The Supervisor 720 contains a 720 gigabit per second crossbar switching fabric that providing for multiple conflict-free (or non blocking) paths between switching modules. At the back of the module you can actually see the chip that is the switching fabric:
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Using the 'supa klever' form of marketing math, a switching fabric is actually 360 GB/s but because it goes in at 360Gb/s and out at 360Gb/s and therefore you could count it twice. So that is seven hundred and twenty gigabits. That's the number.
In fact, the switching fabric is eighteen inputs of 20Gb/s per input. Of these, the backplane in your Catalyst 6500 will decide how many are presented to your line cards. The C6503, C6506 and C6509 will present dual fabric connections while the C6513 is dependent on slot.
Sep 30, 2011 In this sponsored show, Cisco Technical Marketing Engineers Patrick Warichet and Scott Hodgdon join Greg Ferro and Ethan Banks to chat about the recently announced Cisco Catalyst 6500 Supervisor 2T in a deep dive discussion. We mine the depths of the new sup's architecture and get the feeling that, 'there's life in the old dog yet!'. 12.2(18)SXF 12.2(14)SX 12.2(33)SXH 15.0(1)SY WS-6506-E Specification Number of Slots 6 Supervisor Compatibility Cisco Catalyst 6500 Series Supervisor Engine 32.
The Cisco® Catalyst® 6500 Enhanced Series Chassis will be capable of delivering up to 180 Gbps of per-slot bandwidth with a system capacity of up to 4 terabits per second. A system configured for VSS will be capable of delivering up to 8 Tbps of system bandwidth. Catalyst 6500 Series can support up to two supervisor engines (slots 1 and 2 for the Supervisor Engine 1A and Supervisor Engine 2; and slots 1 and 2 in the Cisco Catalyst 6503 and 6504 chassis, slots 5 and 6 in the Cisco Catalyst 6506 and 6509 chassis, and slot 7 and 8 in the.
Per Slot bandwidth
Each slot in the backplane of the C6509-E chassis has two 20Gb/s backplane connections. There are nine slots. Nine slots at 40Gb/s is 360GB/s.
and the Switch Fabric connections look like this:
Catalyst 6513
Note that backplane slots on a 6513 do not support dual 20Gb/s on all slots. Because the switching fabric on the Supervisor has eighteen 20Gb/s inputs, you must layout the inputs differently.
Therefore the slots at the top of 6513 are only 20GB/s and not 40Gb/s. This is what makes the C6513 signficantly different from the C6509 chassis. The 6513 was a popular choice when low performance line cards were used, but today, high density gigabit ethernet is common and much increased bandwidth of servers and desktops †means the C6513 is not commonly used, especially for data centres.
The Switch Fabric connections look like this:
Not All Modules are created equal
Consider the following modules that are commonly used today (2009):
? WS-X6724-SFP: a 24 port Gigabit Ethernet SFP based line card supporting a single 20 Gbps fabric channel to the Supervisor Engine 720 crossbar switch fabric. Also supports an optional Distributed Forwarding Card 3a (DFC3a, DFC3B or DFC3BXL)
? WS-X6748-SFP: a 48 port 1000Mb SFP based line card supporting 2 x 20-Gbps fabric channels to the Supervisor Engine 720 crossbar switch fabric. Also supports an optional Distributed Forwarding Card 3 (DFC3a, DFC3B or DFC3BXL)
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? WS-X6704-10GE: a 4 port 10 Gigabit Ethernet Xenpak based line card supporting 2 x 20 Gbps fabric channels to the Supervisor Engine 720 crossbar switch fabric. Also supports an optional Distributed Forwarding Card 3a (DFC3a, DFC3B or DFC3BXL)
? WS-X6708-10GE: an 8 port 10 Gigabit Ethernet X2 optic based line card supporting 2 x 20 Gbps fabric channels to the Supervisor Engine 720 crossbar switch fabric with integrated Distributed Forwarding Card 3CXL.Not this card has 80 Gb/s of input (in one direction, 160 Gb/s in two directions) and could easily oversubscribe the backplane connection and switch fabric connection on those inputs.
An oversubscribed card means that packets may be delayed or dropped under heavy loads.
Cross Bar Connector on the module
You can easily tell if the blade has some form of connection to the Cross Bar fabric by looking at the connectors on the back of the cards. If the Cross Bar Connector is present, then the module has some form of the connection to the fabric.
