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PowerConnect B-Series FCX Configuration Guide 1121
53-1002266-01
Forcing a Master router to abdicate to a standby router
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To set the VRRP-E slow start timer to 30 seconds, enter the following commands.
PowerConnect(config)#router vrrp-e
PowerConnect(config-vrrpe-router)#slow-start 30
Syntax: [no] slow-start <seconds>
For <seconds>, enter a value from 1 – 255.
When the VRRP-E slow start timer is enabled, if the Master goes down, the Backup takes over
immediately. If the Master subsequently comes back up again, the amount of time specified by the
VRRP-E slow start timer elapses (in this example, 30 seconds) before the Master takes over from
the Backup.
The VRRP-E slow start timer is effective only if another VRRP-E Master (Standby) is detected. It is
not effective during the initial boot up.
NOTE
The VRRP-E slow start timer applies only to VRRP-E configurations. It does not apply to VRRP
configurations.
Forcing a Master router to abdicate to a standby router
You can force a VRRP Master to abdicate (give away control) of a VRID to a Backup by temporarily
changing the Master priority to a value less than the Backup.
The VRRP Owner always has priority 255. You can even use this feature to temporarily change the
Owner priority to a value from 1 – 254.
NOTE
When you change a VRRP Owner priority, the change takes effect only for the current power cycle.
The change is not saved to the startup-config file when you save the configuration and is not retained
across a reload or reboot. Following a reload or reboot, the VRRP Owner again has priority 255.
To temporarily change the Master priority, use the following CLI method.
To change the Master priority, enter commands such as the following.
PowerConnect(config)#ip int eth 1/6
PowerConnect(config-if-1/6)#ip vrrp vrid 1
PowerConnect(config-if-1/6-vrid-1)#owner priority 99
Syntax: [no] owner priority | track-priority <num>
The <num> parameter specifies the new priority and can be a number from 1 – 254.
When you press Enter, the software changes the priority of the Master to the specified priority. If
the new priority is lower than at least one Backup priority for the same VRID, the Backup takes over
and becomes the new Master until the next software reload or system reset.
To verify the change, enter the following command from any level of the CLI.
PowerConnect#show ip vrrp
Total number of VRRP routers defined: 1
Interface ethernet 1/6
auth-type no authentication
VRID 1
state backup
administrative-status enabled