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show interfaces transport pm

Syntax

Description

Display performance monitoring (PM) and threshold crossing alert (TCA) data for long-haul optics.

Display performance data of coherent optics monitored over a definite time period. The data includes the following:

  • Optical power received and transmitted

  • Module temperature

  • Signal-to-noise ratio of the received data

You collect the data in 15-minute or 1-day time interval.

Options

<category>

all Display information about both optics and OTN
optics Display information only about optics
otn Display information only about OTN

<time period>

all Display information for the current 15-minute interval, the current day, the ninety-six 15-minute intervals, and the previous day.
current Display information only for the current 15-minute interval.
currentday Display information only for the current 24 hours
interval Display information only for the ninety-six 15-minute intervals
previousday Display information only for the previous day.

<interface>

all Display information for all interfaces or only for the specified interface (for example, et-fpc
interface-name Display information for all interfaces or only for the specified interface (for example, et-fpc

Required Privilege Level

view

Output Fields

The following tables lists all possible fields for the show interfaces transport pm command. The fields that appear may vary depending on the platform and software release.

Table 2 lists the output fields for the show interfaces transport pm optics command. Fields are listed in the approximate order in which they appear.

Table 1: show interfaces transport pm Output Fields for Coherent-ZR Optics (400G ZR, 400G ZR-M, 400G ZR-M-HP, and 100G ZR optics)

Field Name

Field Description

Physical interface

Name of the physical interface.

SNMP ifIndex

The SNMP index of the interface.

Current

Applicable only for output of current 15-minute PM data, indicates the time range for which the displayed data was accumulated.

Current day

Applicable only for output of current 1-day PM data, indicates the time range for which the displayed data was accumulated.

Interval

Applicable only for output of previous 15-minute intervals PM data, indicates the interval number and the time range for which the displayed data was accumulated.

Previous day

Applicable only for output of previous 1-day PM data, indicates the time range for which the displayed data was accumulated.

Suspect Flag

Set to True if performance monitoring could not be conducted for part or all of the interval duration, otherwise it is set to False.

Reason

If the suspect flag is set to True, this field provides a reason why the data is considered to be suspect.

PM

Performance monitoring parameter.

CURRENT

The current instantaneous value of the parameter.

MIN

The minimum observed value of the parameter over the interval duration.

MAX

The maximum observed value of the parameter over the interval duration.

AVG

The average observed value of the parameter over the interval duration.

THRESHOLD (MIN)

Threshold setting for low threshold crossing alert monitoring, if applicable.

THRESHOLD (MAX)

Threshold setting for high threshold crossing alert, if applicable

TCA-ENABLED (MIN)

Indicates if the low threshold crossing alert is enabled, if applicable.

TCA-ENABLED (MAX)

Indicates if the high threshold crossing alert is enabled, if applicable.

TCA-RAISED (MIN)

Indicates if the low threshold crossing has occurred during the interval.

TCA-RAISED (MAX)

Indicates if the high threshold crossing alert has occurred during the interval.

Module temperature (Celsius)

The temperature of the optics module.

Supply voltage

Supply voltage

Pre-FEC BER

The bit error ratio of the received signal based on the FEC corrected bits.

Uncorrected FER

The ratio of uncorrectable FEC frames.

SNR

Signal to noise ratio.

Tx power

The transmit laser output power.

Rx total power

The total received optical power on the port.

Rx signal power

The received signal optical power on the port.

Tx bias current(mA)

Bias current of the transmit laser in mA.

Carrier frequency offset (MHz)

Measured carrier frequency offset.

Chromatic dispersion

Residual chromatic dispersion measured.

Differential group delay

Measured differential group delay.

SOPMD

Second order polarization mode dispersion.

PDL

Polarization dispersion loss.

SOP ROC

State of polarization rate of change in krad/sec.

OSNR

Optical signal to noise ratio.

Modulator bias X/I

Modulator bias in %.

Modulator bias X/Q

Modulator bias in %.

Modulator bias Y/I

Modulator bias in %.

Modulator bias Y/Q

Modulator bias in %.

Modulator bias X phase

Modulator bias in %

Modulator bias Y phase

Modulator bias in %.

Q value

Q value in dB.

Q margin

Q value in dB.

Table 2: show interfaces transport pm Output Fields

Field Name

Field Description

Physical interface

Name of the physical interface.

Interval

The 15 minute interval for performance monitoring.

Suspect Flag

Set to True if performance monitoring could not be conducted for part or all of the interval duration, otherwise it is set to False.

Reason

If the suspect flag is set to True, this field provides a reason why the data is considered to be suspect.

COUNT

Measured value.

THRESHOLD

Threshold value set.

TCA-ENABLED

Set to TRUE if enabled.

TCA-RAISED

TRUE if enabled and the value crosses the threshold.

Near End PM

Near end threshold crossing defect trigger. For more information about each trigger, see tca.

Far End PM

Far end threshold crossing defect trigger. For more information about each trigger, see tca.

FEC PM

Forwarding Error Correction (FEC) threshold crossing defect trigger. For more information about each trigger, see tca.

BER PM

BEC threshold crossing defect trigger. For more information about each trigger, see tca.

CURRENT

The current instantaneous value of the parameter.

PM

Performance monitor.

MIN

The minimum observed value of the parameter over the interval duration.

MAX

The maximum observed value of the parameter over the interval duration.

AVG

The average observed value of the parameter over the interval duration.

Lane Chromatic dispersion

Residual chromatic dispersion measured.

Lane differential group delay

Measured differential group delay.

q Value

Measured Quality factor value.

SNR

Signal to noise ratio.

Tx output power

The transmit laser output power.

Rx input power

The received optical power on the port.

Module temperature (Celsius)

The temperature of the optics module.

Tx Laser bias current (0.1mA)

Magnitude of the laser bias power setting current. The laser bias provides direct modulation of laser diodes and modulates currents.

Rx Laser bias current (0.1mA)

Magnitude of the laser bias power setting current.

Carrier frequency offset (MHz)

Measured carrier frequency offset.

Sample Output (Junos OS)

show interfaces transport pm

show interfaces transport pm optics (400G ZR, 400G ZR-M, 400G ZR-M-HP, and 100G ZR optics)

show interfaces transport (MX960 router with MPC3E and 100-Gigabit DWDM OTN MIC)

show interfaces transport pm (MX960 router with MPC3E and 100-Gigabit DWDM OTN MIC)

show interfaces transport (PTX3000 router with 5-port 100-Gigabit DWDM OTN PIC)

show interfaces transport pm optics (PTX3000 router with 5-port 100-Gigabit DWDM OTN PIC)

show interfaces transport pm otn (PTX3000 router with 5-port 100-Gigabit DWDM OTN PIC)

show interfaces transport pm optics (MX10003, MX10008, MX10016, and MX204 routers with QSFP-100GE-DWDM2 transceiver)

Release Information

Command introduced in Junos OS Release 14.2.