TcpIllinois C-AIMD algorithm tests. More...

Inheritance diagram for TcpIllinoisTest:

Collaboration diagram for TcpIllinoisTest:

Public Member Functions
	TcpIllinoisTest (uint32_t cWnd, uint32_t ssThresh, uint32_t segmentSize, uint32_t cntRtt, Time maxRtt, uint32_t segmentsAcked, SequenceNumber32 nextTxSeq, SequenceNumber32 lastAckedSeq, const std::string &name)
	Constructor.

Public Member Functions inherited from ns3::TestCase
	TestCase (const TestCase &)=delete

virtual	~TestCase ()
	Destructor.

std::string	GetName () const

TestCase &	operator= (const TestCase &)=delete

Private Member Functions
void	CalculateAlpha (Ptr< TcpIllinois > cong, double da, double dm)
	Calculate the TCP Illinois alpha param.

Time	CalculateAvgDelay ()
	Calculate the average delay.

void	CalculateBeta (Ptr< TcpIllinois > cong, double da, double dm)
	Calculate the TCP Illinois beta param.

Time	CalculateMaxDelay ()
	Calculate the maximum delay.

void	DoRun () override
	Implementation to actually run this TestCase.

void	GetSsThresh ()
	brief Get and check the SSH threshold.

void	IncreaseWindow (Ptr< TcpIllinois > cong)
	Increases the TCP window.

void	RecalcParam (Ptr< TcpIllinois > cong)
	Recalculate the internal TCP Illinois params.

Private Attributes
uint32_t	m_ackCnt
	ACK counter.

double	m_alpha
	TCP Illinois alpha parameter.

Time	m_baseRtt
	Base RTT.

double	m_beta
	TCP Illinois beta parameter.

uint32_t	m_cntRtt
	RTT counter.

uint32_t	m_cWnd
	Congestion window.

SequenceNumber32	m_lastAckedSeq
	Last ACKed sequence number.

Time	m_maxRtt
	Max RTT.

SequenceNumber32	m_nextTxSeq
	Next Tx sequence number.

bool	m_rttAbove
	RTT above threshold.

uint8_t	m_rttLow
	RTT low counter.

uint32_t	m_segmentsAcked
	Number of segments ACKed.

uint32_t	m_segmentSize
	Segment size.

uint32_t	m_ssThresh
	Slow Start Threshold.

Time	m_sumRtt
	Sum of all the RTTs.

Additional Inherited Members
Public Types inherited from ns3::TestCase
enum class	Duration { QUICK = 1 , EXTENSIVE = 2 , TAKES_FOREVER = 3 }
	How long the test takes to execute. More...

Protected Member Functions inherited from ns3::TestCase
	TestCase (std::string name)
	Constructor.

void	AddTestCase (TestCase *testCase, Duration duration=Duration::QUICK)
	Add an individual child TestCase to this test suite.

TestCase *	GetParent () const
	Get the parent of this TestCase.

bool	IsStatusFailure () const
	Check if any tests failed.

bool	IsStatusSuccess () const
	Check if all tests passed.

void	SetDataDir (std::string directory)
	Set the data directory where reference trace files can be found.

void	ReportTestFailure (std::string cond, std::string actual, std::string limit, std::string message, std::string file, int32_t line)
	Log the failure of this TestCase.

bool	MustAssertOnFailure () const
	Check if this run should assert on failure.

bool	MustContinueOnFailure () const
	Check if this run should continue on failure.

std::string	CreateDataDirFilename (std::string filename)
	Construct the full path to a file in the data directory.

std::string	CreateTempDirFilename (std::string filename)
	Construct the full path to a file in a temporary directory.

Detailed Description

TcpIllinois C-AIMD algorithm tests.

Definition at line 30 of file tcp-illinois-test.cc.

Constructor & Destructor Documentation

◆ TcpIllinoisTest()

TcpIllinoisTest::TcpIllinoisTest	(	uint32_t	cWnd,
		uint32_t	ssThresh,
		uint32_t	segmentSize,
		uint32_t	cntRtt,
		Time	maxRtt,
		uint32_t	segmentsAcked,
		SequenceNumber32	nextTxSeq,
		SequenceNumber32	lastAckedSeq,
		const std::string &	name )

Constructor.

Parameters

cWnd	Congestion window.
ssThresh	Slow Start Threshold.
segmentSize	Segment size.
cntRtt	RTT counter.
maxRtt	Max RTT.
segmentsAcked	Number of segments ACKed.
nextTxSeq	Next Tx sequence number.
lastAckedSeq	Last ACKed sequence number.
name	Test description.

