09-12-2016 11:59 AM
On Brocade VDX 6740 I got an error "Interface port-channel 2 is link down" as one of the interfaces in the port-channel went down. Does the error mean that port-channel as a whole is down or just one of the link/interface is down?
If it means port-channel is down, why would a port-channel go down if only one of link is down when other links/interfaces are still up?
Solved! Go to Solution.
09-14-2016 06:00 AM
If you have two or more VDX switches forming a port channel this then becomes a vLAG
If you are looking at the log of an individual VDX switch when an interface goes down which is a member of a vLAG and this is the only member interafce on that switch then you will see message to say that the physical interface and the port-channel interface are down. This only means that the local interface and member of the port channel is down. This does not mean that the whole port-channel (vLAG) is down
If you look at the log of the other switch you should also see a message something like the following:
RBridge ID xx has left Port-channel xx. Port-channel has only RBridge ID xx and is no longer a vLAG.
Hope this helps