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  • 1.  interfaces diagnostics optics via snmp

    Posted 07-03-2015 08:11

     

     

    Hello experts,

    I am having a difficulty finding a right OID or am missing something. So far I have managed to find an OID 1.3.6.1.4.1.2636.3.60.1.1.1.1.5 via Juniper online tool http://contentapps.juniper.net/mib-explorer/search.jsp#object=1.3.6.1.4.1.2636.3.60.1.1.1.1.5&product=Junos+OS&release=12.3R9

     

    So my problem is that not all my Juniper boxes show the information I need. I will try to output here it here.

     

    I have the following boxes:
    MX480 MPC card 12.3R6.6
    MX240 MPC card 12.3R8.7
    MX480 DPC card 12.3R6.6
    MX5 12.1R10.4
    MX5 12.1R10.4

     

    I am able to pull correct information via OID 1.3.6.1.4.1.2636.3.60.1.1.1.1.5 from MX480 MPC card, MX240 MPC card as follow:

     

    MX480 MPC card
    show interfaces xe-4/0/0
    Physical interface: xe-4/0/0, Enabled, Physical link is Up
    Interface index: 167, SNMP ifIndex: 1456


    snmpwalk -v2c -c xxxxxxxx x.x.x.x .1.3.6.1.4.1.2636.3.60.1.1.1.1.5 | grep 1456
    SNMPv2-SMI::enterprises.2636.3.60.1.1.1.1.5.1456 = INTEGER: -161

    show interfaces diagnostics optics xe-4/0/0
    Physical interface: xe-4/0/0
    Laser bias current : 5.748 mA
    Laser output power : 0.6060 mW / -2.18 dBm
    Module temperature : 42 degrees C / 107 degrees F
    Module voltage : 3.3020 V
    Receiver signal average optical power : 0.6906 mW / -1.61 dBm

     

    So as you can see from CLI I am able to see laser rx signal in dbm which is -1.61 dBm and via SNMP as well

     

    BUT from MX480 with DPC card and both MX5 boxes i see the following:

     

    show interfaces xe-0/0/0 

    Physical interface: xe-0/0/0, Enabled, Physical link is Up
    Interface index: 149, SNMP ifIndex: 559

    snmpwalk -v2c -c xxxxxxxx x.x.x.x .1.3.6.1.4.1.2636.3.60.1.1.1.1.5 | grep 559
    SNMPv2-SMI::enterprises.2636.3.60.1.1.1.1.5.559 = INTEGER: 1755


    show interfaces diagnostics optics
    Physical interface: xe-0/0/0
    Laser bias current : 6.004 mA
    Laser output power : 0.5460 mW / -2.63 dBm
    Module temperature : 39 degrees C / 103 degrees F
    Laser rx power : 0.5690 mW / -2.45 dBm

     

    As you can see from CLI I see RX power as -2.45 dBm but via SNMP i get INTEGER: 1755

    I don't understand how INTEGER: 1755 is calculated.
    I have no problems on all boxes pulling via SNMP laser output power.

     

    Any input appreciated

    Many Thanks.



  • 2.  RE: interfaces diagnostics optics via snmp
    Best Answer

     
    Posted 07-05-2015 12:29

    Looks very much like you are hitting PR946758 (resolved in 12.3R3-S10 12.3R7 13.1R5 13.2R4 13.3R2 14.1R1 14.2R1)

     

    Regards,

    Andy

     

     



  • 3.  RE: interfaces diagnostics optics via snmp

    Posted 07-07-2015 04:29

    Thanks, it looks like it.

     

    Regards,

    Parves