23.1.2 MAC address learning move detection

Monitors the movement of MAC address learning and counts the number of moves of MAC address. The number of moves of MAC addresslearning is counted at the destination port. The condition for detecting the movement depends on the condition that learned MAC address.

<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 MAC addressing is learned in VNI [SL-L3A]

(a) VXLAN Access

When VNI mapping method is VLAN mapping: MAC address table will be re-registered (override for the destination port) if a frame with a learned source MAC address and VNI combination is received from a different VXLAN Access port or VXLAN Network port as if that address had been moved.
When VNI mapping method is sub-interface mapping: MAC address table entry is re-registered (overriding the destination port) as if VNI address moved when the learned source MAC address and VLAN frame were received from a different VXLAN Access port and VLAN combination or from a VXLAN Network port.

(b) VXLAN Network

MAC address table entry is re-registered (overridden for the destination port) assuming that VNI address was moved when a frame with a learned source MAC address combined with a learned frame was received from a different VXLAN tunnel or VXLAN Access port.

(3) 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.