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

[Paul Stewart]

Apologies for bumping the post....

My notes show the following:

WS-X6148A-GE-TX 
*Number of ports: 48 
Number of port groups: 6 
Port ranges per port group: 1-8, 9-16, 17-24, 25-32, 33-40, 41-48 *The 
aggregate bandwidth of each port group is 1 Gbps. 

WS-X6148-GE-TX 
*Number of ports: 48 
Number of port groups: 2 
Port ranges per port group: 1-24, 25-48 
Note WS-X6148-GE-TX, WS-X6148V-GE-TX, and WS-X6148-GE-45AF do not 
support these features: 
*More than 1 Gbps of traffic per EtherChannel

Sorry, I was thinking 6148A and the OP has specified the non-A version hence
the confusion on my part...

Thanks,

Paul


-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Peter Rathlev
Sent: June 7, 2009 8:01 PM
To: Ibrahim Abo Zaid
Cc: cisco_nsp
Subject: Re: [c-nsp] 7600 router and Etherchannel across multiple line card

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


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