Configure Coherent Probe

Table 1. Feature History

Feature Name

Release Information

Description
DP04QSDD-E26-A1 support Cisco IOS XR Release 25.4.1

The DP04QSDD-E26-A1 pluggable supports 400G ZR coherent probe functionality on the NCS1K14-EDFA2 card. The pluggable is tunable across C band frequency range and serves as a transponder performing probe functionality. The coherent probe provides link tests before provisioning an active service on the Optical fiber.

Additionally, this pluggable allows PRBS monitoring on trunk ports without the need to enable maintenance mode.

DP01QSDD-ZT5-A1 support

 Cisco IOS XR Release 25.1.1

The DP01QSDD-ZT5-A1 QDD pluggable is a coherent probe supported for the EDFA2 card. This pluggable supports C-band with tunable frequency.

You can plug the coherent probe pluggable to establish a link for the first time in DWDM.

DP01QSDD-ZT5-A1 and DP04QSDD-E26-A1 pluggables

The EDFA2 card supports a QSFP-DD pluggable transceiver that generates tunable C-band frequency. You can establish a link for the first time by connecting the pluggable to the coherent probe port.

DP01QSDD-ZT5-A1 pluggable supports these features:

  • Tunable C-band frequency

  • CoherentDSP controller in optics port 7

  • Only ZR trunk mode support

  • Only Hundred Gig trunk rate support

  • OFEC is the only supported Forward Error Correction

  • PRBS support for CoherentDSP

DP04QSDD-E26-A1 pluggable supports these features:

  • Tunable C-band frequency

  • CoherentDSP controller in optics port 7

  • Only ZR trunk mode support

  • Four hundred Gig trunk rate support

  • CFEC is the only supported Forward Error Correction

  • PRBS support for CoherentDSP

Coherent probe on EDFA2 card

The DP01QSDD-ZT5-A1 and DP04QSDD-E26-A1 QDD, a coherent probe that is QSFP-DD MSA-compliant and supported on the EDFA2 card, can be used as a link probe and supports all the C-band channels.

The coherent probe on the NCS1K14-EDFA2 card is provided as optics port 7.

Configure coherent probe on the EDFA2 card


Note

The MEA alarm is raised if the DP01QSDD-ZT5-A1 pluggable is inserted for 400G trunk rate configuration and DP04QSDD-E26-A1 pluggable is inserted for 100G trunk rate configuration.

Use this task to configure coherent probe on the EDFA2 card.

Before you begin

Insert the DP01QSDD-ZT5-A1 or DP04QSDD-E26-A1 pluggable in the PROBE port.

Procedure

Step 1

Use the hw-module location <0/<slot-id>/NXR0> mxponder-slice <slice-number> command to configure the coherent probe, trunk rate, and trunk mode.

Example:

RP/0/RP0/CPU0:ios(config)#hw-module location 0/2/NXR0 mxponder-slice 1
RP/0/RP0/CPU0:ios(config-hwmod-mxp)#trunk-rate 100G
RP/0/RP0/CPU0:ios(config-hwmod-mxp)#trunk-mode ZR

Example:

RP/0/RP0/CPU0:ios(config)#hw-module location 0/2/NXR0 mxponder-slice 1
RP/0/RP0/CPU0:ios(config-hwmod-mxp)#trunk-rate 400G
RP/0/RP0/CPU0:ios(config-hwmod-mxp)#trunk-mode ZR

Use the no hw-module location <0/<slot-id>/NXR0> mxponder-slice <slice-number> command to remove or disable the slice configuration.

Example:


RP/0/RP0/CPU0:ios(config)#no hw-module location 0/2/NXR0 mxponder-slice 1
RP/0/RP0/CPU0:ios(config-hwmod-mxp)#commit

Step 2

Commit the configuration and exit.


RP/0/RP0/CPU0:ios(config-hwmod-mxp)#commit
RP/0/RP0/CPU0:ios(config-hwmod-mxp)#exit
RP/0/RP0/CPU0:ios(config)#exit

Step 3

Run the command show hw-module location 0/<slot-id>/NXR0> mxponder-slice <slice-number> to verify the configuration.

