FTOS Command Reference for the S-Series - Force10 Networks

preempt
preempt
c e s Permit a BACKUP router with a higher priority value to preempt or become the MASTER
router.
Syntax preempt
To prohibit preemption, enter no preempt.
Defaults Enabled (that is, a BACKUP router can preempt the MASTER router).
Command Modes VRRP
Command
History
priority
c e s Specify a VRRP priority value for the VRRP group. This value is used by the VRRP protocol
during the MASTER election process.
Syntax priority priority
Parameters
Defaults 100
Command Modes VRRP
Command
History
Usage
Information
Version 7.6.1.0 Introduced on S-Series
Version 7.5.1.0 Introduced on C-Series
pre-Version 6.2.1.1 Introduced on E-Series
To return to the default value, enter no priority.
priority Enter a number as the priority. Enter 255 only if the router’s virtual address is the
same as the interface’s primary IP address (that is, the router is the OWNER).
Range: 1 to 255.
Default: 100.
Version 7.6.1.0 Introduced on S-Series
Version 7.5.1.0 Introduced on C-Series
pre-Version 6.2.1.1 Introduced on E-Series
To guarantee that a VRRP group becomes MASTER, configure the VRRP group’s virtual
address with same IP address as the interface’s primary IP address and change the priority of
the VRRP group to 255.
If you set the priority to 255 and the virtual-address is not equal to the interface’s primary IP
address, an error message appears.
446 VRRP Commands