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Collaboration application example, Track configuration task list – H3C Technologies H3C MSR 5600 User Manual

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BFD.

Interface management.

Collaboration between the Track module and an application module

The following application modules can be associated with the Track module:

VRRP.

Static routing.

Policy-based routing.

When you configure a track entry for an application module, you can set a notification delay to avoid
immediate notification of status changes, which can cause communication failure. This issue occurs when

route convergence is slower than the link state change notification. For example, when the master in a

VRRP group detects that the uplink interface fails through the Track module, the Track module notifies the

master to decrease its priority so that a backup with higher priority preempts as the new master. When
the failed uplink interface recovers, the Track module immediately notifies the original master to restore

its priority and forward traffic. If the uplink route has not recovered, forwarding failure will occur.

Collaboration application example

The following is an example of collaboration between NQA, Track, and static routing.
Configure a static route with next hop 192.168.0.88 on the device. If the next hop is reachable, the static

route is valid. If the next hop becomes unreachable, the static route should become invalid. For this

purpose, configure collaboration between the NQA, track, and static routing modules:

1.

Create an NQA test group to monitor the accessibility of IP address 192.168.0.88.

2.

Create a track entry and associate it with the NQA test group. When the next hop 192.168.0.88
is reachable, the track entry is in Positive state. When the next hop becomes unreachable, the track
entry is in Negative state.

3.

Associate the track entry with the static route. When the track entry turns to the Positive state, the
static route is valid. When the associated track entry turns to Negative state, the static route is

invalid.

Track configuration task list

To implement the collaboration function, establish associations between the Track module and the

detection modules, and between the Track module and the application modules.
To configure the Track module, perform the following tasks:

Tasks at a glance

Remarks

(Required.)

Associating the Track module with a detection module

:

Associating Track with NQA

Associating Track with BFD

Associating Track with interface management

Use one of the
methods.

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