show interfaces diagnostics optics (SONET)
Syntax
Release Information
Command introduced in Junos OS Release 7.5.
Description
(T Series routers only) For OC192 and OC768 interfaces, display transceiver diagnostics and data alarms.
Options
- so-fpc/pic/port
SONET/SDH interface name.
Additional Information
The transceivers are polled in 1-second intervals for diagnostics data, alarms, and warnings and stores them into memory. The alarms will not cause the links to go down or the LEDs to change color or generate SNMP traps. Changes in alarm and warning status will generate system log messages.
Thresholds that trigger a high alarm, low alarm, high warning, or low warning are set by the transceiver 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 PIC is not working.
In the output fields, when an alarm is On, this indicates an error condition. Alarm Off indicates normal operation.
![]() | Note: The show interfaces diagnostics optics command for optical interfaces does not report the decibel (dBm) value of the received signal if the received power is zero milliwatts (0.0000 mW). |
Required Privilege Level
view
List of Sample Output
show interfaces diagnostics optics (OC768 PIC)show interfaces diagnostics optics (OC192 PICs)
show interfaces diagnostics optics (XFP Optics)
Output Fields
Table 1 lists the output fields for the show interfaces diagnostics optics command when the router is operating with MSA optics. Output fields are listed in the approximate order in which they appear
Table 1: OC768 show interfaces diagnostics optics Output Fields
Field Name | Field Description |
|---|---|
Physical interface | Name of the physical interface. |
Laser bias current | Magnitude of the laser bias power setting current, in milliamperes. This indicator is a software equivalent to the LsBIASMON pin in hardware. |
Laser output power | Laser output power, in milliwatts (mW) and decibels, referenced to 1.0 mW (dBm). This is a software equivalent to the LsPOWMON pin in hardware. |
Receiver signal average optical power | Average received optical power, in mW and dBm. This indicator is a software equivalent to the RxPOWMON pin in hardware. Average optical power is vendor-specific. |
Laser end-of-life alarm | Laser end-of-life alarm: On or Off. |
Laser wavelength alarm | Laser wavelength alarm: On or Off. |
Laser bias current alarm | Laser bias current alarm: On or Off. |
Laser temperature alarm | Laser temperature alarm: On or Off. |
Laser power alarm | Laser power alarm: On or Off. |
Modulator temperature alarm | Modulator temperature alarm: On or Off. Transceivers from some vendors do not support this field. |
Modulator bias alarm | Modulator bias alarm: On or Off. |
Tx multiplexer FIFO error alarm | Transmit multiplexer first in, first out (FIFO) error alarm: On or Off. |
Tx loss of PLL lock alarm | Transmit loss of phase-locked loop (PLL) lock alarm: On or Off. |
Rx loss of average optical power alarm | Receive loss of average optical power alarm: On or Off. |
Rx loss of AC power alarm | Receive loss of AC power alarm: On or Off. Transceivers from some vendors do not support this field. |
Rx loss of PLL lock alarm | Receive loss of phase-locked loop (PLL) lock alarm: On or Off. |
Table 2 lists the output fields for the show interfaces diagnostics optics command when the router is operating with next-generation SONET/SDH SFP optics. Output fields are listed in the approximate order in which they appear.