Shared Bus Connector
There is also a Shared Bus on the C6500 that operates at 32Gb/s (yes, 16Gb/s in both directions).
This is what was used in the early days of the chassis with the first generation C61xx and C63xx modules which could easily oversubscribe the backplane connection. Most new installation are completely fabric switched (excepting for IP Telephony installations who use the oversubscribed model and like the QoS features of the C6500 and the high power density of up to 8500W in a single chassis).
Not Comprehensive
This post is not a comprehensive look at the modules and supervisor architecture. This is covered a number of documents but check the White paper link just below this which has a lot more information and is a complete reference to the architecture of the C6500.
The reason for this article is to outline some of the issues that a Data Centre designer needs to understand. The architecture of the switch, and same logic applies to storage switches, can impact the design of the network. The decision on whether to purchase a WS-X6704-10GE or WS-X6708-10GE can be impacted by the predicted traffic load.
Each slot in the backplane of the C6509-E chassis has two 20Gb/s backplane connections. There are nine slots. Nine slots at 40Gb/s is 360GB/s.
and the Switch Fabric connections look like this:
Catalyst 6513
Note that backplane slots on a 6513 do not support dual 20Gb/s on all slots. Because the switching fabric on the Supervisor has eighteen 20Gb/s inputs, you must layout the inputs differently.
Therefore the slots at the top of 6513 are only 20GB/s and not 40Gb/s. This is what makes the C6513 signficantly different from the C6509 chassis. The 6513 was a popular choice when low performance line cards were used, but today, high density gigabit ethernet is common and much increased bandwidth of servers and desktops †means the C6513 is not commonly used, especially for data centres.
The Switch Fabric connections look like this:
Not All Modules are created equal
Consider the following modules that are commonly used today (2009):
? WS-X6724-SFP: a 24 port Gigabit Ethernet SFP based line card supporting a single 20 Gbps fabric channel to the Supervisor Engine 720 crossbar switch fabric. Also supports an optional Distributed Forwarding Card 3a (DFC3a, DFC3B or DFC3BXL)
? WS-X6748-SFP: a 48 port 1000Mb SFP based line card supporting 2 x 20-Gbps fabric channels to the Supervisor Engine 720 crossbar switch fabric. Also supports an optional Distributed Forwarding Card 3 (DFC3a, DFC3B or DFC3BXL)
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? WS-X6704-10GE: a 4 port 10 Gigabit Ethernet Xenpak based line card supporting 2 x 20 Gbps fabric channels to the Supervisor Engine 720 crossbar switch fabric. Also supports an optional Distributed Forwarding Card 3a (DFC3a, DFC3B or DFC3BXL)
? WS-X6708-10GE: an 8 port 10 Gigabit Ethernet X2 optic based line card supporting 2 x 20 Gbps fabric channels to the Supervisor Engine 720 crossbar switch fabric with integrated Distributed Forwarding Card 3CXL.Not this card has 80 Gb/s of input (in one direction, 160 Gb/s in two directions) and could easily oversubscribe the backplane connection and switch fabric connection on those inputs.
An oversubscribed card means that packets may be delayed or dropped under heavy loads.
Cross Bar Connector on the module
You can easily tell if the blade has some form of connection to the Cross Bar fabric by looking at the connectors on the back of the cards. If the Cross Bar Connector is present, then the module has some form of the connection to the fabric.
Shared Bus Connector
There is also a Shared Bus on the C6500 that operates at 32Gb/s (yes, 16Gb/s in both directions).
This is what was used in the early days of the chassis with the first generation C61xx and C63xx modules which could easily oversubscribe the backplane connection. Most new installation are completely fabric switched (excepting for IP Telephony installations who use the oversubscribed model and like the QoS features of the C6500 and the high power density of up to 8500W in a single chassis).
Not Comprehensive
This post is not a comprehensive look at the modules and supervisor architecture. This is covered a number of documents but check the White paper link just below this which has a lot more information and is a complete reference to the architecture of the C6500.
The reason for this article is to outline some of the issues that a Data Centre designer needs to understand. The architecture of the switch, and same logic applies to storage switches, can impact the design of the network. The decision on whether to purchase a WS-X6704-10GE or WS-X6708-10GE can be impacted by the predicted traffic load.
