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LACP Etherchannel

Unanswered Question


We have a customer that is running an LACP etherchannel consisting of 8 interfaces between two servers, these servers back up to one another, what we find is that optimal use is not made of the eight links when the backup runs.

Does anyone have any ideas as to how I can distribute the load a little more evenly across the eight channels.

I have played around with the port-channel balance command but have not seen any significant improvements


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ankurbhasin Thu, 11/03/2005 - 02:40
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Hi Antonio,

The etherchannel works as per its algorithm and depending upon the mac address last bit learned on any ports it load balanced which is not always equal.

Can you play with frame distribution on the basis of mac address or ip address.

Check this link for more details




glen.grant Thu, 11/03/2005 - 05:05
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Your best bet would be to load balance on the outgoing ip address I would think , seeing that the traffic is only going to 2 servers . Also I would think you would have to look at the servers and see if there etherchannel load balance parameters on that end , it's a 2 way street so to speak.


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