R0106-HP MSR Router Series High Availability Command Reference(V7)

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range of 10 to 100, 101 to 200, and 4001 to 4095, the actual values are 100, 200, and 4100,
respectively. For VRRPv3, the value of the adver-interval argument that you configured takes effect.
Usage guidelines
The master in an IPv4 VRRP group periodically sends VRRP advertisements to declare its presence. You
can use this command to configure the interval at which the master sends VRRP advertisements.
HP recommends that you set the VRRP advertisement interval to be greater than 100 centiseconds to
maintain system stability.
In VRRPv2, all routers in an IPv4 VRRP group must have the same interval for sending VRRP
advertisements.
In VRRPv3, the routers in an IPv4 VRRP group can have different intervals for sending VRRP
advertisements. The master in the VRRP group sends VRRP advertisements at the specified interval and
carries the interval attribute in the advertisements. After a backup receives the advertisement, it records
the interval in the advertisement. If the backup does not receive a new VRRP advertisement from the
master when the timer (3 × recorded interval + Skew_Time) expires, it regards the master as failed and
takes over as the master.
Large network traffic might disable a backup from receiving VRRP advertisements from the master within
the specified time and trigger an unexpected master switchover. To solve this problem, you can use this
command to configure a larger interval.
Examples
# Configure the master in IPv4 VRRP group 1 to send VRRP advertisements at an interval of 500
centiseconds.
<Sysname> system-view
[Sysname] interface gigabitethernet 2/0/1
[Sysname-GigabitEthernet2/0/1] vrrp vrid 1 timer advertise 500
Related commands
display vrrp
vrrp vrid track
Use vrrp vrid track to associate a VRRP group with a track entry and control master switchover in the
VRRP group in response to changes (such as uplink state changes) detected by the track entry.
Use undo vrrp vrid track to remove the association between a VRRP group and a track entry. If no track
entry is specified, the association between the VRRP group and any track entry is removed.
Syntax
vrrp vrid virtual-router-id track track-entry-number [ reduced priority-reduced | switchover ]
undo vrrp vrid virtual-router-id track [ track-entry-number ]
Default
A VRRP group is not associated with any track entry.
Views
Interface view
Predefined user roles
network-admin