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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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WLAN_1.3.6.1.4.1.2011.6.139.16.1.1.1.1 hwRadioChannelChangedTrap

WLAN_1.3.6.1.4.1.2011.6.139.16.1.1.1.1 hwRadioChannelChangedTrap

Description

WLAN/4/RADIO_CHANNEL_CHANGE_NOTIFY:OID [oid] Channel of radio is changed. (APMAC=[OPAQUE], RadioID=[INTEGER], APName=[OCTET], Channel1=[INTEGER], Channel2=[INTEGER], CauseId=[INTEGER], CauseStr=[OCTET], PreChannel1=[INTEGER], PreChannel2=[INTEGER], APID=[INTEGER])

The AP channel was changed.

Attribute

Alarm ID Alarm Severity Alarm Type
1.3.6.1.4.1.2011.6.139.16.1.1.1.1 Warning environmentalAlarm(6)

Parameters

Name Meaning
OID Indicates the ID of the MIB object.
APMAC Indicates the MAC address of an AP.
RadioID Indicates the radio ID.
APName Indicates the AP name.
Channel1/Channel2 Indicates the actual working channel of the AP.
CauseId Indicates the channel change reason.
  • 1: unknown(1) - The channel was changed due to an unknown reason.
  • 2: dfs(2) - The channel was changed due to Dynamic Frequency Selection (DFS).
  • 3: wds(3) - The channel was changed due to WDS network establishment.
  • 4: config(4) - The channel was changed due to manual configurations.
  • 5: calibrate(5) - The channel was changed due to radio calibration.
CauseStr Indicates a character string describing channel change reasons.
PreChannel1/PreChannel2 Indicates the channel before change.
NOTE:

When an AP goes online on an AC for the first time, the channel of the AP before change is not saved on the AC. Therefore, when a channel change alarm is generated for the first time, the original channel of the AP is displayed as 255 in the alarm.

APID Indicates the AP ID.

Impact on the System

The working channel of the AP was changed, which may affect the other APs.

Possible Causes

1:

The radio was calibrated.

2:

Users changed the channel.

3:

Radar signals conflicted.

4:

The channel changed in WDS mode.

Procedure

  1. No action is required.

Related Information

None.

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Updated: 2019-05-06

Document ID: EDOC1000174085

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