Configuring The Priority Of Switches In The Virtual Router; Configuring Preemption And Delay For A Switch Within A Virtual Router - Huawei Quidway S6500 Series Operation Manual

Operation Manual - Reliability
Quidway S6500 Series Ethernet Switches
After the last virtual IP address is removed from the virtual router, the whole virtual
router will also be removed. That is, there is no more virtual router on the interface
any more and any configuration of it is invalid accordingly.

1.2.4 Configuring the Priority of Switches in the Virtual Router

The status of each switch in the virtual router is determined by its priority in VRRP.
The switch with the highest priority becomes the master.
Perform the following configuration in VLAN interface view.
Table 1-4 Configure the priority of switches in the virtual router.
Configure the priority of switches in the
virtual router
Clear the priority of switches in the
virtual router
The priority ranges from 0 to 255 (the greater the number, the higher the priority).
However the value can only be taken from 1 to 254. The value 0 is reserved for
special use and the value 255 is reserved for the IP address owner by the system. By
default, the priority is 100.
Note:
The priority for IP address owner is always 255, which cannot be configured
otherwise.

1.2.5 Configuring Preemption and Delay for a Switch Within a Virtual Router

As long as a switch in the virtual router becomes the master switch, other switches,
even if they are configured with a higher priority later, cannot become the master
switch unless they are configured to work in preemption mode. The switch in
preemption mode will become the master switch, when it finds its own priority is
higher than that of the current master switch, and the former master switch will
become the backup switch accordingly.
In addition to preemption settings, a delay can also be set. backup will wait for a
period of time before becoming a master. In an unstable network if the backup switch
Operation
Huawei Technologies Proprietary
1-5
Chapter 1 VRRP Configuration
Command
vrrp vrid virtual-router-ID
priority
undo vrrp vrid virtual-router-ID priority
priority