the best budget of Link

[abdelaziz@nassiri]

Dera All

I want  to anderstand  if the Tx power value (shown on this picture) is good or can cause any issu with this link

[balaji.bandi]

here is the good document to understand : ( the output you posted doe not show what SFP model here )

http://www.fiber-optic-equipment.com/how-to-understand-tx-power-vs-rx-power-of-a-fiber-transceiver.html

[Tom Randstrom]

Review the data sheet for the optical transceiver you are using. Each transceiver has an Optical Receive Range specification that the signal level needs to meet. Some long reach SFPs can operate properly with an optical signal level as low as -27dbm. Other Transceiver's may require more signal level to work correctly.  

Let us know if you have any more questions. 

[Leo Laohoo · Accepted solution]

The issue is NOT the Tx but the Rx.  Notice the Rx has a "-" value?  That means it is generating minor alarms in the logs. 

Try to shut/no shut the ports (give it a few seconds before enabling the port again) and see if the situation improves.