Configuration Guide for Cisco NCS 1004, IOS XR Release 25.x.x

2x100GE-TXP-MXP on OTN-XP card

Updated: July 31, 2026

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This section provides details about the features, port mappings, and hardware interoperability of the 2x100GE-TXP-MXP mode on the OTN-XP card, which multiplexes two 100GE client ports over a single 200G trunk port per slice, introduced in Release 7.8.1.

This topic provides the client-to-trunk port mapping and operational properties of the 2x100GE-TXP-MXP LC mode on the OTN-XP card.

Table 1. Feature History Table
Feature Name	Release Information	Description
NCS1K4-OTN-XP Line Card Interoperability	Cisco IOS XR Release 7.8.1	This feature allows the NCS1K4-OTN-XP card with CFP2-DCO 200G pluggable to interoperate with the NCS2K-400G-XP and NCS4K-4H-OPW-QC2 cards. Using the new 2x100GE-TXP-MXP mode for the OTN-XP card, you can configure 1x100GE or 2x100GE payloads over 100G or 200G DWDM on the line side, respectively. The interoperation improves customer networks' efficiency, performance, and flexibility, allowing 100GE-TXP traffic over 100G DWDM or 2x100GE-MXP traffic over 200G DWDM wavelengths on each slice.

Supported features

2x100GE-TXP-MXP mode supports these features:

PRBS
GCCO
Loopbacks
Laser Squelch
TTI
LLDP
AINS
Modulation type:
- QPSK for 100G
- 16-QAM for 200G

Client-to-trunk port mapping tables

Table 2. 100GE-TXP mapping in 2XTXP-MXP configuration
Slice	Client	Trunk port
0	0	12
1	4	13

Table 3. 2x100GE-MXP mapping in 2XTXP-MXP configuration
Slice	Client	Trunk port
0	0 & 1	12
1	4 & 5	13

Trunk rate―100G and 200G
Trunk optics―CFP2-WDM-DETS-1HL

Interoperation between OTN-XP, NCS 2000, and NCS 4000 cards

The mode supports various interoperability features between GCC0 on the line side and PRBS, including:

PRBS (between OTN-XP Card & NCS4K-4H-OPW-QC2 mapper ODU4s)
GCC0 between trunk interfaces (200G/100G)
TTI
Laser Squelch
LLDP
PRBS
Loopbacks
AINS
GCC0

Note

GCC0 interoperability between the OTN-XP card and 400G-XP-LC/NCS4K-4H-OPW-QC2 line card is not supported on 100G trunk rate in Slice 0.

Hardware module configuration with client-to-trunk mapping

Table 4. Hardware module configuration with client to trunk mapping
OTN-XP card and NCS4K-4H-OPW-QC2 card
	OTN-XP card side			NCS4K-4H-OPW-QC2 card side
Data path	Slice	Trunk Port	Client Port	Slice	Trunk Port	Client Port
100G	0	12	0	N/A	11	0

200G	0	12	0	N/A	11	0
—	0	—	1	N/A	—	6


OTN-XP card and 400G-XP-LC card
	OTN-XP card side			400G-XP-LC side
Data path	Slice	Trunk port	Client port	Slice	Trunk port	Client port
100G	0	12	0	4	12	10

200G	0	12	0	3	12	9
—	—	—	1	4	—	10

Configure the muxponder mode for 2x100GE-TXP-MXP

Set up the OTN-XP card in 2x100GE-TXP-MXP mode so that two 100GE client ports per slice are mapped to a single 200G CFP2 DCO trunk.

Follow these steps to configure muxponder mode for 2x100GE-TXP-MXP:

Procedure

Run these commands to configure the OTN-XP card in the LC mode 2x100GE-TXP-MXP transponder mode.

Example:

This is a sample to configure OTN-XP card in the LC mode 2x100GE-TXP-MXP transponder mode.


RP/0/RP0/CPU0:ios#configure
Fri Feb  4 16:52:18.021 UTC
RP/0/RP0/CPU0:ios(config)#lc-module location 0/2 lcmode 2x100GE-TXP-MXP

This is a sample in which the OTN-XP card is configured with 100G trunk rate on the mxponder-slice 0.


RP/0/RP0/CPU0:ios(config)#hw-module location 0/2 mxponder-slice 0
RP/0/RP0/CPU0:ios(config-hwmod-mxp)#trunk-rate 100G
RP/0/RP0/CPU0:ios(config-hwmod-mxp)#client-port-rate 0 client-type 100GE

This is a sample in which the OTN-XP card is configured with 200G trunk rate on the mxponder-slice 0.


LC slot# 2, client port 0 & 1, and client type 100GE
RP/0/RP0/CPU0:ios(config)#hw-module location 0/2 mxponder-slice 0 
RP/0/RP0/CPU0:ios(config-hwmod-mxp)#trunk-rate 200G      
RP/0/RP0/CPU0:ios(config-hwmod-mxp)#client-port-rate 0 client-type 100GE
RP/0/RP0/CPU0:ios(config-hwmod-mxp)#client-port-rate 1 client-type 100GE

This is a sample in which the OTN-XP card is configured with 200G trunk rate on the mxponder-slice 1.


