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

#include <tcp-newreno.h>

Inheritance diagram for ns3::TcpNewReno:

Collaboration diagram for ns3::TcpNewReno:

Public Member Functions
	TcpNewReno (void)
	Create an unbound tcp socket. More...

	TcpNewReno (const TcpNewReno &sock)
	Copy constructor. More...

virtual	~TcpNewReno (void)

virtual int	Connect (const Address &address)
	Initiate a connection to a remote host. More...

virtual int	Listen (void)
	Listen for incoming connections. More...

Public Member Functions inherited from ns3::TcpSocketBase
	TcpSocketBase (void)
	Create an unbound TCP socket. More...

	TcpSocketBase (const TcpSocketBase &sock)
	Clone a TCP socket, for use upon receiving a connection request in LISTEN state. More...

virtual	~TcpSocketBase (void)

virtual int	Bind (void)
	Allocate a local IPv4 endpoint for this socket. More...

virtual int	Bind (const Address &address)
	Allocate a local endpoint for this socket. More...

virtual int	Bind6 (void)
	Allocate a local IPv6 endpoint for this socket. More...

virtual void	BindToNetDevice (Ptr< NetDevice > netdevice)
	Bind a socket to specific device. More...

virtual int	Close (void)
	Close a socket. More...

Time	GetClockGranularity (void) const
	Get the Clock Granularity (used in RTO calcs). More...

virtual enum SocketErrno	GetErrno (void) const
	Get last error number. More...

Time	GetMinRto (void) const
	Get the Minimum RTO. More...

virtual Ptr< Node >	GetNode (void) const
	Return the node this socket is associated with. More...

virtual uint32_t	GetRxAvailable (void) const
	Return number of bytes which can be returned from one or multiple calls to Recv. More...

Ptr< TcpRxBuffer >	GetRxBuffer (void) const
	Get a pointer to the Rx buffer. More...

virtual enum SocketType	GetSocketType (void) const

virtual int	GetSockName (Address &address) const
	Get socket address. More...

virtual uint32_t	GetTxAvailable (void) const
	Returns the number of bytes which can be sent in a single call to Send. More...

Ptr< TcpTxBuffer >	GetTxBuffer (void) const
	Get a pointer to the Tx buffer. More...

virtual Ptr< Packet >	Recv (uint32_t maxSize, uint32_t flags)
	Read data from the socket. More...

virtual Ptr< Packet >	RecvFrom (uint32_t maxSize, uint32_t flags, Address &fromAddress)
	Read a single packet from the socket and retrieve the sender address. More...

virtual int	Send (Ptr< Packet > p, uint32_t flags)
	Send data (or dummy data) to the remote host. More...

virtual int	SendTo (Ptr< Packet > p, uint32_t flags, const Address &toAddress)
	Send data to a specified peer. More...

void	SetClockGranularity (Time clockGranularity)
	Sets the Clock Granularity (used in RTO calcs). More...

void	SetMinRto (Time minRto)
	Sets the Minimum RTO. More...

virtual void	SetNode (Ptr< Node > node)
	Set the associated node. More...

virtual void	SetRtt (Ptr< RttEstimator > rtt)
	Set the associated RTT estimator. More...

virtual void	SetTcp (Ptr< TcpL4Protocol > tcp)
	Set the associated TCP L4 protocol. More...

virtual int	ShutdownRecv (void)

virtual int	ShutdownSend (void)

Public Member Functions inherited from ns3::TcpSocket
	TcpSocket (void)

virtual	~TcpSocket (void)

Public Member Functions inherited from ns3::Socket
	Socket (void)

virtual	~Socket (void)

Ptr< NetDevice >	GetBoundNetDevice ()
	Returns socket's bound netdevice, if any. More...

uint8_t	GetIpTos (void) const
	Query the value of IP Type of Service of this socket. More...

virtual uint8_t	GetIpTtl (void) const
	Query the value of IP Time to Live field of this socket. More...

virtual uint8_t	GetIpv6HopLimit (void) const
	Query the value of IP Hop Limit field of this socket. More...

uint8_t	GetIpv6Tclass (void) const
	Query the value of IPv6 Traffic Class field of this socket. More...

bool	IsIpRecvTos (void) const
	Ask if the socket is currently passing information about IP Type of Service up the stack. More...

bool	IsIpRecvTtl (void) const
	Ask if the socket is currently passing information about IP_TTL up the stack. More...

bool	IsIpv6RecvHopLimit (void) const
	Ask if the socket is currently passing information about IPv6 Hop Limit up the stack. More...

bool	IsIpv6RecvTclass (void) const
	Ask if the socket is currently passing information about IPv6 Traffic Class up the stack. More...

bool	IsRecvPktInfo () const
	Get status indicating whether enable/disable packet information to socket. More...

Ptr< Packet >	Recv (void)
	Read a single packet from the socket. More...

int	Recv (uint8_t *buf, uint32_t size, uint32_t flags)
	Recv data (or dummy data) from the remote host. More...

