sfp power

[bluesea2010]

Hi,

Below is the  sh interfaces transceiver detail  from  a nexus 9k 

Thanks 

My NMS  is always giving sensor warnings,Is there an issue from the below report 

[JimWicks]

Look at the "-" just to the right of 3.09V in the voltage row, which looks to correspond to the "low" for the Warnings.

[Leo Laohoo]

It is the Low Voltage alarm.  The Current Measurement is 3.09V and this falls inside alarm values of 3.00V to 3.09V.  This is why the   "-" (low warning) is there.  

[bluesea2010]

Hi @Leo Laohoo 

Do I need to take any action on this ?

Thanks 

[Leo Laohoo]

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@bluesea2010 wrote:

Do I need to take any action on this ?

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The optics is probably dying and needs replacement.

[Georg Pauwen]

Hello,

on a side note, is that an operational port ? I found the below:

The show interface transceiver details command output:

When the small form-factor pluggable (SFP) port is shut down and the laser is turned off, the value of the Current field in the output will be close to zero and the Tx power value will be at a minimum (close to -40 dBm).
When the SFP port is shutdown and the laser is not turned off, the Current and Tx power values will stay at operational levels. The Rx power value will depend on the behavior of the remote side of the link and the interface status—it can either stay at an operational level, or at a minimum (close to -40 dBm), or N/A.
Note
The output for the show interface transceiver command will vary based on the transceiver type, name, part number, revision, and link length of the device.