Hi - We have an HP server with an A/A teaming configuration that serves up DHCP. The two interfaces are connected to a 4506 with port channel assignments, but I see that they left the channel-group mode as "desirable" on both interfaces, instead of "on", and so the Etherchannel does not come up. Can anyone tell me how this really affects switch traffic, because general network perfomance is mediocre. If two separate MAC's are responding for one IP address, I would think it would be bad. - Thnx Dave
Thanks Giuseppe. Unfortunately we standardize on Etherchannel configurations, so what I really want to know is what the effect will be if the the port channel is not up, when the teaming configuration is active/active. I am remote and not able to capture any information, but I think this misconfiguration is causing traffic problems as it is. - Dave
we reviewed the policy on how to configure etherchannels in our server farms.
First attempts to use LACP were not successful but now we are getting good results.
if the port channel is not configured on the switch side or it is waiting for a successful PAGP negotiation (that is Cisco proprietary this is the key point here) to complete you will get a lot of errors like
host with MAC x flapping between ports Y and Z
or you configure the ports to be bundle without negotiation with on mode or you move to LACP
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
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