Transceiver Performance Monitoring
Transceiver Performance Monitoring Overview
The Transceiver Performance Monitoring and Enhanced Diagnostics enables viewing the Digital Optical Monitoring (DOM) parameters for the optics that support enhanced diagnostics. Use the show commands to view the instantaneous values for various PAM4 parameters such as Signal-To-Noise Ratio, Residual Inter Symbol Interference, PAM4 Level Transition Parameters, and other parameters supported on optics interfaces.
Using the Performance Monitoring feature allows EOS to collect and maintain certain performance statistics over a user-defined time. EOS stores data for two intervals: the current interval and the most recently completed interval. When the current interval ends, EOS saves the data as the previous interval so a new current interval can start, and the old previous interval data discarded.
Configuring Transceiver Performance Monitoring
EOS enables the Digital Optical Monitoring (DOM) on all interfaces and you cannot disable the feature.
switch(config)# performance-monitoring transceiver default
switch(config)# interface Ethernet8/1
switch(config-if-Et8/1)# performance-monitoring transceiver
switch(config)# performance-monitoring period 60s
Thecommand configures the performance monitoring period to 60 seconds across the system. This command supports configuring the performance monitoring period in units of either seconds, minutes, hours or days. For example, use performance-monitoring period 30 minutes to configure the period as 30 minutes, performance-monitoring period 2 hours to configure the period as 2 hours and so on. The default performance-monitoring period is 15 minutes.
Use the no form of these commands to revert the configuration.
100GBASE-FR, 100GBASE-LR and 100GBASE-DR do not have thresholds for enhanced Digital Optical Monitoring (DOM) parameters, so these parameters and their thresholds do not display in the output of show interfaces transceiver dom thresholds command.
switch# show interfaces Ethernet8/1 transceiver dom thresholds
Ch: Channel, mA: milliamperes, dBm: decibels (milliwatts),
C: Celsius, V: Volts, NA or N/A: not applicable.
Ethernet8/1
Last update: 0:00:02 ago
High Alarm High Warn Low Warn Low Alarm
Parameter Ch Value Threshold Threshold Threshold Threshold Unit Indicator
-------------------------------------------------------------------------------------------------
Temperature - 58.87 72.00 65.00 5.00 -2.00 C
Voltage - 3.28 3.56 3.47 3.14 3.04 V
TX bias current 1 83.90 131.00 120.00 35.00 30.00 mA
2 85.30 131.00 120.00 35.00 30.00 mA
Optical TX power 1 -10.51 -6.99 -8.00 -11.00 -12.00 dBm
2 -9.70 -6.99 -8.00 -11.00 -12.00 dBm
Optical RX power 1 -0.99 6.99 6.02 -2.00 -3.01 dBm
Examples
Use the following command to display DOM parameters for a 400GBASE-ZR interface:
switch# show show interfaces Ethernet27/1 transceiver dom
Ch: Channel, N/A: not applicable, TX: transmit, RX: receive
mA: milliamperes, dBm: decibels (milliwatts), C: Celsius, V: Volts
Port 27
Last update: 0:00:03 ago
Value
----------------
Case temperature 65.00 C
Voltage 3.29 V
TX power -8.29 dBm
RX total power -9.13 dBm
RX channel power -9.53 dBm
Pre-FEC BER 6.07e-04
Post-FEC errored frames ratio 0.00e+00
Chromatic dispersion (short link) 2.00 ps/nm
Differential group delay 4.00 ps
SOPMD 34.00 ps^2
Polarization dependent loss 0.60 dB
Received OSNR estimate 36.40 dB
Received ESNR estimate 18.00 dB
Carrier frequency offset 923.00 MHz
SOP rate of change 0.00 krad/s
Laser temperature 52.82 C
Laser frequency 193100.00 GHzUse the following command to display DOM parameters for a 100GBASE-DR interface:
switch# show interfaces Ethernet30/1 transceiver dom
Ch: Channel, N/A: not applicable, TX: transmit, RX: receive
mA: milliamperes, dBm: decibels (milliwatts), C: Celsius, V: Volts
Port 30
Last update: 0:00:00 ago
Value
----------------
Temperature 55.16 C
Voltage 3.37 V
Aggregate TX Power -40.00 dBm
Aggregate RX Power -33.98 dBm
TEC current -32.30 mA
Temperature error 0.01 C
Ethernet30/1 (Channel 1)
TX bias current 0.00 mA
Optical TX power -30.00 dBm
Optical RX power -30.00 dBm
Pre-FEC BER 3.67e-04
Uncorrected BER 0.00e+00
SNR 0.00 dBTransceiver Performance Monitoring
100GBASE-FR, 100GBASE-LR and 100GBASE-DR do not have thresholds of enhanced Digital Optical Monitoring (DOM) parameters, so these parameters and thresholds do not display in the output of CLI command show interfaces transceiver dom thresholds.
switch# show interfaces Ethernet8/1 transceiver dom thresholds
Ch: Channel, mA: milliamperes, dBm: decibels (milliwatts),
C: Celsius, V: Volts, NA or N/A: not applicable.