Definition at line 113 of file tcp-illinois-test.cc.

References ns3::TestCase::TestCase(), m_ackCnt, m_alpha, m_baseRtt, m_beta, m_cntRtt, m_cWnd, m_lastAckedSeq, m_maxRtt, m_nextTxSeq, m_rttAbove, m_rttLow, m_segmentsAcked, m_segmentSize, m_ssThresh, m_sumRtt, ns3::MilliSeconds(), and segmentSize.

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Member Function Documentation

◆ CalculateAlpha()

void TcpIllinoisTest::CalculateAlpha	(	Ptr< TcpIllinois >	cong,
		double	da,
		double	dm )

private

Calculate the TCP Illinois alpha param.

Parameters

cong	The congestion control.
da	Average delay (in milliseconds).
dm	Maximum delay (in milliseconds).

Definition at line 259 of file tcp-illinois-test.cc.

References ns3::DoubleValue::Get(), ns3::UintegerValue::Get(), m_alpha, m_rttAbove, m_rttLow, and NS_LOG_INFO.

Referenced by RecalcParam().

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◆ CalculateAvgDelay()

Time TcpIllinoisTest::CalculateAvgDelay ( )

private

Calculate the average delay.

Returns: The average delay.

Definition at line 253 of file tcp-illinois-test.cc.

References m_baseRtt, m_cntRtt, and m_sumRtt.

Referenced by RecalcParam().

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◆ CalculateBeta()

void TcpIllinoisTest::CalculateBeta	(	Ptr< TcpIllinois >	cong,
		double	da,
		double	dm )

private

Calculate the TCP Illinois beta param.

Parameters

cong	The congestion control.
da	Average delay (in milliseconds).
dm	Maximum delay (in milliseconds).

Definition at line 295 of file tcp-illinois-test.cc.

References ns3::DoubleValue::Get(), m_beta, and NS_LOG_INFO.

Referenced by RecalcParam().

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◆ CalculateMaxDelay()

Time TcpIllinoisTest::CalculateMaxDelay ( )

private

Calculate the maximum delay.

Returns: The maximum delay.

Definition at line 247 of file tcp-illinois-test.cc.

References m_baseRtt, and m_maxRtt.

Referenced by RecalcParam().

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◆ DoRun()

void TcpIllinoisTest::DoRun ( )

overrideprivatevirtual

Implementation to actually run this TestCase.

Subclasses should override this method to conduct their tests.

Implements ns3::TestCase.

Definition at line 142 of file tcp-illinois-test.cc.

References ns3::CreateObject(), GetSsThresh(), IncreaseWindow(), m_baseRtt, m_cntRtt, m_cWnd, m_lastAckedSeq, m_maxRtt, m_nextTxSeq, m_segmentsAcked, m_segmentSize, m_ssThresh, m_sumRtt, and NS_TEST_ASSERT_MSG_EQ.

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◆ GetSsThresh()

void TcpIllinoisTest::GetSsThresh ( )

private

brief Get and check the SSH threshold.

Definition at line 325 of file tcp-illinois-test.cc.

References m_beta, m_cWnd, m_segmentSize, m_ssThresh, and NS_LOG_DEBUG.

Referenced by DoRun().

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◆ IncreaseWindow()

void TcpIllinoisTest::IncreaseWindow ( Ptr< TcpIllinois > cong )

private

Increases the TCP window.

Parameters

cong	The congestion control.

Definition at line 181 of file tcp-illinois-test.cc.

References m_ackCnt, m_alpha, m_cWnd, m_lastAckedSeq, m_nextTxSeq, m_segmentsAcked, m_segmentSize, m_ssThresh, NS_LOG_INFO, and RecalcParam().

Referenced by DoRun().

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◆ RecalcParam()

void TcpIllinoisTest::RecalcParam ( Ptr< TcpIllinois > cong )

private

Recalculate the internal TCP Illinois params.

Parameters

cong	The congestion control.

Definition at line 222 of file tcp-illinois-test.cc.

References CalculateAlpha(), CalculateAvgDelay(), CalculateBeta(), CalculateMaxDelay(), ns3::DoubleValue::Get(), ns3::UintegerValue::Get(), ns3::Time::GetMilliSeconds(), m_alpha, m_cntRtt, m_cWnd, and NS_LOG_INFO.

Referenced by IncreaseWindow().

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Member Data Documentation

◆ m_ackCnt

uint32_t TcpIllinoisTest::m_ackCnt

private

ACK counter.

Definition at line 110 of file tcp-illinois-test.cc.

Referenced by TcpIllinoisTest(), and IncreaseWindow().

