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L2V_1.3.6.1.4.1.2011.5.25.119.1.2.5 hwVplsVcBackup

Description

L2V/1/VPLSVC_BACKUP_T:OID [oid] The status of the VPLS VC turned BACKUP. (VsiName=[STRING], PwId=[GAUGE], RemoteIp=[IPADDR], PwType=[INTEGER], HWL2VpnStateChangeReason=[INTEGER], SysUpTime=[TIMETICK])

The VPLS VC turned to the Backup state.

Attribute

Alarm ID Alarm Severity Alarm Type
1.3.6.1.4.1.2011.5.25.119.1.2.5

Critical

 other(1)

Parameters

Name Meaning

oid

Indicates the MIB object ID of the alarm.

VsiName

Name of a VSI.

PwId

ID of a PW.

RemoteIp

IP address of the remote peer.

PwType
Type of a PW:
  • 1: normal
  • 2: other

HWL2VpnStateChangeReason

Cause of the VC status change. For details, refer to hwVplsStateChangeReason in the appendix of HUAWEI-VPLS-EXT-MIB.

SysUpTime

Time for system startup.

Impact on the System

If the VRRP works normally, packet loss will occur within a short period of time when the traffic is switched from the master VRRP to the backup VRRP. Services will not be affected when the traffic is switched back from the backup VRRP to the master VRRP.

Possible Causes

1.

The PW-bound VRRP protection group turned to the non-master state.

2.

The PW-bound VRRP protection group turned to the backup state.

3.

The interface board configured with the PW-bound VRRP protection group was pulled out.

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 switch.

    • If the VRRP backup group is in the Initialize state, it indicates that the former switch is faulty. Locate the cause of the fault and restore the master switch. 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 switch and backup switch, 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.

Related Information

L2V_1.3.6.1.4.1.2011.5.25.119.1.2.1 hwVplsVcDown

L2V_1.3.6.1.4.1.2011.5.25.119.1.2.2 hwVplsVcUp

Parent Topic: L2V
Copyright © Huawei Technologies Co., Ltd.
Copyright © Huawei Technologies Co., Ltd.
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