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This chapter describes the Optics Controller . This chapter also describes the procedures used to configure the controllers.
 Note |
When you plan to replace a configured optical module with a different type of optical module, you must clear the configurations of the old module before installing the new optical module. |
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:
|
This section contains the following procedures:
To configure the Optics controller, use the following commands:
You must shut down the optics controller before you perform any of the following tasks:
Configure the controller
Restore a saved configuration
| Command or Action | Purpose | |
|---|---|---|
|
Step 1 |
configure Example: |
Enters global configuration mode. |
|
Step 2 |
controller optics r/s/i/p Example: |
Enters optics controller configuration mode. |
|
Step 3 |
shutdown Example: |
Shuts down the optics controller. |
|
Step 4 |
commit Example: |
Saves the configuration changes to the running configuration file and remains within the configuration session. |
|
Step 5 |
rx-high-threshold rx-high Example: |
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: |
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: |
Removes the shutdown configuration on the optics controller. |
|
Step 8 |
commit Example: |
Saves the configuration changes to the running configuration file and remains within the configuration session. |
To configure the port mode speed, use the following commands:
Ensure that you shut down the controller before you configure the controller or restore a saved configuration.
| Command or Action | Purpose | |
|---|---|---|
|
Step 1 |
configure Example: |
Enters global configuration mode. |
|
Step 2 |
controller optics r/s/i/p Example: |
Enters optics controller configuration mode |
|
Step 3 |
shutdown Example: |
Shuts down the optics controller. |
|
Step 4 |
commit Example: |
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: |
Configures the port mode speed. |
|
Step 6 |
no shutdown Example: |
Removes the shutdown configuration on the optics controller. |
|
Step 7 |
commit Example: |
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)#
Configuring Port Speed on 25G ports
The 25G ports are divided into four quads (0-3). Each quad houses the following ports:
Quad 0 - Ports 24-27
Quad 1 - Ports 28-31
Quad 2 - Ports 32-35
Quad 3 - Ports 36-39
Generic Limitations and Guidelines
25G is the default mode set on the quad.
1G and 10G cannot co-exist on the same quad as 25G.
10G mode supports both 1G and 10G.
To modify the default 25G quad ports into 10G ports, perform the below configuration:
Before Release 7.5.1:
RP/0/RP0/CPU0:router(config)# hw-module quad X location 0/0/CPU0
RP/0/RP0/CPU0:router(config-quad-0x0)# mode 10g
From Release 7.5.1:
RP/0/RP0/CPU0:router(config)# hw-module quad X location 0/0/CPU0 instance Y mode 10g
RP/0/RP0/CPU0:router(config-quad-0x0)# mode 10g
Here, X is the number of quads (0,1,2,3...n) supported. Each quad has a default speed of 25G.
Note |
To revert to the default 25G mode, use the |
Y denotes 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.
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. |
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.
To configure wavelength, use the following commands:
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.
| Command or Action | Purpose | |
|---|---|---|
|
Step 1 |
configure Example: |
Enters global configuration mode. |
|
Step 2 |
controller optics r/s/i/p Example: |
Enters optics controller configuration mode. |
|
Step 3 |
shutdown Example: |
Shuts down the optics controller. |
|
Step 4 |
commit Example: |
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: |
Configures the frequency on the trunk port. |
|
Step 6 |
no shutdown Example: |
Removes the shutdown configuration on the optics controller. |
|
Step 7 |
commit Example: |
Saves the configuration changes to the running configuration file and remains within the configuration session. |
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 1960625The 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 1960625Note |
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. 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. |
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