Greetings,
I'm in need of a some advice on setting up a port-channel from a Cisco 3750x to an Avaya switch stack. So far, I've removed the port-channel from both trunk interfaces and left both links as just trunk. I've asked the Avaya engineer to do the same so we can troubleshoot any errors between us.
I've asked the data center to loop up the other side and both my links come up, when they removed the loop, both links went back down. However, the Avaya end shows up up for some reason, but my end shows down down (notconnect). This at first sounded like the they were connecting the wrong fiber drops but that's not the case here. I've since removed the port-channel from my trunk interfaces, removed cdp and spanning-tree. The fiber run is a straight run, no logical media convertors in between, according to the data center techs so I'm at a loss.
Is there any caveats to this setup that I'm missing or any related articles I can reference that someone can share to help troubleshoot?
Cisco 3750 Config:
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1102,2002,2902
switchport mode trunk
no cdp enable
spanning-tree bpdufilter enable
no channel-group 2 mode on (currently removed for troubleshooting reasons)
interface Port-channel2
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1102,2002,2902
switchport mode trunk
Thanks in advance,
Andrew
