Testing the congestion avoidance increment on TCP ZeroWindow. More...

Inheritance diagram for TcpZeroWindowTest:

Collaboration diagram for TcpZeroWindowTest:

Public Member Functions
	TcpZeroWindowTest (const std::string &desc)
	Constructor. More...

Public Member Functions inherited from ns3::TcpGeneralTest
	TcpGeneralTest (const std::string &desc)
	TcpGeneralTest constructor. More...

	~TcpGeneralTest () override

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

virtual	~TestCase ()
	Destructor. More...

std::string	GetName () const

TestCase &	operator= (const TestCase &)=delete

Protected Member Functions
void	ConfigureEnvironment () override
	Change the configuration of the environment. More...

void	ConfigureProperties () override
	Change the configuration of the socket properties. More...

Ptr< TcpSocketMsgBase >	CreateReceiverSocket (Ptr< Node > node) override
	Create and install the socket to install on the receiver. More...

void	FinalChecks () override
	Performs the (eventual) final checks through test asserts. More...

void	IncreaseBufSize ()
	Increase the receiver buffer size. More...

void	NormalClose (SocketWho who) override

void	ProcessedAck (const Ptr< const TcpSocketState > tcb, const TcpHeader &h, SocketWho who) override

void	Rx (const Ptr< const Packet > p, const TcpHeader &h, SocketWho who) override
	Packet received from IP layer. More...

void	Tx (const Ptr< const Packet > p, const TcpHeader &h, SocketWho who) override
	Packet transmitted down to IP layer. More...

Protected Member Functions inherited from ns3::TcpGeneralTest
virtual void	AfterRTOExpired (const Ptr< const TcpSocketState > tcb[[maybe_unused]], SocketWho who[[maybe_unused]])
	Rto has expired. More...

virtual void	BeforeRTOExpired (const Ptr< const TcpSocketState > tcb[[maybe_unused]], SocketWho who[[maybe_unused]])
	Rto has expired. More...

virtual void	BytesInFlightTrace (uint32_t oldValue[[maybe_unused]], uint32_t newValue[[maybe_unused]])
	Bytes in flight changes. More...

virtual void	CongStateTrace (const TcpSocketState::TcpCongState_t oldValue[[maybe_unused]], const TcpSocketState::TcpCongState_t newValue[[maybe_unused]])
	State on Ack state machine changes. More...

virtual Ptr< SimpleChannel >	CreateChannel ()
	Create and return the channel installed between the two socket. More...

virtual Ptr< ErrorModel >	CreateReceiverErrorModel ()
	Create and return the error model to install in the receiver node. More...

virtual Ptr< ErrorModel >	CreateSenderErrorModel ()
	Create and return the error model to install in the sender node. More...

virtual Ptr< TcpSocketMsgBase >	CreateSenderSocket (Ptr< Node > node)
	Create and install the socket to install on the sender. More...

virtual Ptr< TcpSocketMsgBase >	CreateSocket (Ptr< Node > node, TypeId socketType, TypeId congControl)
	Create a socket. More...

virtual Ptr< TcpSocketMsgBase >	CreateSocket (Ptr< Node > node, TypeId socketType, TypeId congControl, TypeId recoveryAlgorithm)
	Create a socket. More...

virtual void	CWndInflTrace (uint32_t oldValue[[maybe_unused]], uint32_t newValue[[maybe_unused]])
	Tracks the inflated congestion window changes. More...

virtual void	CWndTrace (uint32_t oldValue[[maybe_unused]], uint32_t newValue[[maybe_unused]])
	Tracks the congestion window changes. More...

virtual void	DataSent (uint32_t size[[maybe_unused]], SocketWho who[[maybe_unused]])
	Notifying application for sent data. More...

void	DoConnect ()
	Scheduled at 0.0, SENDER starts the connection to RECEIVER. More...

void	DoRun () override
	Execute the tcp test. More...

void	DoTeardown () override
	Teardown the TCP test. More...

virtual void	ErrorClose (SocketWho who[[maybe_unused]])
	Socket closed with an error. More...

Time	GetClockGranularity (SocketWho who)
	Get the clock granularity attribute. More...

Time	GetConnTimeout (SocketWho who)
	Get the retransmission time for the SYN segments. More...

uint32_t	GetDelAckCount (SocketWho who)
	Get the number of delayed ack (if present) More...

Time	GetDelAckTimeout (SocketWho who)
	Get the timeout of delayed ack (if present) More...

uint32_t	GetDupAckCount (SocketWho who)
	Get the number of dupack received. More...

SequenceNumber32	GetHighestTxMark (SocketWho who)
	Get the highest tx mark of the node specified. More...

uint32_t	GetInitialCwnd (SocketWho who)
	Get the initial congestion window. More...

uint32_t	GetInitialSsThresh (SocketWho who)
	Get the initial slow start threshold. More...

