Associating The Track Module With An Application Module; Associating Track With Static Routing - HP 5130 EI Series Configuration Manual

When the link or network-layer protocol status of the interface changes to down, the interface
•
management module informs the Track module of the change. The Track module sets the track entry
to Negative.
To associate Track with interface management:
Step
1. Enter system view.
2. Associate Track with interface
management.
Associating the Track module with an application
module

Associating Track with static routing

A static route is a manually configured route. With a static route configured, packets to the specified
destination are forwarded through the path specified by the administrator. For more information about
static route configuration, see Layer 3—IP Routing Configuration Guide.
The disadvantage of using static routes is that they cannot adapt to network topology changes. Faults or
topological changes in the network can make the routes unreachable, causing communication
interruption.
To prevent this problem, configure another route to back up the static route. When the static route is
reachable, packets are forwarded through the static route. When the static route is unreachable, packets
are forwarded through the backup route.
To check the accessibility of a static route in real time, associate the Track module with the static route.
If you specify the next hop but not the output interface when configuring a static route, you can configure
the static routing-Track-detection module collaboration. This collaboration enables you to verify the
accessibility of the static route based on the status of the track entry.
If the track entry is in Positive state, the following conditions exist:
•
The next hop of the static route is reachable.
The configured static route is valid.
• If the track entry is in Negative state, the following conditions exist:
Command
system-view
•
Associate Track with the interface
management module to monitor the
link status of an interface:
track track-entry-number interface
interface-type interface-number [ delay
{ negative negative-time | positive
positive-time } * ]
•
Associate Track with the interface
management module to monitor the
Layer 3 protocol status of an interface:
track track-entry-number interface
interface-type interface-number
protocol { ipv4 | ipv6 } [ delay
{ negative negative-time | positive
positive-time } * ]
133
Remarks
N/A
By default, no track entry is
created.