How to calculate Backplane Bandwidth/Throughput for 4506 switches

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Jan 3rd, 2010
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Could please some one light me how to calculate Backplane Bandwidth/Throughput for 4506 switches, in data sheet I am

not able to get it.

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Giuseppe Larosa Mon, 01/04/2010 - 03:34
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Hello ncp,


classic linecards can connect at 6 Gbps per direction to the backplane

linecards with final E at 24 Gbps per direction


the supervisor has its own capability.

the backplane overall figures are counted twice: they sum tx and rx rates this is done by all vendors.


here is a link for supervisor comparison


http://www.cisco.com/en/US/products/hw/switches/ps4324/prod_models_comparison.html


to be noted if you have the normal linecards they are limited to 6 Gbps per direction whatever supervisor is in use.


So there are linecards with 48 GE ports and a ratio 8:1 that make them not good for server farms


show platform health

has a section where it shows current BW usage per slot


Hope to help

Giuseppe

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