LDP_LSR

Package: inet.node.mpls

LDP_LSR

compound module

An LDP-capable router.

LDP Capable Routers are the main building blocks for an LDP MPLS network.

status : NodeStatus Keeps track of the status of network node (up, down, etc.) for other modules, and also displays it... Source: status: NodeStatus if hasStatus { @display("p=73,45"); } interfaceTable : InterfaceTable Keeps the table of network interfaces. Source: interfaceTable: InterfaceTable { parameters: @display("p=73,176;is=s"); } routingTable : IPv4RoutingTable Stores the routing table. Source: routingTable: IPv4RoutingTable { parameters: forwarding = true; routerId = parent.routerId; @display("p=70,240"); } ldp : LDP Handles and processes LDP messages. Source: ldp: LDP { parameters: holdTime = parent.holdTime; helloInterval = parent.helloInterval; @display("p=222,67"); } ted : TED Traffic Engineering Database. Source: ted: TED { parameters: @display("p=340,244"); } linkStateRouting : LinkStateRouting This module implements a very minimalistic link state routing protcol. Source: linkStateRouting: LinkStateRouting { parameters: peers = parent.peers; @display("p=360,150"); } tcp : like ITCP ITCP: Interface for TCP protocol implementations. Source: tcp: <tcpType> like ITCP { parameters: @display("p=177,145"); } udp : like IUDP IUDP: UDP protocol interface. Source: udp: <default(firstAvailable("UDP"))> like IUDP { parameters: @display("p=267,145"); } networkLayer : IPv4NetworkLayer Network layer of an IPv4 node. Source: networkLayer: IPv4NetworkLayer { parameters: @display("p=224,223"); gates: ifIn[sizeof(parent.pppg)+1]; ifOut[sizeof(parent.pppg)+1]; } lo0 : LoopbackInterface Loopback interface. Source: lo0: LoopbackInterface { @display("p=50,388"); } ppp[sizeof(pppg)] : like IWiredNic PPPInterface: PPP interface. IWiredNic: Prototype module for link layer protocols. Source: ppp[sizeof(pppg)]: <default("PPPInterface")> like IWiredNic { parameters: @display("p=131,388,row,90;q=l2queue"); } mpls : MPLS Implements the MPLS protocol. Source: mpls: MPLS { parameters: //peers = peers, classifierModule = "^.ldp"; @display("p=224,302"); gates: netwIn[sizeof(parent.pppg)+1]; netwOut[sizeof(parent.pppg)+1]; ifIn[sizeof(parent.pppg)+1]; ifOut[sizeof(parent.pppg)+1]; } libTable : LIBTable Stores the LIB (Label Information Base), accessed by ~MPLS and its associated control protocols... Source: libTable: LIBTable { parameters: @display("p=340,305"); }

Usage diagram

The following diagram shows usage relationships between types. Unresolved types are missing from the diagram.

Parameters

Name Type Default value Description
hasStatus bool false
holdTime double 15s
helloInterval double 5s
peers string
routerId string "auto"
tcpType string firstAvailable("TCP","TCP_lwIP","TCP_NSC")

tcp implementation (e.g. TCP, TCP_lwIP, TCP_NSC) or TCPSpoof

Properties

Name Value Description
networkNode
labels node
display i=abstract/router

Gates

Name Direction Size Description
pppg [ ] inout

Unassigned submodule parameters

Name Type Default value Description
status.initialStatus string "UP"

TODO @signal, @statistic
interfaceTable.displayAddresses bool false

whether to display IP addresses on links
routingTable.interfaceTableModule string

The path to the InterfaceTable module
routingTable.netmaskRoutes string "*"

maintain netmask routes for interfaces
routingTable.multicastForwarding bool false

turns multicast forwarding on/off
routingTable.useAdminDist bool false

Use Cisco like administrative distances
routingTable.routingFile string ""

routing table file name
ldp.interfaceTableModule string

The path to the InterfaceTable module
ldp.routingTableModule string
ldp.libTableModule string
ldp.tedModule string
ldp.dataTransferMode string "bytecount"

TCP data transfer mode
ted.interfaceTableModule string

The path to the InterfaceTable module
ted.routingTableModule string
linkStateRouting.interfaceTableModule string

The path to the InterfaceTable module
linkStateRouting.routingTableModule string
linkStateRouting.tedModule string
networkLayer.configurator.interfaceTableModule string

The path to the InterfaceTable module
networkLayer.configurator.networkConfiguratorModule string "configurator"

TODO: eventually rename to networkConfigurator
networkLayer.configurator.configureRoutingTable bool true

add routing entries to routing table (uses the configurator module)
networkLayer.ip.interfaceTableModule string

The path to the InterfaceTable module
networkLayer.ip.routingTableModule string
networkLayer.ip.arpModule string
networkLayer.ip.icmpModule string
networkLayer.ip.procDelay double 0s
networkLayer.ip.timeToLive int 32
networkLayer.ip.multicastTimeToLive int 32
networkLayer.ip.fragmentTimeout double 60s
networkLayer.ip.forceBroadcast bool false
networkLayer.icmp.interfaceTableModule string