Ethernet8/1
Last update: 0:00:02 ago
High Alarm High Warn Low Warn Low Alarm
Parameter Ch Value Threshold Threshold Threshold Threshold Unit Indicator
-------------------------------------------------------------------------------------------------
Temperature - 58.87 72.00 65.00 5.00 -2.00 C
Voltage - 3.28 3.56 3.47 3.14 3.04 V
TX bias current 1 83.90 131.00 120.00 35.00 30.00 mA
2 85.30 131.00 120.00 35.00 30.00 mA
Optical TX power 1 -10.51 -6.99 -8.00 -11.00 -12.00 dBm
2 -9.70 -6.99 -8.00 -11.00 -12.00 dBm
Optical RX power 1 -0.99 6.99 6.02 -2.00 -3.01 dBmDisplaying Transceiver Performance Monitoring
Use the show interfaces transceiver dom command to display the Digital Optical Monitoring (DOM) parameters. The outputdisplays parameters most recently read.
switch# show interfaces Ethernet8/1 transceiver dom
Ch: Channel, N/A: not applicable, TX: transmit, RX: receive
mA: milliamperes, dBm: decibels (milliwatts), C: Celsius, V: Volts
Ethernet8/1
Last update: 0:00:03 ago
Parameter Ch Value Unit
-------------------------------------------
Temperature - 58.97 C
Voltage - 3.28 V
TX bias current 1 83.61 mA
2 85.15 mA
Optical TX power 1 -10.60 dBm
2 -9.79 dBm
Optical RX power 1 -0.84 dBm
2 -2.28 dBm
SNR 1 17.46 dB
2 15.89 dB
Residual ISI 1 0.00 ps/nm
2 0.00 ps/nm
Level transitions 1 829.00
2 3055.00
TEC current error 1 -527.60 mA
2 -365.70 mA
Frequency error 1 -0.48 GHz
2 0.00 GHz
Pre-FEC BER - 1.53e-03
Uncorrected BER - 0.00e+00
Use the show interfaces transceiver dom thresholds command to display the Digital Optical Monitoring (DOM) parameters and thresholds. The outputdisplays parameters most recently read.
switch# show interfaces Ethernet8/1 transceiver dom thresholds
Ch: Channel, mA: milliamperes, dBm: decibels (milliwatts),
C: Celsius, V: Volts, NA or N/A: not applicable.
Ethernet8/1
Last update: 0:00:02 ago
High Alarm High Warn Low Warn Low Alarm
Parameter Ch Value Threshold Threshold Threshold Threshold Unit Indicator
-------------------------------------------------------------------------------------------------
Temperature - 58.87 72.00 65.00 5.00 -2.00 C
Voltage - 3.28 3.56 3.47 3.14 3.04 V
TX bias current 1 83.90 131.00 120.00 35.00 30.00 mA
2 85.30 131.00 120.00 35.00 30.00 mA
Optical TX power 1 -10.51 -6.99 -8.00 -11.00 -12.00 dBm
2 -9.70 -6.99 -8.00 -11.00 -12.00 dBm
Optical RX power 1 -0.99 6.99 6.02 -2.00 -3.01 dBm
2 -2.45 6.99 6.02 -2.00 -3.01 dBm WARN
SNR 1 17.46 40.00 39.00 19.00 18.00 dB ALARM
2 15.89 40.00 39.00 19.00 18.00 dB ALARM
Residual ISI 1 0.00 409.60 128.00 -128.00 -409.60 ps/nm
2 0.00 409.60 128.00 -128.00 -409.60 ps/nm
Level transitions 1 812.00 57344.00 53248.00 0.00 0.00
2 3249.00 57344.00 53248.00 0.00 0.00
TEC current error 1 -504.70 409.60 128.00 -128.00 -409.60 mA ALARM
2 -329.50 409.60 128.00 -128.00 -409.60 mA WARN
Frequency error 1 -0.42 5.12 2.56 -2.56 -5.12 GHz
2 -0.06 5.12 2.56 -2.56 -5.12 GHz
Pre-FEC BER - 1.47e-03 1.00e-04 1.00e-05 N/A N/A ALARM
Uncorrected BER - 0.00e+00 0.00e+00 0.00e+00 N/A N/A
The Indicator column in the output above gives an indication of where the value lies with respect to the threshold. No output displays when the parameter falls in the expected range between the Low Warn and High Warn thresholds. If the value becomes greater than or equal to the High Alarm or less than or equal to the Low Alarm, ALARM displays in the output. If the value becomes greater than or equal to the High Warn (but less than the High Alarm) or less than or equal to the Low Warn (but greater than the Low Alarm), WARN displays in the output.
Use the show interfaces transceiver performance-monitoring command to display the performance monitoring statistics from the CLI. This command displays data only if you enable the feature using the configuration command transceiver performance-monitoring.
switch# show interfaces Ethernet8/1 transceiver performance-monitoring
Ch: Channel, N/A: not applicable
Performance monitoring period : 0:15:00
Ethernet8/1
Parameter Ch Value
-------------------------------------------------------------
Current Interval 0
Started - 0:00:12 ago
Last update - 0:00:02 ago
Pre-FEC BER avg - 1.41e-03
Pre-FEC BER high alarm exceeded - 0
Pre-FEC BER high warn exceeded - 0
Pre-FEC BER max - 1.54e-03
Pre-FEC BER min - 5.93e-06
Temperature alarm exceeded - 0
Temperature warn exceeded - 0
Uncorrected BER avg - 0.00e+00
Uncorrected BER high alarm exceeded - 0
Uncorrected BER high warn exceeded - 0
Uncorrected BER max - 0.00e+00
Uncorrected BER min - 0.00e+00
Interval 1
Started - 0:15:13 ago
Last update - 0:00:12 ago
Pre-FEC BER avg - 1.53e-03
Pre-FEC BER high alarm exceeded - 0
Pre-FEC BER high warn exceeded - 0
Pre-FEC BER max - 1.74e-03
Pre-FEC BER min - 3.11e-05
Temperature alarm exceeded - 0
Temperature warn exceeded - 0
Uncorrected BER avg - 0.00e+00
Uncorrected BER high alarm exceeded - 0
Uncorrected BER high warn exceeded - 0
Uncorrected BER max - 0.00e+00
Uncorrected BER min - 0.00e+00
- Performance Monitoring Period: 0:15:00 - Indicates the length of one Performance Monitoring period. 0:15:00 specifies a period of 15 minutes, the default value for this parameter. The Performance Monitoring period can be configured using the performance-monitoring period configuration command.
