Layer 2
-
That the MAC addresses are learned, in the correct
VLAN, and are not blackhole entries.
- To display FDB entries, use the show fdb command.
-
Your VLAN configuration, including the VLAN tag, ports
in the VLAN, and whether or not the ports are tagged.
-
Your STP configuration,
including the STP domain (STPD) number, VLAN assignment, and port
state.