Technical Documentation

show interfaces diagnostics optics

Syntax

show interfaces diagnostics optics interface-name

Release Information

Command introduced in JUNOS Release 10.0 for EX Series switches.

Description

Display diagnostics data and alarms for a Gigabit Ethernet SFP, SFP+, or XFP transceiver installed in an EX3200 and EX4200 switch or a Gigabit Ethernet SFP or SFP+ transceiver installed in the line cards installed in an EX8200 switch. The information provided by this command is known as digital optical monitoring (DOM) information.

Thresholds that trigger a high alarm, low alarm, high warning, or low warning are set by the transponder vendors. Generally, a high alarm or low alarm indicates that the optics module is not operating properly. This information can be used to diagnose why a transceiver is not working.

Options

interface-name — Name of the interface associated with the port in which the transceiver is installed: ge-fpc/pic/port or xe-fpc/pic/port.

Required Privilege Level

view

List of Sample Output

show interfaces diagnostics optics ge-0/1/0 (SFP Transceiver)
show interfaces diagnostics optics xe-0/1/0 (SFP+ Transceiver)
show interfaces diagnostics optics xe-0/1/0 (XFP Transceiver)

Output Fields

Table 1 lists the output fields for the show interfaces diagnostics optics command. Output fields are listed in the approximate order in which they appear.

Table 1: show interfaces diagnostics optics Output Fields

Field Name

Field Description

Physical interface

Displays the name of the physical interface.

Laser bias current

Displays the magnitude of the laser bias power setting current, in milliamperes. The laser bias provides direct modulation of laser diodes and modulates currents.

Laser output power

Displays the laser output power, in milliwatts (mW) and decibels referred to 1.0 mW (dBm).

Module temperature

Displays the temperature, in Celsius and Fahrenheit.

Module voltage

(Not available for XFP transceivers)

Displays the voltage, in Volts.

Laser rx power

(Not available for SFP and SFP+ transceivers)

Displays the laser received optical power, in milliwatts (mW) and decibels referred to 1.0 mW (dBm).

Receiver signal average optical power

(Not available for XFP transceivers)

Displays the receiver signal average optical power, in milliwatts (mW) and decibels referred to 1.0 mW (dBm).

Laser bias current high alarm

Displays whether the laser bias power setting high alarm is On or Off.

Laser bias current low alarm

Displays whether the laser bias power setting low alarm is On or Off.

Laser bias current high warning

Displays whether the laser bias power setting high warning is On or Off.

Laser bias current low warning

Displays whether the laser bias power setting low warning is On or Off.

Laser output power high alarm

Displays whether the laser output power high alarm is On or Off.

Laser output power low alarm

Displays whether the laser output power low alarm is On or Off.

Laser output power high warning

Displays whether the laser output power high warning is On or Off.

Laser output power low warning

Displays whether the laser output power low warning is On or Off.

Module temperature high alarm

Displays whether the module temperature high alarm is On or Off.

Module temperature low alarm

Displays whether the module temperature low alarm is On or Off.

Module temperature high warning

Displays whether the module temperature high warning is On or Off.

Module temperature low warning

Displays whether the module temperature low warning is On or Off.

Module voltage high alarm

(Not available for XFP transceivers)

Displays whether the module voltage high alarm is On or Off.

Module voltage low alarm

(Not available for XFP transceivers)

Displays whether the module voltage low alarm is On or Off.

Module voltage high warning

(Not available for XFP transceivers)

Displays whether the module voltage high warning is On or Off.

Module voltage low warning

(Not available for XFP transceivers)

Displays whether the module voltage low warning is On or Off.

Laser rx power high alarm

Displays whether the receive laser power high alarm is On or Off.

Laser rx power low alarm

Displays whether the receive laser power low alarm is On or Off.

Laser rx power high warning

Displays whether the receive laser power high warning is On or Off.

Laser rx power low warning

Displays whether the receive laser power low warning is On or Off.

Laser bias current high alarm threshold

Displays the vendor-specified threshold for the laser bias current high alarm.

Module not ready alarm

(Not available for SFP and SFP+ transceivers)

Displays whether the module not ready alarm is On or Off. When the output is On, the module has an operational fault.