Ptr< Packet >	RecvFrom (Address &fromAddress)
	Read a single packet from the socket and retrieve the sender address. More...

int	RecvFrom (uint8_t *buf, uint32_t size, uint32_t flags, Address &fromAddress)
	Read a single packet from the socket and retrieve the sender address. More...

int	Send (Ptr< Packet > p)
	Send data (or dummy data) to the remote host. More...

int	Send (const uint8_t *buf, uint32_t size, uint32_t flags)
	Send data (or dummy data) to the remote host. More...

int	SendTo (const uint8_t *buf, uint32_t size, uint32_t flags, const Address &address)
	Send data to a specified peer. More...

void	SetAcceptCallback (Callback< bool, Ptr< Socket >, const Address & > connectionRequest, Callback< void, Ptr< Socket >, const Address & > newConnectionCreated)
	Accept connection requests from remote hosts. More...

void	SetCloseCallbacks (Callback< void, Ptr< Socket > > normalClose, Callback< void, Ptr< Socket > > errorClose)
	Detect socket recv() events such as graceful shutdown or error. More...

void	SetConnectCallback (Callback< void, Ptr< Socket > > connectionSucceeded, Callback< void, Ptr< Socket > > connectionFailed)
	Specify callbacks to allow the caller to determine if the connection succeeds of fails. More...

void	SetDataSentCallback (Callback< void, Ptr< Socket >, uint32_t > dataSent)
	Notify application when a packet has been sent from transport protocol (non-standard socket call) More...

void	SetIpRecvTos (bool ipv4RecvTos)
	Tells a socket to pass information about IP Type of Service up the stack. More...

void	SetIpRecvTtl (bool ipv4RecvTtl)
	Tells a socket to pass information about IP_TTL up the stack. More...

void	SetIpTos (uint8_t ipTos)
	Manually set IP Type of Service field. More...

virtual void	SetIpTtl (uint8_t ipTtl)
	Manually set IP Time to Live field. More...

virtual void	SetIpv6HopLimit (uint8_t ipHopLimit)
	Manually set IPv6 Hop Limit. More...

void	SetIpv6RecvHopLimit (bool ipv6RecvHopLimit)
	Tells a socket to pass information about IPv6 Hop Limit up the stack. More...

void	SetIpv6RecvTclass (bool ipv6RecvTclass)
	Tells a socket to pass information about IPv6 Traffic Class up the stack. More...

void	SetIpv6Tclass (int ipTclass)
	Manually set IPv6 Traffic Class field. More...

void	SetRecvCallback (Callback< void, Ptr< Socket > >)
	Notify application when new data is available to be read. More...

void	SetRecvPktInfo (bool flag)
	Enable/Disable receive packet information to socket. More...

void	SetSendCallback (Callback< void, Ptr< Socket >, uint32_t > sendCb)
	Notify application when space in transmit buffer is added. More...

Public Member Functions inherited from ns3::Object
	Object ()
	Constructor. More...

virtual	~Object ()
	Destructor. More...

void	AggregateObject (Ptr< Object > other)
	Aggregate two Objects together. More...

void	Dispose (void)
	Dispose of this Object. More...

AggregateIterator	GetAggregateIterator (void) const
	Get an iterator to the Objects aggregated to this one. More...

virtual TypeId	GetInstanceTypeId (void) const
	Implement the GetInstanceTypeId method defined in ObjectBase. More...

template<typename T >
Ptr< T >	GetObject (void) const
	Get a pointer to the requested aggregated Object. More...

template<typename T >
Ptr< T >	GetObject (TypeId tid) const
	Get a pointer to the requested aggregated Object. More...

void	Initialize (void)
	Invoke DoInitialize on all Objects aggregated to this one. More...

Public Member Functions inherited from ns3::SimpleRefCount< Object, ObjectBase, ObjectDeleter >
	SimpleRefCount ()
	Constructor. More...

	SimpleRefCount (const SimpleRefCount &o)
	Copy constructor. More...

uint32_t	GetReferenceCount (void) const
	Get the reference count of the object. More...

SimpleRefCount &	operator= (const SimpleRefCount &o)
	Assignment. More...

void	Ref (void) const
	Increment the reference count. More...

void	Unref (void) const
	Decrement the reference count. More...

Public Member Functions inherited from ns3::ObjectBase
virtual	~ObjectBase ()
	Virtual destructor. More...

void	GetAttribute (std::string name, AttributeValue &value) const
	Get the value of an attribute, raising fatal errors if unsuccessful. More...

bool	GetAttributeFailSafe (std::string name, AttributeValue &value) const
	Get the value of an attribute without raising erros. More...

void	SetAttribute (std::string name, const AttributeValue &value)
	Set a single attribute, raising fatal errors if unsuccessful. More...

bool	SetAttributeFailSafe (std::string name, const AttributeValue &value)
	Set a single attribute without raising errors. More...

bool	TraceConnect (std::string name, std::string context, const CallbackBase &cb)
	Connect a TraceSource to a Callback with a context. More...

bool	TraceConnectWithoutContext (std::string name, const CallbackBase &cb)
	Connect a TraceSource to a Callback without a context. More...

bool	TraceDisconnect (std::string name, std::string context, const CallbackBase &cb)
	Disconnect from a TraceSource a Callback previously connected with a context. More...

bool	TraceDisconnectWithoutContext (std::string name, const CallbackBase &cb)
	Disconnect from a TraceSource a Callback previously connected without a context. More...

Static Public Member Functions
static TypeId	GetTypeId (void)
	Get the type ID. More...

Static Public Member Functions inherited from ns3::TcpSocketBase
static TypeId	GetTypeId (void)
	Get the type ID. More...

Static Public Member Functions inherited from ns3::TcpSocket
static TypeId	GetTypeId (void)
	Get the type ID. More...

Static Public Member Functions inherited from ns3::Socket
static Ptr< Socket >	CreateSocket (Ptr< Node > node, TypeId tid)
	This method wraps the creation of sockets that is performed on a given node by a SocketFactory specified by TypeId. More...

static TypeId	GetTypeId (void)
	Get the type ID. More...

Static Public Member Functions inherited from ns3::Object
static TypeId	GetTypeId (void)
	Register this type. More...

Static Public Member Functions inherited from ns3::SimpleRefCount< Object, ObjectBase, ObjectDeleter >
static void	Cleanup (void)
	Noop. More...

Static Public Member Functions inherited from ns3::ObjectBase
static TypeId	GetTypeId (void)
	Get the type ID. More...

