This module is a simplified next hop forwarding that routes datagrams using different kind of network addresses.

Author: Andras Varga

Used in compound modules

Name	Type	Description
NextHopNetworkLayer	compound module	This module provides a network layer for the next hop forwarding.

Parameters

Name	Type	Default value	Description
interfaceTableModule	string		The path to the InterfaceTable module
routingTableModule	string
arpModule	string
procDelay	double	0s
hopLimit	int	32
headerLength	int	10B

Properties

Name	Value	Description
display	i=block/routing

Gates

Name	Direction	Size	Description
transportIn	input
transportOut	output
queueIn	input
queueOut	output

Signals

Name	Type	Unit
packetDropped	inet::Packet
packetSentToUpper	inet::Packet

Source code

//
// This module is a simplified next hop forwarding that routes
// datagrams using different kind of network addresses.
//
// @author Andras Varga
//
simple NextHopForwarding
{
    parameters:
        string interfaceTableModule;   // The path to the InterfaceTable module
        string routingTableModule;
        string arpModule;
        double procDelay @unit(s) = default(0s);
        int hopLimit = default(32);
        int headerLength @unit(B) = default(10B);
        @display("i=block/routing");
        @signal[packetDropped](type=inet::Packet);
        @signal[packetSentToUpper](type=inet::Packet);
    gates:
        input transportIn @labels(TcpHeader,UdpHeader);
        output transportOut @labels(TcpHeader,UdpHeader);
        input queueIn @labels(NextHopDatagram);
        output queueOut @labels(NextHopDatagram);
}

File: src/inet/networklayer/nexthop/NextHopForwarding.ned

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