EtherQueue

compound module

Queue module that gives the PAUSE frames a higher priority.

Inheritance diagram

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

Extends

Name	Type	Description
DropTailQueue	simple module	This module is a limited packet queue which drops packets at the tail of the queue.

Parameters

Name	Type	Default value	Description
displayStringTextFormat	string	"contains %p pk (%l) pushed %u\npopped %o removed %r dropped %d"	determines display string text above the submodule
packetCapacity	int	100	maximum number of packets in the queue, no limit by default
dataCapacity	int	-1b	maximum total length of packets in the queue, no limit by default
dropperClass	string	"inet::queueing::PacketAtCollectionEndDropper"	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
comparatorClass	string	"inet::EthernetFrameTypeComparator"	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
bufferModule	string	""	relative module path to the IPacketBuffer module used by this queue, implicit buffer by default

Properties

Name	Value	Description
display	i=block/queue
class	PacketQueue

Gates

Name	Direction	Size	Description
in	input
out	output

Signals

Name	Type	Unit
packetRemoved	inet::Packet
packetPushed	inet::Packet
packetDropped	inet::Packet
packetPopped	inet::Packet

Statistics

Name	Title	Source	Record	Unit	Interpolation Mode
packetRemoved	packets removed		count, sum(packetBytes), vector(packetBytes)		none
queueLength	queue length	count(packetPushed) - count(packetPopped) - count(packetRemoved) - count(packetDropped)	max, timeavg, vector		sample-hold
queueingTime	queueing times	queueingTime(packetPopped)	histogram, vector	s	none
packetPushed	packet pushed		count, sum(packetBytes), vector(packetBytes)		none
packetDropQueueOverflow	packet drops: queue overflow	packetDropReasonIsQueueOverflow(packetDropped)	count, sum(packetBytes), vector(packetBytes)		none
packetPopped	packet popped		count, sum(packetBytes), vector(packetBytes)		none

Source code

//
// Queue module that gives the PAUSE frames a higher priority.
//
//# TODO: rename to EtherQosQueue or keep name as it is?
module EtherQueue extends DropTailQueue
{
    parameters:
        comparatorClass = default("inet::EthernetFrameTypeComparator");
}

File: src/inet/linklayer/ethernet/EtherQosQueue.ned