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Ethernet Switching

4300-MP Optics question

Saturday

Swapped out 4300-48p with a 4300-48MP yesterday .. Im getting this a log about ever 10 minutes or so..

My google fu is not helping me understand what and why im getting this message. ?  Im going to swap out the SFP Monday with a Juniper SFP just to see if that fixes the issue..  We never seen this log before when we ran the ex4300-48P.. Heck maybe its the new mondule for the 4300-MP..

 

Anyways here is my log if anyone can tell  me about this warning..

Jan 12 10:20:51 rni2 fpc1 sfp-1/2/2 link 2 SFP voltage high warning cleared
Jan 12 10:20:57 rni2 fpc1 sfp-1/2/2 link 2 SFP voltage high warning set

snip show chassis hardware

 

PIC 2 REV 05 650-080740 XS0218490032 4x10G SFP+
Xcvr 2 NON-JNPR SPC191000MG SFP+-10G-LR

 

show interfaces diagnostics optics xe-1/2/2
Physical interface: xe-1/2/2
Laser bias current : 30.838 mA
Laser output power : 0.5870 mW / -2.31 dBm
Module temperature : 27 degrees C / 80 degrees F
Module voltage : 3.4650 V
Laser receiver power : 0.1870 mW / -7.28 dBm
Laser bias current high alarm : Off
Laser bias current low alarm : Off
Laser bias current high warning : Off
Laser bias current low warning : Off
Laser output power high alarm : Off
Laser output power low alarm : Off
Laser output power high warning : Off
Laser output power low warning : Off
Module temperature high alarm : Off
Module temperature low alarm : Off
Module temperature high warning : Off
Module temperature low warning : Off
Module voltage high alarm : Off
Module voltage low alarm : Off
Module voltage high warning : On
Module voltage low warning : Off
Laser rx power high alarm : Off
Laser rx power low alarm : Off
Laser rx power high warning : Off
Laser rx power low warning : Off
Laser bias current high alarm threshold : 80.000 mA
Laser bias current low alarm threshold : 12.000 mA
Laser bias current high warning threshold : 75.000 mA
Laser bias current low warning threshold : 15.000 mA
Laser output power high alarm threshold : 2.2380 mW / 3.50 dBm
Laser output power low alarm threshold : 0.0600 mW / -12.22 dBm
Laser output power high warning threshold : 1.1220 mW / 0.50 dBm
Laser output power low warning threshold : 0.1510 mW / -8.21 dBm
Module temperature high alarm threshold : 75 degrees C / 167 degrees F
Module temperature low alarm threshold : -5 degrees C / 23 degrees F
Module temperature high warning threshold : 70 degrees C / 158 degrees F
Module temperature low warning threshold : 0 degrees C / 32 degrees F
Module voltage high alarm threshold : 3.630 V
Module voltage low alarm threshold : 2.970 V
Module voltage high warning threshold : 3.465 V
Module voltage low warning threshold : 3.135 V
Laser rx power high alarm threshold : 2.2387 mW / 3.50 dBm
Laser rx power low alarm threshold : 0.0145 mW / -18.39 dBm
Laser rx power high warning threshold : 1.1220 mW / 0.50 dBm
Laser rx power low warning threshold : 0.0363 mW / -14.40 dBm

 

2 REPLIES
Ethernet Switching
Solution
Accepted by topic author tgreaser
Monday

Re: 4300-MP Optics question

Saturday

The alarm is from this error record on optic voltage levels

Module voltage high alarm : Off
Module voltage low alarm : Off
Module voltage high warning : On
Module voltage low warning : Off

 

Meaning the optic voltage is above warning level but below the high level.   This could be a problem with either the optic or the slot.  If you have the same optic type in another slot you could rotate them and see if the problem moves with the optic or stays with the port. 

 

This won't be a juniper vs not juniper branded optic issue.  But could indicate a poor quality control on that vendor optic if it is consistent with many from that brand.

 

 

Steve Puluka BSEET - Juniper Ambassador
IP Architect - DQE Communications Pittsburgh, PA (Metro Ethernet & ISP)
http://puluka.com/home
Ethernet Switching

Re: 4300-MP Optics question

Monday

RESOLVED.

I swapped out the optic and the log went away .. Below I show the compairison of the two..  

From my reading over the weekend its a sign the spf+ is going bad , or you need reseat the module .

Like  Steve Puluka suggested im going to test this in my lab gear to see if i should chuck this module or not..  I did not have

the luxury to test at the site .

 

 

New stats GOOD stats.

show interfaces diagnostics optics xe-1/2/2
Physical interface: xe-1/2/2
Laser bias current : 30.758 mA
Laser output power : 0.6260 mW / -2.03 dBm
Module temperature : 29 degrees C / 84 degrees F
Module voltage : 3.4530 V
Laser receiver power : 0.3499 mW / -4.56 dBm

 

OLD stats.

show interfaces diagnostics optics xe-1/2/2
Physical interface: xe-1/2/2
Laser bias current : 30.838 mA
Laser output power : 0.5870 mW / -2.31 dBm
Module temperature : 27 degrees C / 80 degrees F
Module voltage : 3.4650 V