LC slot# 2, client port 0 & 1, and client type 100GE
RP/0/RP0/CPU0:ios(config)#hw-module location 0/2 mxponder-slice 1 
RP/0/RP0/CPU0:ios(config-hwmod-mxp)#trunk-rate 200G      
RP/0/RP0/CPU0:ios(config-hwmod-mxp)#client-port-rate 4 client-type 100GE
RP/0/RP0/CPU0:ios(config-hwmod-mxp)#client-port-rate 5 client-type 100GE

Run the commit command to save and apply the 2x100GE-TXP-MXP configuration.

Example:

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

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

Example:

This is a sample to verify the OTN-XP card in the 2x100GE-TXP-MXP transponder mode.


RP/0/RP0/CPU0:ios#sh lc-module location 0/0 lcmode 
Sat Nov 12 22:58:47.917 UTC

Node    Lcmode_Supported    Owner    Running                Configured
--------------------------------------------------------------------------------
0/0     Yes                 CLI      2x100GE-TXP-MXP           2x100GE-TXP-MXP

This is a sample to verify the OTN-XP card can be verified with 100G trunk rate on the mxponder-slice 0.


RP/0/RP0/CPU0:ios#sh hw-module location 0/2 mxponder-slice 0
Mon Oct 10 14:06:41.807 UTC

Location:             0/2
Slice ID:             0
Client Bitrate:       100GE
Trunk  Bitrate:       100G
Status:               Provisioned
LLDP Drop Enabled:    FALSE
ARP Snoop Enabled:    FALSE
Client Port                     Mapper/Trunk Port          CoherentDSP0/2/0/12  
                                Traffic Split Percentage

HundredGigECtrlr0/2/0/0         ODU40/2/0/12/0                        100

This is a sample to verify the OTN-XP card can be verified with 200G trunk rate on the mxponder-slice 0.


RP/0/RP0/CPU0:ios#sh hw-module location 0/2 mxponder-slice 0
Mon Oct 10 14:06:41.807 UTC

Location:             0/2
Slice ID:             0
Client Bitrate:       100GE
Trunk  Bitrate:       200G
Status:               Provisioned
LLDP Drop Enabled:    FALSE
ARP Snoop Enabled:    FALSE
Client Port                     Mapper/Trunk Port          CoherentDSP0/2/0/12  
                                Traffic Split Percentage

HundredGigECtrlr0/2/0/0         ODU40/2/0/12/0                        100
HundredGigECtrlr0/2/0/1         ODU40/2/0/12/1                        100

This is a sample to verify the OTN-XP card can be verified with 200G trunk rate on the mxponder-slice 1.


RP/0/RP0/CPU0:ios#sh hw-module location 0/2 mxponder-slice 1
Mon Oct 10 14:06:41.807 UTC

Location:             0/2
Slice ID:             1
Client Bitrate:       100GE
Trunk  Bitrate:       200G
Status:               Provisioned
LLDP Drop Enabled:    FALSE
ARP Snoop Enabled:    FALSE
Client Port                     Mapper/Trunk Port          CoherentDSP0/2/0/13  
                                Traffic Split Percentage

HundredGigECtrlr0/2/0/4         ODU40/2/0/13/4                        100
HundredGigECtrlr0/2/0/5         ODU40/2/0/13/5                        100

This is a sample to verify the supported client rates for each trunk rate configured in muxponder slice 0


RP/0/RP0/CPU0:ios#sh hw-module location 0/2 xponder-capabilities mxponder-slice 0
Mon Oct 10 14:32:15.881 UTC

Location: 0/2

Trunk-Port(s): 12

Port Group Restrictions:
Shared-Client-Group-Bandwidth    Shared-Group-Client-Ports
     200G                          0
     200G                          1

Trunk-bandwidth: 100G
Client-port                       Supported client rates
     0                             100GE

Trunk-bandwidth: 200G
Client-port                       Supported client rates
     0                             100GE
     1                             100GE

This is a sample to verify the supported client rates for each trunk rate configured in muxponder slice 1


RP/0/RP0/CPU0:ios#sh hw-module location 0/2 xponder-capabilities mxponder-slice 1
Mon Oct 10 14:32:15.881 UTC

Location: 0/2

Trunk-Port(s): 12

Port Group Restrictions:
Shared-Client-Group-Bandwidth    Shared-Group-Client-Ports
     200G                          4
     200G                          5

Trunk-bandwidth: 100G
Client-port                       Supported client rates
     4                             100GE

Trunk-bandwidth: 200G
Client-port                       Supported client rates
     4                             100GE
     5                             100GE

The OTN-XP card is configured in 2x100GE-TXP-MXP mode. Two 100GE client ports per slice are mapped to a 200G CFP2 DCO trunk.

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