H3C Technologies H3C SR8800 - Manual (Page 123)

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• Monitor the master on a backup. If a fault occurs on the master, the backup working in the
switchover mode will switch to the master immediately to maintain normal communication.
When VRRP works in the load balancing mode, through the association between the track module and
VRRP Virtual Forwarder (VF), you can change the priority of a VF according to the status of the uplink.
When the uplink of the active VF (AVF) fails, the status of the track entry changes to Negative and the
weight of the VF decreases by a specific value so that the VF with a higher priority becomes the AVF and
forwards packets.
To associate track with VRRP group:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter interface view.
interface interface-type
interface-number
N/A
3. Create a VRRP group and
configure its virtual IP
address.
vrrp vrid virtual-router-id virtual-ip
virtual-address No VRRP group is created by
default.
4. Associate a track entry with a
VRRP group.
vrrp [ ipv6 ] vrid virtual-router-id
track track-entry-number [ reduced
priority-reduced | switchover ]
No track entry is specified for a
VRRP group by default.
This command is supported when
VRRP works in both the standard
protocol mode and load balancing
mode.
To associate track with VRRP VF:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter interface view. interface interface-type
interface-number
N/A
3. Create a VRRP
group and configure
its virtual IP address.
vrrp vrid virtual-router-id virtual-ip
virtual-address
No VRRP group is created by default.
4. Associate a track
entry with the VRRP
VF.
vrrp [ ipv6 ] vrid virtual-router-id weight
track track-entry-number [ reduced
weight-reduced ]
By default, no track entry is specified for
a VF.
This command is supported when VRRP
works in both standard protocol mode
and load balancing mode. However,
this function takes effect only when VRRP
works in load balancing mode.