Controllers are represented in the Rack/Slot/Instance/Port format; for example, 0/1/0/1.

The Optical Transport Section (OTS) controller holds all the optical parameters for the OTS optical interfaces. The optical interface has different capabilities depending on its hardware components such as photodiode, VOA, amplifier, and OCM. Hence, the parameters enabled or disabled on the OTS controller depend on the actual hardware capability on the specific optical interface. Each parameter might refer to RX or TX section. For example, if a photodiode is present, the OTS controller can read the total optical power. When the controller is created, each hardware capability is enabled or disabled.

You can configure parameters such as low power threshold, VOA attenuation setpoint, amplifier gain range, amplifier tilt, and amplifier gain set point for the OTS controller. The description on OTS interfaces cannot be added as they are on the optical amplifier module. To configure the OTS controller, use the following commands.

configure

controller controllertype Rack/Slot/Instance/Port

rx enable

rx-low-threshold value

tx enable

tx-low-threshold value

rx-voa-attenuation value

tx-voa-attenuation value

ampli-control-mode {automatic | manual}

ampli-gain-range {normal | extended}

ampli-gain value

ampli-tilt value

ampli-channel-power value

channel-power-max-delta value

osri {on | off}

safety-control-mode {auto | disabled}

commit

end

configure 
    controller ots 0/3/0/0
    ampli-gain-range extended
			 ampli-gain 290
    commit
end

configure 
    controller ots 0/3/0/0
    safety-control-mode auto
    commit
end

configure 
    controller ots 0/3/0/1
    safety-control-mode disabled
    commit
end

Use this procedure to display the parameters of OTS controllers.

show controllers controllertype Rack/Slot/Instance/Port [summary]

• The show controllers command displays all the configuration parameters, PM thresholds and alarms when keywords are not provided.

• The show controllers command displays the rx/tx power value and minimal information to understand port status when summary keyword is provided.

• A * wild card can be used to display all the controllers associated with a slot. For example, show controllers ots 0/1/0/* summary

Wed Aug 23 09:08:27.962 UTC

 Controller State: Up

 Transport Admin State: In Service

 Port Type: Line

 Laser State: Off

 Optics Status::


 Alarm Status:
 -------------
 Detected Alarms:
 RX-LOC

 Alarm Statistics:
 -----------------
 LOW-RX-PWR = 0
 LOW-TX-PWR = 0
 RX-LOS-P = 0
 RX-LOC = 1
 AMPLI-GAIN-DEG-LOW = 0
 AMPLI-GAIN-DEG-HIGH = 0
 AUTO-LASER-SHUT = 0
 AUTO-POW-RED = 89
 AUTO-AMPLI-CTRL-DISABLED = 0
 AUTO-AMPLI-CFG-MISMATCH = 0
 SWITCH-TO-PROTECT = 0
 AUTO-AMPLI-CTRL-RUNNING = 0

 Parameter Statistics:
 ---------------------
 TX Power = -40.00 dBm
 RX Power = -40.00 dBm
 Ampli Gain = -1.00 dB
 Ampli Tilt = 0.00
 Total TX Power = -40.00 dBm
 Total RX Power = -40.00 dBm

 Configured Parameters:
 -------------
 Rx Low Threshold = -25.0 dBm
 Tx Low Threshold = -20.0 dBm
 Ampli Gain = 1.00 dB
 Ampli Tilt = 0.00
 Ampli Channel power = 0.00 dBm
 Channel Power Max Delta = 3.00 dBm
 Ampli Control mode = Manual
 Ampli Gain Range = Normal
 Ampli Safety Control mode = auto
 Osri = OFF

Controller State: Down

Transport Admin State: In Service

Port Type: Line

Laser State: Apr

Optics Status::


         Alarm Status:
         -------------
         Detected Alarms:
                 AUTO-POW-RED

         Alarm Statistics:
         -----------------
         LOW-RX-PWR = 0
         LOW-TX-PWR = 0
         RX-LOS-P = 0
         RX-LOC = 1
         AMPLI-GAIN-DEG-LOW = 0
         AMPLI-GAIN-DEG-HIGH = 0
         AUTO-LASER-SHUT = 0
         AUTO-POW-RED = 1
         AUTO-AMPLI-CTRL-DISABLED = 0
         AUTO-AMPLI-CFG-MISMATCH = 0
         SWITCH-TO-PROTECT = 0
         AUTO-AMPLI-CTRL-RUNNING = 0

         Parameter Statistics:
         ---------------------
         TX Power = -40.00 dBm
         RX Power = -11.90 dBm
         Ampli Gain = -1.00 dB
         Ampli Tilt = -90.00
         Total TX Power = 7.99 dBm
         Total RX Power = -11.90 dBm
         Ampli Gain Range = Normal
         Ampli Safety Control mode = disabled
         Osri = OFF
         TX Enable = Enabled
         RX Enable = Enabled
         RX Span Loss = N/A
         TX Span Loss = N/A
         Rx Low Threshold Current = -25.0 dBm
         Back Reflection = -6.40 dBm

         Configured Parameters:
         -------------
         Rx Low Threshold = -25.0 dBm
         Tx Low Threshold = -20.0 dBm
         Ampli Gain = 12.00 dB
         Ampli Tilt = 0.00
         Ampli Channel power = 0.00 dBm
         Channel Power Max Delta = 3.00 dBm
         Ampli Channel Psd = 31.250 nW/MHz
         Rx Low Threshold Psd = 0.099 nW/MHz
         Ampli Control mode = Manual
         Ampli Safety Control mode = disabled
         Osri = OFF
         TX Enable = Enabled
         RX Enable = Enabled

The Span Loss Calculation is an automatic calculation of span losses between NCS 1001 systems. This feature applies to each topology such as protected or non-protected, linear with or without ILA nodes in the middle.

