02-08-2012 08:48 AM - edited 03-07-2019 04:48 AM
I have created 5 new 2 Gig port channels on a 6513 WS-X6516A-GBIC blade
connecting to 5 4510R+E switches. 3 of the 5 Port-channels show up/up. 2 show down/down. However, for the 2 showing down, a duplicate Po interface was created with an "A" appended to the name that shows up/up.
eg:
Port-channel26 unassigned YES unset down down
Port-channel26A unassigned YES unset up up
Can someone explain what this is any why it is occurring?
Each of the 4510s has a second 2Gig PO to another 6513 with an identical config and all of those come up fine.
Thanks for any feedback!
02-08-2012 08:51 AM
That usually means the config on both sides do not match . I would delete the current ones. Make new ones with all ports down and match the configs exactly on both sides then bring them up by doing a no shut on the port channel SVI . Otherwise maybe you can post the port and SVI setups from both sides of the channel and maybe we can spot something .
04-10-2013 08:13 AM
Hello everyone,
Same issue on my side.
However it is not due to configuration difference but to a migration: we had Ge interfaces and moved to 10Ge ones.
At some point, the 2 types were bundled and it created a Po10 (with the GE) and Po10A (with the 10GE). As we took the Ge out, we now have a Down Po10 and a running Po10A.
Any idea of how to remove the "A" in service?
Best regards, Jeremie
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