Having a strange issue here.. I replaced a stack member (2 members in a stack of Cisco 3750x). Both switches have a 10Gb card and I had a perfectly working LAG/etherchannel between to 10Gb ports.
After replacing a stack member the portchannel can't bundle due to flow-control mismatch. It says that flow-control is of on the interface of the new member but in the config it is clearly on, consistent with the config on the other interface and the portchannel.
%EC-5-CANNOT_BUNDLE2: Te1/1/2 is not compatible with Te2/1/2 and will be suspended (flow control receive of Te1/1/2 is off, Te2/1/2 is on) (ISCSI-MER2-1)
interface TenGigabitEthernet1/1/2 flowcontrol receive on channel-protocol lacp channel-group 1 mode active end interface TenGigabitEthernet2/1/2 flowcontrol receive on channel-protocol lacp channel-group 1 mode active end interface Port-channel1 flowcontrol receive on end
I want to try to add another port to the channel but not sure if this causes disruption on the portchannel?
I could also try to disable flow control on the interfaces and on the port channel, but I need to now if this can be done during production?