I am looking at an issue with a cross stack etherchannel running LACP. Member port g1/0/1 of the bundle is changing state frequently without any known cause.
The two stacks are made of 1x Cisco 3750 12S and 1x Cisco 3750 E 24.
G1/0/1 on the 12S connects to G1/0/1 on the other 12S SFP.
G2/0/1 on the E connects to G 2/0/1 on the other E using copper.
Interface G1/0/1 is flapping. Bundle is active and passing traffic.
Anyone seen this combination?