Associating The Track Module With An Application Module; Associating Track With Vrrp - HP A5830 series Configuration Manual

To do...
• 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
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. Routers in the VRRP group elect the master acting as the gateway
according to their priorities. 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
gateway to undertake the responsibility of the failed master. This ensures that the hosts in the network
segment can uninterruptedly communicate with external networks.
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 cannot be 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 then decreases by a specific value, allowing
a higher priority router in the VRRP group to become the master, and maintaining proper
communication between the hosts in the LAN and the external network.
Monitor the master on a backup. If a fault occurs on the master, the backup working in switchover
•
mode will switch to the master immediately to maintain normal communication.
To associate track with VRRP group:
To do...
• Enter system view
• Enter interface view
• Create a VRRP group and
configure its virtual IP address
Use the command...
track track-entry-number interface
interface-type interface-number protocol {
ipv4 | ipv6 } [ delay { negative negative-
time | positive positive-time } * ]
Use the command...
system-view
interface interface-type interface-
number
vrrp vrid virtual-router-id virtual-ip
virtual-address
164
Remarks
Remarks
—
—
Required
No VRRP group is created by
default