H3C Technologies H3C WX3000E Series Wireless Switches - Manual (Page 27)

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Step Command Remarks
6. Configure VRRP to track a
specified track entry.
vrrp vrid virtual-router-id track
track-entry-number [ reduced
priority-reduced | switchover ]
Optional.
Not configured by default.
Configuring VF tracking
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 weight values 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 Invalid, the original
weight values of the VFs restore.
Configuration guidelines
• You can configure VF tracking in both standard protocol mode and load balancing mode, but the
function takes effect only in load balancing mode.
• 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 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 prerequisites
Before you configure the VF tracking function, create a VRRP group and configure a virtual IP address for
it.
Configuration procedure
VRRP operates in load balancing mode. Suppose that the VF is configured to monitor the track entry.
When the state of the track entry becomes negative, the weight values of all VFs on the routers decrease
by a specified value; when the state of the track entry becomes positive or invalid, the weight values of
all VFs on the routers restore their original values.
To configure VF tracking:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter the specified interface
view.
interface interface-type
interface-number
N/A
3. Create a VF tracking entry.
vrrp vrid virtual-router-id weight
track track-entry-number [ reduced
weight-reduced ]
By default, no tracking entry exists.
Configuring VRRP packet attributes
Configuration guidelines
• You can configure different authentication modes and authentication keys for the VRRP groups on
an interface. However, members of the same VRRP group must use the same authentication mode
and authentication key.