Example:

RP/0/RP0/CPU0:ios#show hw-module location 0/2/NXR0 mxponder-slice 1
Tue Mar 11 01:55:20.764 IST
Location:             0/2/NXR0
Slice ID:             
1
Client Bitrate:       
NONE
Trunk  Bitrate:       
100G
Status:               
Provisioned
Client Port                     Mapper/Trunk Port          CoherentDSP0/2/0/7
                                                            Traffic Split Percentage
NONE                                  NONE                                0


RP/0/RP0/CPU0:ios#show hw-module location 0/2/NXR0 mxponder-slice 1
Tue Mar 11 01:55:20.764 IST
Location:             0/2/NXR0
Slice ID:             
1
Client Bitrate:       
NONE
Trunk  Bitrate:       
400G
Status:               
Provisioned
Client Port                     Mapper/Trunk Port          CoherentDSP0/2/0/7
                                                            Traffic Split Percentage
NONE                                  NONE                                0

Verify Coherent Probe configurations

Use these steps to verify various coherent probe configurations:

Procedure

Step 1

Run the show inventory command to retrieve and display the physical inventory information of the coherent probe port.

Example:

RP/0RP0/CPU0:ios#show inventory location 0/2/NXR0
Tue Mar 11 01:41:39.512 IST
NAME: "0/2/NXR0", DESCR: "NCS 1014 EDFA terminal with equalization”
PID: NCS1K14-EDFA2     , VID: V00, SN: FCB2813B3B3
NAME: "Optics0/2/0/6", DESCR: "Cisco QSFP DD Pluggable Optical Time Domain Reflectometer"
PID: ONS-QSFP-OTDR     , VID: VES1, SN: IIF2814000Y
NAME: "Optics0/2/0/7", DESCR: "Cisco QSFP DD ZT5 Pluggable Optics Module”
PID: DP01QSDD-ZT5-A1   , VID: V01 , SN: ACA282500L2

RP/0RP0/CPU0:ios#show inventory location 0/2/NXR0
NAME: "0/2/NXR0", DESCR: "NCS 1014 EDFA terminal with equalization"
PID: NCS1K14-EDFA2     , VID: V00, SN: FCB2813B3B3

NAME: "Optics0/2/0/5", DESCR: "Cisco SFP GE 1510 OSC Pluggable Optics Module"
PID: ONS-SC-PTP-1510   , VID: V01, SN: MZH2631007X

NAME: "Optics0/2/0/7", DESCR: "Cisco QSFP DD 400G ZR S Pluggable Optics Module"
PID: DP04QSDD-E26-A1   , VID: V01 , SN: 242355007

Step 2

Run the show hw-module location command to verify the coherent probe configuration.

Example:

RP/0/RP0/CPU0:ios#show hw-module location 0/2/NXR0 mxponder-slice 1
Tue Mar 11 01:55:20.764 IST
Location:             0/2/NXR0
Slice ID:             1
Client Bitrate:       NONE
Trunk  Bitrate:       100G
Status:               Provisioned
Client Port                     Mapper/Trunk Port          CoherentDSP0/2/0/7
                                                                        		Traffic Split Percentage
NONE                                  NONE                           	   0


RP/0/RP0/CPU0:ios#show hw-module location 0/2/NXR0 mxponder-slice 1
Tue Mar 11 01:55:20.764 IST
Location:             0/2/NXR0
Slice ID:             1
Client Bitrate:       NONE
Trunk  Bitrate:       400G
Status:               Provisioned
Client Port                     Mapper/Trunk Port          CoherentDSP0/2/0/7
                                                                        		Traffic Split Percentage
NONE                                  NONE                           	   0

Step 3

Run the show running-config command to display provisioned slice and trunk port information. .

Example:


RP/0/RP0/CPU0:ios#show running-config hw-module location 0/2/NXR0
Tue Mar 11 01:55:40.705 IST
hw-module location 0/2/NXR0
 mxponder-slice 1
  trunk-mode ZR
  trunk-rate 100G



RP/0/RP0/CPU0:ios#show running-config hw-module location 0/2/NXR0
Tue Mar 11 01:55:40.705 IST
hw-module location 0/2/NXR0
 mxponder-slice 1
  trunk-mode ZR
  trunk-rate 400G

Step 4

Run the show controllers optics rack/slot/instance/port command to display the optics controller status for coherent probe optics port (port 7).

