[nsp] Fabric-Enabled

[Deepak Jain]

>>Catalyst 6500 48-port 10/100/1000 GE Mod., RJ-45  WS-X6148-GE-TX=
>>Catalyst 6500 48-port fabric-enabled 10/100/1000 Module  WS-X6548-GE-TX=
>>Catalyst 6500 48-port 10/100/1000 GE Mod: fabric enabled, RJ-45
>>WS-X6748-GE-TX=
> 
> 
> A module with 48 1000 Mbps ports using the standard 65xx bus is too much
> oversubscribed, unless no ports are using 1000 Mbps. I don't recall what
> changes from 6548 to 6748, but I would guess that one has one fabric
> connection and the other has two fabric connections. The second would
> require two fabrics on the chassis to achieve full speed.

The 6748 supports 40Gb/s and 9000 byte Jumbo frames. dCEF and possibly 
aCEF are upgrade options. dCEF-3 requires the Sup 720, but provides 
hardware acceleration of IPV6.

http://www.cisco.com/en/US/products/hw/switches/ps708/prod_bulletin09186a00801d470a.html

I think the 6548 might just support standard forwarding.

DJ