Switching

How wrong with this uplink module? Physical link is Down

Used it to be work and show "UP", but do not know why now it shows "Physical link is Down",  We have try change the Fibre connector and also the ports,  Seems not work.  Is the up-link module bad?

This is a  4G2XG uplink-modle for a EX4200 switch.

Here shows some information.  Who knows can get it work?

ex4200> show interfaces diagnostics optics
Physical interface: xe-0/1/0
Laser bias current : 0.002 mA !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Laser output power : 0.0000 mW / - Inf dBm !!!!!!!!!!!!!!!!!!!!!!!!!!!!
Module temperature : 36 degrees C / 97 degrees F
Module voltage : 3.2320 V
Receiver signal average optical power : 0.0000 mW / - Inf dBm
Laser bias current high alarm : On
Laser bias current low alarm : Off
Laser bias current high warning : On
Laser bias current low warning : Off
Laser output power high alarm : Off
Laser output power low alarm : On
Laser output power high warning : Off
Laser output power low warning : On
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 : Off
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 : 10.500 mA
Laser bias current low alarm threshold : 2.500 mA
Laser bias current high warning threshold : 10.500 mA
Laser bias current low warning threshold : 2.500 mA
Laser output power high alarm threshold : 2.0000 mW / 3.01 dBm
Laser output power low alarm threshold : 0.1260 mW / -9.00 dBm
Laser output power high warning threshold : 0.7900 mW / -1.02 dBm
Laser output power low warning threshold : 0.3170 mW / -4.99 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 : 3.600 V
Module voltage low alarm threshold : 3.000 V
Module voltage high warning threshold : 3.460 V
Module voltage low warning threshold : 3.130 V
Laser rx power high alarm threshold : 0.0000 mW / - Inf dBm
Laser rx power low alarm threshold : 0.0000 mW / - Inf dBm
Laser rx power high warning threshold : 0.0000 mW / - Inf dBm
Laser rx power low warning threshold : 0.0000 mW / - Inf dBm

From remote side it is a mx80 router, connect to a 10G build-in XFP port.

MX80> show interfaces diagnostics optics xe-0/0/2
Physical interface: xe-0/0/2
Laser bias current : 6.561 mA
Laser output power : 0.5460 mW / -2.63 dBm
Module temperature : 36 degrees C / 96 degrees F
Laser rx power : 0.0001 mW / -40.04 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
Laser rx power high alarm : Off
Laser rx power low alarm : On
Laser rx power high warning : Off
Laser rx power low warning : On
Module not ready alarm : On
Module power down alarm : Off
Tx data not ready alarm : Off
Tx not ready alarm : Off
Tx laser fault alarm : Off
Tx CDR loss of lock alarm : Off
Rx not ready alarm : On
Rx loss of signal alarm : On
Rx CDR loss of lock alarm : On
Laser bias current high alarm threshold : 12.000 mA
Laser bias current low alarm threshold : 0.500 mA
Laser bias current high warning threshold : 10.000 mA
Laser bias current low warning threshold : 1.000 mA
Laser output power high alarm threshold : 0.8900 mW / -0.51 dBm
Laser output power low alarm threshold : 0.1650 mW / -7.83 dBm
Laser output power high warning threshold : 0.7940 mW / -1.00 dBm
Laser output power low warning threshold : 0.1860 mW / -7.30 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
Laser rx power high alarm threshold : 1.7783 mW / 2.50 dBm
Laser rx power low alarm threshold : 0.0910 mW / -10.41 dBm
Laser rx power high warning threshold : 1.5849 mW / 2.00 dBm
Laser rx power low warning threshold : 0.1020 mW / -9.91 dBm

Thank you.

Based on your output and the manual page I would say your optic module is bad.  I would try removing and reseating the module just in case that will clear the errors, but this has probably failed.

http://www.juniper.net/techpubs/en_US/junos10.4/topics/reference/command-summary/show-interfaces-diagnostics-optics-ex-series.html

You show low current and power values and the alarm conditions are on.

Laser bias current : 0.002 mA !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Laser output power : 0.0000 mW / - Inf dBm !!!!!!!!!!!!!!!!!!!!!!!!!!!!
Laser bias current high alarm : On
Laser bias current high warning : On
Laser output power low alarm : On
Laser output power low warning : On

Yes,

For the last two days, We just replace the XFP and the MX80 ports,  yesterday, We finally check and replace a  SFP+ connector and then get the link up. A SFP+ connector is bad before we starting using the 10G port of the ex4200.

Thank you very much.