show interfaces diagnostics optics

Syntax

Description

Display diagnostics data and alarms for Gigabit Ethernet, 10-Gibabit Ethernet, and QSFP+ optical transceivers installed in a QFX Series product. 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.

Required Privilege Level

view

Output Fields

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, the 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.