This page describe how to execute <get> and <edit-config> operations about "target-output-power" XML node via Netconf. There are totally three ways to config power.


1. Environment Requirement

Assume that we have started an OpenConfig Cassini Emulator which runs a Netconf server in docker as follows:

CONTAINER ID        IMAGE                         COMMAND                  CREATED             STATUS              PORTS                                      NAMES
20c0298eb652        onosproject/oc-cassini:0.21   "sh /root/script/pus…"   2 hours ago         Up 2 hours          22/tcp, 8080/tcp, 0.0.0.0:11002->830/tcp   odtn-emulator_openconfig_cassini_1_1


2. Perform Operations

2.1 Config Power by using Netconf tool like netconf-console

So we use the command listed below to send RPC request to the container:

netconf-console --host=127.0.0.1 --port=11003 -u admin -p admin --rpc={XML_FILE_NAME}

The root node of "openconfig-platform.yang" is "<components>" and its sublist "<component>" contains "<name>" node as its identity. Besides "openconfig-terminal-device.yang" adds node "<optical-channel>" into "<component>" node. "<target-power-config>" is defined as a child node of "<optical-channel>".

2.1.1 Perform <get> Operation

If you want to get the whole components, the content of get-components is:

<?xml version="1.0"?>
<get xmlns="urn:ietf:params:xml:ns:netconf:base:1.0">
  <filter xmlns:oc-platform="http://openconfig.net/yang/platform">
    <oc-platform:components/>
  </filter>
</get>


You can take a look at the output of get components here: out-get-components.xml

If you want to get only the "<optical-channel>" of "<component>", the content of get-components-op-channel is:

<?xml version="1.0"?>
<get xmlns="urn:ietf:params:xml:ns:netconf:base:1.0">
<filter>
    <components xmlns="http://openconfig.net/yang/platform">
      <component>
        <optical-channel xmlns="http://openconfig.net/yang/terminal-device" />
      </component>
    </components>
  </filter>
</get>

The output is out-get-components-op-channel:

<rpc-reply xmlns="urn:ietf:params:xml:ns:netconf:base:1.0" xmlns:nc="urn:ietf:params:xml:ns:netconf:base:1.0" message-id="urn:uuid:c9220366-76bd-43ba-ad3c-13e1b7014e21">
  <data>
    <components xmlns="http://openconfig.net/yang/platform">
      <component>
        <optical-channel xmlns="http://openconfig.net/yang/terminal-device">
          <config>
            <frequency>0</frequency>
            <target-output-power>-10.0</target-output-power>
            <line-port>oe1</line-port>
          </config>
        </optical-channel>
      </component>
      <component>
        <optical-channel xmlns="http://openconfig.net/yang/terminal-device">
          <config>
            <frequency>0</frequency>
            <target-output-power>0.0</target-output-power>
            <line-port>oe1</line-port>
          </config>
        </optical-channel>
      </component>
      <component>
        <optical-channel xmlns="http://openconfig.net/yang/terminal-device">
          <config>
            <frequency>194700000</frequency>
            <target-output-power>-10.0</target-output-power>
            <line-port>oe2</line-port>
          </config>
        </optical-channel>
      </component>
      <component>
        <optical-channel xmlns="http://openconfig.net/yang/terminal-device">
          <config>
            <frequency>0</frequency>
            <target-output-power>-10.0</target-output-power>
            <line-port>oe2</line-port>
          </config>
        </optical-channel>
      </component>
      <component>
        <optical-channel xmlns="http://openconfig.net/yang/terminal-device">
          <config>
            <frequency>0</frequency>
            <target-output-power>-10.0</target-output-power>
            <line-port>oe3</line-port>
          </config>
        </optical-channel>
      </component>
      <component>
        <optical-channel xmlns="http://openconfig.net/yang/terminal-device">
          <config>
            <frequency>0</frequency>
            <target-output-power>-10.0</target-output-power>
            <line-port>oe3</line-port>
          </config>
        </optical-channel>
      </component>
      <component>
        <optical-channel xmlns="http://openconfig.net/yang/terminal-device">
          <config>
            <frequency>194700000</frequency>
            <target-output-power>-10.0</target-output-power>
            <line-port>oe4</line-port>
          </config>
        </optical-channel>
      </component>
      <component>
        <optical-channel xmlns="http://openconfig.net/yang/terminal-device">
          <config>
            <frequency>194750000</frequency>
            <target-output-power>-10.0</target-output-power>
            <line-port>oe4</line-port>
          </config>
        </optical-channel>
      </component>
      <component>
        <optical-channel xmlns="http://openconfig.net/yang/terminal-device">
          <config>
            <frequency>194700000</frequency>
            <target-output-power>-10.0</target-output-power>
            <line-port>oe5</line-port>
          </config>
        </optical-channel>
      </component>
      <component>
        <optical-channel xmlns="http://openconfig.net/yang/terminal-device">
          <config>
            <frequency>194750000</frequency>
            <target-output-power>-10.0</target-output-power>
            <line-port>oe5</line-port>
          </config>
        </optical-channel>
      </component>
      <component>
        <optical-channel xmlns="http://openconfig.net/yang/terminal-device">
          <config>
            <frequency>194700000</frequency>
            <target-output-power>-10.0</target-output-power>
            <line-port>oe6</line-port>
          </config>
        </optical-channel>
      </component>
      <component>
        <optical-channel xmlns="http://openconfig.net/yang/terminal-device">
          <config>
            <frequency>194750000</frequency>
            <target-output-power>-10.0</target-output-power>
            <line-port>oe6</line-port>
          </config>
        </optical-channel>
      </component>
      <component>
        <optical-channel xmlns="http://openconfig.net/yang/terminal-device">
          <config>
            <frequency>194700000</frequency>
            <target-output-power>-10.0</target-output-power>
            <line-port>oe7</line-port>
          </config>
        </optical-channel>
      </component>
      <component>
        <optical-channel xmlns="http://openconfig.net/yang/terminal-device">
          <config>
            <frequency>194750000</frequency>
            <target-output-power>-10.0</target-output-power>
            <line-port>oe7</line-port>
          </config>
        </optical-channel>
      </component>
      <component>
        <optical-channel xmlns="http://openconfig.net/yang/terminal-device">
          <config>
            <frequency>194700000</frequency>
            <target-output-power>-10.0</target-output-power>
            <line-port>oe8</line-port>
          </config>
        </optical-channel>
      </component>
      <component>
        <optical-channel xmlns="http://openconfig.net/yang/terminal-device">
          <config>
            <frequency>194750000</frequency>
            <target-output-power>-10.0</target-output-power>
            <line-port>oe8</line-port>
          </config>
        </optical-channel>
      </component>
    </components>
  </data>
</rpc-reply>