Example:


RP/0/RP0/CPU0:ios#show controllers optics 0/2/0/7
Tue Mar 11 02:24:28.965 IST
 Controller State: Up
 Transport Admin State: In Service
Laser State: On
LED State: Green
Last link flapped: 00:29:45
Optics Status
         Optics Type:  QSFP-DD DWDM
          DWDM carrier Info: C BAND, MSA ITU Channel=Non-ITU, Frequency=193.4750THz,
         Wavelength=1549.515nm
         Alarm Status:
         -------------
         Detected Alarms: None
         LOS/LOL/Fault Status:
         Alarm Statistics:

         -------------
         HIGH-RX-PWR = 0            LOW-RX-PWR = 2
         HIGH-TX-PWR = 0            LOW-TX-PWR = 2
         HIGH-LBC = 0               HIGH-DGD = 0
         OOR-CD = 0                 OSNR = 2
         WVL-OOL = 0                MEA  = 0
         IMPROPER-REM = 0
         TX-POWER-PROV-MISMATCH = 0
         Laser Bias Current = 0.0 %
         Actual TX Power = -2.57 dBm
         RX Power = -4.18 dBm
         RX Signal Power = -5.35 dBm
         Frequency Offset = 25 MHz

         Performance Monitoring: Enable
THRESHOLD VALUES
         ----------------

         Parameter                 High Alarm  Low Alarm  High Warning  Low Warning
         ------------------------  ----------  ---------  ------------  -----------
         Rx Power Threshold(dBm)          3.0      -30.0           0.0          0.0
         Tx Power Threshold(dBm)          0.0      -16.0           0.0          0.0
         LBC Threshold(mA)                N/A        N/A          0.00         0.00

         LBC High Threshold = 90 %
         Configured Tx Power = -2.50 dBm
         Configured CD High Threshold = 8600 ps/nm
         Configured CD lower Threshold = -8600 ps/nm
         Configured OSNR lower Threshold = 14.00 dB
         Configured DGD Higher Threshold = 40.00 ps
         Baud Rate =  30.0692733990 GBd
         Bits per Symbol = 2.0000000000  bits/symbol
         Modulation Type: QPSK
         Chromatic Dispersion -7 ps/nm
         Configured CD-MIN -2400 ps/nm  CD-MAX 2400 ps/nm
         Polarization Mode Dispersion = 0.0 ps
         Second Order Polarization Mode Dispersion = 176.00 ps^2
         Optical Signal to Noise Ratio = 23.50 dB
         SNR = 21.40 dB
         Polarization Dependent Loss = 0.50 dB
         Polarization Change Rate = 0.00 rad/s
         Differential Group Delay = 0.00 ps
         DAC RATE:  1x1.50
Transceiver Vendor Details

         Form Factor            : QSFP-DD
         Name                   : CISCO-ACACIA
         Part Number            : 10-3655-01
         Rev Number             : A
         Serial Number          : ACA282500L2
         PID                    : DP01QSDD-ZT5-A1
         VID                    : V01
         Firmware Version       : Major.Minor.Build
         Active                 : 70.130.21
         Inactive               : 70.130.21
         Date Code(yy/mm/dd)    : 24/05/05
         Fiber Connector Type: LC
         Otn Application Code: Not Set
         Sonet Application Code: Not Set
         Ethernet Compliance Code: Not set

 Transceiver Temperature : 34 Celsius

 AINS Soak                : None
 AINS Timer               : 0h, 0m
 AINS remaining time      : 0 seconds

RP/0/RP0/CPU0:ios#show controllers optics 0/2/0/7
Tue Mar 11 02:24:28.965 IST
Controller State: Down 

 Transport Admin State: In Service 

 Laser State: On 

 LED State: Red 

 Last link flapped: 00:09:45
 
 Optics Status 

         Optics Type:  QSFP-DD DWDM
         DWDM carrier Info: C BAND, MSA ITU Channel=Non-ITU, Frequency=193.4750THz,
         Wavelength=1549.515nm 

         Alarm Status:
         -------------
         Detected Alarms: None


         LOS/LOL/Fault Status:

         Alarm Statistics:

         -------------
         HIGH-RX-PWR = 0            LOW-RX-PWR = 1          
         HIGH-TX-PWR = 0            LOW-TX-PWR = 1          
         HIGH-LBC = 0               HIGH-DGD = 0          
         OOR-CD = 0                 OSNR = 1          
         WVL-OOL = 0                MEA  = 0          
         IMPROPER-REM = 0          
         TX-POWER-PROV-MISMATCH = 0          
         Laser Bias Current = 0.0 %
         Actual TX Power = -9.11 dBm 
         RX Power = -40.00 dBm 
         RX Signal Power = -40.00 dBm 
         Frequency Offset = 0 MHz 

