UCS Uplinks and vPC

[Robert Leers]

Hello,

I try to build virtual Portchannels on 2 Nexus 5548UP and 2 UCS 6248FI. With standalone links (without vPC) the communication between some ESX-Server and my Network is working. When I build vPCs on the N5k the vPC all portchannels (on N5K and FIs) are up.

The Portchannels are pinned to the vNICs and all looks fine. But there is no communication between my ESXs and my network. My configuration is like this:

[Manuel Velasco · Accepted solution]

Hi Roberts,

Are the VLANs allowed on the peer link? because if they work in standalone then that means trunk is fine but if they don't have them allowed on the peer link then it will stay up but wont talk

[Robert Leers]

Hello Manuel,

I think you're right. But I can't test it before monday. I will give you a feedback then.

[Manuel Velasco]

Hi Robert,

Were you able to verify if these vlans were allowed on the peer link?

[Robert Leers]

Hello Manuel,

the VLANs where not allowed. That was the problem. Now it works.

Thank you