Simple Module DropTailQueue

Package: inet.common.queue
File: src/inet/common/queue/DropTailQueue.ned

C++ definition

Drop-tail queue, to be used in network interfaces. Conforms to the IOutputQueue interface.

Usage diagram:

The following diagram shows usage relationships between types. Unresolved types are missing from the diagram.

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
DiffservQueue	compound module	This is an example queue, that can be used in interfaces of DS core and edge nodes to support the AFxy (RFC 2597) and EF (RFC 3246) PHBs.
DSQueue1	compound module	Diffserv Queue used in Experiment 1.1 - 1.6 and 5.1.
DSQueue2	compound module	Diffserv Queue used in Experiment 2.1 - 2.4.
EtherQoSQueue	compound module	Queue module that gives the PAUSE frames a higher priority, and can be parametrized with an IOutputQueue for serving the other frames.

Parameters:

Name	Type	Default value	Description
frameCapacity	int	100
queueName	string	"l2queue"	name of the inner cQueue object, used in the 'q' tag of the display string

Properties:

Name	Value	Description
display	i=block/queue

Gates:

Name	Direction	Size	Description
in	input
out	output

Signals:

Name	Type	Unit
queueLength	long
queueingTime	simtime_t	s
dequeuePk	cPacket
dropPkByQueue	cPacket
rcvdPk	cPacket
enqueuePk	cPacket

Statistics:

Name	Title	Source	Record	Interpolation Mode
queueLength	queue length		max, timeavg, vector	sample-hold
queueingTime	queueing time		histogram, vector	none
dropPk	dropped packets	dropPkByQueue	count, sum(packetBytes), vector(packetBytes)	none
rcvdPk	received packets		count, sum(packetBytes), vector(packetBytes)	none

Source code:

//
// Drop-tail queue, to be used in network interfaces.
// Conforms to the ~IOutputQueue interface.
//
simple DropTailQueue like IOutputQueue
{
    parameters:
        int frameCapacity = default(100);
        string queueName = default("l2queue"); // name of the inner cQueue object, used in the 'q' tag of the display string
        @display("i=block/queue");
        @signal[rcvdPk](type=cPacket);
        @signal[enqueuePk](type=cPacket);
        @signal[dequeuePk](type=cPacket);
        @signal[dropPkByQueue](type=cPacket);
        @signal[queueingTime](type=simtime_t; unit=s);
        @signal[queueLength](type=long);
        @statistic[rcvdPk](title="received packets"; record=count,"sum(packetBytes)","vector(packetBytes)"; interpolationmode=none);
        @statistic[dropPk](title="dropped packets"; source=dropPkByQueue; record=count,"sum(packetBytes)","vector(packetBytes)"; interpolationmode=none);
        @statistic[queueingTime](title="queueing time"; record=histogram,vector; interpolationmode=none);
        @statistic[queueLength](title="queue length"; record=max,timeavg,vector; interpolationmode=sample-hold);
    gates:
        input in;
        output out;
}