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• If you configure the vrrp ipv6 vrid track priority reduced or vrrp ipv6 vrid track switchover
command on an IP address owner, the configuration does not take effect until the router
becomes a non IP address owner.
• When the track entry changes from Negative to Positive or Notready, the router automatically
restores its priority or the failed master router becomes the master again.
Configuration procedure
To configure the router priority, preemptive mode, and tracking function:
Step Command Remarks
1. Enter system view.
system-view
N/A
2. Enter interface view.
interface
interface-type
interface-number
N/A
3. Configure the priority of the
router in the VRRP group.
vrrp ipv6 vrid
virtual-router-id
priority
priority-value
The default setting is 100.
4. Enable the preemptive mode
for the router in a VRRP
group and configure the
preemption delay time.
vrrp ipv6 vrid
virtual-router-id
preempt-mode
[
delay
delay-value ]
By default, the router in a VRRP
group operates in preemptive
mode and the preemption delay
time is 0 centiseconds.
5. Associate a VRRP group
with a track entry.
vrrp ipv6 vrid
virtual-router-id
track
track-entry-number
{
forwarder-switchover
member-ip
ipv6-address |
priority reduced
[ priority-reduced ] |
switchover
|
weight reduced
[
weight
-
reduced
]
}
By default, a VRRP group is not
associated with any track entry.
Configuring VF tracking
You can configure VF tracking in both standard mode and load balancing mode, but the function
takes effect only in load balancing mode.
In load balancing mode, you can configure the VFs in a VRRP group to monitor a track entry. When
the state of the track entry transits to Negative, the weights of all VFs in the VRRP group on the
router decrease by a specific value. When the state of the track entry transits to Positive or Notready,
the original weights of the VFs restore. If you configure the VF tracking function on an LVF to monitor its
corresponding AVF on a specified router, the LVF can take over immediately when the status of the track
entry becomes negative, to ensure uninterrupted network communications.
Configuration guidelines
• By default, the weight of a VF is 255, and its lower limit of failure is 10.
• When the weight of a VF owner is higher than or equal to the lower limit of failure, its priority is
always 255 and does not change with the weight. To guarantee that an LVF can take over the
VF owner as the AVF when the upstream link of the VF owner fails, the reduced weight for the
VF owner must be higher than 245 so the weight of the VF owner can drop below the lower limit
of failure.
Configuration procedure
To configure VF tracking:
Step Command Remarks
1. Enter system view.
system-view
N/A
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