On 09/08/10 08:47, Rin wrote:
Hi group,
We are building a Core network of 3 7609 routers connecting as a 40Gbps
ring. On each router we have 4 WS6704 linecards. Each router will be
connected to other routers via 4 10G-links, these links will be configured
as Port-Channel.
Should we place each link of the port-channel on different linecard on each
router or should we allocate all 4 links on the same linecard? Anyone has
any problem with configuring etherchannel for ports on different WS6704
linecards?
We do that extensively. It works fine. It is better to have
cross-linecard portchannels in general.
HOWEVER - there are a couple of caveats to be aware of. One is if you've
got different linecards with different QoS queuing, you will need:
int PoX
no mls qos channel-consistency
Second is that there are some issues with cross-linecard portchannels if
you have service modules (ACE, FWSM, WiSM) in the chassis. I can't
remember the details or find the link at the moment.
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