[c-nsp] 7600 router and Etherchannel across multiple line card

[Peter Rathlev]

On Mon, 2009-06-08 at 02:09 +0300, Ibrahim Abo Zaid wrote:
> I am trying to establish L2 Etherchannel between 2 7609 routers ,
> SUP720-MSFC3 , PFC is 3BXL and Line cards WS-X6148-GE and IOS is *
> 12.2(33)SRD*
> 
> are there any concerns to establish this etherchannel between ports in
> different line cards ?

Etherchannels are a little pointless on the WS-X6148-GE card and
similiar. They have 1GB/s ASICs, so you'll never exceed 1GB/s anyhow.
And the ASIC to physical port ratio also limits you.

But generally speaking, cross module etherchannels are a good idea and
AFAIK is recommended from Cisco for high availability.

Regards,
Peter