NextHopForwarding¶

simple module NextHopForwarding

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

Usage diagram¶

Inheritance 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	“{nextHopStatusText}”	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);
        displayStringTextFormat = default("{nextHopStatusText}");
        @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