There are other factors that might affect a design, such as the Multicast performance or the QoS features, but this article points out some of the first factors for thinking about whether C6500 is the right switch. I hope you realise that knowing something about the guts of your switch, and how the insides look, is important to getting your network right. Foire aux vins geant casino.
Reference
1) Some images and concepts are drawn from the CISCO CATALYST 6500 SWITCH ARCHITECTURE SESSION RST-4501 from Cisco Networkers in 2004.
2) Cisco Catalyst 6500 Architecture White Paper https://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps708/prod_white_paper0900aecd80673385.html
Cisco Catalyst 6500 Series is always popular in various organizations. The Catalyst 6500 switches have been quite popular with Cisco's customers. They have been deployed by more than 47,000 organizations since they were introduced in 1999. Till now Cisco announced their several End-of-Life (EOL) plans for the 6500-series switches. More Cisco 6500 chassis, modules, supervisor engines and cards have been announced end of sale and end of life. Which one is counted in your list? So, take a look at the main Cisco 6500 models that have been announced end of sale.
Cisco Catalyst 6509 Switch
The 9-slot Cisco Catalyst 6509 offers scalable port densities, ideal for many wiring-closet, core and data-center deployments. When equipped with a single Catalyst 6500 Series supervisor engine, eight payload slots are available to support a wide range of interface or services modules. Redundant supervisor engine configurations using fast 13 second failover are also supported for maximum network uptime.
The Catalyst 6509 offers a range of power supply options, including redundant power supplies ranging from 1000W AC or DC to 4000W AC. The Catalyst 6509 also features field upgradable fan trays for easy service.
Cisco Catalyst 6509-NEB Switch
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The 9-slot vertical chassis of the Cisco Catalyst 6509-NEBS has back-to-front airflow and is ideally suited for service provider environments or for those enterprise customer environments in which front-to-back airflow is preferred. Additionally, the Catalyst 6509-NEB is designed for Network Equipment Building Systems (NEBS) Level 3 compliance, as are all other Catalyst 6500 Series chassis. The Catalyst 6509-NEB also features field upgradable fan trays for easy service.
Cisco Catalyst 6506 Switch
Ideal for many wiring-closet and core-network deployments, the 6-slot Cisco Catalyst 6506 provides intermediate port densities and supports a range of power supply options, including redundant power supplies ranging from 1000W AC or DC to 2500W AC or DC. When equipped with a single Catalyst 6500 Series supervisor engine, five payload slots are available to support a wide range of interface or services modules. Redundant supervisor engine configurations using fast 13 second failover are also supported for maximum network uptime. The Catalyst 6506 also features field upgradable fan trays for easy service. Casino in monaco pics.
Cisco Catalyst 6503 Switch
The 3-slot Cisco Catalyst 6503 chassis offers a compact 4-rack-unit height that is ideally suited for multi-Gbps secure data centers, remote access, e-commerce, and converged network solutions. The Catalyst 6503 chassis is also well-suited for small wiring closets supporting up to ninety-six 10/100/1000 Ethernet ports, is compatible with all Catalyst 6500 supervisor engines, and can be configured with redundant power supplies.
Cisco Catalyst 6500 Borderless Services Node
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The Cisco Catalyst 6500 Borderless Services Node integrates the Cisco Catalyst 6500 Series/7600 Series Wireless Services Module (WiSM) and the Cisco Catalyst 6500 Series Firewall Services Module with the Cisco Catalyst 6500 Virtual Switching Supervisor Engine 720. It is highly secure and mobile, enables system virtualization, and provides increased throughput with scalable performance.
Key features of the Cisco Catalyst 6500 Borderless Services Node are:
- Dual Firewall Services Module for increased security and application performance
- Wireless Services Module to enable mobility through up to 300 access points and 10,000 clients
- Supervisor 720 with 10 Gb Ethernet uplinks and IPv6, which combines high-density uplinks, system virtualization, and increased throughput with scalable performance and a broad IP feature set
- Cisco Catalyst 6509-E Chassis with high port density and side-to-side airflow
- The node has a 16-port 10G module option or 24-port Small Form-Factor Pluggable (SFP) module
- Workflow automation through CiscoWorks LAN Management Solution 3.2 and earlier templates
- Cisco EnergyWise to reduce energy consumption and operating costs throughout the corporate infrastructure
More information about Cisco 6500e Series you can visit https://www.router-switch.com/Price-cisco-switches-cisco-switch-catalyst-6500_c18
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