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SimpleFabric application is built to replace legacy leaf networks where lP subnets are collocated with each leaf L2 switches and do simple IP routing to upper gateway to Internet

Features

L2 Forwarding

• L2 Unicast Forwarding: Intra-Subnet is handled by Destination MAC matching Intents; based on HostService information
• L2 Broadcast Forwarding: Intra-Subnet broadcast is handles by Destination MAC matching Intents; base on L2Network configuration

...

• All forwarding are activated by Intents Framework which auto reconfigures on link failures

Configurations

L2Networks

• name: name of L2Network to be used by IpSubnets
• interfaces: interfaces names of ports of this L2Network
• l2Forward: yes to enable L2 Destination MAC based forwarding

...

{

  "devices":{

    ... list of devices ...

    "of:0000000000000011":{ "basic":{ "name":"LS1", "latitude":35, "longitude":-100 } },

    "of:0000000000000012":{ "basic":{ "name":"LS2", "latitude":35, "longitude":-90  } },

    "of:0000000000000021":{ "basic":{ "name":"SS1", "latitude":40, "longitude":-100 } },

    "of:0000000000000022":{ "basic":{ "name":"SS2", "latitude":40, "longitude":-90  } }

  },

  "ports" : {

    ... list of port/interfaces ...

    "of:0000000000000011/1" : { "interfaces" : [ { "name" : "h11" } ] },

    "of:0000000000000011/2" : { "interfaces" : [ { "name" : "h12" } ] },

    "of:0000000000000011/3" : { "interfaces" : [ { "name" : "h13" } ] },

    "of:0000000000000011/4" : { "interfaces" : [ { "name" : "h14" } ] },

    "of:0000000000000011/5" : { "interfaces" : [ { "name" : "d11" } ] },

    "of:0000000000000011/6" : { "interfaces" : [ { "name" : "d12" } ] },

    "of:0000000000000011/7" : { "interfaces" : [ { "name" : "LS1_SS1" } ] },

    "of:0000000000000011/8" : { "interfaces" : [ { "name" : "LS1_SS2" } ] },

    "of:0000000000000012/1" : { "interfaces" : [ { "name" : "h21" } ] } ,

    "of:0000000000000012/2" : { "interfaces" : [ { "name" : "h22" } ] },

    "of:0000000000000012/3" : { "interfaces" : [ { "name" : "h23" } ] },

    "of:0000000000000012/4" : { "interfaces" : [ { "name" : "h24" } ] },

    "of:0000000000000012/5" : { "interfaces" : [ { "name" : "d21" } ] },

    "of:0000000000000012/6" : { "interfaces" : [ { "name" : "d22" } ] },

    "of:0000000000000012/7" : { "interfaces" : [ { "name" : "LS2_SS1" } ] },

    "of:0000000000000012/8" : { "interfaces" : [ { "name" : "LS2_SS2" } ] },

    "of:0000000000000021/1" : { "interfaces" : [ { "name" : "SS1_LS1" } ] },

    "of:0000000000000021/2" : { "interfaces" : [ { "name" : "SS1_LS2" } ] },

    "of:0000000000000022/1" : { "interfaces" : [ { "name" : "SS2_LS1" } ] },

    "of:0000000000000022/2" : { "interfaces" : [ { "name" : "SS2_LS2" } ] }

  },

  "apps" : {

    "org.onosproject.simplefabric" : {

      "simpleFabric" : {

        "l2Networks" : [

          { "name" : "LEAF1", "interfaces" : ["h11", "h12", "h13", "h14", "d11", "d12" ], "l2Forward" : true },

          { "name" : "LEAF2", "interfaces" : ["h21", "h22", "h23", "h24", "d21", "d22" ], "l2Forward" : true }

        ],

        "ipSubnets" : [

           { "ipPrefix" : "10.0.1.0/24", "gatewayIp" : "10.0.1.1", "gatewayMac" : "00:00:10:00:01:01", "l2NetworkName" : "LEAF1" },

           { "ipPrefix" : "10.0.2.0/24", "gatewayIp" : "10.0.2.1", "gatewayMac" : "00:00:10:00:02:01", "l2NetworkName" : "LEAF2" }

        ],

        "borderRoutes" : [

           { "ipPrefix" : "0.0.0.0/0", "nextHop" : "10.0.1.2" }

        ]

      }

    }

  }

}

Modules

Topology configurations and events are all maintained by SimpleFabricManager and notified to sub modules to apply updates.

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