23.3.2 Checking MAC address learning status

The show mac-address-table command displays information about MAC address learning. Use it to check the MAC addresses registered in the MAC address table, as well as to check the forwarding destination for frames with the MAC address used as the destination. Any frames with a destination other than the MAC addresses displayed by this command are flooded to the entire VLAN.

The show mac-address-table command displays the entries registered by MAC address learning, static entries, and IEEE 802.1X, and entries registered by IGMP snooping and MLD snooping.

Figure 23-2: Result of executing show mac-address-table command
> show mac-address-table Date 20XX/10/14 12:08:41 UTC MAC address VLAN Type Port-list 0012.e22d.eefa 1 Dynamic 1/0/2 0012.e212.2e5f 1 Dynamic 1/0/5 0012.e205.0641 4094 Dynamic 1/0/24 0012.e28e.0602 4094 Dynamic 1/0/24 >

Figure 23-2: Result of executing show mac-address-table command

> show mac-address-table
Date 20XX/10/14 12:08:41 UTC
MAC address        VLAN    Type     Port-list
0012.e22d.eefa        1    Dynamic  1/0/2
0012.e212.2e5f        1    Dynamic  1/0/5
0012.e205.0641     4094    Dynamic  1/0/24
0012.e28e.0602     4094    Dynamic  1/0/24
>