Table 2: 10-Gigabit Ethernet Next-Generation SONET/SDH SFP Optics show interfaces diagnostics optics Output Fields
Field Name | Field Description |
|---|---|
Physical interface | Name of the physical interface. |
Laser bias current | 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 | Laser output power, in milliwatts (mW) and decibels, referenced to 1.0 mW (dBm). |
Module temperature | Temperature of the XFP optics module, in Celsius and Fahrenheit. |
Module voltage | Internally measured module voltage. |
Receiver signal average optical power | Average received optical power, in mW and dBm. |
Laser bias current high alarm | Laser bias power setting high alarm. Displays on or off. |
Laser bias current low alarm | Laser bias power setting low alarm. Displays on or off. |
Laser bias current high warning | Laser bias power setting high warning. Displays on or off. |
Laser bias current low warning | Laser bias power setting low warning. Displays on or off. |
Laser output power high alarm | Laser output power high alarm. Displays on or off. |
Laser output power low alarm | Laser output power low alarm. Displays on or off. |
Laser output power high warning | Laser output power high warning. Displays on or off. |
Laser output power low warning | Laser output power low warning. Displays on or off. |
Module temperature high alarm | Module temperature high alarm. Displays on or off. |
Module temperature low alarm | Module temperature low alarm. Displays on or off. |
Module temperature high warning | Module temperature high warning. Displays on or off. |
Module temperature low warning | Module temperature low warning. Displays on or off. |
Module voltage high alarm | Module voltage high alarm. Displays on or off. |
Module voltage low alarm | Module voltage low alarm. Displays on or off. |
Module voltage high warning | Module voltage high warning . Displays on or off. |
Module voltage low warning | Module voltage high warning . Displays on or off. |
Laser rx power high alarm | Receive laser power high alarm. Displays on or off. |
Laser rx power low alarm | Receive laser power low alarm. Displays on or off. |
Laser rx power high warning | Receive laser power high warning. Displays on or off. |
Laser rx power low warning | Receive laser power low warning. Displays on or off. |
Laser bias current high alarm threshold | Vendor-specified threshold for the laser bias current high alarm: 80.000 mA. |
Laser bias current low alarm threshold | Vendor-specified threshold for the laser bias current low alarm: 2.000 mA. |
Laser bias current high warning threshold | Vendor-specified threshold for the laser bias current high warning: 70.000 mA. |
Laser bias current low warning threshold | Vendor-specified threshold for the laser bias current low warning: 4.000 mA. |
Laser output power high alarm threshold | Vendor-specified threshold for the laser output power high alarm: 1.2600 mW or 1.00 dBm. |
Laser output power low alarm threshold | Vendor-specified threshold for the laser output power low alarm: 0.0440 mW or -13.57 dBm. |
Laser output power high warning threshold | Vendor-specified threshold for the laser output power high warning: 0.7950 mW or -1.00 dBm. |
Laser output power low warning threshold | Vendor-specified threshold for the laser output power low warning: 0.0700 mW or -11.55 dBm. |
Module temperature high alarm threshold | Vendor-specified threshold for the module temperature high alarm: 110° C or 230° F. |
Module temperature low alarm threshold | Vendor-specified threshold for the module temperature low alarm: -40° C or -40° F. |
Module temperature high warning threshold | Vendor-specified threshold for the module temperature high warning: 93° C or 199° F. |
Module temperature low warning threshold | Vendor-specified threshold for the module temperature low warning: -30° C or -22° F. |
Module voltage high alarm threshold | Module voltage high alarm threshold: 3.900 v. |
Module voltage low alarm threshold | Module voltage low alarm threshold: 2.700 v. |
Module voltage high warning threshold | Module voltage high warning threshold: 3.700 v. |
Module voltage low warning threshold | Module voltage high warning threshold: 2.900 v. |
Laser rx power high alarm threshold | Vendor-specified threshold for the laser Rx power high alarm: 1.1749 mW or 0.70 dBm. |
Laser rx power low alarm threshold | Vendor-specified threshold for the laser Rx power low alarm: 0.0039 mW or -24.09 dBm. |
Laser rx power high warning threshold | Vendor-specified threshold for the laser Rx power high warning: 0.7942 mW or 1.00 dBm. |
Laser rx power low warning threshold | Vendor-specified threshold for the laser Rx power low warning: 0.0100 mW or -20.00 dBm. |
Table 3 lists the output fields for the show interfaces diagnostics optics command when the router is operating with XFP optics. Output fields are listed in the approximate order in which they appear.