If you want to get the "<config>" nodes only where the frequency is 194750000 and the line-port is oe1, the content of get-config-nodes is:

<?xml version="1.0"?>
<get xmlns="urn:ietf:params:xml:ns:netconf:base:1.0">
  <filter>
    <components xmlns="http://openconfig.net/yang/platform">
      <component>
        <optical-channel xmlns="http://openconfig.net/yang/terminal-device">
          <config>
            <line-port>oe1</line-port>
            <frequency>194750000</frequency>
          </config>
        </optical-channel>
      </component>
    </components>
  </filter>
</get>
</get>

The output is is out-get-config-nodes:

<nc:rpc-reply xmlns:nc="urn:ietf:params:xml:ns:netconf:base:1.0" message-id="urn:uuid:703f18cc-512f-411c-8b8d-f07a87b4797f">
  <data xmlns="urn:ietf:params:xml:ns:netconf:base:1.0">
    <components xmlns="http://openconfig.net/yang/platform">
      <component>
        <name>oe1/2</name>
        <optical-channel xmlns="http://openconfig.net/yang/terminal-device">
          <config>
            <frequency>194750000</frequency>
            <target-output-power>-5.1</target-output-power>
            <line-port>oe1</line-port>
          </config>
        </optical-channel>
      </component>
    </components>
  </data>
</nc:rpc-reply>

2.1.2 Perform <edit-config> operation

If you want to change the target-output-power value as 0dBm  instead of the default -5.1 dBm  where "<name>" ID is "oe1/2", the content of file is set-target-output-power :

<?xml version="1.0"?>
<edit-config xmlns="urn:ietf:params:xml:ns:netconf:base:1.0">
  <target><running/></target>
  <config>
    <components xmlns="http://openconfig.net/yang/platform">
      <component>
        <name>oe1/2</name>
        <optical-channel xmlns="http://openconfig.net/yang/terminal-device">
          <config>
            <target-output-power>0</target-output-power>
          </config>
        </optical-channel>
      </component>
    </components>
  </config>
</edit-config>


The output is:

<rpc-reply xmlns="urn:ietf:params:xml:ns:netconf:base:1.0" xmlns:nc="urn:ietf:params:xml:ns:netconf:base:1.0" message-id="urn:uuid:3b4de76f-74f0-4f06-808d-64320a6c47ed">
  <ok/>
</rpc-reply>

Then we request the "<config>" nodes again to check this operation, where the frequency is 194750000 and the line-port is oe1 using  get-config-nodes:

As you the following output illustrates, the target-output-power is changed from -5.1 to 0.

