ns-3
Public Member Functions | Static Public Member Functions | Protected Member Functions | Protected Attributes
ns3::TcpReno Class Reference
Socket | Tcp

An implementation of a stream socket using TCP. More...

#include <tcp-reno.h>

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List of all members.

Public Member Functions

 TcpReno (void)
 TcpReno (const TcpReno &sock)
virtual int Connect (const Address &address)
virtual int Listen (void)
- Public Member Functions inherited from ns3::TcpSocketBase
 TcpSocketBase (void)
 TcpSocketBase (const TcpSocketBase &sock)
virtual void SetNode (Ptr< Node > node)
virtual void SetTcp (Ptr< TcpL4Protocol > tcp)
virtual void SetRtt (Ptr< RttEstimator > rtt)
virtual enum SocketErrno GetErrno (void) const
virtual enum SocketType GetSocketType (void) const
virtual Ptr< Node > GetNode (void) const
virtual int Bind (void)
virtual int Bind6 (void)
 Allocate a local IPv6 endpoint for this socket.
virtual int Bind (const Address &address)
virtual int Close (void)
virtual int ShutdownSend (void)
virtual int ShutdownRecv (void)
virtual int Send (Ptr< Packet > p, uint32_t flags)
virtual int SendTo (Ptr< Packet > p, uint32_t flags, const Address &toAddress)
virtual Ptr< Packet > Recv (uint32_t maxSize, uint32_t flags)
virtual Ptr< Packet > RecvFrom (uint32_t maxSize, uint32_t flags, Address &fromAddress)
virtual uint32_t GetTxAvailable (void) const
virtual uint32_t GetRxAvailable (void) const
virtual int GetSockName (Address &address) const
virtual void BindToNetDevice (Ptr< NetDevice > netdevice)

Static Public Member Functions

static TypeId GetTypeId (void)
 This method returns the TypeId associated to ns3::TcpReno.

