WrrClassifier

Package: inet.queueing.classifier

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 tofunctioninfo
PacketQueueinet::queueing::PacketQueue::pushPacketpushPacket
PassivePacketSinkinet::queueing::PassivePacketSink::pushPacketpushPacket
ActivePacketSourceinet::queueing::ActivePacketSource::handleCanPushPacketChangedhandleCanPushPacketChanged

Called methods (observed)

functioninfocall from
inet::queueing::WrrClassifier::handleCanPushPacketChangedhandleCanPushPacketChangedPacketQueue, PassivePacketSink
inet::queueing::WrrClassifier::pushPacketpushPacketPriorityQueue, ActivePacketSource, inet.tutorials.queueing.ExampleCompoundPriorityQueue

Pushed in messages (observed)

gatemsgkindctrlsrcModuletags
inPacket0ActivePacketSourceDirectionTag, PacketProtocolTag

Push out messages (observed)

gatemsgkindctrldestModuletags
out[]Packet0PacketQueueDirectionTag, PacketProtocolTag
out[]Packet0PassivePacketSinkDirectionTag, 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