23.1.4 MAC addressing for the channel group

A protocol such as the Spanning Tree Protocol requires the MAC address of a channel group. For the Switch, the MAC address of any of the ports in the channel group is used.

If the port whose MAC address is used is removed from the channel group, the MAC address of the channel group is changed.

During an operation with a stack configured, if the Ethernet interface of the port using the MAC address is deleted along with the deletion of a member switch, the MAC address of the channel group is changed. Also, when the MAC address of the port of the master switch is used for the MAC address of the channel group, if the backup switch becomes a new master switch due to a failure in the current master switch, the MAC address of the channel group is also changed.