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Updated on 2024-01-25 GMT+08:00

ALM-303046772 Radio Signal Environment Deteriorates

Description

WLAN/4/RADIO_ENV_DETERIORATE:OID [oid] Radio signal environment deteriorates. (APMAC=[OPAQUE], RadioID=[INTEGER], APName=[OCTET], PER=[INTEGER]%, RetransmissionRate=[INTEGER]%, APID=[INTEGER], NoiseFloor=[INTEGER]dBm, Reason=[OCTET], BadChannel=[INTEGER], InterferenceRate=[INTEGER]).

Radio signal environment deteriorates.

Attribute

Alarm ID

Alarm Severity

Alarm Type

303046772

Warning

equipmentAlarm

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.

PER

Indicates the packet error rate on the wireless-side interface.

RetransmissionRate

Indicates the retransmission rate of a radio.

APID

Indicates the AP ID.

NoiseFloor

Indicates the noise floor value detected in the current environment.

Reason

Indicates the reason of the alarm.

  • ConflictRate: High retransmission rate

    In this case, you only need to pay attention to the parameter RetransmissionRate. Other parameters with the value 0 can be ignored.

  • Noise: High noise floor

    In this case, you only need to pay attention to the parameter NoiseFloor. Other parameters with the value 0 can be ignored.

  • BadChannel: Channel deterioration

    In this case, you only need to pay attention to the parameter BadChannel. Other parameters with the value 0 can be ignored.

  • InterferenceRate: High interference rate

    In this case, you only need to pay attention to the parameter InterferenceRate. Other parameters with the value 0 can be ignored.

BadChannel

Indicates the bad channel.

InterferenceRate

Indicates the interference rate.

Impact on the System

The frequency band of a radio is changed.

Possible Causes

The radio signal environment deteriorated.

Procedure

  1. Run the display ap neighbor command to view the neighboring radio, and check whether there are APs using the same or neighboring radio.

    • If so, run the channel command to reconfigure a channel or power for this radio to avoid the signal interference. Then go to Step 2.
    • If not, go to Step 3.

  2. Check whether a radio signal environment restoration alarm is generated.

  3. Check whether there are devices that interfere with the radio signal or make noises.

    • If so, remove these devices and then go to Step 4.
    • If not, go to Step 5.

  4. Check whether a radio signal environment restoration alarm is generated.

  5. Collect the alarm information, log information, and configuration information, and then contact technical support personnel.
  6. End.

Related Information

None