Check the value of BytesInFlight against a home-made guess. More...
Public Member Functions | |
TcpBytesInFlightTest (const std::string &desc, std::vector< uint32_t > &toDrop) | |
Constructor. More... | |
Public Member Functions inherited from ns3::TcpGeneralTest | |
TcpGeneralTest (const std::string &desc) | |
TcpGeneralTest constructor. More... | |
~TcpGeneralTest () | |
Public Member Functions inherited from ns3::TestCase | |
virtual | ~TestCase () |
Destructor. More... | |
std::string | GetName (void) const |
Protected Member Functions | |
void | BeforeRTOExpired (const Ptr< const TcpSocketState > tcb, SocketWho who) |
Do the checks before the RTO expires. More... | |
virtual void | BytesInFlightTrace (uint32_t oldValue, uint32_t newValue) |
Track the bytes in flight. More... | |
void | ConfigureEnvironment () |
Configure the test. More... | |
virtual Ptr< ErrorModel > | CreateReceiverErrorModel () |
Create a receiver error model. More... | |
void | FinalChecks () |
Do the final checks. More... | |
void | PktDropped (const Ipv4Header &ipH, const TcpHeader &tcpH, Ptr< const Packet > p) |
Called when a packet is dropped. More... | |
void | RTOExpired (Time oldVal, Time newVal) |
Update when RTO expires. More... | |
virtual void | Rx (const Ptr< const Packet > p, const TcpHeader &h, SocketWho who) |
Receive a packet. More... | |
virtual void | Tx (const Ptr< const Packet > p, const TcpHeader &h, SocketWho who) |
Transmit a packet. More... | |
Protected Member Functions inherited from ns3::TcpGeneralTest | |
virtual void | AfterRTOExpired (const Ptr< const TcpSocketState > tcb, SocketWho who) |
Rto has expired. More... | |
virtual void | ConfigureProperties (void) |
Change the configuration of the socket properties. More... | |
virtual void | CongStateTrace (const TcpSocketState::TcpCongState_t oldValue, const TcpSocketState::TcpCongState_t newValue) |
State on Ack state machine changes. More... | |
virtual Ptr< SimpleChannel > | CreateChannel () |
Create and return the channel installed between the two socket. More... | |
virtual Ptr< TcpSocketMsgBase > | CreateReceiverSocket (Ptr< Node > node) |
Create and install the socket to install on the receiver. 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, uint32_t newValue) |
Tracks the inflated congestion window changes. More... | |
virtual void | CWndTrace (uint32_t oldValue, uint32_t newValue) |
Tracks the congestion window changes. More... | |
virtual void | DataSent (uint32_t size, SocketWho who) |
Notifying application for sent data. More... | |
void | DoConnect () |
Scheduled at 0.0, SENDER starts the connection to RECEIVER. More... | |
virtual void | DoRun (void) |
Execute the tcp test. More... | |
virtual void | DoTeardown (void) |
Teardown the TCP test. More... | |
virtual void | ErrorClose (SocketWho who) |
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... | |
virtual void | HighestTxSeqTrace (SequenceNumber32 oldValue, SequenceNumber32 newValue) |
Highest tx seq changes. More... | |
virtual void | NextTxSeqTrace (SequenceNumber32 oldValue, SequenceNumber32 newValue) |
Next tx seq changes. More... | |
virtual void | NormalClose (SocketWho who) |
Socket closed normally. More... | |
virtual void | PhyDrop (SocketWho who) |
Link drop. More... | |
virtual void | ProcessedAck (const Ptr< const TcpSocketState > tcb, const TcpHeader &h, SocketWho who) |
Processed ack. More... | |
virtual void | QueueDrop (SocketWho who) |
Drop on the queue. More... | |
virtual void | RcvAck (const Ptr< const TcpSocketState > tcb, const TcpHeader &h, SocketWho who) |
Received ack. More... | |
virtual void | ReceivePacket (Ptr< Socket > socket) |
Packet received. More... | |
virtual void | RtoTrace (Time oldValue, Time newValue) |
RTO changes. More... | |
virtual void | RttTrace (Time oldTime, Time newTime) |
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 | SetEcn (SocketWho who, TcpSocketBase::EcnMode_t ecnMode) |
Forcefully set the ecn mode on. 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 ssth. More... | |
void | SetMTU (uint32_t mtu) |
MTU of the bottleneck link. 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 reccovery) |
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... | |
virtual void | SsThreshTrace (uint32_t oldValue, uint32_t newValue) |
Slow start threshold changes. More... | |
virtual void | UpdatedRttHistory (const SequenceNumber32 &seq, uint32_t sz, bool isRetransmission, SocketWho who) |
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 TestCsse. More... | |
bool | IsStatusFailure (void) const |
Check if any tests failed. More... | |
bool | IsStatusSuccess (void) 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 (void) const |
Check if this run should assert on failure. More... | |
bool | MustContinueOnFailure (void) 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... | |
Private Attributes | |
uint32_t | m_dupAckRecv |
Number of DupACKs received. More... | |
SequenceNumber32 | m_greatestSeqSent |
greatest sequence number sent. More... | |
uint32_t | m_guessedBytesInFlight |
Guessed bytes in flight. More... | |
SequenceNumber32 | m_lastAckRecv |
Last ACK received. More... | |
std::vector< uint32_t > | m_toDrop |
List of SequenceNumber to drop. 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... | |
Protected Attributes inherited from ns3::TcpGeneralTest | |
TypeId | m_congControlTypeId |
Congestion control. More... | |
TypeId | m_recoveryTypeId |
Recovery. More... | |
Check the value of BytesInFlight against a home-made guess.
