Catalyst 6509: Bad traffic distribution on LACP etherchannel

[luis.gomez-bastarreche]

Working with 2 Catalyst 6509 conected via a LACP with 4 ports 1G obtain a very imbalanced traffic distribution. The etherchannel is working with default configuration.

The traffic flow is from clients to servers and the clients begin the connection.

[glen.grant]

Try one of the other methods . It really hit and miss as far as trying to get them "more" evenly balanced.

[luis.gomez-bastarreche]

Hi Glen,

Thanks for your input.

Wich are the other methods?. We are thinking about modify the load-balancing keywords(src IP, src Mac....).

In every etherchannel 4G we are using only perhaps 1,5M and some times have overrun frames on the interfaces

Thanks again

Luis

[glen.grant · Accepted solution]

Yes you are on the right track just try the others until you find a good balance , it will never be totally equal across all links. Think about how traffic is flowing , is all the traffic going to a single destination tc... then you probably don't want to use destination ip as the criteria. The settings may not even be the same on each end the link .

[luis.gomez-bastarreche]

Thanks again for your help

Luis