How to solve NX7009 vPC member port in suspend mode?

[gwhuang5398]

I'm deploying a pair of new NX7009 (Sup2, F2 series 48-port 10G modules) and bunch of NX5548 (with expansion module). Connectivity between pair of NX7009 and pair of NX5548 is straight forward: 4 meshed 10G connections in between in vPC. vPC domains and all vPC port-channels are fine except one vPC port-channel between NX7009 pair and one NX5548 pair. One of the NX7009 port in the bundle is put in suspend mode every time it's enabled. The port is configured the same as any other bundled NX7009 ports and the NX5548 port on the other side of the port-channel is also configured the same as any other vPC ports.

Ports can be suspended if incompatibility exists in a port-channel. But in this case, I couldn't find any incompability about this particular NX7009 port.

Any advices? Thanks a lot                  

[Jayakrishna Mada]

Hi,

So is the setup double sided vPC ? or is the vPC is only on Nexus 7009 pair.

Anyways what does logs on N7009 and N5548 say.

Can you paste the output of show vpc x.

Thanks

JayaKrishna

[gwhuang5398]

Thanks for the reply. vPC is double sided. The ports that were suspended was not physically cabled on one side. After physical connectivity came up, the ports were fine from that point on.

So it was not caused by any LACP misconfiguration. That's good to learn.

Thanks again.