RedDropperTutorialStep

network

(no description)

Usage diagram

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

Properties

Name	Value	Description
isNetwork

Unassigned submodule parameters

Name	Type	Default value	Description
producer.displayStringTextFormat	string	"created %p pk (%l)"	determines the text that is written on top of the submodule
producer.packetNameFormat	string	"%a-%c"	see directives in module documentation
producer.packetRepresentation	string	"byteCount"	determines the chunk of the packet data
producer.packetLength	int
producer.packetData	int	-1
producer.attachCreationTimeTag	bool	true
producer.attachIdentityTag	bool	true
producer.attachDirectionTag	bool	true
producer.clockModule	string	""	relative path of a module that implements IClock(1,2); optional
producer.initialProductionOffset	double	0s
producer.productionInterval	double		elapsed time between subsequent packets pushed to the connected packet consumer
producer.scheduleForAbsoluteTime	bool	true	when a clock is used relative means that setting the clock will not affect the simulation time of the event
dropper.displayStringTextFormat	string	"dropped %d/%p pk (%k/%l)"	determines the text that is written on top of the submodule
dropper.backpressure	bool	false
dropper.collectionModule	string	""
dropper.wq	double	0.002	weight of the current queue length in the averaged queue length, in range [0.0, 1.0]
dropper.minth	double	5	minimum threshold for avg queue length
dropper.maxth	double	50	maximum threshold for avg queue length (=buffer capacity), in range (minth,packetCapacity]
dropper.maxp	double	0.02	maximum value for pbs, in range [0.0, 1.0]
dropper.pkrate	double	150	average packet rate for calculations when queue is empty
dropper.useEcn	bool	false	if enabled, packets are marked with ECN if applicable
dropper.packetCapacity	int	int(maxth)	packets are dropped if queue length is greater
queue.displayStringTextFormat	string	"contains %p pk (%l) pushed %u\npulled %o removed %r dropped %d"	determines the text that is written on top of the submodule
queue.packetCapacity	int	-1	maximum number of packets in the queue, no limit by default
queue.dataCapacity	int	-1b	maximum total length of packets in the queue, no limit by default
queue.dropperClass	string	""	determines which packets are dropped when the queue is overloaded, packets are not dropped by default; the parameter must be the name of a C++ class which implements the IPacketDropperFunction C++ interface and is registered via Register_Class
queue.comparatorClass	string	""	determines the order of packets in the queue, insertion order by default; the parameter must be the name of a C++ class which implements the IPacketComparatorFunction C++ interface and is registered via Register_Class
queue.bufferModule	string	""	relative module path to the IPacketBuffer module used by this queue, implicit buffer by default
collector.displayStringTextFormat	string	"received %p pk (%l)"	determines the text that is written on top of the submodule
collector.clockModule	string	""	relative path of a module that implements IClock(1,2); optional
collector.initialCollectionOffset	double	0s
collector.collectionInterval	double		elapsed time between subsequent packets pulled from the connected packet provider
collector.scheduleForAbsoluteTime	bool	true	when a clock is used relative means that setting the clock will not affect the simulation time of the event

Source code

network RedDropperTutorialStep
{
    submodules:
        producer: ActivePacketSource {
            @display("p=100,100");
        }
        dropper: RedDropper {
            @display("p=300,100");
        }
        queue: PacketQueue {
            @display("p=500,100");
        }
        collector: ActivePacketSink {
            @display("p=700,100");
        }
    connections:
        producer.out --> dropper.in;
        dropper.out --> queue.in;
        queue.out --> collector.in;
}

//-------------------------------------------------

File: tutorials/queueing/QueueingTutorial.ned