ALM-3224641536 The status of VRRP changed to master

Description

VRRP/2/VRRPCHANGETOMASTER:OID [OID] The status of VRRP changed to master. (VrrpIfIndex=[VrrpIfIndex], VrId=[VrId], IfIndex=[IfIndex], IPAddress=[Router-ID], NodeName=[NodeName], IfName=[IfName], ChangeReason=[ChangeReason])

The state of router changed to master.

Attribute

Parameters

Impact on the System

• If master/backup switchover occurs in normal cases, services are not affected.
• If master/backup switchover occurs in abnormal cases, services may be interrupted.

Possible Causes

Cause 1:

The former master router was faulty.

Cause 2:

The former master link was faulty.

Cause 3:

The priority of the former master router or backup router changed.

Cause 4:

The logical interface where the VRRP backup group resides on the master router is deleted or the configuration of the VRRP backup group is deleted.

Cause 5:

The former master router recovers from a fault.

Cause 6:

The former master link recovers from a fault.

Procedure

1. View user logs to check the causes of the VRRP change. You can perform operations according to the specific cause.
   • If the cause is priority calculation, go to step 6.
   • If the cause is that the MASTER_DOWN timer expired, go to step 2.
   • If the cause is the change of the BFD session status, go to step 2.
   • If the cause is the change of the interface status, go to step 2.
   • If the cause is admin-vrrp DROVE, go to step 6.

2. Run the display vrrp command to check the status of the VRRP backup group on the former master router.
   • If the VRRP backup group is in the Initialize state, the former router is faulty. Locate the cause of the fault and restore the master router. Go to step 8.
   • If the VRRP backup group is in the Backup state, go to step 6.
   • If the VRRP backup group is in the Master state, go to step 3.

3. Check whether the master link is faulty.
   • If BFD is configured, go to step 4.
   • If BFD is not configured, go to step 5.

4. Run the display vrrp command to check the status of the BFD session.
   • If the BFD session is Down, it indicates that the former master link is faulty. Locate the cause of the fault and restore the master link. Go to step 8.
   • If the BFD session is Up, go to step 7.

5. Run the display vrrp [ interface interface-type interface-number ] [virtual-router-id ] statistics command to check whether the VRRP packets are normally forwarded.
   • If not, it indicates that the link is faulty. Locate the cause of the fault and restore the link. Go to step 8.
   • If so, go to step 7.

6. On the former master router and backup router, run the display vrrp command to check whether the configured priority of the VRRP is consistent with the running priority.
   • If not, it indicates that the link monitored through VRRP is faulty. Locate the cause of the fault and restore the monitored link. Go to step 8.
   • If so, go to step 7.

7. Collect alarm information and configuration information, and then contact technical support personnel.
8. End.

Clearing

After the fault is rectified, the system clears this alarm, removing the need to manually clear it. This alarm will not be displayed on the Current Alarms page.