- Started: 0:00:12 ago - Indicates the time the host started the performance monitoring interval.
- Last Update: 0:00:02 ago - Indicates the last time the host read the diagnostic parameters from the module. The host samples values every six seconds.
- Pre-FEC BER avg, Uncorrected BER avg - The average The average Bit Error Rate (BER) before Forward Error Correction (FEC) value so far in the indicated performance monitoring interval.
- Pre-FEC BER min, Uncorrected BER min - The minimum BER value so far in the indicated performance monitoring interval.
- Pre-FEC BER max, Uncorrected BER max - The maximum BER value so far in the indicated performance monitoring interval.
- Pre-FEC BER high warn exceeded, Uncorrected BER high warn exceeded, Pre-FEC BER high alarm exceeded, Uncorrected BER high alarm exceeded - The number of times the host read a value which was greater than the indicated threshold. The host reads values and checks exceeded thresholds every six seconds. This provides only an indication of the actual exceeded count.
- Temperature warn exceeded, Temperature alarm exceeded - The number of times the host read a value which was outside the range of the indicated threshold. The host reads values and checks exceeded thresholds every six seconds. This provides only an indication of the actual exceeded count.
The show interfaces transceiver performance-monitoring thresholds command displays the performance monitoring statistics and their thresholds from the CLI. This command only displays data only if the feature has been enabled using the configuration command performance-monitoring transceiver.
switch# show interfaces Ethernet8/1 transceiver performance-monitoring thresholds
Ch: Channel, N/A: not applicable
Performance monitoring period : 0:00:30
Ethernet8/1
High Alarm High Warn Low Warn Low Alarm
Parameter Ch Value Threshold Threshold Threshold Threshold Indicator
--------------------------------------------------------------------------------------------------------------------
Current Interval 0
Started - 0:00:26 ago
Last update - 0:00:03 ago
Pre-FEC BER avg - 1.41e-03 1.00e-04 1.00e-05 N/A N/A ALARM
Pre-FEC BER high alarm exceeded - 0 N/A N/A N/A N/A
Pre-FEC BER high warn exceeded - 0 N/A N/A N/A N/A
Pre-FEC BER max - 1.55e-03 1.00e-04 1.00e-05 N/A N/A ALARM
Pre-FEC BER min - 5.93e-06 1.00e-04 1.00e-05 N/A N/A
Temperature alarm exceeded - 0 N/A N/A N/A N/A
Temperature warn exceeded - 0 N/A N/A N/A N/A
Uncorrected BER avg - 0.00e+00 0.00e+00 0.00e+00 N/A N/A
Uncorrected BER high alarm exceeded - 0 N/A N/A N/A N/A
Uncorrected BER high warn exceeded - 0 N/A N/A N/A N/A
Uncorrected BER max - 0.00e+00 0.00e+00 0.00e+00 N/A N/A
Uncorrected BER min - 0.00e+00 0.00e+00 0.00e+00 N/A N/A
Interval 1
Started - 0:00:57 ago
Last update - 0:00:26 ago
Pre-FEC BER avg - 1.53e-03 1.00e-04 1.00e-05 N/A N/A ALARM
Pre-FEC BER high alarm exceeded - 0 N/A N/A N/A N/A
Pre-FEC BER high warn exceeded - 0 N/A N/A N/A N/A
Pre-FEC BER max - 1.74e-03 1.00e-04 1.00e-05 N/A N/A ALARM
Pre-FEC BER min - 3.11e-05 1.00e-04 1.00e-05 N/A N/A WARN
Temperature alarm exceeded - 0 N/A N/A N/A N/A
Temperature warn exceeded - 0 N/A N/A N/A N/A
Uncorrected BER avg - 0.00e+00 0.00e+00 0.00e+00 N/A N/A
Uncorrected BER high alarm exceeded - 0 N/A N/A N/A N/A
Uncorrected BER high warn exceeded - 0 N/A N/A N/A N/A
Uncorrected BER max - 0.00e+00 0.00e+00 0.00e+00 N/A N/A
Uncorrected BER min - 0.00e+00 0.00e+00 0.00e+00 N/A N/A
The following output only displays data for the datapath primary lanes nested under the configured Ethernet interface for the transceiver. The output lists the lanes under the header,index, since the lanes can represent either a datapath, electrical lane, or optical channel for each parameter.
