Digital Diagnostic Monitoring alarm

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Yvonne
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Posts: 2
Joined: 18 Dec 2013 11:15

Digital Diagnostic Monitoring alarm

Post by Yvonne » 18 Dec 2013 11:24

Hello,
I keep getting a DDMRx Optical Power Low Alarm and a DDMTx Output power High warning Alarm on some nodes in the network. What would be the probable cause of these alarms?

KirkwoodCR
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Posts: 27
Joined: 03 Oct 2011 08:49
Location: Pittsburgh, PA

Re: Digital Diagnostic Monitoring alarm

Post by KirkwoodCR » 25 Dec 2013 11:39

Those alarms are indicating an error on the SFP/XFP
DDMRx Low means the SFP/XFP is receiving a light power lower than the low alarm theshold meaning an issues with the device itself, the fiber run or the SFP/XFP on the other end. Check the DDM stats tab on the node.

DDMTx Output high means the SFP/XFP is transmitting very hot. Could mean a possible SFP/XFP failure at my first guess.

Yvonne
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Posts: 2
Joined: 18 Dec 2013 11:15

Re: Digital Diagnostic Monitoring alarm

Post by Yvonne » 26 Dec 2013 07:34

Thank you very much.

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