The guess is made wrt to segments that travel the network; we have, in theory, the possibility to know the real amount of bytes in flight. However this value is useless, since the sender bases its guess on the received ACK.
Definition at line 43 of file tcp-bytes-in-flight-test.cc.
TcpBytesInFlightTest::TcpBytesInFlightTest | ( | const std::string & | desc, |
std::vector< uint32_t > & | toDrop | ||
) |
Constructor.
desc | Description. |
toDrop | Packets to drop. |
Definition at line 120 of file tcp-bytes-in-flight-test.cc.
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protectedvirtual |
Do the checks before the RTO expires.
tcb | The TcpSocketState. |
who | The socket. |
Reimplemented from ns3::TcpGeneralTest.
Definition at line 157 of file tcp-bytes-in-flight-test.cc.
References ns3::TcpGeneralTest::GetSenderSocket(), ns3::MakeCallback(), NS_LOG_DEBUG, and RTOExpired().
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protectedvirtual |
Track the bytes in flight.
oldValue | previous value. |
newValue | actual value. |
Reimplemented from ns3::TcpGeneralTest.
Definition at line 271 of file tcp-bytes-in-flight-test.cc.
References m_guessedBytesInFlight, ns3::Now(), NS_LOG_DEBUG, and NS_TEST_ASSERT_MSG_EQ.
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protectedvirtual |
Configure the test.
Reimplemented from ns3::TcpGeneralTest.
Definition at line 132 of file tcp-bytes-in-flight-test.cc.
References ns3::MilliSeconds(), ns3::Seconds(), ns3::TcpGeneralTest::SetAppPktCount(), ns3::Config::SetDefault(), ns3::TcpGeneralTest::SetPropagationDelay(), and ns3::TcpGeneralTest::SetTransmitStart().
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protectedvirtual |
Create a receiver error model.
Reimplemented from ns3::TcpGeneralTest.
Definition at line 143 of file tcp-bytes-in-flight-test.cc.
References ns3::TcpSeqErrorModel::AddSeqToKill(), m_toDrop, ns3::MakeCallback(), PktDropped(), and ns3::TcpGeneralErrorModel::SetDropCallback().
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protectedvirtual |
Do the final checks.
Reimplemented from ns3::TcpGeneralTest.
Definition at line 280 of file tcp-bytes-in-flight-test.cc.
References m_guessedBytesInFlight, and NS_TEST_ASSERT_MSG_EQ.
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protected |
Called when a packet is dropped.
ipH | The IP header. |
tcpH | The TCP header. |
p | The packet. |
Definition at line 171 of file tcp-bytes-in-flight-test.cc.
References ns3::TcpHeader::GetSequenceNumber(), ns3::Packet::GetSize(), and NS_LOG_DEBUG.
Referenced by CreateReceiverErrorModel().
Update when RTO expires.
oldVal | old time value |
newVal | new time value |
Definition at line 164 of file tcp-bytes-in-flight-test.cc.
References ns3::Time::GetSeconds(), m_guessedBytesInFlight, and NS_LOG_DEBUG.
Referenced by BeforeRTOExpired().
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protectedvirtual |
Receive a packet.
p | The packet. |
h | The TCP header. |
who | Who the socket belongs to (sender or receiver). |
Reimplemented from ns3::TcpGeneralTest.
Definition at line 178 of file tcp-bytes-in-flight-test.cc.
References ns3::TcpHeader::GetAckNumber(), ns3::TcpHeader::GetFlags(), ns3::TcpGeneralTest::GetSegSize(), m_dupAckRecv, m_greatestSeqSent, m_guessedBytesInFlight, m_lastAckRecv, NS_LOG_DEBUG, ns3::TcpGeneralTest::RECEIVER, and ns3::TcpGeneralTest::SENDER.
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protectedvirtual |
Transmit a packet.
p | The packet. |
h | The TCP header. |
who | Who the socket belongs to (sender or receiver). |
Reimplemented from ns3::TcpGeneralTest.
Definition at line 240 of file tcp-bytes-in-flight-test.cc.
References ns3::TcpHeader::GetSequenceNumber(), ns3::Packet::GetSize(), m_greatestSeqSent, m_guessedBytesInFlight, NS_LOG_DEBUG, and ns3::TcpGeneralTest::SENDER.
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private |
Number of DupACKs received.
Definition at line 114 of file tcp-bytes-in-flight-test.cc.
Referenced by Rx().
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private |
greatest sequence number sent.
Definition at line 116 of file tcp-bytes-in-flight-test.cc.
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private |
Guessed bytes in flight.
Definition at line 113 of file tcp-bytes-in-flight-test.cc.
Referenced by BytesInFlightTrace(), FinalChecks(), RTOExpired(), Rx(), and Tx().
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private |
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private |
List of SequenceNumber to drop.
Definition at line 117 of file tcp-bytes-in-flight-test.cc.
Referenced by CreateReceiverErrorModel().