switch# show interfaces Ethernet25/1 transceiver performance-monitoring
Performance monitoring period : 0:00:30
Current system time: Thu Jul 13 15:41:16 2023
Port Ethernet25
Parameter Value Unit
-----------------------------------------------------------------
Current Interval
Started 0:00:02 ago
Last update 0:00:02 ago
RX total power min -40.00 dBm
RX total power max -10.85 dBm
RX total power avg -17.81 dBm
Ethernet25/1
Host pre-FEC BER min 0.00e+00
Host pre-FEC BER max 0.00e+00
Host pre-FEC BER avg 0.00e+00
Host post-FEC errored frames ratio min 0.00
Host post-FEC errored frames ratio max 0.00
Host post-FEC errored frames ratio avg 0.00
TX power min
Channel 0 -43.07 dBm
TX power max
Channel 0 -7.97 dBm
TX power avg
Channel 0 -15.15 dBm
RX channel power min
Channel 0 -40.00 dBm
RX channel power max
Channel 0 -11.17 dBm
RX channel power avg
Channel 0 -18.04 dBm
Media pre-FEC BER min
Channel 0 1.70e-03
Media pre-FEC BER max
Channel 0 1.96e-03
Media pre-FEC BER avg
Channel 0 1.84e-03
Media post-FEC errored frames ratio min
Channel 0 0.00
Media post-FEC errored frames ratio max
Channel 0 0.00
Media post-FEC errored frames ratio avg
Channel 0 0.00
Chromatic dispersion min
Channel 0 0.00 ps/nm
Chromatic dispersion max
Channel 0 0.00 ps/nm
Chromatic dispersion avg
Channel 0 0.00 ps/nm
Differential group delay min
Channel 0 0.00 ps
Differential group delay max
Channel 0 0.00 ps
Differential group delay avg
Channel 0 0.00 ps
SOPMD min
Channel 0 0.00 ps^2
SOPMD max
Channel 0 0.00 ps^2
SOPMD avg
Channel 0 0.00 ps^2
Polarization dependent loss min
Channel 0 0.00 dB
Polarization dependent loss max
Channel 0 0.00 dB
Polarization dependent loss avg
Channel 0 0.00 dB
Received OSNR estimate min
Channel 0 0.00 dB
Received OSNR estimate max
Channel 0 0.00 dB
Received OSNR estimate avg
Channel 0 0.00 dB
Received ESNR estimate min
Channel 0 0.00 dB
Received ESNR estimate max
Channel 0 0.00 dB
Received ESNR estimate avg
Channel 0 0.00 dB
Carrier frequency offset min
Channel 0 0.00 MHz
Carrier frequency offset max
Channel 0 0.00 MHz
Carrier frequency offset avg
Channel 0 0.00 MHz
SOP rate of change min
Channel 0 0.00 krad/s
SOP rate of change max
Channel 0 0.00 krad/s
SOP rate of change avg
Channel 0 0.00 krad/s
Previous Interval
Started 0:00:21 ago
Last update 0:00:02 ago
RX total power min -40.00 dBm
RX total power max -10.85 dBm
RX total power avg -17.81 dBm
Ethernet25/1
Host pre-FEC BER min 0.00e+00
Host pre-FEC BER max 0.00e+00
Host pre-FEC BER avg 0.00e+00
Host post-FEC errored frames ratio min 0.00
Host post-FEC errored frames ratio max 0.00
Host post-FEC errored frames ratio avg 0.00
TX power min
Channel 0 -43.07 dBm
TX power max
Channel 0 -7.97 dBm
TX power avg
Channel 0 -15.15 dBm
RX channel power min
Channel 0 -40.00 dBm
RX channel power max
Channel 0 -11.17 dBm
RX channel power avg
Channel 0 -18.04 dBm
Media pre-FEC BER min
Channel 0 1.70e-03
Media pre-FEC BER max
Channel 0 1.96e-03
Media pre-FEC BER avg
Channel 0 1.84e-03
Media post-FEC errored frames ratio min
Channel 0 0.00
Media post-FEC errored frames ratio max
Channel 0 0.00
Media post-FEC errored frames ratio avg
Channel 0 0.00
Chromatic dispersion min
Channel 0 0.00 ps/nm
Chromatic dispersion max
Channel 0 0.00 ps/nm
Chromatic dispersion avg
Channel 0 0.00 ps/nm
Differential group delay min
Channel 0 0.00 ps
Differential group delay max
Channel 0 0.00 ps
Differential group delay avg
Channel 0 0.00 ps
SOPMD min
Channel 0 0.00 ps^2
SOPMD max
Channel 0 0.00 ps^2
SOPMD avg
Channel 0 0.00 ps^2
Polarization dependent loss min
Channel 0 0.00 dB
Polarization dependent loss max
Channel 0 0.00 dB
Polarization dependent loss avg
Channel 0 0.00 dB
Received OSNR estimate min
Channel 0 0.00 dB
Received OSNR estimate max
Channel 0 0.00 dB
Received OSNR estimate avg
Channel 0 0.00 dB
Received ESNR estimate min
Channel 0 0.00 dB
Received ESNR estimate max
Channel 0 0.00 dB
Received ESNR estimate avg
Channel 0 0.00 dB
Carrier frequency offset min
Channel 0 0.00 MHz
Carrier frequency offset max
Channel 0 0.00 MHz
Carrier frequency offset avg
Channel 0 0.00 MHz
SOP rate of change min
Channel 0 0.00 krad/s
SOP rate of change max
Channel 0 0.00 krad/s
SOP rate of change avg
Channel 0 0.00 krad/sFor debugging purposes, append raw to the command to display all lanes registered by the transceiver EEPROM:
switch# show interfaces Ethernet25/1 transceiver performance-monitoring raw
Index: datapath, electrical lane, optical channel, N/A: not applicable
Performance monitoring period : 0:00:30
Current system time: Thu Jul 13 15:45:11 2023
Port Ethernet25
Parameter Index Value Unit
--------------------------------------------------------------------
Current Interval
Started - 0:00:18 ago
Last update - 0:00:02 ago
RX total power min - -11.07 dBm
RX total power max - -11.05 dBm
RX total power avg - -11.06 dBm