◆ m_alpha

double TcpIllinoisTest::m_alpha

private

TCP Illinois alpha parameter.

Definition at line 104 of file tcp-illinois-test.cc.

Referenced by TcpIllinoisTest(), CalculateAlpha(), IncreaseWindow(), and RecalcParam().

◆ m_baseRtt

Time TcpIllinoisTest::m_baseRtt

private

Base RTT.

Definition at line 99 of file tcp-illinois-test.cc.

Referenced by TcpIllinoisTest(), CalculateAvgDelay(), CalculateMaxDelay(), and DoRun().

◆ m_beta

double TcpIllinoisTest::m_beta

private

TCP Illinois beta parameter.

Definition at line 105 of file tcp-illinois-test.cc.

Referenced by TcpIllinoisTest(), CalculateBeta(), and GetSsThresh().

◆ m_cntRtt

uint32_t TcpIllinoisTest::m_cntRtt

private

RTT counter.

Definition at line 106 of file tcp-illinois-test.cc.

Referenced by TcpIllinoisTest(), CalculateAvgDelay(), DoRun(), and RecalcParam().

◆ m_cWnd

uint32_t TcpIllinoisTest::m_cWnd

private

Congestion window.

Definition at line 96 of file tcp-illinois-test.cc.

Referenced by TcpIllinoisTest(), DoRun(), GetSsThresh(), IncreaseWindow(), and RecalcParam().

◆ m_lastAckedSeq

SequenceNumber32 TcpIllinoisTest::m_lastAckedSeq

private

Last ACKed sequence number.

Definition at line 103 of file tcp-illinois-test.cc.

Referenced by TcpIllinoisTest(), DoRun(), and IncreaseWindow().

◆ m_maxRtt

Time TcpIllinoisTest::m_maxRtt

private

Max RTT.

Definition at line 100 of file tcp-illinois-test.cc.

Referenced by TcpIllinoisTest(), CalculateMaxDelay(), and DoRun().

◆ m_nextTxSeq

SequenceNumber32 TcpIllinoisTest::m_nextTxSeq

private

Next Tx sequence number.

Definition at line 102 of file tcp-illinois-test.cc.

Referenced by TcpIllinoisTest(), DoRun(), and IncreaseWindow().

◆ m_rttAbove

bool TcpIllinoisTest::m_rttAbove

private

RTT above threshold.

Definition at line 108 of file tcp-illinois-test.cc.

Referenced by TcpIllinoisTest(), and CalculateAlpha().

◆ m_rttLow

uint8_t TcpIllinoisTest::m_rttLow

private

RTT low counter.

Definition at line 109 of file tcp-illinois-test.cc.

Referenced by TcpIllinoisTest(), and CalculateAlpha().

◆ m_segmentsAcked

uint32_t TcpIllinoisTest::m_segmentsAcked

private

Number of segments ACKed.

Definition at line 101 of file tcp-illinois-test.cc.

Referenced by TcpIllinoisTest(), DoRun(), and IncreaseWindow().

◆ m_segmentSize

uint32_t TcpIllinoisTest::m_segmentSize

private

Segment size.

Definition at line 98 of file tcp-illinois-test.cc.

Referenced by TcpIllinoisTest(), DoRun(), GetSsThresh(), and IncreaseWindow().

◆ m_ssThresh

uint32_t TcpIllinoisTest::m_ssThresh

private

Slow Start Threshold.

Definition at line 97 of file tcp-illinois-test.cc.

Referenced by TcpIllinoisTest(), DoRun(), GetSsThresh(), and IncreaseWindow().

◆ m_sumRtt

Time TcpIllinoisTest::m_sumRtt

private

Sum of all the RTTs.

Definition at line 107 of file tcp-illinois-test.cc.

Referenced by TcpIllinoisTest(), CalculateAvgDelay(), and DoRun().

The documentation for this class was generated from the following file:

src/internet/test/tcp-illinois-test.cc

Public Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ TcpIllinoisTest()

Member Function Documentation

◆ CalculateAlpha()

◆ CalculateAvgDelay()

◆ CalculateBeta()

◆ CalculateMaxDelay()

◆ DoRun()

◆ GetSsThresh()

◆ IncreaseWindow()

◆ RecalcParam()

Member Data Documentation

◆ m_ackCnt

◆ m_alpha

◆ m_baseRtt

◆ m_beta

◆ m_cntRtt

◆ m_cWnd

◆ m_lastAckedSeq

◆ m_maxRtt

◆ m_nextTxSeq

◆ m_rttAbove

◆ m_rttLow

◆ m_segmentsAcked

◆ m_segmentSize

◆ m_ssThresh

◆ m_sumRtt