23.1.2 MAC address learning move detection
- <Structure of this section>
(1) When MAC addressing is learned by VLAN
If a frame with a learned source MAC address and VLAN combination is received from a port other than the one that was learned, MAC address is considered to have moved, and the entry in MAC address table is re-registered (overwritten with the destination port).
(2) When learned by channel group
For MAC addresses learned in a channel group, if a frame is received from a port not included in the channel group, MAC address is assumed to have moved.