Time	GetMinRto (SocketWho who)
	Get the minimum RTO attribute. More...

uint32_t	GetMtu () const
	Get the MTU of the environment. More...

EventId	GetPersistentEvent (SocketWho who)
	Get the persistent event of the selected socket. More...

Time	GetPersistentTimeout (SocketWho who)
	Get the persistent timeout of the selected socket. More...

uint32_t	GetPktCount () const
	Get the number of application packets. More...

Time	GetPktInterval () const
	Get the interval to wait for each packet sent down from application to TCP. More...

uint32_t	GetPktSize () const
	Get the application packet size. More...

Time	GetPropagationDelay () const
	Get the channel Propagation Delay. More...

Ptr< TcpSocketMsgBase >	GetReceiverSocket ()
	Get the pointer to a previously created receiver socket. More...

uint32_t	GetReTxThreshold (SocketWho who)
	Get the retransmission threshold. More...

Time	GetRto (SocketWho who)
	Get the retransmission time. More...

Ptr< RttEstimator >	GetRttEstimator (SocketWho who)
	Get the Rtt estimator of the socket. More...

uint32_t	GetRWnd (SocketWho who)
	Get the rWnd of the selected socket. More...

Ptr< TcpRxBuffer >	GetRxBuffer (SocketWho who)
	Get the Rx buffer from selected socket. More...

uint32_t	GetSegSize (SocketWho who)
	Get the segment size of the node specified. More...

Ptr< TcpSocketMsgBase >	GetSenderSocket ()
	Get the pointer to a previously created sender socket. More...

Time	GetStartTime () const
	Get the data start time. More...

Ptr< TcpSocketState >	GetTcb (SocketWho who)
	Get the TCB from selected socket. More...

TcpSocket::TcpStates_t	GetTcpState (SocketWho who)
	Get the state of the TCP state machine. More...

Ptr< TcpTxBuffer >	GetTxBuffer (SocketWho who)
	Get the Tx buffer from selected socket. More...

virtual void	HighestTxSeqTrace (SequenceNumber32 oldValue[[maybe_unused]], SequenceNumber32 newValue[[maybe_unused]])
	Highest tx seq changes. More...

virtual void	NextTxSeqTrace (SequenceNumber32 oldValue[[maybe_unused]], SequenceNumber32 newValue[[maybe_unused]])
	Next tx seq changes. More...

virtual void	NormalClose (SocketWho who[[maybe_unused]])
	Socket closed normally. More...

virtual void	PhyDrop (SocketWho who[[maybe_unused]])
	Link drop. More...

virtual void	ProcessedAck (const Ptr< const TcpSocketState > tcb[[maybe_unused]], const TcpHeader &h[[maybe_unused]], SocketWho who[[maybe_unused]])
	Processed ack. More...

virtual void	QueueDrop (SocketWho who[[maybe_unused]])
	Drop on the queue. More...

virtual void	RateSampleUpdatedTrace (const TcpRateLinux::TcpRateSample &sample[[maybe_unused]])
	Track the rate sample value of TcpRateLinux. More...

virtual void	RateUpdatedTrace (const TcpRateLinux::TcpRateConnection &rate[[maybe_unused]])
	Track the rate value of TcpRateLinux. More...

virtual void	RcvAck (const Ptr< const TcpSocketState > tcb[[maybe_unused]], const TcpHeader &h[[maybe_unused]], SocketWho who[[maybe_unused]])
	Received ack. More...

virtual void	ReceivePacket (Ptr< Socket > socket)
	Packet received. More...

virtual void	RtoTrace (Time oldValue[[maybe_unused]], Time newValue[[maybe_unused]])
	RTO changes. More...

virtual void	RttTrace (Time oldTime[[maybe_unused]], Time newTime[[maybe_unused]])
	Rtt changes. More...

void	SendPacket (Ptr< Socket > socket, uint32_t pktSize, uint32_t pktCount, Time pktInterval)
	Send packets to other endpoint. More...

void	SetAppPktCount (uint32_t pktCount)
	Set app packet count. More...

void	SetAppPktInterval (Time pktInterval)
	Interval between app-generated packet. More...

void	SetAppPktSize (uint32_t pktSize)
	Set app packet size. More...

void	SetCongestionControl (TypeId congControl)
	Congestion control of the sender socket. More...

void	SetDelAckMaxCount (SocketWho who, uint32_t count)
	Forcefully set the delayed acknowledgement count. More...

void	SetInitialCwnd (SocketWho who, uint32_t initialCwnd)
	Forcefully set the initial cwnd. More...

void	SetInitialSsThresh (SocketWho who, uint32_t initialSsThresh)
	Forcefully set the initial ssthresh. More...