Protected Member Functions

virtual uint32_t Window (void)
virtual Ptr< TcpSocketBase > Fork (void)
virtual void NewAck (const SequenceNumber32 &seq)
virtual void DupAck (const TcpHeader &t, uint32_t count)
virtual void Retransmit (void)
virtual void SetSegSize (uint32_t size)
virtual void SetSSThresh (uint32_t threshold)
virtual uint32_t GetSSThresh (void) const
virtual void SetInitialCwnd (uint32_t cwnd)
virtual uint32_t GetInitialCwnd (void) const
- Protected Member Functions inherited from ns3::TcpSocketBase
virtual void SetSndBufSize (uint32_t size)
virtual uint32_t GetSndBufSize (void) const
virtual void SetRcvBufSize (uint32_t size)
virtual uint32_t GetRcvBufSize (void) const
virtual uint32_t GetSegSize (void) const
virtual void SetConnTimeout (Time timeout)
virtual Time GetConnTimeout (void) const
virtual void SetConnCount (uint32_t count)
virtual uint32_t GetConnCount (void) const
virtual void SetDelAckTimeout (Time timeout)
virtual Time GetDelAckTimeout (void) const
virtual void SetDelAckMaxCount (uint32_t count)
virtual uint32_t GetDelAckMaxCount (void) const
virtual void SetTcpNoDelay (bool noDelay)
virtual bool GetTcpNoDelay (void) const
virtual void SetPersistTimeout (Time timeout)
virtual Time GetPersistTimeout (void) const
virtual bool SetAllowBroadcast (bool allowBroadcast)
 Configure whether broadcast datagram transmissions are allowed.
virtual bool GetAllowBroadcast (void) const
 Query whether broadcast datagram transmissions are allowed.
int SetupCallback (void)
int DoConnect (void)
void ConnectionSucceeded (void)
int SetupEndpoint (void)
int SetupEndpoint6 (void)
void CompleteFork (Ptr< Packet >, const TcpHeader &, const Address &fromAddress, const Address &toAdress)
void ForwardUp (Ptr< Packet > packet, Ipv4Header header, uint16_t port, Ptr< Ipv4Interface > incomingInterface)
void ForwardUp6 (Ptr< Packet > packet, Ipv6Address saddr, Ipv6Address daddr, uint16_t port)
virtual void DoForwardUp (Ptr< Packet > packet, Ipv4Header header, uint16_t port, Ptr< Ipv4Interface > incomingInterface)
virtual void DoForwardUp (Ptr< Packet > packet, Ipv6Address saddr, Ipv6Address daddr, uint16_t port)
bool SendPendingData (bool withAck=false)
uint32_t SendDataPacket (SequenceNumber32 seq, uint32_t maxSize, bool withAck)
void SendEmptyPacket (uint8_t flags)
void SendRST (void)
bool OutOfRange (SequenceNumber32 head, SequenceNumber32 tail) const
int DoClose (void)
void CloseAndNotify (void)
void Destroy (void)
void Destroy6 (void)
void DeallocateEndPoint (void)
void PeerClose (Ptr< Packet >, const TcpHeader &)
void DoPeerClose (void)
void CancelAllTimers (void)
void TimeWait (void)
void ProcessEstablished (Ptr< Packet >, const TcpHeader &)
void ProcessListen (Ptr< Packet >, const TcpHeader &, const Address &, const Address &)
void ProcessSynSent (Ptr< Packet >, const TcpHeader &)
void ProcessSynRcvd (Ptr< Packet >, const TcpHeader &, const Address &, const Address &)
void ProcessWait (Ptr< Packet >, const TcpHeader &)
void ProcessClosing (Ptr< Packet >, const TcpHeader &)
void ProcessLastAck (Ptr< Packet >, const TcpHeader &)
virtual uint32_t UnAckDataCount (void)
virtual uint32_t BytesInFlight (void)
virtual uint32_t AvailableWindow (void)
virtual uint16_t AdvertisedWindowSize (void)
virtual void ReceivedAck (Ptr< Packet >, const TcpHeader &)
virtual void ReceivedData (Ptr< Packet >, const TcpHeader &)
virtual void EstimateRtt (const TcpHeader &)
virtual void ReTxTimeout (void)
virtual void DelAckTimeout (void)
virtual void LastAckTimeout (void)
virtual void PersistTimeout (void)
virtual void DoRetransmit (void)
virtual void ReadOptions (const TcpHeader &)
virtual void AddOptions (TcpHeader &)

Protected Attributes

TracedValue< uint32_t > m_cWnd
uint32_t m_ssThresh
uint32_t m_initialCWnd
uint32_t m_retxThresh
bool m_inFastRec
- Protected Attributes inherited from ns3::TcpSocketBase
EventId m_retxEvent
EventId m_lastAckEvent
EventId m_delAckEvent
EventId m_persistEvent
EventId m_timewaitEvent
uint32_t m_dupAckCount
uint32_t m_delAckCount
uint32_t m_delAckMaxCount
bool m_noDelay
uint32_t m_cnCount
uint32_t m_cnRetries
TracedValue< Time > m_rto
TracedValue< Time > m_lastRtt
Time m_delAckTimeout
Time m_persistTimeout
Time m_cnTimeout
Ipv4EndPoint * m_endPoint
Ipv6EndPoint * m_endPoint6
Ptr< Node > m_node
Ptr< TcpL4Protocol > m_tcp
Ptr< RttEstimator > m_rtt
TracedValue< SequenceNumber32 > m_nextTxSequence
TracedValue< SequenceNumber32 > m_highTxMark
TcpRxBuffer m_rxBuffer
TcpTxBuffer m_txBuffer
TracedValue< TcpStates_t > m_state
enum SocketErrno m_errno
bool m_closeNotified
bool m_closeOnEmpty
bool m_shutdownSend
bool m_shutdownRecv
bool m_connected
double m_msl
uint32_t m_segmentSize
uint16_t m_maxWinSize
TracedValue< uint32_t > m_rWnd

Detailed Description

An implementation of a stream socket using TCP.

