Southbound CLI

Southbound CLI Reviews

This spec addresses following enhancement in Openflowplugin module:

Addition of new Karaf feature odl-openflowplugin-app-southbound-cli under openflowplugin module that provides useful CLIs for users. This feature won’t be part of any existing openflowplugin feature and user needs to explicitly install it in addition to the existing features.

Problem description

Currently there is no way of getting the formatted list of openflow nodes connected to the OpenDaylight controller. User has to fetch operational inventory using Restconf and search for all the connected nodes. Even to get the list of ports available under a OpenFlow node, user need to search the entire inventory dump. From user experience perspective it’s not really very helpful, and at scale fetching the entire inventor from data store can cause CPU spike for the controller because of the huge data present under inventory tree.

Southbound CLI

New Karaf feature is developed that will provide command line interface to the user using which user can retrieving the list of connected OpenFlow nodes and the ports available under each OpenFlow node.

Use Cases

  • List of all OpenFlow node(s) connected to the OpenDaylight controller in either standalone or cluster environment.

  • List ports information available under a connected OpenFlow node

Proposed change

New karaf feature odl-openflowplugin-app-southbound-cli will be added and it will not be part of any existing openflowplugin feature. User will have to explicitly install the feature to get the available CLIs.

Following 2 CLIs will be added:

  • openflow:getallnodes

  • openflow:shownode

openflow:getallnodes will display information like NodeId and NodeName(datapath description) for all the connected nodes.

openflow:shownode will display information like NodeId, NodeName(datapath description) and Ports for a given openflow node.

Alternatives

Use RestConf to fetch entire operational inventory and parse through it.

Usage

Install odl-openflowplugin-app-southbound-cli feature as it is not part of any existing openflowplugin features.

List the connected openflow nodes under odl controller either in standalone or cluster environment. In clustered environment user need to install this feature on all the three nodes if it wants to use any node to run these CLI commands, but user also can choose to install it on a dedicated node only if that’s the master node to run CLI commands. This feature can be install at any point of time during or after controller start.

openflow:getallnodes
[email protected]>openflow:getallnodes
Number of nodes: 1
NodeId              NodeName

--------------------------------------------------------------------------
137313212546623     None

List the available ports under openflow node.

openflow:shownode
[email protected]>openflow:shownode -d 137313212546623
OFNode                   Name                 Ports
------------------------------------------------------------------------------------
137313212546623          None                 br-int

Implementation

Assignee(s)

Primary assignee: * Arunprakash D <d.arunprakash@ericsson.com>

Contributors: * Gobinath Suganthan <gobinath@ericsson.com>

Work Items

  • Implementation of cli to list the connected openflow nodes across standalone or clustered environment.

  • Implementation of cli to list the ports available under openflow node.

Dependencies

No new dependencies.

Testing

Unit Tests

  1. Verify CLI to list all the connected openflow nodes

  2. Verify CLI to list all the ports under openflow node

CSIT

None