Protected Member Functions
virtual void	DupAck (const TcpHeader &t, uint32_t count)
	Received dupack (duplicate ACK) More...

virtual Ptr< TcpSocketBase >	Fork (void)
	Call CopyObject<> to clone me. More...

virtual uint32_t	GetInitialCwnd (void) const
	Get the initial Congestion Window. More...

virtual uint32_t	GetInitialSSThresh (void) const
	Get the initial Slow Start Threshold. More...

virtual void	NewAck (SequenceNumber32 const &seq)
	Update buffers w.r.t. More...

virtual void	Retransmit (void)
	Halving cwnd and call DoRetransmit() More...

virtual void	ScaleSsThresh (uint8_t scaleFactor)
	Scale the initial SsThresh value to the correct one. More...

virtual void	SetInitialCwnd (uint32_t cwnd)
	Set the initial Congestion Window. More...

virtual void	SetInitialSSThresh (uint32_t threshold)
	Set the initial Slow Start Threshold. More...

virtual void	SetSegSize (uint32_t size)
	Set the segment size. More...

virtual uint32_t	Window (void)
	Return the max possible number of unacked bytes. More...

Protected Member Functions inherited from ns3::TcpSocketBase
virtual void	AddOptions (TcpHeader &tcpHeader)
	Add options to TcpHeader. More...

void	AddOptionTimestamp (TcpHeader &header)
	Add the timestamp option to the header. More...

void	AddOptionWScale (TcpHeader &header)
	Add the window scale option to the header. More...

virtual uint16_t	AdvertisedWindowSize (void)
	The amount of Rx window announced to the peer. More...

virtual uint32_t	AvailableWindow (void)
	Return unfilled portion of window. More...

virtual uint32_t	BytesInFlight (void)
	Return total bytes in flight. More...

uint8_t	CalculateWScale () const
	Calculate window scale value based on receive buffer space. More...

void	CancelAllTimers (void)
	Cancel all timer when endpoint is deleted. More...

void	CloseAndNotify (void)
	Peacefully close the socket by notifying the upper layer and deallocate end point. More...

void	CompleteFork (Ptr< Packet > p, const TcpHeader &tcpHeader, const Address &fromAddress, const Address &toAddress)
	Complete a connection by forking the socket. More...

void	ConnectionSucceeded (void)
	Schedule-friendly wrapper for Socket::NotifyConnectionSucceeded() More...

void	DeallocateEndPoint (void)
	Deallocate m_endPoint and m_endPoint6. More...

virtual void	DelAckTimeout (void)
	Action upon delay ACK timeout, i.e. More...

void	Destroy (void)
	Kill this socket by zeroing its attributes (IPv4) More...

void	Destroy6 (void)
	Kill this socket by zeroing its attributes (IPv6) More...

int	DoClose (void)
	Close a socket by sending RST, FIN, or FIN+ACK, depend on the current state. More...

int	DoConnect (void)
	Perform the real connection tasks: Send SYN if allowed, RST if invalid. More...

virtual void	DoForwardUp (Ptr< Packet > packet, Ipv4Header header, uint16_t port, Ptr< Ipv4Interface > incomingInterface)
	Called by TcpSocketBase::ForwardUp(). More...

virtual void	DoForwardUp (Ptr< Packet > packet, Ipv6Header header, uint16_t port)
	Called by TcpSocketBase::ForwardUp6(). More...

void	DoPeerClose (void)
	FIN is in sequence, notify app and respond with a FIN. More...

virtual void	DoRetransmit (void)
	Retransmit the oldest packet. More...

virtual void	EstimateRtt (const TcpHeader &tcpHeader)
	Take into account the packet for RTT estimation. More...

void	ForwardIcmp (Ipv4Address icmpSource, uint8_t icmpTtl, uint8_t icmpType, uint8_t icmpCode, uint32_t icmpInfo)
	Called by the L3 protocol when it received an ICMP packet to pass on to TCP. More...

void	ForwardIcmp6 (Ipv6Address icmpSource, uint8_t icmpTtl, uint8_t icmpType, uint8_t icmpCode, uint32_t icmpInfo)
	Called by the L3 protocol when it received an ICMPv6 packet to pass on to TCP. More...

void	ForwardUp (Ptr< Packet > packet, Ipv4Header header, uint16_t port, Ptr< Ipv4Interface > incomingInterface)
	Called by the L3 protocol when it received a packet to pass on to TCP. More...

void	ForwardUp6 (Ptr< Packet > packet, Ipv6Header header, uint16_t port, Ptr< Ipv6Interface > incomingInterface)
	Called by the L3 protocol when it received a packet to pass on to TCP. More...

virtual bool	GetAllowBroadcast (void) const
	Query whether broadcast datagram transmissions are allowed. More...

virtual uint32_t	GetConnCount (void) const
	Get the number of connection retries before giving up. More...

virtual Time	GetConnTimeout (void) const
	Get the connection timeout. More...

virtual uint32_t	GetDelAckMaxCount (void) const
	Get the number of packet to fire an ACK before delay timeout. More...

virtual Time	GetDelAckTimeout (void) const
	Get the time to delay an ACK. More...

virtual Time	GetPersistTimeout (void) const
	Get the timout for persistent connection. More...

virtual uint32_t	GetRcvBufSize (void) const
	Get the receive buffer size. More...

virtual uint32_t	GetSegSize (void) const
	Get the segment size. More...

virtual uint32_t	GetSndBufSize (void) const
	Get the send buffer size. More...

virtual bool	GetTcpNoDelay (void) const
	Check if Nagle's algorithm is enabled or not. More...

virtual void	LastAckTimeout (void)
	Timeout at LAST_ACK, close the connection. More...