The Span Loss Calculation is a software functionality available for OTS controller and it can be statically enabled or disabled through hw-module configuration. Span Loss calculation is made using the TX and RX total power on EDFA ports.

For this feature 2 new parameters are managed in the show controller ots command for EDFA cards:

• RX Span Loss

• TX Span Loss

The Span Loss Calculation runs automatically every 5 minutes when there is a configuration change. In the order of priority, the possible configurations are:

• Remote node.

• OSC through OSPF.

Limitation

• Span Loss calculation is done by considering the total power of the transmission end and receiver end on the EDFA ports. If the PSM card is connected to the span (for example, in case of Path Protection Topology), the span boundaries are assumed to be the closer EDFA ports.

Once the feature is enabled and after the first span loss calculation, the loss calculated (for both IPv4 and IPv6) can be retrieved using the show controller ots command. In the output RX Span Loss and TX Span Loss are added. RX Span Loss and TX Span Loss are obtained as a result of difference between TX Total Power and RX Total Power read on the edge of the span.

In case of a TERM node, the command is applied to LINE port. For example, in case of EDFA in slot 1, the span loss calculated are shown in the output of the following command:

#show controllers ots 0/1/0/1
…
…
 RX Span Loss = 15.20 dB
 TX Span Loss = 14.80 dB
…
…

In case of an ILA node, the command is applied to LINE port (controller ots 0/slot/0/1) to obtain RX Span Loss of related span, and to COM port (controllers ots 0/slot/0/0) to obtain TX Span Loss of related span.

For example, in case of an EDFA of ILA site equipped in slot 3:

show controllers ots 0/3/0/1                             
…
 RX Span Loss = 12.40 dB
show controllers ots 0/3/0/0                                      
…
 TX Span Loss = 11.90 dB

Dual independent XR interfaces allows you to connect the two ethernet interfaces to two different switches of different subnet and also of the same subnet. From release 6.5.1, there are different ports from the ethernet switch MGMT RJ45, and Optical SFP MGMT to the CPU.

The two different Management Ethernet interfaces in to XR are:

• MgmtEth 0/RP0/CPU0/0 (already existing) representing the RJ45 port.

• MgmtEth 0/RP0/CPU0/1 (new one) representing the SFP port.

iPXE is not supported at power-on over the new optical interface.

Upgrades from previous releases using only SFP loses MGMT connectivity. In this case, you must configure through Console port.

Before using the two different interfaces, you must upgrade the BIOS and reload the 0/RP0 location.

The following example shows the output of the show running-config command:

RP/0/RP0/CPU0:MYST-144#show running-config
….
 interface MgmtEth0/RP0/CPU0/0
 ipv4 address xxx.xxx.xxx.xxx yyy.yyy.yyy.yyy
!
interface MgmtEth0/RP0/CPU0/1
 ipv6 address xxxx:xxxx:xxxx:xxxx::xxx:xxx/yy
 ipv6 enable
!
interface MgmtEth0/RP0/OSC1/0
 shutdown
!
interface MgmtEth0/RP0/OSC2/0
 shutdown
!
interface MgmtEth0/RP0/OSC3/0
 shutdown
!

The Optical Transport Section OCH (OTS OCH) controller represents the OCM device available on the OTS optical interface. This controller is created to have channel granularity over the OTS interface. The OTS OCH controller contains the wavelength information. The controller number starts from 1 and matches with the ITU channel identifier.

Several OTS OCH controllers are created for each OTS Controller depending on the grid configuration (ITU 100GHz or 50GHz Grid). 48 OTS OCH controllers are created for a 100GHz grid and 96 OTS OCH controllers are created for a 50GHz grid.

You can configure the parameters such as RX low power threshold and TX low power threshold for the OTS OCH controller. To configure the OTS OCH controller, use the following commands.

configure

controller controllertype Rack/Slot/Instance/Port

rx-low-threshold value

tx-low-threshold value

commit

end

configure 
    controller ots-och 0/1/0/0
    rx-low-threshold  -30
			 tx-low-threshold  -35
    commit
end

Use this procedure to display the parameters of OTS OCH controllers.

show controllers controllertype Rack/Slot/Instance/Port/Channel-number [summary]

• The show controllers command displays all the configuration parameters, PM thresholds and alarms when keywords are not provided.

• The show controllers command displays the rx/tx power value and wavelength when summary keyword is provided.

• A * wild card can be used to display all the OTS OCH controllers associated with a OTS controller. For example, show controllers ots-och 0/1/0/* summary

Fri Feb 24 13:20:18.456 CET

 Controller State: Up

 Transport Admin State: Maintenance

 Port Type: Line

 Laser State: On 

 Optics Status::


         Alarm Status:
         -------------
         Detected Alarms: 
                 LOW-RX-PWR 

         Alarm Statistics:
         -----------------
          LOW-RX-PWR = 219 
          LOW-TX-PWR = 5 
          RX-LOS-P = 0
          RX-LOC = 0
          AMPLI-GAIN-DEG-LOW = 0
          AMPLI-GAIN-DEG-HIGH = 0
          AUTO-LASER-SHUT = 0
          AUTO-POW-RED = 0
          AUTO-AMPLI-CTRL-DISABLED = 0
          AUTO-AMPLI-CFG-MISMATCH = 0
          SWITCH-TO-PROTECT = 0

         Parameter Statistics:
         ---------------------
         TX Power = 4.10 dBm
         RX Power = -30.70 dBm
         

         Configured Parameters:
         -------------
         Rx Low Threshold = -25.0 dBm
         Tx Low Threshold = -25.0 dBm