ALM-135462942 The optical module is invalid 136196

Description

ENTITYTRAP/3/OPTPWRALM: OID [OID] The optical power exceeds the upper alarm threshold or falls below the lower alarm threshold. (Index=[INTEGER], EntityPhysicalIndex=[INTEGER], PhysicalName="[OCTET]", EntityTrapFaultID=[INTEGER], EntityTrapReasonDescr="[OCTET]")

The receive power of an optical module is too low.

Attribute

Alarm ID	Alarm Severity	Alarm Type
135462942	Minor	Equipment alarm

Parameters

Name	Meaning
OID	Indicates the MIB object ID of the alarm.
Index	Indicates the index.
EntityPhysicalIndex	Indicates the index of the physical entity.
PhysicalName	Indicates the name of the physical entity.
EntityTrapFaultID	Indicates the error code.
EntityTrapReasonDescr	Indicates the description of the alarm cause.

Impact on the System

This alarm does not affect system operating if the interface on which the optical module is installed works properly.

Possible Causes

The receive power of the optical module was too low.

Procedure

Run the display transceiver slot slot-id verbose command in the system view to check whether the receive power Rx Power of the local interface is within the acceptable range.
- If so, collect alarms, logs, and configurations, and contact technical support personnel.
- If not, go to step 2.
Check whether the peer port is physically Up and whether there is no alarm indicating that the transmit power is too low.
- If so, perform an external loopback test on the interface. If the interface is in Up state, perform loopback tests on the nodes along the transmission path to locate the failure point or link. Then check whether the alarm is cleared. If not, go to 3.
- If not, go to step 3.
Check whether the peer port is physically Down and a corresponding alarm is generated, rectify the fault on the peer port.
- If so, repair the pee port. Check whether the alarm is cleared. If not, go to step 5.
- If not, go to step 4.
Test whether the fiber is working normally.
- If so, replace the fiber and check whether the alarm is cleared. If not, go to step 6.
- If not, go to step 5.
Replace the optical module of the local port and check whether the alarm is cleared.
- If so, the alarm handling ends.
- If not, go to step 6.
Collect alarms, logs, and configurations, and contact technical support personnel.