13.3.1 GSRP status

GSRP switches have five operation states. The following table describes the states.

Table 13-4 GSRP state list
Status	Description
Backup	The switch is operating in the backup state. The backup GSRP switch blocks frames on each port on a VLAN in a VLAN group. Because the backup GSRP switch only relays GSRP control frames, it does not learn MAC addresses. Every GSRP switch starts in the backup state when it is initially started.
Backup (wait for master)	A transient state for a switch that is waiting to enter the master state from the backup state until it has confirmed that the neighbor GSRP switch is definitely in the backup state or backup (locked) state. When a switch is in the backup (wait for master) state, as in the backup state, it only relays GSRP control frames.
Backup (neighbor unknown)	A switch in the backup state or backup (wait for master) state enters this state when it detects a timeout for receiving GSRP Advertise frames from the neighbor GSRP switch. Because the neighbor GSRP switch might be operating in the master state, the backup switch remains in this backup state unless it receives a GSRP Advertise frame again or the user uses the set gsrp master operation command to place the backup switch in the master state. As in the backup state, the switch in the backup (neighbor unknown) state only relays GSRP control frames.
Backup (locked)	The backup switch is forcibly set in the backup state by a configuration command. The backup switch remains in this state unless the configuration is deleted. The switch remains in the backup (locked) state until the switch configuration is deleted. In the backup (locked) state, as in the backup state, the switch only relays GSRP control frames.
Master	The switch is operating in the master state. The master GSRP switch forwards frames on each port on a VLAN in a VLAN group. The master GSRP switch relays all frames, including GSRP control frames, and learns MAC addresses.