IPacketScheduler

module interface

This module interface is implemented by packet scheduler modules. A packet scheduler is a passive module which has multiple active inputs and one passive output. Packets pulled from the passive output are provided by one of the inputs without any delay and reordering.

Inheritance diagram

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

Implemented by

Name	Type	Description
ContentBasedScheduler	simple module	This module connects one packet collector to multiple packet providers. It can be pulled for packets by the connected packet collector. When this happens, the scheduler pulls a packet from one of its packet providers based on the configured packet filters. The first matching expression determines the index of the input gate.
LabelScheduler	simple module	This module schedules packets based on the attached labels in a LabelsTag.
MarkovScheduler	simple module	This module implements a packet scheduler using a Markov process that has as many states as input gates the scheduler has. The input gate for the next packet is determined by the current state of the Markov process.
PacketScheduler	simple module	This module connects one packet collector to multiple packet providers. It can be pulled for packets by the connected packet collector. When this happens, the scheduler pulls a packet from one of its packet providers based on the configured scheduler function. The packet scheduler function takes a list of packet providers and returns an integer which in turn is used for determining the input gate.
PriorityScheduler	simple module	This scheduler pulls packets from the first non-empty among its connected packet providers.
WrrScheduler	simple module	This module implements weighted round-robin scheduling.

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.
GatingPriorityQueue	compound module	This module implements a priority queue with multiple inner queues each having its own periodic gate for packet selection and an optional shared memory buffer.
Ieee8021qTimeAwareShaper	compound module	This module implements the IEEE 802.1Q time aware shaper.
PriorityQueue	compound module	This module implements a priority queue with multiple inner queues and an optional shared memory buffer.
PriorityShaper	compound module	This 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.
TelnetClientApp	compound module	This client application contains a configurable pre-composed telnet traffic source and traffic sink.

Extends

Name	Type	Description
IPassivePacketSource	module interface	This module interface must be implemented by passive packet source modules. A passive packet source, also called a provider, has one output that must be connected to an active packet sink module. The connected active packet sink is expected to pull packets from the passive packet source over time.

Properties

Name	Value	Description
display	i=block/join

Source code

//
// This module interface is implemented by packet scheduler modules. A packet
// scheduler is a passive module which has multiple active inputs and one
// passive output. Packets pulled from the passive output are provided by
// one of the inputs without any delay and reordering.
//
moduleinterface IPacketScheduler extends IPassivePacketSource
{
    parameters:
        @display("i=block/join");
    gates:
        input in[] @labels(pull);
}

File: src/inet/queueing/contract/IPacketScheduler.ned