3Com Switch 8800 Advanced Software V5 Configuration Guide

Configuring VRRP for IPv6 773
■ A standby group is removed after you remove all the virtual IPv6 addresses in it.
In addition, configurations on that standby group no longer take effect.
Configuring Priority,
Preemption Mode and
Interface Tracking for a
Standby Group
Configuration prerequisites
Before configuring these features, you should first create the standby group and
configure the virtual IPv6 address.
Configuration procedure
By configuring standby group priority, preemption mode and interface tracking,
you can decide which switch in the standby group serves as the Master.
Follow these steps to configure priority, preemption mode and interface tracking
for a standby group:
c
CAUTION:
■ The priority of an IP address owner is always 255 and not configurable.
■ Interface tracking is not configurable on an IP address owner.
■ Tracked interfaces can only be VLAN interfaces.
■ The priority of a device is reset if the state of the interface under tracking
changes from down to up.
Configuring VRRP Packet
Attributes
Configuration prerequisites
Before configuring the relevant attributes of VRRP packets, you should first create
the standby group and configure the virtual IPv6 address.
To do... Use the command... Remarks
Enter system view system-view -
Enter VLAN interface view interface interface-type
interface-number
-
Configure the priority of the
switch in the standby group
vrrp ipv6 vrid
virtual-router-id priority
priority-value
Optional
100 by default
Configure the switch in the
standby to work in
preemption mode and
configure preemption delay of
the standby group
vrrp ipv6 vrid
virtual-router-id
preempt-mode [ timer
delay delay-value ]
Optional
The switch in the standby
group works in preemption
mode and the preemption
delay is zero seconds by
default.
If the switch in the standby
group works in non
preemption mode, the
preemption delay changes to
zero seconds automatically.
Configure the interface to be
tracked
vrrp ipv6 vrid
virtual-router-id track
interface interface-type
interface-number [ reduced
priority-reduced ]
Optional
No interface is being tracked
by default.