configuring trunk with Cisco Nexus 7000

OK. I might be missing something here. But you're saying you can't see the server farm... Well that's because the etherchannel interafce on the Cisco is DOWN (shutdown).

 

 

The discrepency you're seeing between the Viprion and the cisco with regards to the trunk coming up on the viprion is because you're not doing any signalling (LACP) on the trunk/etherchannel.

 

 

YOU MUST USE LACP SIGNALLING ON THE ETHERCHANNEL/TRUNK WHEN CONFIGURING A CHANNEL!!!!!

 

 

If you don't, it behaves like you're seeing, because the two ends aren't telling each other whether the channel is up/down because the up/down of the channel is only being detected by the link status (Which is up) on each of the individual connections.

 

 

I can't say it enough... USE LACP WHEN CONFIGURING CHANNELS!!!! Your problems may not go away 100% (i.e. you may have crossed cables etc), but you'll know when you do have a problem with something besides missing random packets. And the survising channel will at least work if there's at least one link up correctly.

 

 

H