bool	OutOfRange (SequenceNumber32 head, SequenceNumber32 tail) const
	Check if a sequence number range is within the rx window. More...

void	PeerClose (Ptr< Packet > p, const TcpHeader &tcpHeader)
	Received a FIN from peer, notify rx buffer. More...

virtual void	PersistTimeout (void)
	Send 1 byte probe to get an updated window size. More...

void	ProcessClosing (Ptr< Packet > packet, const TcpHeader &tcpHeader)
	Received a packet upon CLOSING. More...

void	ProcessEstablished (Ptr< Packet > packet, const TcpHeader &tcpHeader)
	Received a packet upon ESTABLISHED state. More...

void	ProcessLastAck (Ptr< Packet > packet, const TcpHeader &tcpHeader)
	Received a packet upon LAST_ACK. More...

void	ProcessListen (Ptr< Packet > packet, const TcpHeader &tcpHeader, const Address &fromAddress, const Address &toAddress)
	Received a packet upon LISTEN state. More...

void	ProcessOptionTimestamp (const Ptr< const TcpOption > option)
	Process the timestamp option from other side. More...

void	ProcessOptionWScale (const Ptr< const TcpOption > option)
	Read and parse the Window scale option. More...

void	ProcessSynRcvd (Ptr< Packet > packet, const TcpHeader &tcpHeader, const Address &fromAddress, const Address &toAddress)
	Received a packet upon SYN_RCVD. More...

void	ProcessSynSent (Ptr< Packet > packet, const TcpHeader &tcpHeader)
	Received a packet upon SYN_SENT. More...

void	ProcessWait (Ptr< Packet > packet, const TcpHeader &tcpHeader)
	Received a packet upon CLOSE_WAIT, FIN_WAIT_1, FIN_WAIT_2. More...

virtual void	ReadOptions (const TcpHeader &tcpHeader)
	Read TCP options from incoming packets. More...

virtual void	ReceivedAck (Ptr< Packet > packet, const TcpHeader &tcpHeader)
	Received an ACK packet. More...

virtual void	ReceivedData (Ptr< Packet > packet, const TcpHeader &tcpHeader)
	Recv of a data, put into buffer, call L7 to get it if necessary. More...

virtual void	ReTxTimeout (void)
	Call Retransmit() upon RTO event. More...

uint32_t	SendDataPacket (SequenceNumber32 seq, uint32_t maxSize, bool withAck)
	Extract at most maxSize bytes from the TxBuffer at sequence seq, add the TCP header, and send to TcpL4Protocol. More...

void	SendEmptyPacket (uint8_t flags)
	Send a empty packet that carries a flag, e.g. More...

bool	SendPendingData (bool withAck=false)
	Send as much pending data as possible according to the Tx window. More...

void	SendRST (void)
	Send reset and tear down this socket. More...

virtual bool	SetAllowBroadcast (bool allowBroadcast)
	Configure whether broadcast datagram transmissions are allowed. More...

virtual void	SetConnCount (uint32_t count)
	Set the number of connection retries before giving up. More...

virtual void	SetConnTimeout (Time timeout)
	Set the connection timeout. More...

virtual void	SetDelAckMaxCount (uint32_t count)
	Set the number of packet to fire an ACK before delay timeout. More...

virtual void	SetDelAckTimeout (Time timeout)
	Set the time to delay an ACK. More...

virtual void	SetPersistTimeout (Time timeout)
	Set the timout for persistent connection. More...

virtual void	SetRcvBufSize (uint32_t size)
	Set the receive buffer size. More...

virtual void	SetSndBufSize (uint32_t size)
	Set the send buffer size. More...

virtual void	SetTcpNoDelay (bool noDelay)
	Enable/Disable Nagle's algorithm. More...

int	SetupCallback (void)
	Common part of the two Bind(), i.e. More...

int	SetupEndpoint (void)
	Configure the endpoint to a local address. More...

int	SetupEndpoint6 (void)
	Configure the endpoint v6 to a local address. More...

void	TimeWait (void)
	Move from CLOSING or FIN_WAIT_2 to TIME_WAIT state. More...

virtual uint32_t	UnAckDataCount (void)
	Return count of number of unacked bytes. More...

void	UpdateWindowSize (const TcpHeader &header)
	Update the receiver window (RWND) based on the value of the window field in the header. More...

Protected Member Functions inherited from ns3::Socket
virtual void	DoDispose (void)
	Destructor implementation. More...

bool	IsManualIpTos (void) const
	Checks if the socket has a specific IPv4 ToS set. More...

bool	IsManualIpTtl (void) const
	Checks if the socket has a specific IPv4 TTL set. More...

bool	IsManualIpv6HopLimit (void) const
	Checks if the socket has a specific IPv6 Hop Limit set. More...

bool	IsManualIpv6Tclass (void) const
	Checks if the socket has a specific IPv6 Tclass set. More...

void	NotifyConnectionFailed (void)
	Notify through the callback (if set) that the connection has not been established due to an error. More...

bool	NotifyConnectionRequest (const Address &from)
	Notify through the callback (if set) that an incoming connection is being requested by a remote host. More...

void	NotifyConnectionSucceeded (void)
	Notify through the callback (if set) that the connection has been established. More...

void	NotifyDataRecv (void)
	Notify through the callback (if set) that some data have been received. More...

void	NotifyDataSent (uint32_t size)
	Notify through the callback (if set) that some data have been sent. More...

void	NotifyErrorClose (void)
	Notify through the callback (if set) that the connection has been closed due to an error. More...

void	NotifyNewConnectionCreated (Ptr< Socket > socket, const Address &from)
	Notify through the callback (if set) that a new connection has been created. More...

void	NotifyNormalClose (void)
	Notify through the callback (if set) that the connection has been closed. More...

void	NotifySend (uint32_t spaceAvailable)
	Notify through the callback (if set) that some data have been sent. More...

