PriorityScheduler¶

simple module PriorityScheduler

This scheduler pulls packets from the first non-empty among its connected packet providers.

Usage diagram¶

Inheritance diagram¶

Used in compound modules¶

Name	Type	Description
EthernetQosQueue	compound module	Queue module that gives the PAUSE frames a higher priority, and can be parametrized with an IPacketQueue for serving the data frames.
EthernetQosRedQueue	compound module	Queue module that gives the PAUSE frames a higher priority, and using Random Early Detection algorithm on data frames, and can be parametrized with an IPacketQueue for serving the data frames.
EthernetPreemptingMacLayer	compound module	(no description)
CompoundPendingQueue	compound module	Implements a prioritized queue system for IEEE 802.11 MAC frames. Uses a classifier to separate incoming packets into three queues: management frames (highest priority), multicast frames (medium priority), and unicast frames (lowest priority). A priority scheduler then selects packets from these queues in order of priority.
Ieee8021qTimeAwareShaper	compound module	Implements the IEEE 802.1Q time aware shaper.
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.
GatingPriorityQueue	compound module	Implements a priority queue with multiple inner queues each having its own periodic gate for packet selection and an optional shared memory buffer.
PriorityQueue	compound module	Implements a priority queue with multiple inner queues and an optional shared memory buffer.
PriorityShaper	compound module	Combines a classifier, a scheduler, and several traffic shapers into a single packet shaper. Packets are classified into one of the traffic shapers, and the scheduler prioritizes among them.

Extends¶

Name	Type	Description
PacketSchedulerBase	simple module	Base module for various packet scheduler modules. Derived modules must implement a single packet scheduler function which determines the index of the input gate for the pulled packet.

Parameters¶

Name	Type	Default value	Description
displayStringTextFormat	string	“scheduled %p pk (%l)”	Determines the text that is written on top of the submodule, supports displaying pars, watches, and module-specific information
reverseOrder	bool	false

Properties¶

Name	Value	Description
class	PriorityScheduler
display	i=block/join

Gates¶

Name	Direction	Size	Description
in [ ]	input
out	output

Signals¶

Name	Type	Unit	Description
packetPulled	inet::Packet

Statistics¶

Name	Title	Source	Record	Unit	Interpolation Mode	Description
dataRate	data rate	throughput(packetPulled)	vector	bps	linear	the statistical value is the data rate of the scheduled packets
packetLengths	packet lengths	packetLength(packetPulled)	sum,histogram,vector	b	none	the statistical value is the length of the scheduled packet
packets	packets	packetPulled	count	pk		the statistical value is the scheduled packet

Source code¶

//
// This scheduler pulls packets from the first non-empty among its connected
// packet providers.
//
simple PriorityScheduler extends PacketSchedulerBase like IPacketScheduler
{
    parameters:
        @class(PriorityScheduler);
}

File: src/inet/queueing/scheduler/PriorityScheduler.ned