Meaning of an ODU_AIS alarm


An ODU_AIS alarm indicates ODU-layer alarm indication signals. When this alarm is generated, the entire ODU channel is unavailable.

Other related questions:
Meanings of the INTRA_OTU_STA_INDI alarm
INTRA_OTU_STA_INDI is an alarm indicating the OTU intra-board 1+1 protection status. It specifies whether the current active channel is faulty and whether protection switching is triggered. The alarm parameters indicate the specific protection switching cause. An INTRA_OTU_PS alarm is generated to switch services from the working channel to the protection channel only when protection switching is triggered by a forcible or manual switching command, or by a fault. 1. Will the alarm be generated when the working channel is faulty and protection switching occurs?—Yes. Both INTRA_OTU_STA_INDI and INTRA_OTU_PS alarms will be generated. 2. Will the alarm be generated when the protection channel is faulty and protection switching does not occur?—Yes, the INTRA_OTU_STA_INDI alarm will be reported. 3. Will the alarm be generated when both the working and protection channels are faulty?—Yes. In this scenario, protection switching does not occur. 4. Will the alarm be generated in forcible protection switching mode?—Yes. The alarm is generated when a forcible switching command is issued and an INTRA_OTU_PS alarm is generated when the forcible protection switching is successful.

Meaning of the alarm indicator on a board
The alarm indicator on the front panel of the board indicates the running status and alarm status of the board.

Explanations for logs and alarms on S series switches
To view the explanations of logs or alarms on S series switches, log in to Huawei Enterprise Product & Service Support , click Switch, and then download the Log Reference and Alarm Handling of your device version.

Server buzzer alarm sound
Currently server buzzer alarm sounds only make sense for the RH2488 V2: Power supply alarm: one long beep. A long beep usually means that a PSU fault occurs, or that two PSUs are present but only one has AC power input. Please check the power supply status and whether the power cable is connected properly. Backplane alarm: one long beep. If this sound is made, check the power supply and signal. RAID controller card alarm: beep once per second. This alarm usually means a RAID controller card or hard disk exception, for example, hard disk fault, RAID disk offline, RAID degrade, or RAID rebuild.

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