WrrClassifier

simple module

This module implements weighted round-robin classifier.

There is a weight associated with each output gate. Initially each output gate gets as many tokens as their weight. When a packet is pushed then the first output gate is selected that has a packet and enough tokens, and one token is consumed. When there is not enough tokens to classify a packet, then each token bucket is filled up.

Inheritance diagram

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

Extends

Name	Type	Description
PacketClassifierBase	simple module	This is a base module for various packet classifier modules. Derived modules must implement a single packet classifier function which determines the index of the output gate for the next pushed packet.

Parameters

Name	Type	Default value	Description
displayStringTextFormat	string	"classified %p pk (%l)"	determines the text that is written on top of the submodule
reverseOrder	bool	false
weights	string

Properties

Name	Value	Description
display	i=block/classifier
class	WrrClassifier

Gates

Name	Direction	Size	Description
in	input
out [ ]	output

Signals

Name	Type	Unit
packetPushed	inet::Packet

Statistics

Name	Title	Source	Record	Unit	Interpolation Mode
packetLengths	packet lengths	packetLength(packetPushed)	sum, histogram, vector	b	none
dataRate	data rate	throughput(packetPushed)	vector	bps	linear
packets	packets	packetPushed	count	pk

Direct method calls (observed)

call to	function	info
PacketQueue	inet::queueing::PacketQueue::pushPacket	pushPacket
PassivePacketSink	inet::queueing::PassivePacketSink::pushPacket	pushPacket
ActivePacketSource	inet::queueing::ActivePacketSource::handleCanPushPacketChanged	handleCanPushPacketChanged

Called methods (observed)

function	info	call from
inet::queueing::WrrClassifier::handleCanPushPacketChanged	handleCanPushPacketChanged	PacketQueue, PassivePacketSink
inet::queueing::WrrClassifier::pushPacket	pushPacket	PriorityQueue, ActivePacketSource, inet.tutorials.queueing.ExampleCompoundPriorityQueue

Pushed in messages (observed)

gate	msg	kind	ctrl	srcModule	tags
in	Packet	0		ActivePacketSource	DirectionTag, PacketProtocolTag

Push out messages (observed)

gate	msg	kind	ctrl	destModule	tags
out[]	Packet	0		PacketQueue	DirectionTag, PacketProtocolTag
out[]	Packet	0		PassivePacketSink	DirectionTag, PacketProtocolTag

Source code

//
// This module implements weighted round-robin classifier.
//
// There is a weight associated with each output gate.
// Initially each output gate gets as many tokens as their
// weight. When a packet is pushed then the first output
// gate is selected that has a packet and enough tokens,
// and one token is consumed. When there is not enough
// tokens to classify a packet, then each token bucket
// is filled up.
//
simple WrrClassifier extends PacketClassifierBase like IPacketClassifier
{
    parameters:
        string weights;
        @class(WrrClassifier);
}

File: src/inet/queueing/classifier/WrrClassifier.ned