void	SetMTU (uint32_t mtu)
	MTU of the bottleneck link. More...

void	SetPaceInitialWindow (SocketWho who, bool paceWindow)
	Enable or disable pacing of the initial window. More...

void	SetPacingStatus (SocketWho who, bool pacing)
	Enable or disable pacing in the TCP socket. More...

void	SetPropagationDelay (Time propDelay)
	Propagation delay of the bottleneck link. More...

void	SetRcvBufSize (SocketWho who, uint32_t size)
	Forcefully set a defined size for rx buffer. More...

void	SetRecoveryAlgorithm (TypeId recovery)
	recovery algorithm of the sender socket More...

void	SetSegmentSize (SocketWho who, uint32_t segmentSize)
	Forcefully set the segment size. More...

void	SetTransmitStart (Time startTime)
	Set the initial time at which the application sends the first data packet. More...

void	SetUseEcn (SocketWho who, TcpSocketState::UseEcn_t useEcn)
	Forcefully set the ECN mode of use. More...

virtual void	SsThreshTrace (uint32_t oldValue[[maybe_unused]], uint32_t newValue[[maybe_unused]])
	Slow start threshold changes. More...

virtual void	UpdatedRttHistory (const SequenceNumber32 &seq[[maybe_unused]], uint32_t sz[[maybe_unused]], bool isRetransmission[[maybe_unused]], SocketWho who[[maybe_unused]])
	Updated the Rtt history. More...

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

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

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

bool	IsStatusFailure () const
	Check if any tests failed. More...

bool	IsStatusSuccess () const
	Check if all tests passed. More...

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

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. More...

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

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

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

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

Protected Attributes
EventId	m_receivePktEvent
	Receive packet event. More...

bool	m_receiverFinished
	Receiver finished. More...

bool	m_senderFinished
	Send finished. More...

bool	m_windowUpdated
	Window updated. More...

bool	m_zeroWindowProbe
	ZeroWindow probe. More...

Protected Attributes inherited from ns3::TcpGeneralTest
TypeId	m_congControlTypeId
	Congestion control. More...

TypeId	m_recoveryTypeId
	Recovery. More...

Additional Inherited Members
Public Types inherited from ns3::TcpGeneralTest
enum	SocketWho { SENDER , RECEIVER }
	Used as parameter of methods, specifies on what node the caller is interested (e.g. More...

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

Detailed Description

Testing the congestion avoidance increment on TCP ZeroWindow.

Definition at line 34 of file tcp-zero-window-test.cc.

Constructor & Destructor Documentation

◆ TcpZeroWindowTest()

TcpZeroWindowTest::TcpZeroWindowTest ( const std::string & desc )

Constructor.

Parameters

desc	Test description.

Definition at line 71 of file tcp-zero-window-test.cc.

Member Function Documentation

◆ ConfigureEnvironment()

void TcpZeroWindowTest::ConfigureEnvironment ( )

overrideprotectedvirtual

Change the configuration of the environment.

Reimplemented from ns3::TcpGeneralTest.

Definition at line 81 of file tcp-zero-window-test.cc.

References ns3::MilliSeconds(), ns3::Seconds(), ns3::TcpGeneralTest::SetAppPktCount(), ns3::TcpGeneralTest::SetMTU(), ns3::TcpGeneralTest::SetPropagationDelay(), and ns3::TcpGeneralTest::SetTransmitStart().

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◆ ConfigureProperties()

void TcpZeroWindowTest::ConfigureProperties ( )

overrideprotectedvirtual

Change the configuration of the socket properties.

Reimplemented from ns3::TcpGeneralTest.

Definition at line 91 of file tcp-zero-window-test.cc.

References ns3::TcpGeneralTest::SENDER, and ns3::TcpGeneralTest::SetInitialCwnd().

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◆ CreateReceiverSocket()

Ptr< TcpSocketMsgBase > TcpZeroWindowTest::CreateReceiverSocket ( Ptr< Node > node )

overrideprotectedvirtual

Create and install the socket to install on the receiver.

Parameters

node	receiver node pointer

Returns: the socket to be installed in the receiver

Reimplemented from ns3::TcpGeneralTest.

Definition at line 104 of file tcp-zero-window-test.cc.

References IncreaseBufSize(), and ns3::Seconds().

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◆ FinalChecks()

void TcpZeroWindowTest::FinalChecks ( )

overrideprotectedvirtual

Performs the (eventual) final checks through test asserts.

Reimplemented from ns3::TcpGeneralTest.

Definition at line 219 of file tcp-zero-window-test.cc.

References m_receiverFinished, m_senderFinished, m_windowUpdated, m_zeroWindowProbe, and NS_TEST_ASSERT_MSG_EQ.

