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Cisco Bug: CSCup25222 - Frequent Low Rx Power and warnings on DS-X9448-768K9

Last Modified

Dec 26, 2019

Products (1)

  • Cisco MDS 9000 Series Multilayer Switches

Known Affected Releases

6.2(9)FM(0.72)

Description (partial)

Symptom:
Frequent SFP Low Rx Power warnings and alarms whenever an interface comes up.
<pre>
2017 Mar 30 15:35:29 switchname %PORT-5-IF_UP: %$VSAN 3%$ Interface fc7/21 is up in mode F
2017 Mar 30 15:35:45 switchname %PORT-4-IF_SFP_WARNING: Interface fc7/21, Low Rx Power Warning
2017 Mar 30 15:35:45 switchname %PORT-3-IF_SFP_ALARM: Interface fc7/21, Low Rx Power Alarm
2017 Mar 30 15:45:45 switchname %PORT-4-IF_SFP_WARNING: Interface fc7/21, Low Rx Power Warning cleared
2017 Mar 30 15:45:45 switchname %PORT-3-IF_SFP_ALARM: Interface fc7/21, Low Rx Power Alarm cleared
</pre>

Both the warning and alarm are cleared 10 minutes later.

Conditions:
MDS 9700 with  2/4/8/10/16 Gbps Advanced FC Module DS-X9448-768K9.
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