Table 3: XFP Optics show interfaces diagnostics optics Output Fields
Field Name | Field Description |
|---|---|
Physical interface | Name of the physical interface. |
Link | (For 4-port OC192c PIC operating in OC768-over-4xOC192 mode) The link number. Diagnostics and alarms are displayed for each link. |
Laser bias current | 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 | Laser output power, in milliwatts (mW) and decibels, referenced to 1.0 mW (dBm). This is a software equivalent to the LsPOWMON pin in hardware. |
Module temperature | Temperature of the XFP optics module, in Celsius and Fahrenheit. |
Laser rx power | Laser received optical power, in mW and dBm. |
Laser bias current high alarm | Laser bias power setting high alarm. Displays on or off. |
Laser bias current low alarm | Laser bias power setting low alarm. Displays on or off. |
Laser bias current high warning | Laser bias power setting high warning. Displays on or off. |
Laser bias current low warning | Laser bias power setting low warning. Displays on or off. |
Laser output power high alarm | Laser output power high alarm. Displays on or off. |
Laser output power low alarm | Laser output power low alarm. Displays on or off. |
Laser output power high warning | Laser output power high warning. Displays on or off. |
Laser output power low warning | Laser output power low warning. Displays on or off. |
Module temperature high alarm | Module temperature high alarm. Displays on or off. |
Module temperature low alarm | Module temperature low alarm. Displays on or off. |
Module temperature high warning | Module temperature high warning. Displays on or off. |
Module temperature low warning | Module temperature low warning. Displays on or off. |
Laser rx power high alarm | Receive laser power high alarm. Displays on or off. |
Laser rx power low alarm | Receive laser power low alarm. Displays on or off. |
Laser rx power high warning | Receive laser power high warning. Displays on or off. |
Laser rx power low warning | Receive laser power low warning. Displays on or off. |
Module not ready alarm | Module not ready alarm. When on, indicates the module has an operational fault. Displays on or off. |
Module power down alarm | Module power down alarm. When on, module is in a limited power mode, low for normal operation. Displays on or off. |
Tx data not ready alarm | Any condition leading to invalid data on the transmit path. Displays on or off. |
Tx not ready alarm | Any condition leading to invalid data on the transmit path. Displays on or off. |
Tx laser fault alarm | Laser fault condition. Displays on or off. |
Tx CDR loss of lock alarm | Transmit clock and data recovery (CDR) loss of lock. Loss of lock on the transmit side of the CDR. Displays on or off. |
Rx not ready alarm | Any condition leading to invalid data on the receive path. Displays on or off. |
Rx loss of signal alarm | Receive Loss of Signal alarm. When on, indicates insufficient optical input power to the module. Displays on or off. |
Rx CDR loss of lock alarm | Receive CDR loss of lock. Loss of lock on the receive side of the CDR. Displays on or off. |
Laser bias current high alarm threshold | Vendor-specified threshold for the laser bias current high alarm: 130.000 mA. |
Laser bias current low alarm threshold | Vendor-specified threshold for the laser bias current low alarm: 10.000 mA. |
Laser bias current high warning threshold | Vendor-specified threshold for the laser bias current high warning: 120.000 mA. |
Laser bias current low warning threshold | Vendor-specified threshold for the laser bias current low warning: 12.000 mA. |
Laser output power high alarm threshold | Vendor-specified threshold for the laser output power high alarm: 0.8910 mW or -0.50 dBm. |
Laser output power low alarm threshold | Vendor-specified threshold for the laser output power low alarm: 0.2230 mW or -6.52 dBm. |
Laser output power high warning threshold | Vendor-specified threshold for the laser output power high warning: 0.7940 mW or -100 dBm. |
Laser output power low warning threshold | Vendor-specified threshold for the laser output power low warning: 0.2510 mW or -600dBm. |
Module temperature high alarm threshold | Vendor-specified threshold for the module temperature high alarm: 90 °C or 194 °F. |
Module temperature low alarm threshold | Vendor-specified threshold for the module temperature low alarm: -5 °C or 23 °F. |