◆ IncreaseBufSize()

void TcpZeroWindowTest::IncreaseBufSize ( )

protected

Increase the receiver buffer size.

Definition at line 98 of file tcp-zero-window-test.cc.

References ns3::TcpGeneralTest::RECEIVER, and ns3::TcpGeneralTest::SetRcvBufSize().

Referenced by CreateReceiverSocket().

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◆ NormalClose()

void TcpZeroWindowTest::NormalClose ( SocketWho who )

overrideprotected

Definition at line 206 of file tcp-zero-window-test.cc.

References m_receiverFinished, m_senderFinished, ns3::TcpGeneralTest::RECEIVER, and ns3::TcpGeneralTest::SENDER.

◆ ProcessedAck()

void TcpZeroWindowTest::ProcessedAck	(	const Ptr< const TcpSocketState >	tcb,
		const TcpHeader &	h,
		SocketWho	who
	)

overrideprotected

Definition at line 230 of file tcp-zero-window-test.cc.

References ns3::TcpHeader::GetFlags(), ns3::TcpGeneralTest::GetPersistentEvent(), ns3::EventId::IsRunning(), NS_TEST_ASSERT_MSG_EQ, ns3::TcpGeneralTest::RECEIVER, and ns3::TcpGeneralTest::SENDER.

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◆ Rx()

void TcpZeroWindowTest::Rx	(	const Ptr< const Packet >	p,
		const TcpHeader &	h,
		SocketWho	who
	)

overrideprotectedvirtual

Packet received from IP layer.

Parameters

p	packet
h	header
who	the socket which has received the packet (SENDER or RECEIVER)

Reimplemented from ns3::TcpGeneralTest.

Definition at line 180 of file tcp-zero-window-test.cc.

References ns3::TcpHeader::GetFlags(), ns3::Packet::GetSize(), ns3::TcpHeader::GetWindowSize(), m_windowUpdated, ns3::Now(), NS_LOG_INFO, NS_TEST_ASSERT_MSG_EQ, ns3::TcpGeneralTest::RECEIVER, and ns3::TcpGeneralTest::SENDER.

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◆ Tx()

void TcpZeroWindowTest::Tx	(	const Ptr< const Packet >	p,
		const TcpHeader &	h,
		SocketWho	who
	)

overrideprotectedvirtual

Packet transmitted down to IP layer.

Parameters

p	packet
h	header
who	the socket which has received the packet (SENDER or RECEIVER)

Reimplemented from ns3::TcpGeneralTest.

Definition at line 115 of file tcp-zero-window-test.cc.

References ns3::TcpHeader::GetFlags(), ns3::TcpHeader::GetSequenceNumber(), ns3::Packet::GetSize(), ns3::TcpGeneralTest::GetTcb(), ns3::TcpHeader::GetWindowSize(), m_zeroWindowProbe, ns3::Now(), NS_FATAL_ERROR, NS_LOG_INFO, NS_TEST_ASSERT_MSG_EQ, ns3::TcpGeneralTest::RECEIVER, and ns3::TcpGeneralTest::SENDER.

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Member Data Documentation

◆ m_receivePktEvent

EventId TcpZeroWindowTest::m_receivePktEvent

protected

Receive packet event.

Definition at line 64 of file tcp-zero-window-test.cc.

◆ m_receiverFinished

bool TcpZeroWindowTest::m_receiverFinished

protected

Receiver finished.

Definition at line 68 of file tcp-zero-window-test.cc.

Referenced by FinalChecks(), and NormalClose().

◆ m_senderFinished

bool TcpZeroWindowTest::m_senderFinished

protected

Send finished.

Definition at line 67 of file tcp-zero-window-test.cc.

Referenced by FinalChecks(), and NormalClose().

◆ m_windowUpdated

bool TcpZeroWindowTest::m_windowUpdated

protected

Window updated.

Definition at line 66 of file tcp-zero-window-test.cc.

Referenced by FinalChecks(), and Rx().

◆ m_zeroWindowProbe

bool TcpZeroWindowTest::m_zeroWindowProbe

protected

ZeroWindow probe.

Definition at line 65 of file tcp-zero-window-test.cc.

Referenced by FinalChecks(), and Tx().

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

src/internet/test/tcp-zero-window-test.cc

Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ TcpZeroWindowTest()

Member Function Documentation

◆ ConfigureEnvironment()

◆ ConfigureProperties()

◆ CreateReceiverSocket()

◆ FinalChecks()

◆ IncreaseBufSize()

◆ NormalClose()

◆ ProcessedAck()

◆ Rx()

◆ Tx()

Member Data Documentation

◆ m_receivePktEvent

◆ m_receiverFinished

◆ m_senderFinished

◆ m_windowUpdated

◆ m_zeroWindowProbe