Interface and Hardware Component Configuration Guide for Cisco NCS 540 Series Routers, IOS XR Release 7.7.x

Optics Controllers

Controllers are represented in the rack/slot/instance/port format (r/s/i/p); for example, 0/3/0/1. Each port has an optics controller that is created on startup.

Note

You must shut down the optics controller before you perform any of the following tasks:

Configure the controller
Restore a saved configuration
Upgrade the DSP processor or CFP2 optics module Field Programmable Device (FPD)

Note

When there are dualrate optics on NCS-57C3-MOD-S/-SE-S + NC57-MPA-12L-S, and while configuring lower speed, you may see a few initial link flaps, after that the link stabilizes and no further flaps will be seen.

How to Configure Controllers

This section contains the following procedures:

Configuring Optics Controller

To configure the Optics controller, use the following commands:

Before you begin

You must shut down the optics controller before you perform any of the following tasks:

Configure the controller
Restore a saved configuration

Procedure

	Command or Action	Purpose
Step 1	configure Example: `RP/0/RP0/CPU0:router# configure terminal`	Enters global configuration mode.
Step 2	controller optics `r`/`s`/`i`/`p` Example: `RP/0/RP0/CPU0:router(config)# controller optics 0/3/0/1`	Enters optics controller configuration mode.
Step 3	shutdown Example: `RP/0/RP0/CPU0:router(config-Optics)# shutdown`	Shuts down the optics controller.
Step 4	commit Example: `RP/0/RP0/CPU0:router(config-Optics)# commit`	Saves the configuration changes to the running configuration file and remains within the configuration session.
Step 5	rx-high-threshold `rx-high` Example: `RP/0/RP0/CPU0:router(config-Optics)# rx-high-threshold 200`	Configures the high receive power threshold. The range is -400 to 300 (in the units of 0.1 dBm).
Step 6	tx-high-threshold `tx-high` Example: `RP/0/RP0/CPU0:router(config-Optics)# tx-high-threshold 300`	Configures the high transmit power threshold. The range is -400 to 300 dBm (in the units of 0.1 dBm).
Step 7	no shutdown Example: `RP/0/RP0/CPU0:router(config-Optics)# no shutdown`	Removes the shutdown configuration on the optics controller.
Step 8	commit Example: `RP/0/RP0/CPU0:router(config-Optics)# commit`	Saves the configuration changes to the running configuration file and remains within the configuration session.

Configure Port Mode Speed

To configure the port mode speed, use the following commands:

Before you begin

Ensure that you shut down the controller before you configure the controller or restore a saved configuration.

Procedure

	Command or Action	Purpose
Step 1	configure Example: `RP/0/RP0/CPU0:router# configure`	Enters global configuration mode.
Step 2	controller optics `r`/`s`/`i`/`p` Example: `RP/0/RP0/CPU0:router(config)# controller optics 0/3/0/0`	Enters optics controller configuration mode
Step 3	shutdown Example: `RP/0/RP0/CPU0:router(config-Optics)# shutdown`	Shuts down the optics controller.
Step 4	commit Example: `RP/0/RP0/CPU0:router(config-Optics)# commit`	Saves the configuration changes to the running configuration file and remains within the configuration session.
Step 5	port-mode speed { 100G \| 150G \| 200G } mod { 16qam \| 8qam \|qpsk } fec { 15sdfec \| 15sdfecde \| 25sdfec \| otu7staircase } diff { enable \| disable } Example: `RP/0/RP0/CPU0:router(config-Optics)# port-mode speed 100G mod qpsk fec 15sdfec diff`	Configures the port mode speed.
Step 6	no shutdown Example: `RP/0/RP0/CPU0:router(config-Optics)# no shutdown`	Removes the shutdown configuration on the optics controller.
Step 7	commit Example: `RP/0/RP0/CPU0:router(config-Optics)# commit`	Saves the configuration changes to the running configuration file.

If you need to change the port-mode speed, ensure that you remove the existing port mode speed configuration by entering the no port-mode command. You can then change the port mode speed.

The following example shows how to change the port mode speed to 100Gbps.


RP/0/RP0/CPU0:router# configure
RP/0/RP0/CPU0:router(config)# controller optics 0/3/0/0
RP/0/RP0/CPU0:router(config-Optics)# shutdown
RP/0/RP0/CPU0:router(config-Optics)# commit
RP/0/RP0/CPU0:router(config-Optics)# no port-mode
RP/0/RP0/CPU0:router(config-Optics)# commit
RP/0/RP0/CPU0:router(config-Optics)# port-mode speed 100G mod qpsk fec 15sdfec diff enable
RP/0/RP0/CPU0:router(config-Optics)# commit
RP/0/RP0/CPU0:router(config-Optics)# no shutdown
RP/0/RP0/CPU0:router(config-Optics)# commit
RP/0/RP0/CPU0:router(config-Optics)# exit
RP/0/RP0/CPU0:router(config)#

To modify the default 25Gpbs mode into 10Gbps mode, perform the below configuration:

Before Cisco IOS XR Release 7.5.1:

RP/0/RP0/CPU0:router(config)# hw-module quad 0 location 0/0/CPU0

RP/0/RP0/CPU0:router(config-quad-0x0)# mode 10g

From Cisco IOS XR Release 7.5.1:

RP/0/RP0/CPU0:router(config)# hw-module quad 0 location 0/0/CPU0 instance 1 mode 10g

RP/0/RP0/CPU0:router(config-quad-0x0)# mode 10g

Note

A quad number always starts from 0 to the maximum supported number. The number of quads supported varies from platform to platform and the CLI validates it. For example, the NCS 540 Series Router supports two quads (0 and 1). If you enter X=3, the CLI returns an error.

