C++ definition

A simplified next hop forwarding that routes datagrams using different kinds of network addresses.

Inheritance diagram

The following diagram shows inheritance relationships for this type. Unresolved types are missing from the diagram.

Used in compound modules

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

Extends

Name	Type	Description
SimpleModule	simple module	Base module for all INET simple modules.

Parameters

Name	Type	Default value	Description
displayStringTextFormat	string	""	Determines the text that is written on top of the submodule, supports displaying pars, watches, and module-specific information
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
class	NextHopForwarding
display	i=block/routing

Gates

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

Signals

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

Source code

//
// A simplified next hop forwarding that routes
// datagrams using different kinds of network addresses.
//
simple NextHopForwarding extends SimpleModule
{
    parameters:
        @class(NextHopForwarding);
        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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