Protected Member Functions inherited from ns3::Object
	Object (const Object &o)
	Copy an Object. More...

virtual void	DoInitialize (void)
	Initialize() implementation. More...

virtual void	NotifyNewAggregate (void)
	Notify all Objects aggregated to this one of a new Object being aggregated. More...

Protected Member Functions inherited from ns3::ObjectBase
void	ConstructSelf (const AttributeConstructionList &attributes)
	Complete construction of ObjectBase; invoked by derived classes. More...

virtual void	NotifyConstructionCompleted (void)
	Notifier called once the ObjectBase is fully constructed. More...

Protected Attributes
TracedValue< uint32_t >	m_cWnd
	Congestion window. More...

bool	m_inFastRec
	currently in fast recovery More...

uint32_t	m_initialCWnd
	Initial cWnd value. More...

uint32_t	m_initialSsThresh
	Initial Slow Start Threshold value. More...

bool	m_limitedTx
	perform limited transmit More...

SequenceNumber32	m_recover
	Previous highest Tx seqnum for fast recovery. More...

uint32_t	m_retxThresh
	Fast Retransmit threshold. More...

TracedValue< uint32_t >	m_ssThresh
	Slow Start Threshold. More...

Protected Attributes inherited from ns3::TcpSocketBase
Time	m_clockGranularity
	Clock Granularity used in RTO calcs. More...

bool	m_closeNotified
	Told app to close socket. More...

bool	m_closeOnEmpty
	Close socket upon tx buffer emptied. More...

uint32_t	m_cnCount
	Count of remaining connection retries. More...

uint32_t	m_cnRetries
	Number of connection retries before giving up. More...

Time	m_cnTimeout
	Timeout for connection retry. More...

bool	m_connected
	Connection established. More...

uint32_t	m_delAckCount
	Delayed ACK counter. More...

EventId	m_delAckEvent
	Delayed ACK timeout event. More...

uint32_t	m_delAckMaxCount
	Number of packet to fire an ACK before delay timeout. More...

Time	m_delAckTimeout
	Time to delay an ACK. More...

uint32_t	m_dupAckCount
	Dupack counter. More...

Ipv4EndPoint *	m_endPoint
	the IPv4 endpoint More...

Ipv6EndPoint *	m_endPoint6
	the IPv6 endpoint More...

enum SocketErrno	m_errno
	Socket error code. More...

TracedValue< SequenceNumber32 >	m_highRxAckMark
	Highest ack received. More...

TracedValue< SequenceNumber32 >	m_highRxMark
	Highest seqno received. More...

TracedValue< SequenceNumber32 >	m_highTxMark
	Highest seqno ever sent, regardless of ReTx. More...

RttHistory_t	m_history
	List of sent packet. More...

Callback< void, Ipv4Address, uint8_t, uint8_t, uint8_t, uint32_t >	m_icmpCallback
	ICMP callback. More...

Callback< void, Ipv6Address, uint8_t, uint8_t, uint8_t, uint32_t >	m_icmpCallback6
	ICMPv6 callback. More...

EventId	m_lastAckEvent
	Last ACK timeout event. More...

TracedValue< Time >	m_lastRtt
	Last RTT sample collected. More...

uint16_t	m_maxWinSize
	Maximum window size to advertise. More...

Time	m_minRto
	minimum value of the Retransmit timeout More...

double	m_msl
	Max segment lifetime. More...

TracedValue< SequenceNumber32 >	m_nextTxSequence
	Next seqnum to be sent (SND.NXT), ReTx pushes it back. More...

Ptr< Node >	m_node
	the associated node More...

bool	m_noDelay
	Set to true to disable Nagle's algorithm. More...

EventId	m_persistEvent
	Persist event: Send 1 byte to probe for a non-zero Rx window. More...

Time	m_persistTimeout
	Time between sending 1-byte probes. More...

uint8_t	m_rcvScaleFactor
	Received Window Scale (i.e., the one of the peer) More...

EventId	m_retxEvent
	Retransmission event. More...

TracedValue< Time >	m_rto
	Retransmit timeout. More...

Ptr< RttEstimator >	m_rtt
	Round trip time estimator. More...

TracedValue< uint32_t >	m_rWnd
	Receiver window (RCV.WND in RFC793) More...

Ptr< TcpRxBuffer >	m_rxBuffer
	Rx buffer (reordering buffer) More...

uint32_t	m_segmentSize
	Segment size. More...

EventId	m_sendPendingDataEvent
	micro-delay event to send pending data More...

bool	m_shutdownRecv
	Receive no longer allowed. More...

bool	m_shutdownSend
	Send no longer allowed. More...

uint8_t	m_sndScaleFactor
	Sent Window Scale (i.e., the one of the node) More...

TracedValue< TcpStates_t >	m_state
	TCP state. More...

Ptr< TcpL4Protocol >	m_tcp
	the associated TCP L4 protocol More...

bool	m_timestampEnabled
	Timestamp option enabled. More...

uint32_t	m_timestampToEcho
	Timestamp to echo. More...

EventId	m_timewaitEvent
	TIME_WAIT expiration event: Move this socket to CLOSED state. More...

Ptr< TcpTxBuffer >	m_txBuffer
	Tx buffer. More...

bool	m_winScalingEnabled
	Window Scale option enabled. More...

Protected Attributes inherited from ns3::Socket
Ptr< NetDevice >	m_boundnetdevice
	the device this socket is bound to (might be null). More...

bool	m_recvPktInfo
	if the socket should add packet info tags to the packet forwarded to L4. More...

