Question

A storage engineer is connecting two Cisco MDS/Nexus FC switches with two 32G Fibre Channel links bundled into a port channel. The port channel must carry traffic for VSAN 10 and VSAN 20 across the ISL. After configuration, VSAN 20 traffic is not passing, though VSAN 10 works. The engineer confirms both member ports are up and the port channel is operational. What is the MOST likely cause?

Accepted Answer

The trunk allowed VSAN list on the port channel does not include VSAN 20

Answer

The port channel is configured in mode active rather than mode on

Answer

The two member ports operate at different speeds, preventing VSAN 20 forwarding

Answer

Zoning for VSAN 20 has not been distributed via CFS to the peer switch