R3303-HP HSR6800 Routers High Availability Command Reference

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Related commands
• display vrrp
• vrrp vrid track interface
vrrp vrid track interface
Use vrrp vrid track interface to configure to track the specified interface.
Use undo vrrp vrid track interface to disable tracking the specified interface.
Syntax
vrrp vrid virtual-router-id track interface interface-type interface-number [ reduced priority-reduced ]
undo vrrp vrid virtual-router-id track [ interface interface-type interface-number ]
Default
No interface is tracked.
Views
Interface view
Default command level
2: System level
Parameters
virtual-router-id: VRRP group number in the range of 1 to 255.
interface interface-type interface-number: Specifies an interface to be tracked by its type and number.
reduced priority-reduced: Value by which the priority decrements. The value range for the
priority-reduced argument is 1 to 255 and the default is 10.
Usage guidelines
When the uplink interface of a router in a VRRP group fails, usually the VRRP group cannot be aware of
the uplink interface failure. If the router is the master of the VRRP group, hosts on the LAN are not able
to access external networks because of the uplink failure. This problem can be solved through tracking a
specified uplink interface. After you configure to monitor the uplink interface, when the uplink interface
is down or removed, the priority of the master is automatically decreased by a specified value, allowing
a higher priority router in the VRRP group to become the master.
Before executing the command, create a VRRP group on an interface and configure the virtual IP address
of the VRRP group.
If no interface is specified, the undo vrrp vrid track interface command removes the association between
the VRRP group and any interface.
If you configure an interface to be tracked on a router that is the IP address owner in a VRRP group, the
configuration does not take effect. If the router is not the IP address owner in the VRRP group later, the
configuration takes effect.
When the status of the tracked interface turns from down or removed to up, the corresponding router
automatically restores its priority.
The interface specified in this command can be a Layer 3 Ethernet interface, a VLAN interface, a Layer
3 aggregate interface, a synchronous/asynchronous serial interface, a POS interface, an MP-group
interface, a dialer interface, a BRI interface, an HDLC link bundle interface, or an RPR logical interface.