Operation Manual – Reliability
H3C S9500 Series Routing Switches
Chapter 1 VRRP Configuration
1-5
The
virtual
-
address
can be an unused address in the network segment where the
virtual router resides, or the IP address of an interface in the virtual router. If the IP
address is of the switch in the virtual router, it can also be configured as
virtual
-
address
.
In this case, the switch will be called an IP Address Owner. When adding the first IP
address to a virtual router, the system will create a new virtual router accordingly. When
adding a new address to this virtual router thereafter, the system will directly add it into
the virtual IP address list.
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.
1.2.5 Configuring the Priority of Switches in the Virtual Router
The status of each switch in the virtual router will be determined by its priority in VRRP.
The switch with the highest priority will become the Master.
Perform the following configuration in VLAN interface view.
Table 1-5
Configure the priority of switches in the virtual router.
Operation
Command
Configure the priority of switches in the
virtual router.
vrrp vrid virtual
-
router
-
ID
priority
priority
Clear the priority of switches in the
virtual router.
undo vrrp vrid virtual-router-ID priority
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 priority 0 is reserved for special
use and 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.
1.2.6 Configuring Preemption and Delay for a Switch within a Virtual Router
Once a switch in the virtual router becomes the Master switch, so long as it still
functions properly, other switches, even 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
