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Alarm Handling

AR100-S, AR110-S, AR120-S, AR150-S, AR160-S, AR200-S, AR1200-S, AR2200-S, and AR3200-S V200R009

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EOAM_Y1731_1. hwCfmVlanTwowayDelay

EOAM_Y1731_1. hwCfmVlanTwowayDelay


EOAM_Y1731/4/VLAN_2DM_EXCEED_THRESHOLD:OID [OID] The result of two-way delay-measure exceeded the threshold. (MdIndex=[GAUGE], MaIndex=[GAUGE], RemoteMacAddress=[OPAQUE], Timestamp=[TIMETICK], DelayValue=[GAUGE], ThresholdValue=[GAUGE])

In the VLAN networking where two-way frame delay measurement was configured and the expected alarm threshold was set, if the network delay exceeded the set alarm threshold, an alarm was generated.


Alarm ID Alarm Severity Alarm Type Warning qualityOfServiceAlarm(3)


Name Meaning


Indicates the MIB object ID of the alarm.


Index of the MD where a two-way frame delay alarm is generated


Index of the MA where a two-way frame delay alarm is generated


Source MAC address contained in the DMR frame received by the local end from the remote end


Timestamp indicating the time when a two-way frame delay alarm is generated


Delay when a two-way frame delay alarm is generated


An alarm threshold for two-way frame delay measurement

Impact on the System

Services will not be affected.

Possible Causes

The device was enabled with two-way frame delay measurement and was configured with an alarm threshold, and the delay in bidirectional frame transmission exceeded the alarm threshold.


  1. Run the trace mac-8021ag command to check whether there is a long delay on the link or device on the network.

    • If there is such a long delay, go to Step 2.

    • If there is no such a long delay, go to Step 3.

  2. Troubleshoot the fault of a long delay. Then, check whether the alarm is cleared.

    • If the alarm is cleared, go to Step 4.

    • If the alarm is not cleared, go to Step 3.

  3. Collect alarm information and configuration information, and then contact technical support personnel.
  4. End.

Related Information


Updated: 2019-05-06

Document ID: EDOC1000174085

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