<nc:rpc-reply xmlns:nc="urn:ietf:params:xml:ns:netconf:base:1.0" message-id="urn:uuid:ca069e53-020a-4201-a9d3-53f4e5534bec">
  <data xmlns="urn:ietf:params:xml:ns:netconf:base:1.0">
    <components xmlns="http://openconfig.net/yang/platform">
      <component>
        <name>oe1/2</name>
        <optical-channel xmlns="http://openconfig.net/yang/terminal-device">
          <config>
            <frequency>194750000</frequency>
            <target-output-power>0.0</target-output-power>
            <line-port>oe1</line-port>
          </config>
        </optical-channel>
      </component>
    </components>
  </data>
</nc:rpc-reply>

2.2 ONOS startup and node discovery

This section is the environment for section 2.3 and 2.4.

Firstly, an ONOS instance is started via command "bazel run onos-local -- clean". Secondly, the docker container connects to ONOS via command "onos-netcfg localhost device.json". The content of device.json is:

{
  "devices" : {
    "netconf:127.0.0.1:11002" : {
      "basic" : {
        "name":"cassini2",
        "driver":"cassini-ocnos"
      },
      "netconf" : {
        "ip" : "127.0.0.1",
        "port" : "11002",
        "username" : "root",
        "password" : "root",
        "idle-timeout" : "0"
      }
    }
  }
}

Then, we use "onos localhost" to log into ONOS CLI environment and see if the docker container is detected.

Welcome to Open Network Operating System (ONOS)!
     ____  _  ______  ____
    / __ \/ |/ / __ \/ __/
   / /_/ /    / /_/ /\ \
   \____/_/|_/\____/___/

Documentation: wiki.onosproject.org
Tutorials:     tutorials.onosproject.org
Mailing lists: lists.onosproject.org

Come help out! Find out how at: contribute.onosproject.org

Hit '<tab>' for a list of available commands
and '[cmd] --help' for help on a specific command.
Hit '<ctrl-d>' or type 'logout' to exit ONOS session.

onf@root > devices                                                                                                                                                   11:54:09
id=netconf:127.0.0.1:11002, available=true, local-status=connected 4m53s ago, role=MASTER, type=TERMINAL_DEVICE, mfr=EDGECORE, hw=Cassini, sw=OcNOS, serial=, chassis=1, driver=cassini-ocnos, ipaddress=127.0.0.1, locType=none, name=cassini2, port=11002, protocol=NETCONF


2.3 Config Power by using ONOS CLI Command "power-config"

An ONOS command is provided to configure the power of line-side ports.

In ONOS CLI environment, the description for command "power-config" is listed:

onf@root > help power-config                                                                                                                                         11:56:39
DESCRIPTION
        onos:power-config

    Get/Edit the target-output-power for specific optical-channel

SYNTAX
        onos:power-config [options] operation connection point [value]

ARGUMENTS
        operation
                Netconf Operation including get, edit-config, etc.
                (required)
        connection point
                {DeviceID}/{PortNumber}
                (required)
        value
                target-output-power value. Unit: dBm

OPTIONS
        --help
                Display this help message
        -j, --json
                Output JSON


This command also supports auto-completion function for each parameter.

Currently, only get and edit-config operations are supported:

onf@root > power-config                                                                                                                                              11:56:43
get             lock            unlock          get-config      copy-config     edit-config     kill-session    close-session   delete-config

2.3.1 Perform <get> Operation

Through power-config command, you can get the power value of any line-side port of any optical device, for example,

onf@root > power-config get netconf:127.0.0.1:11002/216                                                                                                              11:56:43
The target-output-power value in port 216 on device netconf:127.0.0.1:11002 is -2.


2.3.2 Perform <edit-config> Operation

Through power-config command, you can modify the power value of any line-side port of any optical device, for example,

onf@root > power-config edit-config netconf:127.0.0.1:11002/216 -4                                                                                                   12:04:11
onf@root > power-config get netconf:127.0.0.1:11002/216                                                                                                              12:06:01
The target-output-power value in port 216 on device netconf:127.0.0.1:11002 is -4.


2.4 Config Power on ONOS roadm GUI2 pages

Apart from configuring the power in ONOS CLI, the customer view of roadm application also provides the button to do that.

Firstly, we use command "onos localhost app activate roadm" to activate roadm application. Then, open the roadm page http://localhost:8181/onos/ui/#/roadm-gui:

Select one device netconf:127.0.0.1:11002, and click the port icon on the right-top corner, then you can edit the power of its line-side ports on port page http://localhost:8181/onos/ui/#/roadm-gui/roadm-port-gui?devId=netconf:127.0.0.1:11002. The client-side ports couldn't be edited (see port 116).