Private Member Functions
void	InitializeCwnd (void)
	Set the congestion window when connection starts. More...

Additional Inherited Members
Public Types inherited from ns3::Socket
enum	SocketErrno { ERROR_NOTERROR, ERROR_ISCONN, ERROR_NOTCONN, ERROR_MSGSIZE, ERROR_AGAIN, ERROR_SHUTDOWN, ERROR_OPNOTSUPP, ERROR_AFNOSUPPORT, ERROR_INVAL, ERROR_BADF, ERROR_NOROUTETOHOST, ERROR_NODEV, ERROR_ADDRNOTAVAIL, ERROR_ADDRINUSE, SOCKET_ERRNO_LAST }
	Enumeration of the possible errors returned by a socket. More...

enum	SocketType { NS3_SOCK_STREAM, NS3_SOCK_SEQPACKET, NS3_SOCK_DGRAM, NS3_SOCK_RAW }
	Enumeration of the possible socket types. More...

Static Public Attributes inherited from ns3::TcpSocket
static const char *const	TcpStateName [LAST_STATE] = { "CLOSED", "LISTEN", "SYN_SENT", "SYN_RCVD", "ESTABLISHED", "CLOSE_WAIT", "LAST_ACK", "FIN_WAIT_1", "FIN_WAIT_2", "CLOSING", "TIME_WAIT" }
	Literal names of TCP states for use in log messages. More...

Related Functions inherited from ns3::ObjectBase
static TypeId	GetObjectIid (void)
	Ensure the TypeId for ObjectBase gets fully configured to anchor the inheritance tree properly. More...

Detailed Description

An implementation of a stream socket using TCP.

This class contains the NewReno implementation of TCP, as of RFC 2582.

Config Paths

ns3::TcpNewReno is accessible through the following paths with Config::Set and Config::Connect:

"/NodeList/[i]/$ns3::TcpL4Protocol/SocketList/[i]/$ns3::TcpNewReno"

Attributes

ReTxThreshold: Threshold for fast retransmit
- Set with class: ns3::UintegerValue
- Underlying type: uint32_t 0:4294967295
- Initial value: 3
- Flags: construct write read
LimitedTransmit: Enable limited transmit
- Set with class: BooleanValue
- Underlying type: bool
- Initial value: false
- Flags: construct write read

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
- Set with class: ns3::UintegerValue
- Underlying type: uint16_t 0:65535
- Initial value: 65535
- Flags: construct write read
IcmpCallback: Callback invoked whenever an icmp error is received on this socket.
- Set with class: CallbackValue
- Underlying type: Callback
- Initial value: 0
- Flags: construct write read
IcmpCallback6: Callback invoked whenever an icmpv6 error is received on this socket.
- Set with class: CallbackValue
- Underlying type: Callback
- Initial value: 0
- Flags: construct write read
WindowScaling: Enable or disable Window Scaling option
- Set with class: BooleanValue
- Underlying type: bool
- Initial value: true
- Flags: construct write read
Timestamp: Enable or disable Timestamp option
- Set with class: BooleanValue
- Underlying type: bool
- Initial value: true
- Flags: construct write read
MinRto: Minimum retransmit timeout value
- Set with class: ns3::TimeValue
- Underlying type: Time –9223372036854775808.0ns:+9223372036854775807.0ns
- Initial value: +1000000000.0ns
- Flags: construct write read
ClockGranularity: Clock Granularity used in RTO calculations
- Set with class: ns3::TimeValue
- Underlying type: Time –9223372036854775808.0ns:+9223372036854775807.0ns
- Initial value: +1000000.0ns
- Flags: construct write read
TxBuffer: TCP Tx buffer
- Set with class: ns3::PointerValue
- Underlying type: ns3::Ptr< ns3::TcpTxBuffer>
- Flags: read
RxBuffer: TCP Rx buffer
- Set with class: ns3::PointerValue
- Underlying type: ns3::Ptr< ns3::TcpRxBuffer>
- Flags: read

Attributes defined in parent class ns3::TcpSocket

SndBufSize: TcpSocket maximum transmit buffer size (bytes)
- Set with class: ns3::UintegerValue
- Underlying type: uint32_t 0:4294967295
- Initial value: 131072
- Flags: construct write read
RcvBufSize: TcpSocket maximum receive buffer size (bytes)
- Set with class: ns3::UintegerValue
- Underlying type: uint32_t 0:4294967295
- Initial value: 131072
- Flags: construct write read
SegmentSize: TCP maximum segment size in bytes (may be adjusted based on MTU discovery)
- Set with class: ns3::UintegerValue
- Underlying type: uint32_t 0:4294967295
- Initial value: 536
- Flags: construct write read
InitialSlowStartThreshold: TCP initial slow start threshold (bytes)
- Set with class: ns3::UintegerValue
- Underlying type: uint32_t 0:4294967295
- Initial value: 65535
- Flags: construct write read
InitialCwnd: TCP initial congestion window size (segments)
- Set with class: ns3::UintegerValue
- Underlying type: uint32_t 0:4294967295
- Initial value: 1
- Flags: construct write read
ConnTimeout: TCP retransmission timeout when opening connection (seconds)
- Set with class: ns3::TimeValue
- Underlying type: Time –9223372036854775808.0ns:+9223372036854775807.0ns
- Initial value: +3000000000.0ns
- Flags: construct write read
ConnCount: Number of connection attempts (SYN retransmissions) before returning failure
- Set with class: ns3::UintegerValue
- Underlying type: uint32_t 0:4294967295
- Initial value: 6
- Flags: construct write read
DelAckTimeout: Timeout value for TCP delayed acks, in seconds
- Set with class: ns3::TimeValue
- Underlying type: Time –9223372036854775808.0ns:+9223372036854775807.0ns
- Initial value: +200000000.0ns
- Flags: construct write read
DelAckCount: Number of packets to wait before sending a TCP ack
- Set with class: ns3::UintegerValue
- Underlying type: uint32_t 0:4294967295
- Initial value: 2
- Flags: construct write read
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: ns3::TimeValue
- Underlying type: Time –9223372036854775808.0ns:+9223372036854775807.0ns
- Initial value: +6000000000.0ns
- Flags: construct write read

