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The segment routing use case is built on an older internal release of ONOS (v0.3.0). The following instructions do not apply to ONOS 1.0.0 (Avocet), and are meant only for the SPRING-OPEN project.

There is no IP network in the world that can run without configuration. In SPRING-OPEN, instead of configuring each switch individually (with IP addresses, subnets, labels etc.) we configure the controller. Such configuration should be possible via the controller CLI. However we have limited configuration capabilities currently in the controller CLI (just tunnels and policies). Thus all startup-configuration happens via a configuration file loaded at controller startup. Please note that without this config file (or with the wrong config file) the network will not work correctly.

Edit ~/ONOS/conf/onos.properties

If you create a new network configuration file, you need to specify the file in net.onrc.onos.core.configmanager.NetworkConfigManager.networkConfigFile field. In the example below, conf/sr-3node.conf file was specified.

Code Block

language	text
title	onos.properties
collapse	true

floodlight.modules = net.floodlightcontroller.core.FloodlightProvider,\
net.floodlightcontroller.threadpool.ThreadPool,\
net.onrc.onos.core.topology.TopologyPublisher, \
net.onrc.onos.core.datagrid.HazelcastDatagrid,\
net.onrc.onos.core.flowprogrammer.FlowProgrammer,\
net.onrc.onos.core.intent.runtime.PathCalcRuntimeModule,\
net.onrc.onos.core.intent.runtime.PlanInstallModule,\
net.onrc.onos.core.registry.ZookeeperRegistry, \
net.onrc.onos.core.metrics.OnosMetricsModule, \
net.onrc.onos.apps.websocket.WebSocketModule, \
net.onrc.onos.core.main.config.DefaultConfiguration, \
net.onrc.onos.apps.segmentrouting.SegmentRoutingManager
net.floodlightcontroller.restserver.RestApiServer.port = 8080
net.floodlightcontroller.core.FloodlightProvider.openflowport = 6633
net.floodlightcontroller.core.FloodlightProvider.workerthreads = 16
net.floodlightcontroller.core.FloodlightProvider.cpqdUsePipeline13 = true
net.floodlightcontroller.forwarding.Forwarding.idletimeout = 5
net.floodlightcontroller.forwarding.Forwarding.hardtimeout = 0
net.onrc.onos.apps.websocket.WebSocketModule.port = 8081
net.floodlightcontroller.core.FloodlightProvider.cpqdUsePipeline13 = true
# NOTE: Do NOT modify or remove the line below. This value will be overwritten by onos.sh script.
net.onrc.onos.core.datagrid.HazelcastDatagrid.datagridConfig = 
# Uncomment and list all the ZooKeeper instances after localhost on multi-instance deployment.
#net.onrc.onos.core.registry.ZookeeperRegistry.connectionString = localhost:2181,otherhost:2181
# Specify a network configuration file to be used by the NetworkConfigManager
net.onrc.onos.core.configmanager.NetworkConfigManager.networkConfigFile = conf/sr-3node.conf

Edit network configuration file

The following example (sr-3node.conf) shows the network configuration for the topology with three switches and three links (refer to figure below).

Code Block

language	text
title	sr-3node.conf
collapse	true

{
  "comment": " Segment routing topology description and configuration",
  "restrictSwitches": true,
  "restrictLinks": true,
  "switchConfig":
             [
               { "nodeDpid": "00:01", "name": "Dallas-R1", "type": "Router_SR", "allowed": true,
                 "latitude": 80.80, "longitude": 90.10,
                 "params": { "routerIp": "192.168.0.1/32",
                             "routerMac": "00:00:01:01:01:80",
                             "nodeSid": 101,
                             "isEdgeRouter" : true,
                             "subnets": [
                                         { "portNo": 1, "subnetIp": "10.0.1.128/24" },
                    					 { "portNo": 2, "subnetIp": "10.0.1.128/24" },
					                     { "portNo": 3, "subnetIp": "10.0.1.128/24" },
                                         { "portNo": 4, "subnetIp": "10.0.2.128/24" },
                                         { "portNo": 5, "subnetIp": "10.0.3.128/24" }
                                         ]
                             }
                 },
               { "nodeDpid": "00:02", "name": "Dallas-R2", "type": "Router_SR", "allowed": true,
                 "latitude": 80.80, "longitude": 90.10,
                 "params": { "routerIp": "192.168.0.2/32",
                             "routerMac": "00:00:02:02:02:80",
                             "nodeSid": 102,
                             "isEdgeRouter" : false
                             }
                 },
               { "nodeDpid": "00:03", "name": "Dallas-R3", "type": "Router_SR", "allowed": true,
                 "latitude": 80.80, "longitude": 90.10,
                 "params": { "routerIp": "192.168.0.3/32",
                             "routerMac": "00:00:07:07:07:80",
                             "nodeSid": 103,
                             "isEdgeRouter" : true,
                             "subnets": [
                                         { "portNo": 1, "subnetIp": "7.7.7.128/24" }
                                         ]
                             }
                 }
               ],
  "linkConfig":[
                { "type": "pktLink", "allowed": true,
                  "nodeDpid1": "01", "nodeDpid2": "02",
                  "params": { "port1": 6, "port2": 1 }
                  },
               { "type": "pktLink", "allowed": true,
                  "nodeDpid1": "01", "nodeDpid2": "02",
                  "params": { "port1": 7, "port2": 3 }
                  },
                { "type": "pktLink", "allowed": true,
                  "nodeDpid1": "02", "nodeDpid2": "03",
                  "params": { "port1": 2, "port2": 2 }
                  }
                ]
}

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