In this course, we discussed: • EX2200, EX3200 and EX4200 Product Descriptions • EX2200 Fixed Configuration • EX3200 Fixed Configuration • EX4200 with Virtual Chassis™ Technology • EX4500 with Virtual Chassis™ Technology • QFX3500 Fixed Configuration
• EX8200 Terabit Chassis Product Descriptions • EX8200 Hardware Overview • Switch Architecture • Power and Cooling Architecture
• Junos Space Virtual Control • EX Series Deployment Examples
For more information and the latest technical specifications: http://www.juniper.net/products_and_services/ex_series/index.html
© 2011 Juniper Networks, Inc. All rights reserved.
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In this course, we discussed: • EX2200, EX3200 and EX4200 Product Descriptions • EX2200 Fixed Configuration • EX3200 Fixed Configuration • EX4200 with Virtual Chassis™ Technology • EX4500 with Virtual Chassis™ Technology • QFX3500 Fixed Configuration • EX8200 Terabit Chassis Product Descriptions • EX8200 Hardware Overview • Switch Architecture • Power and Cooling Architecture • Junos Space Virtual Control, and • EX Series Deployment Examples
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Slide 104
Learning Activity 4: Question 1 In which of the following data centers’ layers could you use the EX8200 platform? A) Core B) Aggregation and core C) Access, aggregation, and core D) Access and core
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Answer the following questions to review what you’ve learned in this section. Learning Activity 4: Question 1 In which of the following data centers’ layers could you use the EX8200 platform?
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Learning Activity 4: Question 2 Why would you want spatial separation between master and standby routing engines in a data centers’ top of rack Virtual Chassis of 10 members? A) To prevent contention in election of a master B) To avoid splitting the Virtual Chassis into two C) To prevent forwarding loops D) To avoid increasing the hop count
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Learning Activity 4: Question 2 Why would you want spatial separation between master and standby routing engines in a data centers’ top of rack Virtual Chassis of 10 members?
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Learning Activity 4: Question 3 Why would a customer consider using an EX3200 over an EX4200 in a branch office with less than 48 ports? A) Lower cost B) PoE coverage C) Compact size D) Lower latency
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Learning Activity 4: Question 3 Why would a customer consider using an EX3200 over an EX4200 in a branch office with less than 48 ports?
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Additional Resources • Juniper Networks Education Services Curriculum • http://www.juniper.net/us/en/training/technical_education/
• Juniper Networks Technical Certification Program • http://www.juniper.net/us/en/training/certification/
• Juniper Networks Virtual Labs • https://www.juniper.net/partners/partner_center/common/training/virtual_lab.jsp
• To submit errata or for general questions •
[email protected]
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For additional resources or to contact the Juniper Networks eLearning team, click the links on the screen.
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Evaluation and Survey • You have reached the end of this Juniper Networks eLearning module • You should now return to your Juniper Learning Center to take the Practice Test and the Student Survey • The test will allow you to gauge your knowledge of the material covered in this course • The survey will allow you to give feedback on the quality and usefulness of the course
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You have reached the end of this Juniper eLearning module. You should now return to your Juniper Learning Center to take the Practice Test and the Student Survey. The test will allow you to gauge your knowledge of the material covered in this course. The survey will allow you to give feedback on the quality and usefulness of the course.
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© 2011 Juniper Networks, Inc.
Juniper Networks, Inc. All rights reserved. Juniper Networks, the Juniper Networks logo, Junos, NetScreen and ScreenOS are registered trademarks of Juniper Networks, Inc. in the United States and other countries. JunosE is a trademark of Juniper Networks, Inc. All other trademarks, service marks, registered trademarks or registered service marks are the property of their respective owners. Juniper Networks reserves the right to change, modify, transfer or otherwise revise this publication without notice.
© 2009 Juniper Networks, Inc. All rights reserved.
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Juniper Networks, Inc. All rights reserved. Juniper Networks, the Juniper Networks logo, Junos, NetScreen and ScreenOS are registered trademarks of Juniper Networks, Inc. in the United States and other countries. JunosE is a trademark of Juniper Networks, Inc. All other trademarks, service marks, registered trademarks or registered service marks are the property of their respective owners. Juniper Networks reserves the right to change, modify, transfer or otherwise revise this publication without notice.
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