Avaya G430 Manual page 283

is composed of multiple simple object trackers. The state of the track list is calculated
based on the states of the objects in the list. Because a track list is itself an object tracker,
the objects in a track list can be previously-defined track lists.
You can view a track list as monitoring the "health" of an entire group of remote devices.
You can define how to calculate the overall health of the group based on the health (up/
down) state of each individual device. For example, you can specify that the overall state
is up only if all remote devices are up, or if at least one device is up. Alternatively, you
can base the overall state on a threshold calculation.
Using object tracking, different applications can register with the tracking process, track the
same remote devices, and each take different action when the state of the remote devices
changes.
Related topics:
Configuring object tracking
Tasks for maintaining object tracking
Typical object tracking applications
Summary of object tracking configuration commands
Configuring object tracking
Procedure
1. Configure RTRs to monitor remote devices and learn if their state is up or down.
2. Configure object trackers to track the states of RTRs.
Administering Avaya G430 Branch Gateway
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Each RTR has a state:
• inactive. Not running
• up. The remote device is considered up
• down. The remote device is considered down
Each object tracker calculates its own state as either up or down based on the states
of the elements it is tracking. Whenever the state of an object tracker changes, it
notifies the applications registered with it.
An object tracker calculates its own state as follows:
• For an object tracker tracking a single RTR:
- If the state of the RTR is up, the state of the object tracker is up.
- If the state of the RTR is inactive or down, the state of the object tracker is
down.
A track list applies a configurable formula (using a Boolean or a Threshold
calculation) to the states of the objects comprising the list, and the result (up/down)
is the state of the track list. For example, if the configured formula is the Boolean
AND argument, then the state of the list is up if the state of all its objects is up, and
down if the state of one or more of its objects is down.
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WAN interfaces
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