Host pre-FEC BER min 0 0.00e+00
2 0.00e+00
4 0.00e+00
6 0.00e+00
Host pre-FEC BER max 0 0.00e+00
2 0.00e+00
4 0.00e+00
6 0.00e+00
Host pre-FEC BER avg 0 0.00e+00
2 0.00e+00
4 0.00e+00
6 0.00e+00
Host post-FEC errored frames ratio min 0 0.00
2 0.00
4 0.00
6 0.00
Host post-FEC errored frames ratio max 0 0.00
2 0.00
4 0.00
6 0.00
Host post-FEC errored frames ratio avg 0 0.00
2 0.00
4 0.00
6 0.00
TX power min 0 -8.03 dBm
TX power max 0 -8.00 dBm
TX power avg 0 -8.02 dBm
RX channel power min 0 -11.32 dBm
RX channel power max 0 -11.28 dBm
RX channel power avg 0 -11.30 dBm
Media pre-FEC BER min 0 1.78e-03
Media pre-FEC BER max 0 2.05e-03
Media pre-FEC BER avg 0 1.91e-03
Media post-FEC errored frames ratio min 0 0.00
Media post-FEC errored frames ratio max 0 0.00
Media post-FEC errored frames ratio avg 0 0.00
Chromatic dispersion min 0 -3.00 ps/nm
Chromatic dispersion max 0 0.00 ps/nm
Chromatic dispersion avg 0 -1.00 ps/nm
Differential group delay min 0 1.00 ps
Differential group delay max 0 1.00 ps
Differential group delay avg 0 1.00 ps
SOPMD min 0 19.00 ps^2
SOPMD max 0 38.00 ps^2
SOPMD avg 0 28.00 ps^2
Polarization dependent loss min 0 0.40 dB
Polarization dependent loss max 0 0.50 dB
Polarization dependent loss avg 0 0.50 dB
Received OSNR estimate min 0 34.40 dB
Received OSNR estimate max 0 34.40 dB
Received OSNR estimate avg 0 34.40 dB
Received ESNR estimate min 0 16.90 dB
Received ESNR estimate max 0 17.10 dB
Received ESNR estimate avg 0 17.00 dB
Carrier frequency offset min 0 -539.00 MHz
Carrier frequency offset max 0 -324.00 MHz
Carrier frequency offset avg 0 -425.00 MHz
SOP rate of change min 0 0.00 krad/s
SOP rate of change max 0 0.00 krad/s
SOP rate of change avg 0 0.00 krad/s
Previous Interval
Started - 0:00:49 ago
Last update - 0:00:18 ago
RX total power min - -11.07 dBm
RX total power max - -11.05 dBm
RX total power avg - -11.06 dBm
Host pre-FEC BER min 0 0.00e+00
2 0.00e+00
4 0.00e+00
6 0.00e+00
Host pre-FEC BER max 0 0.00e+00
2 0.00e+00
4 0.00e+00
6 0.00e+00
Host pre-FEC BER avg 0 0.00e+00
2 0.00e+00
4 0.00e+00
6 0.00e+00
Host post-FEC errored frames ratio min 0 0.00
2 0.00
4 0.00
6 0.00
Host post-FEC errored frames ratio max 0 0.00
2 0.00
4 0.00
6 0.00
Host post-FEC errored frames ratio avg 0 0.00
2 0.00
4 0.00
6 0.00
TX power min 0 -8.04 dBm
TX power max 0 -8.01 dBm
TX power avg 0 -8.02 dBm
RX channel power min 0 -11.31 dBm
RX channel power max 0 -11.28 dBm
RX channel power avg 0 -11.30 dBm
Media pre-FEC BER min 0 1.70e-03
Media pre-FEC BER max 0 2.04e-03
Media pre-FEC BER avg 0 1.88e-03
Media post-FEC errored frames ratio min 0 0.00
Media post-FEC errored frames ratio max 0 0.00
Media post-FEC errored frames ratio avg 0 0.00
Chromatic dispersion min 0 -3.00 ps/nm
Chromatic dispersion max 0 0.00 ps/nm
Chromatic dispersion avg 0 -1.00 ps/nm
Differential group delay min 0 1.00 ps
Differential group delay max 0 1.00 ps
Differential group delay avg 0 1.00 ps
SOPMD min 0 19.00 ps^2
SOPMD max 0 36.00 ps^2
SOPMD avg 0 28.00 ps^2
Polarization dependent loss min 0 0.30 dB
Polarization dependent loss max 0 0.50 dB
Polarization dependent loss avg 0 0.40 dB
Received OSNR estimate min 0 34.40 dB
Received OSNR estimate max 0 34.40 dB
Received OSNR estimate avg 0 34.40 dB
Received ESNR estimate min 0 16.90 dB
Received ESNR estimate max 0 17.10 dB
Received ESNR estimate avg 0 17.00 dB
Carrier frequency offset min 0 -538.00 MHz
Carrier frequency offset max 0 -338.00 MHz
Carrier frequency offset avg 0 -432.00 MHz
SOP rate of change min 0 0.00 krad/s
SOP rate of change max 0 0.00 krad/s
SOP rate of change avg 0 0.00 krad/s- Performance Monitoring Period: 0:15:00 - Indicates the length of one performance monitoring period. 0:15:00 specifies a period of 15 minutes, the default time period. Use the performance-monitoring period period command to configure the performance monitoring period.
- Started: 0:00:12 ago - Indicates the time that the host started the performance monitoring interval.
- Last Update: 0:00:02 ago - Indicates the last reading of the diagnostic parameter by the host. The host samples data every six (6) seconds.
- Pre-FEC BER avg, Uncorrected BER avg - The average Bit Error Rate (BER) before Forward Error Correction (FEC) value in the indicated performance monitoring interval calculated by the host.
- Pre-FEC BER min, Uncorrected BER min - The minimum BER value in the indicated performance monitoring interval calculated by the host.
- Pre-FEC BER max, Uncorrected BER max - The maximum BER value in the indicated performance monitoring interval calculated by the host.
The show interfaces interface transceiver performance-monitoring thresholds command can be used to display the performance monitoring statistics and thresholds from the CLI. This command displays data only if you enable performance monitoring on the switch.