TraceSources

CongestionWindow: The TCP connection's congestion window
Callback signature: ns3::TracedValue::Uint32Callback
SlowStartThreshold: TCP slow start threshold (bytes)
Callback signature: ns3::TracedValue::Uint32Callback

TraceSources defined in parent class ns3::TcpSocketBase

RTO: Retransmission timeout
Callback signature: ns3::Time::TracedValueCallback
RTT: Last RTT sample
Callback signature: ns3::Time::TracedValueCallback
NextTxSequence: Next sequence number to send (SND.NXT)
Callback signature: ns3::SequenceNumber32TracedValueCallback
HighestSequence: Highest sequence number ever sent in socket's life time
Callback signature: ns3::SequenceNumber32TracedValueCallback
State: TCP state
Callback signature: ns3::TcpStatesTracedValueCallback
RWND: Remote side's flow control window
Callback signature: ns3::TracedValue::Uint32Callback
HighestRxSequence: Highest sequence number received from peer
Callback signature: ns3::SequenceNumber32TracedValueCallback
HighestRxAck: Highest ack received from peer
Callback signature: ns3::SequenceNumber32TracedValueCallback

Size of this type is 800 bytes (on a 64-bit architecture).

Definition at line 36 of file tcp-newreno.h.

Constructor & Destructor Documentation

ns3::TcpNewReno::TcpNewReno ( void )

Create an unbound tcp socket.

Definition at line 64 of file tcp-newreno.cc.

References NS_LOG_FUNCTION.

ns3::TcpNewReno::TcpNewReno ( const TcpNewReno & sock )

Copy constructor.

Parameters

sock	the object to copy

Definition at line 72 of file tcp-newreno.cc.

References NS_LOG_FUNCTION, and NS_LOG_LOGIC.

ns3::TcpNewReno::~TcpNewReno ( void )

virtual

Definition at line 86 of file tcp-newreno.cc.

Member Function Documentation

int ns3::TcpNewReno::Connect ( const Address & address )

virtual

Initiate a connection to a remote host.

Parameters

address Address of remote.

Returns: 0 on success, -1 on error (in which case errno is set).

Reimplemented from ns3::TcpSocketBase.

Definition at line 101 of file tcp-newreno.cc.

References ns3::TcpSocketBase::Connect(), InitializeCwnd(), and NS_LOG_FUNCTION.

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void ns3::TcpNewReno::DupAck	(	const TcpHeader &	tcpHeader,
		uint32_t	count
	)

protectedvirtual

Received dupack (duplicate ACK)

Parameters

tcpHeader	the packet's TCP header
count	counter of duplicate ACKs

Implements ns3::TcpSocketBase.

Definition at line 169 of file tcp-newreno.cc.

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Ptr< TcpSocketBase > ns3::TcpNewReno::Fork ( void )

protectedvirtual

Call CopyObject<> to clone me.

Returns: a copy of the socket

Implements ns3::TcpSocketBase.

Definition at line 117 of file tcp-newreno.cc.

uint32_t ns3::TcpNewReno::GetInitialCwnd ( void ) const

protectedvirtual

Get the initial Congestion Window.

Returns: the initial congestion window (in bytes)

Implements ns3::TcpSocketBase.

Definition at line 251 of file tcp-newreno.cc.

References m_initialCWnd.

uint32_t ns3::TcpNewReno::GetInitialSSThresh ( void ) const

protectedvirtual

Get the initial Slow Start Threshold.

Returns: the Slow Start Threshold (in bytes)

Implements ns3::TcpSocketBase.

Definition at line 238 of file tcp-newreno.cc.

References m_initialSsThresh.

TypeId ns3::TcpNewReno::GetTypeId ( void )

static

Get the type ID.

Returns: the object TypeId

Definition at line 38 of file tcp-newreno.cc.

References m_cWnd, m_limitedTx, m_retxThresh, m_ssThresh, ns3::MakeBooleanAccessor(), ns3::MakeBooleanChecker(), ns3::MakeTraceSourceAccessor(), ns3::MakeUintegerAccessor(), and ns3::TypeId::SetParent().

Referenced by ns3::TcpL4Protocol::GetTypeId().

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void ns3::TcpNewReno::InitializeCwnd ( void )

private

Set the congestion window when connection starts.

Definition at line 257 of file tcp-newreno.cc.

References m_cWnd, m_initialCWnd, m_initialSsThresh, ns3::TcpSocketBase::m_segmentSize, and m_ssThresh.

Referenced by Connect(), and Listen().

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int ns3::TcpNewReno::Listen ( void )

virtual

Listen for incoming connections.

Returns: 0 on success, -1 on error (in which case errno is set).

Reimplemented from ns3::TcpSocketBase.

Definition at line 92 of file tcp-newreno.cc.

References InitializeCwnd(), ns3::TcpSocketBase::Listen(), and NS_LOG_FUNCTION.

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void ns3::TcpNewReno::NewAck ( SequenceNumber32 const & seq )

protectedvirtual

Update buffers w.r.t.

ACK

Parameters

seq	the sequence number

Reimplemented from ns3::TcpSocketBase.

Definition at line 124 of file tcp-newreno.cc.

