mpls l2vpn alarm verification disable

If MPLS L2VPN alarm verification is enabled on a device, the device regularly sends service alarms to the fault management (FM) module until these alarms are cleared. The FM then compares received alarms with locally stored alarms. If a received alarm is different from any of the locally stored alarms, the FM module reports the alarm to the NMS. If a received alarm is the same as a locally stored alarm, the FM module does not report this alarm.

Sometimes, alarms cleared on the device may still be displayed on the NMS. To ensure alarm consistency between the device and NMS, the FM module ages out such alarms after three alarm verification intervals and then instructs the NMS to delete these alarms. This function effectively eliminates alarm residue to improve alarm reliability.

If a large number of services exist, MPLS L2VPN alarm verification may regularly drive the CPU usage to a high level, affecting service performance. In this case, you can run the mpls l2vpn alarm verification disable command to disable MPLS L2VPN alarm verification. After MPLS L2VPN alarm verification is disabled, the device sends service alarms to the FM module only once, and the FM module cannot age out cleared alarms.