100G-DWDM2 Interface
switch# show interfaces Ethernet8/1 transceiver performance-monitoring thresholds
Ch: Channel, N/A: not applicable
Performance monitoring period : 0:00:30
Ethernet8/1
High Alarm High Warn Low Warn Low Alarm
Parameter Ch Value Threshold Threshold Threshold Threshold Indicator
--------------------------------------------------------------------------------------------------------------------
Current Interval 0
Started - 0:00:26 ago
Last update - 0:00:03 ago
Pre-FEC BER avg - 1.41e-03 1.00e-04 1.00e-05 N/A N/A ALARM
Pre-FEC BER high alarm exceeded - 0 N/A N/A N/A N/A
Pre-FEC BER high warn exceeded - 0 N/A N/A N/A N/A
Pre-FEC BER max - 1.55e-03 1.00e-04 1.00e-05 N/A N/A ALARM
Pre-FEC BER min - 5.93e-06 1.00e-04 1.00e-05 N/A N/A
Temperature alarm exceeded - 0 N/A N/A N/A N/A
Temperature warn exceeded - 0 N/A N/A N/A N/A
Uncorrected BER avg - 0.00e+00 0.00e+00 0.00e+00 N/A N/A
Uncorrected BER high alarm exceeded - 0 N/A N/A N/A N/A
Uncorrected BER high warn exceeded - 0 N/A N/A N/A N/A
Uncorrected BER max - 0.00e+00 0.00e+00 0.00e+00 N/A N/A
Uncorrected BER min - 0.00e+00 0.00e+00 0.00e+00 N/A N/A
Interval 1
Started - 0:00:57 ago
Last update - 0:00:26 ago
Pre-FEC BER avg - 1.53e-03 1.00e-04 1.00e-05 N/A N/A ALARM
Pre-FEC BER high alarm exceeded - 0 N/A N/A N/A N/A
Pre-FEC BER high warn exceeded - 0 N/A N/A N/A N/A
Pre-FEC BER max - 1.74e-03 1.00e-04 1.00e-05 N/A N/A ALARM
Pre-FEC BER min - 3.11e-05 1.00e-04 1.00e-05 N/A N/A WARN
Temperature alarm exceeded - 0 N/A N/A N/A N/A
Temperature warn exceeded - 0 N/A N/A N/A N/A
Uncorrected BER avg - 0.00e+00 0.00e+00 0.00e+00 N/A N/A
Uncorrected BER high alarm exceeded - 0 N/A N/A N/A N/A
Uncorrected BER high warn exceeded - 0 N/A N/A N/A N/A
Uncorrected BER max - 0.00e+00 0.00e+00 0.00e+00 N/A N/A
Uncorrected BER min - 0.00e+00 0.00e+00 0.00e+00 N/A N/A100Gbase-DR Interface
switch# show interfaces Ethernet20/1 transceiver performance-monitoring thresholds
Ch: Channel, mA: milliamperes, dBm: decibels (milliwatts),
C: Celsius, V: Volts, NA or N/A: not applicable.
Ethernet20/1
High Alarm High Warn Low Warn Low Alarm
Parameter Ch Value Threshold Threshold Threshold Threshold Indicator
--------------------------------------------------------------------------------------------------------------------
Current Interval 0
Started - 0:00:09 ago
Last update - 0:00:00 ago
Pre-FEC BER avg - 5.81e-09 5.12e-19 2.56e-19 N/A N/A ALARM
Pre-FEC BER high alarm exceeded - 8 N/A N/A N/A N/A
Pre-FEC BER high warn exceeded - 0 N/A N/A N/A N/A
Pre-FEC BER max - 6.08e-09 5.12e-19 2.56e-19 N/A N/A ALARM
Pre-FEC BER min - 5.33e-09 5.12e-19 2.56e-19 N/A N/A ALARM
Temperature alarm exceeded - 0 N/A N/A N/A N/A
Temperature warn exceeded - 0 N/A N/A N/A N/A
Uncorrected BER avg - 0.00e+00 2.00e-04 1.00e-04 N/A N/A
Uncorrected BER high alarm exceeded - 0 N/A N/A N/A N/A
Uncorrected BER high warn exceeded - 0 N/A N/A N/A N/A
Uncorrected BER max - 0.00e+00 2.00e-04 1.00e-04 N/A N/A
Uncorrected BER min - 0.00e+00 2.00e-04 1.00e-04 N/A N/A
Interval 1
Started - 0:00:39 ago
Last update - 0:00:09 ago
Pre-FEC BER avg - 6.01e-09 5.12e-19 2.56e-19 N/A N/A ALARM
Pre-FEC BER high alarm exceeded - 25 N/A N/A N/A N/A
Pre-FEC BER high warn exceeded - 0 N/A N/A N/A N/A
Pre-FEC BER max - 6.49e-09 5.12e-19 2.56e-19 N/A N/A ALARM
Pre-FEC BER min - 5.45e-09 5.12e-19 2.56e-19 N/A N/A ALARM
Temperature alarm exceeded - 0 N/A N/A N/A N/A
Temperature warn exceeded - 0 N/A N/A N/A N/A
Uncorrected BER avg - 0.00e+00 2.00e-04 1.00e-04 N/A N/A
Uncorrected BER high alarm exceeded - 0 N/A N/A N/A N/A
Uncorrected BER high warn exceeded - 0 N/A N/A N/A N/A
Uncorrected BER max - 0.00e+00 2.00e-04 1.00e-04 N/A N/A
Uncorrected BER min - 0.00e+00 2.00e-04 1.00e-04 N/A N/A- Pre-FEC BER high warn exceeded
- Uncorrected BER high warn exceeded
- Pre-FEC BER high alarm exceeded
- Uncorrected BER high alarm exceeded
- Temperature warn exceeded
- Temperature alarm exceeded
Indicates the number of times the host read a value outside the configured range. The host reads values and checks exceeded thresholds every six seconds. This only provides an indication of the actual exceeded count.
Transceiver Performance Monitoring Commands
Global Configuration Commands
Interface Configuration Command
Show Commands
performance-monitoring period
The performance-monitoring period command configures Performance Monitoring Period across the system.
The no performance-monitoring period command removes the Performance Monitoring Period configuration from the running-config.
