Junos OS Interfaces Command Reference - Juniper Networks

show interfaces diagnostics optics (SONET)
Syntax show interfaces diagnostics optics so-fpc/pic/port
Release Information Command introduced in Junos OS Release 7.5.
Description (M320, T320, T640, and T1600 routers only) For SONET/SDH interfaces that support
optical diagnostics and monitoring, 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
Required Privilege
Level
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.
view
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).
List of Sample Output show interfaces diagnostics optics (OC768 PIC) on page 568
show interfaces diagnostics optics (Multi-rate SONET/SDH PICs with SFP) on page 569
show interfaces diagnostics optics (OC192 PICs with XFP) on page 569
Output Fields Table 97 on page 561 lists the output fields for the show interfaces diagnostics optics
command for OC768 PICs. Output fields are listed in the approximate order in which they
appear.
Table 97: OC768 show interfaces diagnostics optics Output Fields
Field Name
Physical interface
Laser bias current
Field Description
Copyright © 2012, Juniper Networks, Inc.
Name of the physical interface.
Chapter 11: SONET/SDH Interface Operational Mode Commands
Magnitude of the laser bias power setting current, in milliamperes. This indicator is a software equivalent
to the LsBIASMON pin in hardware.
561