This class contains the Reno implementation of TCP, according to RFC2581, except sec.4.1 "re-starting idle connections", which we do not detect for idleness and thus no slow start upon resumption.

Constructor & Destructor Documentation

ns3::TcpReno::TcpReno ( void  )

Create an unbound tcp socket.

References NS_LOG_FUNCTION.

Member Function Documentation

int ns3::TcpReno::Connect ( const Address &  address)
virtual

We initialize m_cWnd from this function, after attributes initialized

Reimplemented from ns3::TcpSocketBase.

References NS_LOG_FUNCTION.

TypeId ns3::TcpReno::GetTypeId ( void  )
static

This method returns the TypeId associated to ns3::TcpReno.

Attributes defined for this type:

  • ReTxThreshold: Threshold for fast retransmit

Attributes defined in parent class ns3::TcpSocketBase:

  • MaxSegLifetime: Maximum segment lifetime in seconds, use for TIME_WAIT state transition to CLOSED state
    • Set with class: ns3::DoubleValue
    • Underlying type: double 0:1.79769e+308
    • Initial value: 120
    • Flags: construct write read
  • MaxWindowSize: Max size of advertised window

Attributes defined in parent class ns3::TcpSocket:

  • SndBufSize: TcpSocket maximum transmit buffer size (bytes)
  • RcvBufSize: TcpSocket maximum receive buffer size (bytes)
  • SegmentSize: TCP maximum segment size in bytes (may be adjusted based on MTU discovery)
  • SlowStartThreshold: TCP slow start threshold (bytes)
  • InitialCwnd: TCP initial congestion window size (segments)
  • ConnTimeout: TCP retransmission timeout when opening connection (seconds)
    • Set with class: TimeValue
    • Underlying type: Time
    • Initial value: +3000000000.0ns
    • Flags: construct write read
  • ConnCount: Number of connection attempts (SYN retransmissions) before returning failure
  • DelAckTimeout: Timeout value for TCP delayed acks, in seconds
    • Set with class: TimeValue
    • Underlying type: Time
    • Initial value: +200000000.0ns
    • Flags: construct write read
  • DelAckCount: Number of packets to wait before sending a TCP ack
  • TcpNoDelay: Set to true to disable Nagle's algorithm
    • Set with class: BooleanValue
    • Underlying type: bool
    • Initial value: true
    • Flags: construct write read
  • PersistTimeout: Persist timeout to probe for rx window
    • Set with class: TimeValue
    • Underlying type: Time
    • Initial value: +6000000000.0ns
    • Flags: construct write read

TraceSources defined for this type:

  • CongestionWindow: The TCP connection's congestion window

TraceSources defined in parent class ns3::TcpSocketBase:

  • RTO: Retransmission timeout
  • RTT: Last RTT sample
  • NextTxSequence: Next sequence number to send (SND.NXT)
  • HighestSequence: Highest sequence number ever sent in socket's life time
  • State: TCP state
  • RWND: Remote side's flow control window

Reimplemented from ns3::TcpSocketBase.

References ns3::MakeTraceSourceAccessor(), and ns3::TypeId::SetParent().

int ns3::TcpReno::Listen ( void  )
virtual

We initialize m_cWnd from this function, after attributes initialized

Reimplemented from ns3::TcpSocketBase.

References NS_LOG_FUNCTION.

void ns3::TcpReno::NewAck ( const SequenceNumber32 &  seq)
protectedvirtual

New ACK (up to seqnum seq) received. Increase cwnd and call TcpSocketBase::NewAck()

Reimplemented from ns3::TcpSocketBase.

References NS_LOG_FUNCTION, NS_LOG_INFO, and NS_LOG_LOGIC.

uint32_t ns3::TcpReno::Window ( void  )
protectedvirtual

Limit the size of in-flight data by cwnd and receiver's rxwin

Reimplemented from ns3::TcpSocketBase.

References NS_LOG_FUNCTION.

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