PLANET XGS3-24040 - Manual (Page 817)

55-3
Example: Enable the VRRPv3 virtual router whose ID is 10.
Switch(config)#router ipv6 vrrp 10
Switch(config-router)#enable
55.6 preempt-mode
Command: preempt-mode {true | false}
Function: Configure the preempt mode of VRRPv3.
Parameters: None.
Command Mode: VRRPv3 Protocol Mode.
Default: It is preempt mode by default.
Usage Guide: If it is needed that a router (or a layer-three switch) with higher priority can the role of
master router, the preempt mode needs to be configured.
Example: Configure VRRPv3 as non-preempt mode.
Switch(config-router)# preempt-mode false
55.7 priority
Command: priority <value>
Function: Configure the priority of VRRPv3.
Parameters: <value> is the priority, whose range is from 1 to 254.
Command Mode: VRRPv3 Protocol Mode.
Default: Backup routers（or layer-three switches）all have a priority of 100, the priority of IP address
owners are all 255 in the backup group they belong to.
Usage Guide: Priority decides the state of a router (or a layer-three Ethernet switch) in a backup group.
The higher the priority is, the more possible the router can be a Master. The configurable priority ranges
from 1 to 254, while the priority of 255 is reserved to the IP address owner. The priority of 0 has special
usage, which is when disabling a VRRP session, Master will send an advertisement message with a
priority of 0. When Backup receives such advertisement message, it will start a new round of Master
selection. When there are two or more routers (or layer-three switches) in one backup group have the
same priority, the router with biggest local link IPv6 address has higher priority.
Example: Configure the priority of VRRPv3 as 150.
Switch(config-router)# priority 150
55.8 router ipv6 vrrp
Command: router ipv6 vrrp <vrid>
no router ipv6 vrrp <vrid>
Function: Create or delete a VRRPv3 virtual router.
Parameters: <vrid> is the ID of the virtual router, the valid range is 1 to 255.
Command Mode: Global Mode.
Default: There is no configuration by default.