Etherchannel with Vmware on VSS

CSCO11177789 · ‎11-04-2011

Hello;

In our environment we use 2 x 6509 with VSS configuration. On vmware machine we 've eight gigabit ethernets. So we connect each four ethernet to one chasis to create MEC.

According the design document on vmware side we connect 8 eth to one virtual switch and use ip hash algoritm for load balancing. For 6509 side we create portchannel and configure mode "on" . But when we run on this mode we couldnt reach server. So we changed the mode like "active". After this we successfully reach servers but when we look status of etherchannel and ports, we see ports are "up" but portchannel status is "down".

In fact we couldnt understand and try to find out why are we taking this status.

What do you suggest to solve this case ?

Thanks, Best regards

Umut

Derek Zhang · ‎11-04-2011

probably you also need to check whether vmware support LACP at your current version/nic type.

Reza Sharifi · ‎11-04-2011

Hi Umut,

So, you are saying, the connectivity is up and running i.e. servers can ping their default gateway and the switches can ping the servers, but the Etherchannel is down?

Reza

CSCO11177789 · ‎11-04-2011

Hi again;

Yes, all ports are up but portchannel is seems down. Is it possible ?

Reza Sharifi · ‎11-04-2011

If the portchannel goes down, there will be communication. Something else must be wrong.

CSCO11177789 · ‎11-05-2011

what do you suggest ?

Reza Sharifi · ‎11-05-2011

I suggest deleting and rebuilding the portchannel again. Follow the guide lines in this document. What ver of IOS are you running?

http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2SXF/native/configuration/guide/channel.html

HTH

CSCO11177789 · ‎11-05-2011

ok, i'll do it as soon as poccible and inform you about results

unfortunately i have no access to customer site now so i couldnt give the ios information.