Command Mode
Global Configuration Mode
Command Syntax
performance-monitoring period period
no performance-monitoring period period
Parameter
period - Specify the performance monitoring period in units of either seconds, minutes, hours or days. The default performance-monitoring period is 15 minutes.
Example
switch(config)# performance-monitoring period 60sperformance-monitoring transceiver
The performance-monitoring transceiver command enable Performance Monitoring on a per interface basis.
The no performance-monitoring transceiver command removes the Performance Monitoring configuration from the running-config.
Command Mode
Interface Configuration Mode
Command Syntax
performance-monitoring transceiver
no performance-monitoring transceiver
Example
switch(config)# interface Ethernet8/1
switch(config-if-Et8/1)# performance-monitoring transceiverperformance-monitoring transceiver default
The performance-monitoring transceiver default command enable Performance Monitoring on all interfaces across the system.
The no performance-monitoring transceiver default command removes the Performance Monitoring configuration from the running-config.
Command Mode
Global Configuration Mode
Command Syntax
performance-monitoring transceiver default
no performance-monitoring transceiver default
Example
switch(config)# performance-monitoring transceiver defaultshow interfaces transceiver dom
The show interfaces transceiver dom command displays the Digital Optical Monitoring (DOM) parameters from the CLI. The output displays the most recently read parameters.
Command Mode
Privileged EXEC
Command Syntax
show interfaces interface transceiver dom
Parameter
interface - Specify the Ethernet interface name.
Example
switch# show interfaces Ethernet8/1 transceiver dom
Ch: Channel, N/A: not applicable, TX: transmit, RX: receive
mA: milliamperes, dBm: decibels (milliwatts), C: Celsius, V: Volts
Ethernet8/1
Last update: 0:00:03 ago
Parameter Ch Value Unit
-------------------------------------------
Temperature - 58.97 C
Voltage - 3.28 V
TX bias current 1 83.61 mA
2 85.15 mA
Optical TX power 1 -10.60 dBm
2 -9.79 dBm
Optical RX power 1 -0.84 dBm
2 -2.28 dBm
SNR 1 17.46 dB
2 15.89 dB
Residual ISI 1 0.00 ps/nm
2 0.00 ps/nm
Level transitions 1 829.00
2 3055.00
TEC current error 1 -527.60 mA
2 -365.70 mA
Frequency error 1 -0.48 GHz
2 0.00 GHz
Pre-FEC BER - 1.53e-03
Uncorrected BER - 0.00e+00show interfaces transceiver dom thresholds
The show interfaces transceiver dom thresholds command displays the Digital Optical Monitoring (DOM) parameters andthresholds.
Command Mode
Privileged EXEC
Command Syntax
show interfaces interface transceiver dom thresholds
Parameter
interface - Specify the Ethernet interface name.
Example
switch# show interfaces Ethernet8/1 transceiver dom thresholds
Ch: Channel, mA: milliamperes, dBm: decibels (milliwatts),
C: Celsius, V: Volts, NA or N/A: not applicable.
Ethernet8/1
Last update: 0:00:02 ago
High Alarm High Warn Low Warn Low Alarm
Parameter Ch Value Threshold Threshold Threshold Threshold Unit Indicator
-------------------------------------------------------------------------------------------------
Temperature - 58.87 72.00 65.00 5.00 -2.00 C
Voltage - 3.28 3.56 3.47 3.14 3.04 V
TX bias current 1 83.90 131.00 120.00 35.00 30.00 mA
2 85.30 131.00 120.00 35.00 30.00 mA
Optical TX power 1 -10.51 -6.99 -8.00 -11.00 -12.00 dBm
2 -9.70 -6.99 -8.00 -11.00 -12.00 dBm
Optical RX power 1 -0.99 6.99 6.02 -2.00 -3.01 dBm
2 -2.45 6.99 6.02 -2.00 -3.01 dBm WARN
SNR 1 17.46 40.00 39.00 19.00 18.00 dB ALARM
2 15.89 40.00 39.00 19.00 18.00 dB ALARM
Residual ISI 1 0.00 409.60 128.00 -128.00 -409.60 ps/nm
2 0.00 409.60 128.00 -128.00 -409.60 ps/nm
Level transitions 1 812.00 57344.00 53248.00 0.00 0.00
2 3249.00 57344.00 53248.00 0.00 0.00
TEC current error 1 -504.70 409.60 128.00 -128.00 -409.60 mA ALARM
2 -329.50 409.60 128.00 -128.00 -409.60 mA WARN
Frequency error 1 -0.42 5.12 2.56 -2.56 -5.12 GHz
2 -0.06 5.12 2.56 -2.56 -5.12 GHz
Pre-FEC BER - 1.47e-03 1.00e-04 1.00e-05 N/A N/A ALARM
Uncorrected BER - 0.00e+00 0.00e+00 0.00e+00 N/A N/A
Command Output
The Indicator column in the output above gives an indication of where the value lies with respect to its thresholds. Nothing is shown when the parameter is in the expected range between the Low Warn and High Warn thresholds. If the value is greater than or equal to the High Alarm or less than or equal to the Low Alarm, ALARM is shown. If the value is greater than or equal to the High Warn (but less than the High Alarm) or less than or equal to the Low Warn (but greater than the Low Alarm), WARN is shown.
show interfaces transceiver performance-monitoring
The show interfaces transceiver performance-monitoring command displays the performance monitoring statistics from the CLI. This command displays data only if you enable Performance Monitoring on the switch.
Command Mode
Privileged EXEC
Command Syntax
show interfaces interface transceiver performance-monitoring
Parameter
INTERFACE - Specify the Ethernet interface name.
