H3C Technologies H3C S12500 Series Switches - Manual (Page 210)

199
Configuring Track
Overview
Introduction to collaboration
The Track module works between application and detection modules, as shown in Figure 50 . It hides the
differences among detection modules from application modules.
Collaboration is enabled after you associate the Track module with a detection module and an
application module. The detection module monitors specific objects such as interface status, link status,
network reachability, and network performance, and informs the Track module of detection results. The
Track module sends the detection results to the associated application module, and the application
module takes actions when the tracked object changes its state.
Figure 50 Collaboration through the Track module
Collaboration fundamentals
The Track module collaborates with detection modules and application modules:
• Collaboration between the Track module and a detection module
• Collaboration between the Track module and an application module
Collaboration between the Track module and a detection module
After being associated with a track entry, the detection module sends the detection result of the tracked
object to the Track module, which then changes the status of the track entry:
• If the tracked object functions correctly, for example, the target interface is up or the target network
is reachable, the state of the track entry is Positive.
• If the tracked object does not function correctly, for example, the target interface is down or the
target network is unreachable, the state of the track entry is Negative.
• If the detection result is not valid, for example, the NQA test group that is associated with the track
entry does not exist, the state of the track entry is Invalid.