Install guide

Software Version 2.7.5 75
Software Version 2.7.5
C613-10454-00 REV A
VRRP Preemption Delay
Preemption delay support is an enhancement to the Virtual Router
Redundancy Protocol (VRRP) that lets you specify a time delay between one
router or switch assuming control from another one.
The effect of this enhancement is that it is now possible to specify a delay
between the time the higher-priority device becomes available, and the time it
assumes mastership.
VRRP specifies the method of how a backup assumes control when the master
fails. Each router or switch is assigned a priority within the redundancy group.
The preferred master is the router or switch that owns the virtual router
address and has the highest priority.
When a master becomes unavailable, the backup routers or switches
participate in an election process. The device with the highest priority becomes
the new master.
If the preemption feature is enabled, then whenever a device within the group
with a higher priority than the current master becomes available, it
automatically assumes the master role. If preemption is disabled, only the
preferred master takes control from the current master when it is available.
Command Changes
The following table summarises the modified commands (see Command
Reference Updates).
Command Change
create vrrp new delay parameter
set vrrp new delay parameter
show vrrp new Preempt Mode Delay (seconds) field