Here, instance indicates the MPA card instance. It can range from 0-5. For Cisco NCS 540 Series Routers, it is always 0. Whereas, for Cisco NCS 5500 Series Routers, the instance can be between 0-5, adding 1 for every MPA instance. The default value is 0.

Starting with Cisco IOS XR Release 24.2.1, you can configure 50Gpbs mode only on NC-57-48Q2D-S and NC-57-48Q2D-SE-S line cards.

Note

To revert to the default 25Gbps mode, use the no form of the hw-module quad command.

After you configure the port-mode speed, you can configure the following interfaces:

100G – Each optics controller configuration creates a single 100GE port:
- interface HundredGigE r/s/i/p/0 (wherep = CTP2 port 0-5)
  
  0/3/0/0/0
  
  0/3/0/1/0
  
  0/3/0/2/0
  
  0/3/0/3/0
  
  0/3/0/4/0
  
  0/3/0/5/0
200G – Each optics controller configuration creates two 100GE ports:
- interface HundredGigE r/s/i/p/0, r/s/i/p/1 (wherep = CTP2 port 0-5
  
  0/3/0/0/0, 0/3/0/0/1
  
  0/3/0/1/0, 0/3/0/1/1
  
  0/3/0/2/0, 0/3/0/2/1
  
  0/3/0/3/0, 0/3/0/3/1
  
  0/3/0/4/0, 0/3/0/4/1
  
  0/3/0/5/0, 0/3/0/5/1
150G (coupled) – Coupled optics controller configuration creates three 100GE port:
- interface HundredGigE r/s/i/p/0, r/s/i/p/1, r/s/i/p+1/0 (wherep = CTP2 port: 0, 2, 4 [port p and p +1 are coupled])
  
  0/3/0/0/0, 0/3/0/0/1, 0/3/0/1/0
  
  0/3/0/2/0, 0/3/0/2/1, 0/3/0/3/0
  
  0/3/0/4/0, 0/3/0/4/1, 0/3/0/5/0

For more information, see the Configuring Ethernet Interfaces chapter.

Configuring Wavelength

To configure wavelength, use the following commands:

Before you begin

Before configuring the wavelength, use the show controllers opticsr/s/i/p dwdm-carrrier-map command to display the wavelength and channel mapping for optics controllers.
You must shut down the controller before you configure the controller or restore a saved configuration.

Procedure

	Command or Action	Purpose
Step 1	configure Example: `RP/0/RP0/CPU0:router# configure`	Enters global configuration mode.
Step 2	controller optics `r`/`s`/`i`/`p` Example: `RP/0/RP0/CPU0:router(config)# controller optics 0/3/0/1`	Enters optics controller configuration mode.
Step 3	shutdown Example: `RP/0/RP0/CPU0:router(config-Optics)# shutdown`	Shuts down the optics controller.
Step 4	commit Example: `RP/0/RP0/CPU0:router(config-Optics)# commit`	Saves the configuration changes to the running configuration file and remains within the configuration session.
Step 5	dwdm-carrier {100MHz-grid frequency `frequency` } \| {50GHz-grid [ frequency `frequency` \| `channel-number` ] } Example: `RP/0/RP0/CPU0:router(config-Optics)# dwdm-carrier 100MHz-grid frequency 1960875`	Configures the frequency on the trunk port.
Step 6	no shutdown Example: `RP/0/RP0/CPU0:router(config-Optics)# no shutdown`	Removes the shutdown configuration on the optics controller.
Step 7	commit Example: `RP/0/RP0/CPU0:router(config-Optics)# commit`	Saves the configuration changes to the running configuration file and remains within the configuration session.

To configure a DWDM carrier with the required frequency:

RP/0/RP0/CPU0:router#config
RP/0/RP0/CPU0:router(config)#controller Optics0/3/0/0
RP/0/RP0/CPU0:router(config-Optics)#dwdm-carrier
RP/0/RP0/CPU0:router(config-Optics)#dwdm-carrier 100MHz-grid
RP/0/RP0/CPU0:router(config-Optics)#dwdm-carrier 100MHz-grid frequency
RP/0/RP0/CPU0:router(config-Optics)#dwdm-carrier 100MHz-grid frequency 1960625

The output of show run controller optics 0/3/0/0 command is:

RP/0/RP0/CPU0:router#show run controller optics 0/3/0/0
Wed Nov  6 13:47:33.178 UTC
controller Optics0/3/0/0
transmit-power -7
port-mode speed 100G mod qpsk fec 25sdfec diff disable
dwdm-carrier 100MHz-grid frequency 1960625

Note

When you bring up the local optics controller, you might briefly see transient loss of signal (LOS) alarms on the console. This behavior might be observed during the initial tuning of the channel.


PKT_INFRA-FM-2-FAULT_CRITICAL : ALARM_CRITICAL :LOS-P :DECLARE :CoherentDSP0/3/0/1: 
PKT_INFRA-FM-2-FAULT_CRITICAL : ALARM_CRITICAL :LOS-P :CLEAR :CoherentDSP0/3/0/1:

During the laser-on process, you might briefly see transient loss of line (LOL) alarms on the console. This alarm is cleared when the laser-on process is complete.


PKT_INFRA-FM-3-FAULT_MAJOR : ALARM_MAJOR :CTP2 RX LOL :DECLARE ::  
PKT_INFRA-FM-3-FAULT_MAJOR : ALARM_MAJOR :CTP2 RX LOL :CLEAR ::

Bias-Free Language

Results

Chapter: Configuring Controllers

Configuring Controllers

Optics Controllers

How to Configure Controllers

Configuring Optics Controller

Before you begin

Procedure

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Configure Port Mode Speed

Before you begin

Procedure

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Configuring Wavelength

Before you begin

Procedure

Example:

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Example:

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