         Performance Monitoring: Enable 

         THRESHOLD VALUES
         ----------------

         Parameter                 High Alarm  Low Alarm  High Warning  Low Warning
         ------------------------  ----------  ---------  ------------  -----------
         Rx Power Threshold(dBm)          3.0      -23.5           0.0          0.0
         Tx Power Threshold(dBm)          4.0      -16.0           0.0          0.0
         LBC Threshold(mA)                N/A        N/A          0.00         0.00

         LBC High Threshold = 90 % 
         Configured Tx Power = 0.00 dBm 
         Configured CD High Threshold = 2400 ps/nm 
         Configured CD lower Threshold = -2400 ps/nm 
         Configured OSNR lower Threshold = 24.00 dB 
         Configured DGD Higher Threshold = 40.00 ps 
         Baud Rate =  59.8437500000 GBd
         Bits per Symbol = 4.0000000000  bits/symbol 
         Modulation Type: 16QAM 
         Chromatic Dispersion 0 ps/nm 
         Configured CD-MIN -2400 ps/nm  CD-MAX 2400 ps/nm 
         Polarization Mode Dispersion = 0.0 ps 
         Second Order Polarization Mode Dispersion = 0.00 ps^2 
         Optical Signal to Noise Ratio = 0.00 dB 
         SNR = 0.00 dB 
         Polarization Dependent Loss = 0.00 dB 
         Polarization Change Rate = 0.00 rad/s 
         Differential Group Delay = 0.00 ps 
         DAC RATE:  1x1 

 Transceiver Vendor Details

         Form Factor            : QSFP-DD
         Name                   : CISCO-ACACIA    
         Part Number            : 10-3496-01
         Rev Number             : 10
         Serial Number          : 242355007  
         PID                    : DP04QSDD-E26-A1
         VID                    : V01 
         Firmware Version       : Major.Minor.Build
         Active                 : 71.120.8
         Inactive               : 71.110.25
         Date Code(yy/mm/dd)    : 24/06/18
         Fiber Connector Type: LC 
         Otn Application Code: Not Set 
         Sonet Application Code: Not Set 
         Ethernet Compliance Code: Not set 

 Transceiver Temperature : 39 Celsius
 


 AINS Soak                : None 
 AINS Timer               : 0h, 0m
 AINS remaining time      : 0 seconds

Step 5

Run the show controllers coherentDSP rack/slot/instance/port command to display coherentDSP controller status for coherent probe.

Example:

RP/0/RP0/CPU0:ios#show controllers coherentDSP 0/2/0/7
Tue Mar 11 02:41:55.191 IST

Port                                            : CoherentDSP 0/2/0/7
Controller State                                : Up
Last link flapped                               : 00:47:11

Inherited Secondary State                       : Normal
Configured Secondary State                      : Normal
Derived State                                   : In Service
Loopback mode                                   : None
BER Thresholds                                  : SF = 1.0E-5  SD = 1.0E-7
Performance Monitoring                          : Enable
Bandwidth                                       : 100.0Gb/s
Alarm Information:
LOS = 0 LOF = 0 LOM = 0
OOF = 0 OOM = 0 AIS = 0
IAE = 0 BIAE = 0        SF_BER = 0
SD_BER = 0      BDI = 0 TIM = 0
FECMISMATCH = 0 FEC-UNC = 0     FLEXO_GIDM = 0
FLEXO-MM = 0    FLEXO-LOM = 0   FLEXO-RDI = 0
FLEXO-LOF = 0
Detected Alarms                                 : None

Bit Error Rate Information
PREFEC  BER                                     : 1.29E-08
POSTFEC BER                                     : 0.00E+00
Q-Factor                                        : 14.80 dB

Q-Margin                                        : 8.50 dB

OTU TTI Received

FEC mode                                        : O_FEC

Flexo-Mode                                      : Enable
Flexo Details:
        Tx GID                                  : 0
        Rx GID                                  : 0

AINS Soak                                       : None
AINS Timer                                      : 0h, 0m
AINS remaining time                             : 0 seconds



