Overview Track

Track can be used to monitor some information when the system runs. The other service modules can be associated with Track so that the service module can monitor the change when the system runs. After the service module is associated with Track and when the information monitored by Track changes, Track informs the service module so that the service module can process correspondingly. For example, in the actual application, VRRP and VBRP often monitor the uplink interface status and network availability by associating with Track and adjust its own priority according to the information, so as to realize the active/standby switchover.