Associating The Track Module With An Application Module; Associating Track With Vrrp - HP 6125XLG Configuration Manual

Step
2. Associating Track with
interface management.
Associating the Track module with an application
module

Associating Track with VRRP

VRRP is an error-tolerant protocol. It adds a group of routers that can act as network gateways to a VRRP
group, which forms a virtual router. Depending on their priority level, routers in the VRRP group elect the
master router to act as the gateway. A router with a higher priority is more likely to become the master.
The other routers function as the backups. When the master fails, the backups in the VRRP group elect a
new master from among them. This makes sure the hosts in the network segment can communicate with
external networks without interruption. For more information about VRRP, see
When VRRP is operating in standard protocol mode or load balancing mode, associate the Track
module with the VRRP group to implement the following actions:
Change the priority of a router according to the status of the uplink. If a fault occurs on the uplink
•
of the router, the VRRP group is not aware of the uplink failure. If the router is the master, hosts in the
LAN cannot access the external network. This problem can be solved by establishing a track-VRRP
group association. Use the detection modules to monitor the status of the uplink of the router and
establish collaborations between the detection modules, track module and VRRP. When the uplink
fails, the detection modules notify the Track module to change the status of the monitored track entry
to Negative, and the priority of the master decreases by a user-specified value. This allows a higher
priority router in the VRRP group to become the master, and maintains proper communication
between the hosts in the LAN and the external network.
Command
•
Create a track entry, associate it with
the interface management module to
monitor the link status of an interface,
and specify the delay time for the Track
module to notify the associated
application module when the track
entry status changes:
track track-entry-number interface
interface-type interface-number [ delay
{ negative negative-time | positive
positive-time } * ]
•
Create a track entry, associate it with
the interface management module to
monitor the Layer 3 protocol status of
an interface, and specify the delay time
for the Track module to notify the
associated application module when
the track entry status changes:
track track-entry-number interface
interface-type interface-number
protocol { ipv4 | ipv6 } [ delay
{ negative negative-time | positive
positive-time } * ]
98
Remarks
Use either method.
No track entry is created by
default.
"Configuring VRRP."