RP/0/RP0/CPU0:ios#show controllers coherentDSP 0/2/0/7
Port                                            : CoherentDSP 0/2/0/7
Controller State                                : Down
Last link flapped                               : 00:11:17

Inherited Secondary State                       : Normal
Configured Secondary State                      : Normal
Derived State                                   : In Service
Loopback mode                                   : None
BER Thresholds                                  : SF = 1.0E-5  SD = 1.0E-7
Performance Monitoring                          : Enable
Bandwidth                                       : 400.0Gb/s
Alarm Information:
LOS = 1 LOF = 0 LOM = 0
OOF = 0 OOM = 0 AIS = 0
IAE = 0 BIAE = 0        SF_BER = 0
SD_BER = 0      BDI = 0 TIM = 0
FECMISMATCH = 0 FEC-UNC = 0     FLEXO_GIDM = 0
FLEXO-MM = 0    FLEXO-LOM = 0   FLEXO-RDI = 0
FLEXO-LOF = 0   
Detected Alarms                                 : LOS 

Bit Error Rate Information
PREFEC  BER                                     : 5.00E-01 
POSTFEC BER                                     : 0.00E+00 
Q-Factor                                        : 0.00 dB 

Q-Margin                                        : 0.00 dB

OTU TTI Received 

FEC mode                                        : C_FEC

Flexo-Mode                                      : Enable
Flexo Details:
        Tx GID                                  : 0
        Rx GID                                  : 0

AINS Soak                                       : None
AINS Timer                                      : 0h, 0m
AINS remaining time                             : 0 seconds

Configure PRBS on EDFA2 card

The EDFA2 card supports PRBS configuration only on Coherent Probe port.

For EDFA2 card, you can configure PRBS only for coherentDSP without setting the secondary admin state of the controllers to maintenance.

Use this task to configure PRBS without maintenance state.

Procedure

Step 1

Enter the controller coherentDSP R/S/I/P command to enter the coherentDSP controller configuration mode.

Example:

RP/0/RP0/CPU0:ios(config)#controller CoherentDSP0/0/0/7

Step 2

Enter the prbs mode {source | sink | source-sink} pattern {pn31 | pn23 | pn15 | pn7} to configure the PRBS mode and pattern.

Example:


RP/0/RP0/CPU0:ios(config-CoDSP)#prbs mode source-sink pattern pn15

Step 3

Commit the changes.

Example:


RP/0/RP0/CPU0:ios(config-CoDSP)#commit

Verify PRBS

Use these steps to verify CoherentDSP controller PRBS details and performance monitoring details.

Procedure

Step 1

Run the show controllers coherentDSP rack/slot/instance/port prbs-details command to display PRBS details configured on a coherentDSP controller.

Example:

RP/0/RP0/CPU0:ios#show controllers coherentDSP 0/2/0/7 prbs-details
Tue Mar 11 03:13:34.425 IST

----------------------PRBS details------------------
PRBS Test              : Enable
PRBS Mode            : Source-Sink
PRBS Pattern          : PN7
PRBS Status             : Locked
PRBS Lock Time(in seconds)        : 1403
PRBS Bit Errors                     	       : 0
PRBS Found Count                         : 1
PRBS Lost Count                             : 0
PRBS Configured Time                   : 11 Mar 02:50:08 (1406 seconds elapsed)
PRBS First Lock Established Time: 11 Mar 02:50:11 (1403 seconds elapsed)
Result Summary                             : PASS

Step 2

Run the show controllers coherentDSP rack/slot/instance/port pm current 30-sec|15-min|24-hours prbsto view the PRBS performance monitoring parameters on a coherentDSP controller.

Example:


RP/0/RP0/CPU0:ios#show controllers coherentDSP 0/2/0/7 pm current 15-min prbs
Tue Mar 11 03:21:31.173 IST
 PRBS in the current interval [03:15:00 - 03:21:31 Tue Mar 11 2025]
 PRBS current bucket type : Valid
 EBC          : 0           Threshold : 0         TCA(enable)  : NO
 FOUND-COUNT  : 0           Threshold : 0         TCA(enable)  : NO
 LOST-COUNT   : 0           Threshold : 0         TCA(enable)  : NO
 FOUND-AT-TS  : NULL
 LOST-AT-TS   : NULL
 CONFIG-PTRN  : PRBS_PATTERN_PN7
 STATUS       : LOCKED
Last clearing of "show controllers OTU" counters neve