Module temperature high warning threshold | Vendor-specified threshold for the module temperature high warning: 85 °C or 185 °F. |
Module temperature low warning threshold | Vendor-specified threshold for the module temperature low warning: 0 °C or 32 °F. |
Laser rx power high alarm threshold | Vendor-specified threshold for the laser Rx power high alarm: 1.2589 mW or 1.00 dBm. |
Laser rx power low alarm threshold | Vendor-specified threshold for the laser Rx power low alarm: 0.0323 mW or -14.91 dBm. |
Laser rx power high warning threshold | Vendor-specified threshold for the laser Rx power high warning: 1.1220 mW or 0.50 dBm. |
Laser rx power low warning threshold | Vendor-specified threshold for the laser Rx power low warning: 0.0363 mW or -14.40 dBm. |
Sample Output
show interfaces diagnostics optics (OC768 PIC)
user@host> show interfaces diagnostics optics
so-4/0/0 Physical interface: so-4/0/0 Laser bias current : 79.938 mA Laser output power : 1.592 mW / 2.02 dBm Receiver signal average optical power : 1.3854 mW / 1.42 dBm Laser end-of-life alarm : Off Laser wavelength alarm : Off Laser bias current alarm : Off Laser temperature alarm : Off Laser power alarm : Off Modulator temperature alarm : Off Modulator bias alarm : Off Tx multiplexer FIFO error alarm : Off Tx loss of PLL lock alarm : Off Rx loss of average optical power alarm: Off Rx loss of AC power alarm : Off Rx loss of PLL lock alarm : Off
show interfaces diagnostics optics (OC192 PICs)
user@host> show interfaces diagnostics optics
so-1/0/0 Physical interface: so-1/0/0
Laser bias current : 24.008 mA
Laser output power : 0.2620 mW / -5.82 dBm
Module temperature : 62 degrees C / 144 degrees F
Module voltage : 3.3280 V
Receiver signal average optical power : 0.2685 mW / -5.71 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 : 80.000 mA
Laser bias current low alarm threshold : 2.000 mA
Laser bias current high warning threshold : 70.000 mA
Laser bias current low warning threshold : 4.000 mA
Laser output power high alarm threshold : 1.2600 mW / 1.00 dBm
Laser output power low alarm threshold : 0.0440 mW / -13.57 dBm
Laser output power high warning threshold : 0.7950 mW / -1.00 dBm
Laser output power low warning threshold : 0.0700 mW / -11.55 dBm
Module temperature high alarm threshold : 110 degrees C / 230 degrees F
Module temperature low alarm threshold : -40 degrees C / -40 degrees F
Module temperature high warning threshold : 93 degrees C / 199 degrees F
Module temperature low warning threshold : -30 degrees C / -22 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 : 1.1749 mW / 0.70 dBm
Laser rx power low alarm threshold : 0.0039 mW / -24.09 dBm
Laser rx power high warning threshold : 0.7942 mW / -1.00 dBm
Laser rx power low warning threshold : 0.0100 mW / -20.00 dBm
show interfaces diagnostics optics (XFP Optics)
user@host> show interfaces diagnostics optics
so-7/0/0 Physical interface: so-7/0/0 Link : 0 Laser bias current : 50.776 mA Laser output power : 0.4030 mW / -3.95 dBm Laser temperature : 29.0 degrees C / 84.2 degrees F Laser rx power : 0.4671 mW / -3.31 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 Laser temperature high alarm : Off Laser temperature low alarm : Off Laser temperature high warning : Off Laser temperature 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 Module not ready alarm : Off 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 : Off Rx loss of signal alarm : Off Rx CDR loss of lock alarm : Off Laser bias current high alarm threshold : 130.000 mA Laser bias current low alarm threshold : 10.000 mA Laser bias current high warning threshold : 120.000 mA Laser bias current low warning threshold : 12.000 mA Laser output power high alarm threshold : 0.8910 mW / -0.50 dBm Laser output power low alarm threshold : 0.2230 mW / -6.52 dBm Laser output power high warning threshold : 0.7940 mW / -1.00 dBm Laser output power low warning threshold : 0.2510 mW / -6.00 dBm Laser temperature high alarm threshold : 90.0 degrees C / 194.0 degrees F Laser temperature low alarm threshold : -5.0 degrees C / 23.0 degrees F Laser temperature high warning threshold : 85.0 degrees C / 185.0 degrees F Laser temperature low warning threshold : 0.0 degrees C / 32.0 degrees F Laser rx power high alarm threshold : 1.2589 mW / 1.00 dBm Laser rx power low alarm threshold : 0.0323 mW / -14.91 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 ...

