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DES-7200 Configuration Guide Chapter 1 VRRP Configuration
1-6
Command Purpose
DES-7200(config-if)# vrrp group timers
advertise
interval
Set the master device VRRP advertisement
interval.
DES-7200(config-if)# no vrrp group timers
advertise [interval]
Restore the VRRP advertisement interval
of the master device to the default value.
If the current device becomes the master in the VRRP group, it will notify its VRRP
status, priority and more information by sending VRRP advertisements at the
specified interval. By default, this interval is 1 second.
Note
When the VRRP timer learning function is not configured, the routers
in a VRRP group should be configured with the same VRRP
advertisement interval; otherwise, the routers in the standby status will
drop the received VRRP advertisement
1.3.5 Setting the Preemption Mode
of the Router in the VRRP
Backup Group
If the VRRP group is working in the preemption mode, once it finds its priority is higher
than the Master priority, it will preempt to become the master of the VRRP group. If the
VRRP group is not working in the preemption mode, even if a device finds its priority is
higher than the Master priority, it will not preempt to become the master of the VRRP
group. In case the VRRP group is using the Ethernet interface IP address, the setting
of the preemption mode does not make sense, because this VRRP group has the
highest priority and thus it automatically become the master in the VRRP group.
Command Purpose
DES-7200(config-if)# vrrp group preempt
[delay seconds]
Set VRRP backup group to work in the
preemption mode
DES-7200(config-if)# no vrrp group preempt
[delay]
Set VRRP backup group to work in the
preemption mode
The optional parameter delay seconds defines the delay for the VRRP router
prepares to declare its Master identify, 0 seconds by default. Once the VRRP function
is enabled, the VRRP group will work in the preemption mode by default.
1.3.6 Setting the Accept_ Mode of
IPv6 VRRP Virtual Router
IPv6 VRRP virtual router in Master state can use Accept_Mode to determine whether
or not to receive and handle packets destined to the virtual router. If Accept_Mode is
configured, it means that the IPv6 VRRP virtual router in Master state needs to receive