Juniper SERVICE AVAILABILITY - CONFIGURATION GUIDE V 11.1.X Configuration Manual page 138

JUNOSe 11.1.x Service Availability Configuration Guide
ip vrrp enable
ip vrrp preempt
ip vrrp priority
ip vrrp virtual-address
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Configuring VRRP
Use the no version to set the authentication type to its default, none.
See ip vrrp authentication-type.
Use to enable an existing VRID instance.
Specify a VRID in the range 1–255.
The default is that VRRP is disabled.
Example
host1(config-if)#ip vrrp 175 enable
Use the no version to disable an existing VRID instance.
See ip vrrp enable.
Use to enable preemption. When preemption is enabled, a backup router always
takes over the responsibility of the master router. When preemption is disabled,
the lower-priority backup router is left in the backup state.
Example
host1(config-if)#ip vrrp 10 preempt
The default is that VRRP preemption is enabled.
Use the no version to disable preemption.
See ip vrrp preempt.
Use to configure the priority of VRRP routers.
Use a value of 255 to imply master router priority.
Use a value in the range 1–254 to imply backup router priority.
Example
host1(config-if)#ip vrrp 25 priority 255
Use the no version to set the priority to the default value, 100.
See ip vrrp priority.
Use to associate an IP address with a VRID.
Use the auto keyword to automatically learn or configure associated addresses,
depending on the priority attribute.
There is no default.
Example