7600 10/100/1000 modules

Unanswered Question
Feb 15th, 2007

Dear sir,

i found 7600 module with

WS-X6516-GE-TX, Catalyst 6500 16-port 10/100/1000 GE Module, Cross-Bar

so what cross bar mean?

and what is the difference between this Module and the following module:

WS-X6748-GE-TX, Cat6500 48-port 10/100/1000 GE Mod: fabric enabled, RJ-45

I have this problem too.
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mihanlin Thu, 02/15/2007 - 04:59

Crossbar fabric is a marketing term Cisco uses to describe one of the backplanes on a 6500/7600.

It basically means that each linecard is connected through to eachother via the crossbar. On a Sup720 the crossbar is integrated into the Supervisor. On older Sup2 it's a dedicated card that is placed into the middle slot(s) of the chassis. There are actually two channels per slot which go to the crossbar, with speeds up to 720Gbps per slot.

The main architectural differences between the card is that the X6748 has dual fabric channels to the crossbar and the 6516 has only one. This obviously results in less throughput to other linecards.

Hope this helps


Cisco TAC - LAN Switching


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