Receive power warnings on Te 1/5/2 and Te1/5/13

[ziqex]

Hello everyone, 

There are some alerts displayed on two ports  of Cisco C6880-X-LE 
Te1/5/2 and Te1/5/13.

After running #sh int te transceiver details 

Optical Receive Power (dBm)

Te1/5/13 -18.8

Te1/5/2  -14.9

I have read that the threshold is -9.9.

Could you please provide any advice how to resolve the issue. Thank you.

[mlund · Accepted solution]

Hi

This is because the signal received is too week.

The reason can be that the cables are not clean enogh, try to disconnect all cables and clean them properly.

The cables can be too long for the sfp that is used, try to change sfp to a stronger one. There is limitation on how far a certain type of sfp can send light without degredation.

The cables can be damaged, try other cables.

The cables can be of wrong type, verify what cables should be used with the sfp that is used. There are 4 major type of cables, 2 single-mode 7/125 and 10/125 and 2 multi-mode 50/125 65/125

/Mikael