tcp-ecn-example.cc File Reference

#include "ns3/applications-module.h"
#include "ns3/core-module.h"
#include "ns3/flow-monitor-module.h"
#include "ns3/internet-module.h"
#include "ns3/network-module.h"
#include "ns3/point-to-point-module.h"
#include "ns3/traffic-control-module.h"
#include <filesystem>

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Functions
void	CheckQueueSize (Ptr< QueueDisc > qd)
	Checks the queue size of the queue discipline.
static void	CwndTracer (Ptr< OutputStreamWrapper > stream, uint32_t oldval, uint32_t newval)
	Writes the cWnd to the output stream.
void	TraceCwnd (uint32_t nodeId, uint32_t socketId)
	Traces the congestion window of the socket.
static void	TraceThroughput (Ptr< FlowMonitor > monitor)
	Traces the throughput of the flow monitor.

Variables
std::string	dir
	The directory where the output files will be stored.
uint32_t	prev = 0
	Previous transmitted bytes.
Time	prevTime
	Previous time for throughput calculation.
std::ofstream	queueSize
	The stream where the queue size will be stored.
std::ofstream	throughput
	The stream where the throughput will be stored.

Detailed Description

Usage

$ ./ns3 run "tcp-ecn-example [Program Options]"

Program Options

--tcpTypeId

Transport protocol to use: TcpNewReno,TcpCubic, TcpLinuxReno [TcpCubic]

--delAckCount

Delayed ACK count [2]

--enablePcap

Enable/Disable pcap file generation [false]

--useEcn

Enable/Disable ECN [true]

--useAbe

Enable/Disable ABE [false]

--stopTime

Stop time for applications / simulation time will be stopTime + 1 [+1.66667min]

Definition in file tcp-ecn-example.cc.

Function Documentation

CheckQueueSize()

void CheckQueueSize

(

Ptr< QueueDisc >

qd

)

Checks the queue size of the queue discipline.

Parameters

qd	The queue discipline to check.

Definition at line 97 of file tcp-ecn-example.cc.

References CheckQueueSize(), ns3::Time::GetSeconds(), ns3::Simulator::Now(), queueSize, ns3::Simulator::Schedule(), and ns3::Seconds().

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CwndTracer()

static void CwndTracer ( Ptr< OutputStreamWrapper > stream, uint32_t oldval, uint32_t newval )

static

Writes the cWnd to the output stream.

Parameters

stream	The output stream to write to.
oldval	The old congestion window value.
newval	The new congestion window value.

Definition at line 111 of file tcp-ecn-example.cc.

References ns3::Time::GetSeconds(), and ns3::Simulator::Now().

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TraceCwnd()

void TraceCwnd	(	uint32_t	nodeId,
		uint32_t	socketId )

Traces the congestion window of the socket.

Parameters

nodeId	The node ID of the socket.
socketId	The socket ID of the socket.

Definition at line 122 of file tcp-ecn-example.cc.

References ns3::Config::ConnectWithoutContext(), ns3::AsciiTraceHelper::CreateFileStream(), CwndTracer(), dir, and ns3::MakeBoundCallback().

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TraceThroughput()

static void TraceThroughput ( Ptr< FlowMonitor > monitor )

static

Traces the throughput of the flow monitor.

Parameters

monitor

The flow monitor to trace.

Definition at line 73 of file tcp-ecn-example.cc.

References ns3::Time::GetSeconds(), ns3::Now(), prev, prevTime, ns3::Simulator::Schedule(), ns3::Seconds(), throughput, TraceThroughput(), and ns3::Time::US.

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Variable Documentation

dir

std::string dir

The directory where the output files will be stored.

Definition at line 61 of file tcp-ecn-example.cc.

prev

uint32_t prev = 0

Previous transmitted bytes.

Definition at line 65 of file tcp-ecn-example.cc.

prevTime

Time prevTime

Previous time for throughput calculation.

Definition at line 66 of file tcp-ecn-example.cc.

queueSize

std::ofstream queueSize

The stream where the queue size will be stored.

Definition at line 63 of file tcp-ecn-example.cc.

throughput

std::ofstream throughput

The stream where the throughput will be stored.

Definition at line 62 of file tcp-ecn-example.cc.