Description

SNMP OIDs for the 4 lane higher capacity QSFPs such as 100/400G

Solution

OIDs under jnxDomCurrentLaneEntry will gather active Tx/Rx laser power info for the 4-lane higher capacity QSFPs, such as 100/400 G.

Here is a snippet of the logs from a lab node for reference:

 

root@router-re0> show interfaces et-3/1/3 | match snmp 

  Interface index: 334, SNMP ifIndex: 1988

 

For Receive power:

root@router-re0> show interfaces diagnostics optics et-3/1/3 | no-more          

Physical interface: et-3/1/3

 Lane 0

   Laser receiver power                     : 0.679 mW / -1.68 dBm

 Lane 1

   Laser receiver power                     : 0.678 mW / -1.69 dBm

 Lane 2

   Laser receiver power                     : 0.640 mW / -1.94 dBm

 Lane 3

   Laser receiver power                     : 0.619 mW / -2.08 dBm

 

root@router-re0> show snmp mib get 1.3.6.1.4.1.2636.3.60.1.2.1.1.6.1988.0    

jnxDomCurrentLaneRxLaserPower.1988.0 = -167 

labroot@cacophonix-re0> show snmp mib get 1.3.6.1.4.1.2636.3.60.1.2.1.1.6.1988.1    

jnxDomCurrentLaneRxLaserPower.1988.1 = -169 

labroot@cacophonix-re0> show snmp mib get 1.3.6.1.4.1.2636.3.60.1.2.1.1.6.1988.2    

jnxDomCurrentLaneRxLaserPower.1988.2 = -194 

labroot@cacophonix-re0> show snmp mib get 1.3.6.1.4.1.2636.3.60.1.2.1.1.6.1988.3                     

jnxDomCurrentLaneRxLaserPower.1988.3 = -207

 

For Transmit power:

root@router-re0> show interfaces diagnostics optics et-3/1/3 | match "Laser output power"    

 Lane 0

   Laser output power                       : 1.076 mW / 0.32 dBm

Lane 1                      

   Laser output power                       : 1.124 mW / 0.51 dBm

Lane 2

   Laser output power                       : 1.084 mW / 0.35 dBm

Lane 3

   Laser output power                       : 0.878 mW / -0.56 dBm

 

labroot@cacophonix-re0> show snmp mib get 1.3.6.1.4.1.2636.3.60.1.2.1.1.8.1988.0                    

jnxDomCurrentLaneTxLaserOutputPower.1988.0 = 32

labroot@cacophonix-re0> show snmp mib get 1.3.6.1.4.1.2636.3.60.1.2.1.1.8.1988.1    

jnxDomCurrentLaneTxLaserOutputPower.1988.1 = 51

labroot@cacophonix-re0> show snmp mib get 1.3.6.1.4.1.2636.3.60.1.2.1.1.8.1988.2   

jnxDomCurrentLaneTxLaserOutputPower.1988.2 = 35 

labroot@cacophonix-re0> show snmp mib get 1.3.6.1.4.1.2636.3.60.1.2.1.1.8.1988.3   

jnxDomCurrentLaneTxLaserOutputPower.1988.3 = -56

 

Modification History

2025-04-22 : Article Created