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Overview

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

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Features

L2 Forwarding

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• 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 (default: yes)
• l2Broadcast: yes to enable L2 Destination FF:FF:FF:FF:FF:FF MAC to be broadcast to all l2Network ports except the incoming port (default: yes)

IpSubnets

• ipPrefix: IP subnet range
• gatewayIp: Virtual Gateway IP address
• gatewayMac: Virtual Gateway Mac MAC address
• l2NetworkName: L2Network this IpSubnet is collocated

BorderRoutesBorder Routes

• ipPrefix: route prefix to be matched on destination IP address (NOTE: IpSubnet ipPrefix matching has priority over borderRoute ipPrefix)
• nextHop: outer gateway IP to which forward the matched packet; should be a valid IP address of IpSubnets

Devices, Ports / Interfaces

      To be used for L2Networks's interface fields

Example network-cfg.json file:

{

  "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" } ] }

  },

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  },

  "  "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" }

        ]

      }

    }

  }

}

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

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