EtherTrafGen

simple module

A simple traffic generator for the Ethernet model and the 802.11 model, and generally for any L2 model that accepts Ieee802SapReq tag on packets. It should be connected directly to EtherEncap module.

Used in compound modules

Name	Type	Description
EtherHost2	compound module	An example host with one Ethernet interface and an Ethernet traffic generator directly connected to it. This host model does not contain higher layer protocols (IP, TCP). By default is configured to use half-duplex MAC (CSMA/CD).

Parameters

Name	Type	Default value	Description
destAddress	string	""	destination MAC address, or module path name of destination station; empty means off
ssap	int	-1	llc ssap to set on outgoing packets
dsap	int	-1	llc dsap to set on outgoing packets
startTime	double	this.sendInterval	time of sending the first packet
stopTime	double	-1s	time of finishing sending, negative values mean forever
sendInterval	double		interval between sending bursts
numPacketsPerBurst	int	1	number of packets to send per burst (packets within a burst are sent at the same simulation time)
packetLength	int		length of packets to send
stopOperationExtraTime	double	-1s	extra time after lifecycle stop operation finished
stopOperationTimeout	double	2s	timeout value for lifecycle stop operation

Properties

Name	Value	Description
lifecycleSupport
display	i=block/app

Gates

Name	Direction	Size	Description
in	input
out	output

Signals

Name	Type	Unit
packetReceived	inet::Packet
packetSent	inet::Packet

Statistics

Name	Title	Source	Record	Unit	Interpolation Mode
packetReceived	packets received	packetReceived	count, sum(packetBytes), vector(packetBytes)		none
packetSent	packets sent	packetSent	count, sum(packetBytes), vector(packetBytes)		none
endToEndDelay	end-to-end delay	dataAge(packetReceived)	histogram, vector	s	none

Source code

//
// A simple traffic generator for the Ethernet model and the 802.11 model, and
// generally for any L2 model that accepts ~Ieee802SapReq tag on packets. It
// should be connected directly to ~EtherEncap module.
//
simple EtherTrafGen
{
    parameters:
        string destAddress = default("");  // destination MAC address, or module path name of destination station; empty means off
        int ssap = default(-1);  // llc ssap to set on outgoing packets
        int dsap = default(-1);  // llc dsap to set on outgoing packets
        double startTime @unit(s) = default(this.sendInterval);  // time of sending the first packet
        double stopTime @unit(s) = default(-1s);  // time of finishing sending, negative values mean forever
        volatile double sendInterval @unit(s);  // interval between sending bursts
        volatile int numPacketsPerBurst = default(1);  // number of packets to send per burst (packets within a burst are sent at the same simulation time)
        volatile int packetLength @unit(B);  // length of packets to send
        @lifecycleSupport;
        double stopOperationExtraTime @unit(s) = default(-1s);    // extra time after lifecycle stop operation finished
        double stopOperationTimeout @unit(s) = default(2s);    // timeout value for lifecycle stop operation
        @display("i=block/app");
        @signal[packetSent](type=inet::Packet);
        @signal[packetReceived](type=inet::Packet);
        @statistic[packetReceived](title="packets received"; source=packetReceived; record=count,"sum(packetBytes)","vector(packetBytes)"; interpolationmode=none);
        @statistic[packetSent](title="packets sent"; source=packetSent; record=count,"sum(packetBytes)","vector(packetBytes)"; interpolationmode=none);
        @statistic[endToEndDelay](title="end-to-end delay"; source="dataAge(packetReceived)"; unit=s; record=histogram,vector; interpolationmode=none);
    gates:
        input in @labels(Ieee802Ctrl/up);
        output out @labels(Ieee802Ctrl/down);
}

File: src/inet/applications/ethernet/EtherTrafGen.ned