The path to the InterfaceTable module
networkLayer.icmp.routingTableModule string
networkLayer.ipsec.networkProtocolModule string "^.ip"
networkLayer.ipsec.spdModule string "^.spd"
networkLayer.ipsec.sadModule string "^.sad"
networkLayer.ipsec.spdConfig xml
networkLayer.ipsec.defaultProtection string ""

if not "": value to use where <Protection> element is absent from the configuration
networkLayer.ipsec.defaultEspMode string ""

if not "": value to use where <EspMode> element is absent from the configuration
networkLayer.ipsec.defaultEncryptionAlg string ""

if not "": value to use where <EncryptionAlg> element is absent from the configuration
networkLayer.ipsec.defaultAuthenticationAlg string ""

if not "": value to use where <defaultAuthenticationAlg> element is absent from the configuration
networkLayer.ipsec.defaultMaxTfcPadLength int 0

value to use where <MaxTfcPadLength> element is absent from the configuration
networkLayer.ipsec.ahProtectOutDelay double 0.0s
networkLayer.ipsec.ahProtectInDelay double 0.0s
networkLayer.ipsec.espProtectOutDelay double 0.0s
networkLayer.ipsec.espProtectInDelay double 0.0s
lo0.lo.interfaceTableModule string

The path to the InterfaceTable module
lo0.lo.mtu int 4470B
mpls.interfaceTableModule string

The path to the InterfaceTable module
mpls.libTableModule string
libTable.config xml xml("")

table contents to be loaded on startup

Source code

//
// An LDP-capable router.
//
// LDP Capable Routers are the main building blocks for an LDP MPLS network.
//
module LDP_LSR
{
    parameters:
        @networkNode();
        @labels(node);
        @display("i=abstract/router");
        bool hasStatus = default(false);
        double holdTime @unit("s") = default(15s);
        double helloInterval @unit("s") = default(5s);
        string peers;
        string routerId = default("auto");
        string tcpType = default(firstAvailable("TCP","TCP_lwIP","TCP_NSC"));  // tcp implementation (e.g. ~TCP, ~TCP_lwIP, ~TCP_NSC) or ~TCPSpoof
        *.interfaceTableModule = default(absPath(".interfaceTable"));
        *.routingTableModule = default(absPath(".routingTable"));
        *.tedModule = default(absPath(".ted"));
        *.libTableModule = default(absPath(".libTable"));
    gates:
        inout pppg[] @labels(PPPFrame-conn);
    submodules:
        status: NodeStatus if hasStatus {
            @display("p=73,45");
        }
        interfaceTable: InterfaceTable {
            parameters:
                @display("p=73,176;is=s");
        }
        routingTable: IPv4RoutingTable {
            parameters:
                forwarding = true;
                routerId = parent.routerId;
                @display("p=70,240");
        }
        ldp: LDP {
            parameters:
                holdTime = parent.holdTime;
                helloInterval = parent.helloInterval;
                @display("p=222,67");
        }
        ted: TED {
            parameters:
                @display("p=340,244");
        }
        linkStateRouting: LinkStateRouting {
            parameters:
                peers = parent.peers;
                @display("p=360,150");
        }
        tcp: <tcpType> like ITCP {
            parameters:
                @display("p=177,145");
        }
        udp: <default(firstAvailable("UDP"))> like IUDP {
            parameters:
                @display("p=267,145");
        }
        networkLayer: IPv4NetworkLayer {
            parameters:
                @display("p=224,223");
            gates:
                ifIn[sizeof(parent.pppg)+1];
                ifOut[sizeof(parent.pppg)+1];
        }
        lo0: LoopbackInterface {
            @display("p=50,388");
        }
        ppp[sizeof(pppg)]: <default("PPPInterface")> like IWiredNic {
            parameters:
                @display("p=131,388,row,90;q=l2queue");
        }
        mpls: MPLS {
            parameters:
                //peers = peers,
                classifierModule = "^.ldp";
                @display("p=224,302");
            gates:
                netwIn[sizeof(parent.pppg)+1];
                netwOut[sizeof(parent.pppg)+1];
                ifIn[sizeof(parent.pppg)+1];
                ifOut[sizeof(parent.pppg)+1];
        }
        libTable: LIBTable {
            parameters:
                @display("p=340,305");
        }
    connections allowunconnected:
        linkStateRouting.ipOut --> networkLayer.transportIn++;
        linkStateRouting.ipIn <-- networkLayer.transportOut++;

        ldp.tcpIn <-- tcp.appOut++;
        ldp.tcpOut --> tcp.appIn++;

        ldp.udpOut --> udp.appIn++;
        ldp.udpIn <-- udp.appOut++;

        udp.ipOut --> networkLayer.transportIn++;
        udp.ipIn <-- networkLayer.transportOut++;

        tcp.ipOut --> networkLayer.transportIn++;
        tcp.ipIn <-- networkLayer.transportOut++;

        lo0.upperLayerOut --> networkLayer.ifIn[0];
        networkLayer.ifOut[0] --> lo0.upperLayerIn;

        for i=0..sizeof(pppg)-1 {
            pppg[i] <--> ppp[i].phys;

            ppp[i].upperLayerOut --> mpls.ifIn[i+1];
            ppp[i].upperLayerIn <-- mpls.ifOut[i+1];

            mpls.netwOut[i+1] --> networkLayer.ifIn[i+1];
            mpls.netwIn[i+1] <-- networkLayer.ifOut[i+1];
        }
}
File: src/inet/node/mpls/LDP_LSR.ned

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