References ns3::TcpSocketBase::BytesInFlight(), ns3::TcpSocketBase::DoRetransmit(), ns3::TracedValue< T >::Get(), m_cWnd, m_inFastRec, m_recover, ns3::TcpSocketBase::m_segmentSize, m_ssThresh, ns3::TcpSocketBase::m_txBuffer, ns3::TcpSocketBase::NewAck(), NS_LOG_FUNCTION, NS_LOG_INFO, and NS_LOG_LOGIC.

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void ns3::TcpNewReno::Retransmit ( void )

protectedvirtual

Halving cwnd and call DoRetransmit()

Reimplemented from ns3::TcpSocketBase.

Definition at line 201 of file tcp-newreno.cc.

References ns3::TcpSocketBase::BytesInFlight(), ns3::CLOSED, ns3::TcpSocketBase::DoRetransmit(), m_cWnd, ns3::TcpSocketBase::m_highTxMark, m_inFastRec, ns3::TcpSocketBase::m_nextTxSequence, ns3::TcpSocketBase::m_segmentSize, m_ssThresh, ns3::TcpSocketBase::m_state, ns3::TcpSocketBase::m_txBuffer, ns3::Simulator::Now(), NS_LOG_FUNCTION, NS_LOG_INFO, NS_LOG_LOGIC, and ns3::TIME_WAIT.

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void ns3::TcpNewReno::ScaleSsThresh ( uint8_t scaleFactor )

protectedvirtual

Scale the initial SsThresh value to the correct one.

Set the initial SsThresh to the largest possible advertised window according to the sender scale factor.

Parameters

scaleFactor the sender scale factor

Implements ns3::TcpSocketBase.

Definition at line 269 of file tcp-newreno.cc.

References m_ssThresh.

void ns3::TcpNewReno::SetInitialCwnd ( uint32_t cwnd )

protectedvirtual

Set the initial Congestion Window.

Parameters

cwnd	the initial congestion window (in bytes)

Implements ns3::TcpSocketBase.

Definition at line 244 of file tcp-newreno.cc.

References ns3::CLOSED, m_initialCWnd, ns3::TcpSocketBase::m_state, and NS_ABORT_MSG_UNLESS.

void ns3::TcpNewReno::SetInitialSSThresh ( uint32_t threshold )

protectedvirtual

Set the initial Slow Start Threshold.

Parameters

threshold the Slow Start Threshold (in bytes)

Implements ns3::TcpSocketBase.

Definition at line 231 of file tcp-newreno.cc.

References ns3::CLOSED, m_initialSsThresh, ns3::TcpSocketBase::m_state, and NS_ABORT_MSG_UNLESS.

void ns3::TcpNewReno::SetSegSize ( uint32_t size )

protectedvirtual

Set the segment size.

Parameters

size	the segment size (in bytes)

Reimplemented from ns3::TcpSocketBase.

Definition at line 224 of file tcp-newreno.cc.

References ns3::CLOSED, ns3::TcpSocketBase::m_segmentSize, ns3::TcpSocketBase::m_state, and NS_ABORT_MSG_UNLESS.

uint32_t ns3::TcpNewReno::Window ( void )

protectedvirtual

Return the max possible number of unacked bytes.

Returns: the max possible number of unacked bytes

Implements ns3::TcpSocketBase.

Definition at line 110 of file tcp-newreno.cc.

References ns3::TracedValue< T >::Get(), m_cWnd, ns3::TcpSocketBase::m_rWnd, and NS_LOG_FUNCTION.

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Member Data Documentation

TracedValue<uint32_t> ns3::TcpNewReno::m_cWnd

protected

Congestion window.

Definition at line 81 of file tcp-newreno.h.

Referenced by DupAck(), GetTypeId(), InitializeCwnd(), NewAck(), Retransmit(), and Window().

bool ns3::TcpNewReno::m_inFastRec

protected

currently in fast recovery

Definition at line 87 of file tcp-newreno.h.

Referenced by DupAck(), NewAck(), and Retransmit().

uint32_t ns3::TcpNewReno::m_initialCWnd

protected

Initial cWnd value.

Definition at line 83 of file tcp-newreno.h.

Referenced by GetInitialCwnd(), InitializeCwnd(), and SetInitialCwnd().

uint32_t ns3::TcpNewReno::m_initialSsThresh

protected

Initial Slow Start Threshold value.

Definition at line 84 of file tcp-newreno.h.

Referenced by GetInitialSSThresh(), InitializeCwnd(), and SetInitialSSThresh().

bool ns3::TcpNewReno::m_limitedTx

protected

perform limited transmit

Definition at line 88 of file tcp-newreno.h.

Referenced by DupAck(), and GetTypeId().

SequenceNumber32 ns3::TcpNewReno::m_recover

protected

Previous highest Tx seqnum for fast recovery.

Definition at line 85 of file tcp-newreno.h.

Referenced by DupAck(), and NewAck().

uint32_t ns3::TcpNewReno::m_retxThresh

protected

Fast Retransmit threshold.

Definition at line 86 of file tcp-newreno.h.

Referenced by DupAck(), and GetTypeId().

TracedValue<uint32_t> ns3::TcpNewReno::m_ssThresh

protected

Slow Start Threshold.

Definition at line 82 of file tcp-newreno.h.

Referenced by DupAck(), GetTypeId(), InitializeCwnd(), NewAck(), Retransmit(), and ScaleSsThresh().

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

src/internet/model/tcp-newreno.h
src/internet/model/tcp-newreno.cc

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Private Member Functions

Additional Inherited Members

Detailed Description

Config Paths

Attributes

Attributes defined in parent class ns3::TcpSocketBase

Attributes defined in parent class ns3::TcpSocket

TraceSources

TraceSources defined in parent class ns3::TcpSocketBase

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation