Each port on the 6-port Coherent Line Card can support 100 Gbps (DWDM QPSK), 150Gbps (DWDM 8 QAM), or 200Gbps (DWDM 16 QAM)
WDM signals.
![](https://www.cisco.com/content/dam/en/us/td/i/templates/note.gif) Note |
The line card has three Digital Signal Processors (DSPs), one for each pair of ports:
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Ports 0 and 1 – DSP0
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Ports 2 and 3 – DSP1
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Ports 4 and 5 – DSP2
When you configure the port-mode speed for 150Gbps (8 QAM), the port pairs belonging to a DSP are coupled. Ensure that you
configure the port-mode speed on each port of the port pair that belongs to the same DSP.
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To configure the port mode speed, use the following commands:
![](https://www.cisco.com/content/dam/en/us/td/i/templates/note.gif) 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 clears 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 ::
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![](https://www.cisco.com/content/dam/en/us/td/i/templates/note.gif) Note |
On NCS-55A2-MOD-S and NC55-MOD-A-S with CFP2-DCO optics:
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During the laser-on process, you might briefly see Optical Transport Network (OTN) alarms on the console. This alarm clears
when the laser-on process is complete.
PKT_INFRA-FM-6-FAULT_INFO : OTUK-BDI :DECLARE :CoherentDSP0/0/2/2:
PKT_INFRA-FM-6-FAULT_INFO : OTUK-BDI :CLEAR :CoherentDSP0/0/2/2:
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During the laser-on process, you might briefly see transient transmit power and receive power alarms on the console. These
alarms are cleared when the laser-on process is complete.
PKT_INFRA-FM-4-FAULT_MINOR : ALARM_MINOR :LO-RXPOWER :DECLARE :Optics0/0/2/0:
PKT_INFRA-FM-4-FAULT_MINOR : ALARM_MINOR :LO-TXPOWER :DECLARE :Optics0/0/2/0:
PKT_INFRA-FM-4-FAULT_MINOR : ALARM_MINOR :HI-RXPOWER :DECLARE :Optics0/0/2/0:
PKT_INFRA-FM-4-FAULT_MINOR : ALARM_MINOR :LO-RXPOWER :CLEAR :Optics0/0/2/0:
PKT_INFRA-FM-4-FAULT_MINOR : ALARM_MINOR :HI-RXPOWER :CLEAR :Optics0/0/2/0:
PKT_INFRA-FM-4-FAULT_MINOR : ALARM_MINOR :LO-TXPOWER :CLEAR :Optics0/0/2/0:
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When you bring up the local optics controller, you might see repeated remote faults on the console.
PLATFORM-DPA-2-RX_FAULT : Interface HundredGigE0/0/2/2/0, Detected Remote Fault
PLATFORM-DPA-2-RX_FAULT : Interface HundredGigE0/0/2/2/1, Detected Remote Fault
PLATFORM-DPA-2-RX_FAULT : Interface HundredGigE0/0/2/2/0, Detected Local Fault
PLATFORM-DPA-2-RX_FAULT : Interface HundredGigE0/0/2/2/1, Detected Local Fault
PLATFORM-DPA-2-RX_FAULT : Interface HundredGigE0/0/2/2/0, Detected Remote Fault
PLATFORM-DPA-2-RX_FAULT : Interface HundredGigE0/0/2/2/1, Detected Remote Fault
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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)#
After you configure the port-mode speed, you can configure the following interfaces:
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100G – Each optics controller configuration creates a single 100GE port:
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• 200G – Each optics controller configuration creates two 100GE ports:
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150G (coupled) – Coupled optics controller configuration creates three 100GE port:
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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.