Module power down alarm

(Not available for SFP and SFP+ transceivers)

Displays whether the module power down alarm is On or Off. When the output is On, module is in a limited power mode, low for normal operation.

Tx data not ready alarm

(Not available for SFP and SFP+ transceivers)

Any condition leading to invalid data on the transmit path. Displays whether the Tx data not ready alarm is On or Off.

Tx not ready alarm

(Not available for SFP and SFP+ transceivers)

Any condition leading to invalid data on the transmit path. Displays whether the Tx not ready alarm is On or Off.

Tx laser fault alarm

(Not available for SFP and SFP+ transceivers)

Laser fault condition. Displays whether the Tx laser fault alarm is On or Off.

Tx CDR loss of lock alarm

(Not available for SFP and SFP+ transceivers)

Transmit clock and data recovery (CDR) loss of lock. Loss of lock on the transmit side of the CDR. Displays whether the Tx CDR loss of lock alarm is On or Off.

Rx not ready alarm

(Not available for SFP and SFP+ transceivers)

Any condition leading to invalid data on the receive path. Displays whether the Rx not ready alarm is On or Off.

Rx loss of signal alarm

(Not available for SFP and SFP+ transceivers)

Receive loss of signal alarm. When on, indicates insufficient optical input power to the module. Displays whether the Rx loss of signal alarm is On or Off.

Rx CDR loss of lock alarm

(Not available for SFP and SFP+ transceivers)

Receive CDR loss of lock. Loss of lock on the receive side of the CDR. Displays whether the Rx CDR loss of lock alarm is On or Off.

Laser bias current low alarm threshold

Displays the vendor-specified threshold for the laser bias current low alarm.

Laser bias current high warning threshold

Displays the vendor-specified threshold for the laser bias current high warning.

Laser bias current low warning threshold

Displays the vendor-specified threshold for the laser bias current low warning.

Laser output power high alarm threshold

Displays the vendor-specified threshold for the laser output power high alarm.

Laser output power low alarm threshold

Displays the vendor-specified threshold for the laser output power low alarm.

Laser output power high warning threshold

Displays the vendor-specified threshold for the laser output power high warning.

Laser output power low warning threshold

Displays the vendor-specified threshold for the laser output power low warning.

Module temperature high alarm threshold

Displays the vendor-specified threshold for the module temperature high alarm.

Module temperature low alarm threshold

Displays the vendor-specified threshold for the module temperature low alarm.

Module temperature high warning threshold

Displays the vendor-specified threshold for the module temperature high warning.

Module temperature low warning threshold

Displays the vendor-specified threshold for the module temperature low warning.

Module voltage high alarm threshold

(Not available for XFP transceivers)

Displays the vendor-specified threshold for the module voltage high alarm.

Module voltage low alarm threshold

(Not available for XFP transceivers)

Displays the vendor-specified threshold for the module voltage low alarm.

Module voltage high warning threshold

(Not available for XFP transceivers)

Displays the vendor-specified threshold for the module voltage high warning.

Module voltage low warning threshold

(Not available for XFP transceivers)

Displays the vendor-specified threshold for the module voltage low warning.

Laser rx power high alarm threshold

Displays the vendor-specified threshold for the laser rx power high alarm.

Laser rx power low alarm threshold

Displays the vendor-specified threshold for the laser rx power low alarm.

Laser rx power high warning threshold

Displays the vendor-specified threshold for the laser rx power high warning.

Laser rx power low warning threshold

Displays the vendor-specified threshold for the laser rx power low warning.

Sample Output

show interfaces diagnostics optics ge-0/1/0 (SFP Transceiver)