Example
switch# show interfaces Ethernet8/1 transceiver performance-monitoring
Ch: Channel, N/A: not applicable
Performance monitoring period : 0:15:00
Ethernet8/1
Parameter Ch Value
-------------------------------------------------------------
Current Interval 0
Started - 0:00:12 ago
Last update - 0:00:02 ago
Pre-FEC BER avg - 1.41e-03
Pre-FEC BER high alarm exceeded - 0
Pre-FEC BER high warn exceeded - 0
Pre-FEC BER max - 1.54e-03
Pre-FEC BER min - 5.93e-06
Temperature alarm exceeded - 0
Temperature warn exceeded - 0
Uncorrected BER avg - 0.00e+00
Uncorrected BER high alarm exceeded - 0
Uncorrected BER high warn exceeded - 0
Uncorrected BER max - 0.00e+00
Uncorrected BER min - 0.00e+00
Interval 1
Started - 0:15:13 ago
Last update - 0:00:12 ago
Pre-FEC BER avg - 1.53e-03
Pre-FEC BER high alarm exceeded - 0
Pre-FEC BER high warn exceeded - 0
Pre-FEC BER max - 1.74e-03
Pre-FEC BER min - 3.11e-05
Temperature alarm exceeded - 0
Temperature warn exceeded - 0
Uncorrected BER avg - 0.00e+00
Uncorrected BER high alarm exceeded - 0
Uncorrected BER high warn exceeded - 0
Uncorrected BER max - 0.00e+00
Uncorrected BER min - 0.00e+00
Command Output
Performance Monitoring Period: 0:15:00
This indicates the length of one Performance Monitoring period. 0:15:00 specifies a period of 15 minutes, which is the default value for this parameter. The Performance Monitoring period can be configured using the performance-monitoring period configuration command as described in the Configuration section.
Started: 0:00:12 ago
This indicates the time the host started the performance monitoring interval.
Last Update: 0:00:02 ago
This indicates the last time the host read the diagnostic parameters from the module. The host samples values every six seconds.
Pre-FEC BER avg, Uncorrected BER avg
This is the average value so far in the indicated performance monitoring interval.
Pre-FEC BER min, Uncorrected BER min
This is the minimum value so far in the indicated performance monitoring interval.
Pre-FEC BER max, Uncorrected BER max
This is the maximum value so far in the indicated performance monitoring interval.
Pre-FEC BER high warn exceeded, Uncorrected BER high warn exceeded, Pre-FEC BER high alarm exceeded, Uncorrected BER high alarm exceeded
This is the number of times the host read a value which was greater than the indicated threshold. The host reads values and checks exceeded thresholds every 6 seconds. Please note that this provides only an indication of the actual exceeded count.
Temperature warn exceeded, Temperature alarm exceeded
This is the number of times the host read a value which was outside the range of the indicated threshold. The host reads values and checks exceeded thresholds every six seconds. Note that this provides only an indication of the actual exceeded count.
show interfaces transceiver performance-monitoring thresholds
The show interfaces transceiver performance-monitoring thresholds command displays the performance monitoring statistics and thresholds from the CLI.
Command Mode
Privileged EXEC
Command Syntax
show interfaces interface transceiver performance-monitoring thresholds
Parameter
interface - Specify the Ethernet interface name.
Example
switch#show interfaces Ethernet8/1 transceiver performance-monitoring thresholds
Ch: Channel, N/A: not applicable
Performance monitoring period : 0:00:30
Ethernet8/1
High Alarm High Warn Low Warn Low Alarm
Parameter Ch Value Threshold Threshold Threshold Threshold Indicator
--------------------------------------------------------------------------------------------------------------------
Current Interval 0
Started - 0:00:26 ago
Last update - 0:00:03 ago
Pre-FEC BER avg - 1.41e-03 1.00e-04 1.00e-05 N/A N/A ALARM
Pre-FEC BER high alarm exceeded - 0 N/A N/A N/A N/A
Pre-FEC BER high warn exceeded - 0 N/A N/A N/A N/A
Pre-FEC BER max - 1.55e-03 1.00e-04 1.00e-05 N/A N/A ALARM
Pre-FEC BER min - 5.93e-06 1.00e-04 1.00e-05 N/A N/A
Temperature alarm exceeded - 0 N/A N/A N/A N/A
Temperature warn exceeded - 0 N/A N/A N/A N/A
Uncorrected BER avg - 0.00e+00 0.00e+00 0.00e+00 N/A N/A
Uncorrected BER high alarm exceeded - 0 N/A N/A N/A N/A
Uncorrected BER high warn exceeded - 0 N/A N/A N/A N/A
Uncorrected BER max - 0.00e+00 0.00e+00 0.00e+00 N/A N/A
Uncorrected BER min - 0.00e+00 0.00e+00 0.00e+00 N/A N/A
Interval 1
Started - 0:00:57 ago
Last update - 0:00:26 ago
Pre-FEC BER avg - 1.53e-03 1.00e-04 1.00e-05 N/A N/A ALARM
Pre-FEC BER high alarm exceeded - 0 N/A N/A N/A N/A
Pre-FEC BER high warn exceeded - 0 N/A N/A N/A N/A
Pre-FEC BER max - 1.74e-03 1.00e-04 1.00e-05 N/A N/A ALARM
Pre-FEC BER min - 3.11e-05 1.00e-04 1.00e-05 N/A N/A WARN
Temperature alarm exceeded - 0 N/A N/A N/A N/A
Temperature warn exceeded - 0 N/A N/A N/A N/A
Uncorrected BER avg - 0.00e+00 0.00e+00 0.00e+00 N/A N/A
Uncorrected BER high alarm exceeded - 0 N/A N/A N/A N/A
Uncorrected BER high warn exceeded - 0 N/A N/A N/A N/A
Uncorrected BER max - 0.00e+00 0.00e+00 0.00e+00 N/A N/A
Uncorrected BER min - 0.00e+00 0.00e+00 0.00e+00 N/A N/A