Etherchannel issue - Port falsely shows broadcast suppression

[gibsowe55]

Hello - I am trying to join two interfaces to etherchannel (LACP.)  The 2nd interface joined the channel fine, but the 1st interface keep suspending and giving the following log error:

%EC-5-CANNOT_BUNDLE2: Gi1/0/51 is not compatible with Gi1/0/52 and will be suspended (Broadcast suppression: Level of Gi1/0/51 is 50.00%, 50.00%. Level of Gi1/0/52 is not configured.)

At one point this interface had broadcast suppression configured, but it no longer does.. I tried shutting/un-shutting the interface, removing/adding back to etherchannel, even reset the port to default, but nothing works.  Any other ideas to remove the hidden broadcast suppression so it can join the etherchannel?

[Reza Sharifi · Accepted solution]

Maybe rebooting the switch will fix it.

HTH

[gibsowe55]

Ok, that may be the only option.  I'll give that a shot.  Thanks.

[Reza Sharifi]

Yes, sometimes the commands get stuck in the IOS and nothing can remove it but a reboot. If you want, you may want to open a ticket with TAC, so they are aware of it. Also, this may be a bug in the OS you are running especially if you are running an older version.

HTH

[gibsowe55]

Rebooting the switch fixed it. I will look into a software upgrade and hopefully this will resolve the bug. Thanks for your help.

[Reza Sharifi]

Glad to help.

Good luck!