user@host> show interfaces diagnostics optics ge-0/1/0
Physical interface: ge-0/1/0
    Laser bias current                        :  5.444 mA
    Laser output power                        :  0.3130 mW / -5.04 dBm
    Module temperature                        :  36 degrees C / 97 degrees F
    Module voltage                            :  3.2120 V
    Receiver signal average optical power     :  0.3840 mW / -4.16 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               :  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   :  15.000 mA
    Laser bias current low alarm threshold    :  1.000 mA
    Laser bias current high warning threshold :  12.000 mA
    Laser bias current low warning threshold  :  2.000 mA
    Laser output power high alarm threshold   :  0.6300 mW / -2.01 dBm
    Laser output power low alarm threshold    :  0.0660 mW / -11.80 dBm
    Laser output power high warning threshold :  0.6300 mW / -2.01 dBm
    Laser output power low warning threshold  :  0.0780 mW / -11.08 dBm
    Module temperature high alarm threshold   :  109 degrees C / 228 degrees F
    Module temperature low alarm threshold    :  -29 degrees C / -20 degrees F
    Module temperature high warning threshold :  103 degrees C / 217 degrees F
    Module temperature low warning threshold  :  -13 degrees C / 9 degrees F
    Module voltage high alarm threshold       :  3.900 V
    Module voltage low alarm threshold        :  2.700 V
    Module voltage high warning threshold     :  3.700 V
    Module voltage low warning threshold      :  2.900 V
    Laser rx power high alarm threshold       :  1.2589 mW / 1.00 dBm
    Laser rx power low alarm threshold        :  0.0100 mW / -20.00 dBm
    Laser rx power high warning threshold     :  0.7939 mW / -1.00 dBm
    Laser rx power low warning threshold      :  0.0157 mW / -18.04 dBm

Sample Output

show interfaces diagnostics optics xe-0/1/0 (SFP+ Transceiver)

user@host> show interfaces diagnostics optics xe-0/1/0
Physical interface: xe-0/1/0
    Laser bias current                        :  4.968 mA
    Laser output power                        :  0.4940 mW / -3.06 dBm
    Module temperature                        :  27 degrees C / 81 degrees F
    Module voltage                            :  3.2310 V
    Receiver signal average optical power     :  0.0000
    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               :  Off
    Module voltage 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
    Laser bias current high alarm threshold   :  10.500 mA
    Laser bias current low alarm threshold    :  2.000 mA
    Laser bias current high warning threshold :  9.000 mA
    Laser bias current low warning threshold  :  2.500 mA
    Laser output power high alarm threshold   :  1.4120 mW / 1.50 dBm
    Laser output power low alarm threshold    :  0.0740 mW / -11.31 dBm
    Laser output power high warning threshold :  0.7070 mW / -1.51 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
    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       :  1.5849 mW / 2.00 dBm
    Laser rx power low alarm threshold        :  0.0407 mW / -13.90 dBm
    Laser rx power high warning threshold     :  0.7943 mW / -1.00 dBm
    Laser rx power low warning threshold      :  0.1023 mW / -9.90 dBm

Sample Output

show interfaces diagnostics optics xe-0/1/0 (XFP Transceiver)

user@host> show interfaces diagnostics optics xe-0/1/0
Physical interface: xe-0/1/0
    Laser bias current                        :  8.029 mA
    Laser output power                        :  0.6430 mW / -1.92 dBm
    Module temperature                        :  4 degrees C / 39 degrees F
    Laser rx power                            :  0.0012 mW / -29.21 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   :  13.000 mA
    Laser bias current low alarm threshold    :  2.000 mA
    Laser bias current high warning threshold :  12.000 mA
    Laser bias current low warning threshold  :  3.000 mA
    Laser output power high alarm threshold   :  0.8310 mW / -0.80 dBm
    Laser output power low alarm threshold    :  0.1650 mW / -7.83 dBm
    Laser output power high warning threshold :  0.7410 mW / -1.30 dBm
    Laser output power low warning threshold  :  0.1860 mW / -7.30 dBm
    Module temperature high alarm threshold   :  90 degrees C / 194 degrees F
    Module temperature low alarm threshold    :  0 degrees C / 32 degrees F
    Module temperature high warning threshold :  85 degrees C / 185 degrees F
    Module temperature low warning threshold  :  0 degrees C / 32 degrees F
    Laser rx power high alarm threshold       :  0.8912 mW / -0.50 dBm
    Laser rx power low alarm threshold        :  0.0912 mW / -10.40 dBm
    Laser rx power high warning threshold     :  0.7943 mW / -1.00 dBm
    Laser rx power low warning threshold      :  0.1023 mW / -9.90 dBm

Published: 2009-10-09