Configuring Collaboration Between The Track Module And The Application Modules; Configuring Collaboration Between The Track Module And The Interface Management Module; Configuring Track-Vrrp Collaboration - 3Com S7906E Configuration Manual

Configuring Collaboration Between the Track Module and the Interface Management
Module
Through the following configuration, you can establish the collaboration between the track module and
the interface management module, which informs the track module of the changes of the physical
status and Layer 3 protocol status of an interface.
Follow these steps to configure collaboration between the track module and the interface management
module:
To do...
Enter system view
Create a track entry, associate
it with the interface
management module to
monitor the physical status of
an interface, and specify the
delay time for the track module
to notify the application
modules when the track entry
status changes
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
application modules when the
track entry status changes
Configuring Collaboration Between the Track Module and the
Application Modules

Configuring Track-VRRP Collaboration

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 a master.
The other routers function as the backups. When the master fails, to ensure that the hosts in the
network segment can communicate with the external networks uninterruptedly, the backups in the
VRRP group elect a new gateway to undertake the responsibility of the failed master
When VRRP works in the standard protocol mode or load balancing mode, through the Track-VRRP
collaboration, you can:
Change the priority of a router according to the status of the uplink. If there is a fault 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 with the track-VRRP
collaboration function. Use the detection modules to monitor the status of the uplink of the router
and establish the 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 thus decreases by a specified value, allowing
Use the command...
system-view
track track-entry-number
interface interface-type
interface-number [ delay
{ negative negative-time |
positive positive-time } * ]
track track-entry-number
interface interface-type
interface-number protocol
{ ipv4 | ipv6 } [ delay
{ negative negative-time |
positive positive-time } * ]
1-4
Remarks
—
Required
Use either approach
No track entry that is
associated with the BFD
session is created by default.