Compound Module NetworkLayer

Package: inet.nodes.inet
File: src/nodes/inet/NetworkLayer.ned

Network layer of an IP node.

Interfaces to transport layer: TCP, UDP, echo/ping, RSVP

Usage diagram:

The following diagram shows usage relationships between types. Unresolved types are missing from the diagram. Click here to see the full picture.

Inheritance diagram:

The following diagram shows inheritance relationships for this type. Unresolved types are missing from the diagram. Click here to see the full picture.

Used in compound modules:

If a module type shows up more than once, that means it has been defined in more than one NED file.

BurstHost (compound module)	Definition of an IP node with a transport generator that connects to IP directly, without TCP or UDP.
ExtRouter (compound module)	External router.
LDP_LSR (compound module)	An LDP-capable router.
OSPFRouter (compound module)	An OSPFv2 router.
Router (compound module)	IP router.
RSVP_LSR (compound module)	An RSVP-TE capable router.
RTPHost (compound module)	(no description)
StandardHost (compound module)	IP host with SCTP, TCP, UDP layers and applications.
StandardHostWithDLDuplicatesGenerator (compound module)	IP host with SCTP, TCP, UDP layers and applications AND PPPInterfaceWithDLDuplicatesGenerator.
StandardHostWithDLThruputMeter (compound module)	IP host with SCTP, TCP, UDP layers and applications AND PPPInterfaceWithDLThruputMeter.
StandardHostWithULDropsGenerator (compound module)	IP host with SCTP, TCP, UDP layers and applications AND PPPInterfaceWithULDropsGenerator.
StandardHostWithULThruputMeter (compound module)	IP host with SCTP, TCP, UDP layers and applications AND PPPInterfaceWithULThruputMeter.
TCPSpoofingHost (compound module)	IP host with TCPSpoof in the application layer.

Parameters:

Name	Type	Default value	Description
proxyARP	bool	true

Properties:

Name	Value	Description
display	i=block/fork

Gates:

Name	Direction	Description
ifIn [ ]	input
tcpIn	input
udpIn	input
sctpIn	input	I.R.
rsvpIn	input
ospfIn	input
pingIn	input
ifOut [ ]	output
tcpOut	output
udpOut	output
sctpOut	output	I.R.
rsvpOut	output
ospfOut	output
pingOut	output

Unassigned submodule parameters:

Name	Type	Default value	Description
ip.procDelay	double	0s
arp.retryTimeout	double	1s	number seconds ARP waits between retries to resolve an IP address
arp.retryCount	int	3	number of times ARP will attempt to resolve an IP address
arp.cacheTimeout	double	120s	number seconds unused entries in the cache will time out

Source code:

//
// Network layer of an \IP node.
//
// Interfaces to transport layer: TCP, UDP, echo/ping, RSVP
//
module NetworkLayer
{
    parameters:
        bool proxyARP = default(true);
        @display("i=block/fork");
    gates:
        input ifIn[] @labels(IPDatagram);
        input tcpIn @labels(TCPSegment,IPControlInfo/down);
        input udpIn @labels(UDPPacket,IPControlInfo/down);
        input sctpIn @labels(IPControlInfo/down,SCTPPacket);   //I.R.
        input rsvpIn @labels(IPControlInfo/down);
        input ospfIn @labels(IPControlInfo/down);
        input pingIn;
        output ifOut[];
        output tcpOut @labels(TCPSegment,IPControlInfo/up);
        output udpOut @labels(UDPPacket,IPControlInfo/up);
        output sctpOut @labels(IPControlInfo/up,SCTPPacket); //I.R.
        output rsvpOut @labels(IPControlInfo/up);
        output ospfOut @labels(IPControlInfo/up);
        output pingOut;

    submodules:
        ip: IP {
            parameters:
                timeToLive = 32;
                multicastTimeToLive = 32;
                fragmentTimeout = 60s;
                protocolMapping = "6:0,17:1,1:2,2:3,46:4,89:5,132:6";   //I.R.
                @display("p=85,95;q=queue");
            gates:
                transportIn[7]; //I.R.
                transportOut[7];
                queueIn[sizeof(ifIn)];
        }
        arp: ARP {
            parameters:
                proxyARP = proxyARP;
                @display("p=163,206;q=pendingQueue");
            gates:
                nicOut[sizeof(ifOut)];
        }
        icmp: ICMP {
            parameters:
                @display("p=160,63");
        }
        igmp: IGMP {
            parameters:
                @display("p=160,122");
        }
        errorHandling: ErrorHandling {
            parameters:
                @display("p=239,63");
        }
    connections allowunconnected:
        // transport Layer
        ip.transportOut[0] --> tcpOut;
        ip.transportIn[0] <-- tcpIn;

        ip.transportOut[1] --> udpOut;
        ip.transportIn[1] <-- udpIn;

        ip.transportOut[2] --> icmp.localIn;
        ip.transportIn[2] <-- icmp.sendOut;

        ip.transportOut[3] --> igmp.localIn;
        ip.transportIn[3] <-- igmp.sendOut;

        ip.transportOut[4] --> rsvpOut;
        ip.transportIn[4] <-- rsvpIn;

        ip.transportOut[5] --> ospfOut;
        ip.transportIn[5] <-- ospfIn;

        ip.transportOut[6] --> sctpOut;     //I.R.
        ip.transportIn[6] <-- sctpIn;

        icmp.pingOut --> pingOut;
        icmp.pingIn <-- pingIn;

        icmp.errorOut --> errorHandling.in;

        ip.queueOut --> arp.ipIn;

        // L2 interfaces to IP and from ARP
        for i=0..sizeof(ifOut)-1 {
            ifIn[i] --> { @display("m=s"); } --> ip.queueIn[i];
            ifOut[i] <-- { @display("m=s"); } <-- arp.nicOut[i];
        }
}