TcpConnection

simple module

(no description)

Properties

Name	Value	Description

Signals

Name	Type	Unit
rcvOooSeg
cwnd
tcpRcvQueueDrops
rcvSeq
rcvNASeg
tcpRcvPayloadBytes
rttvar
load
rcvAck
sndAck
pipe
state
unacked
ssthresh
calcLoad
tcpRcvQueueBytes
srtt
markingProb
sndSacks
rto
sackedBytes
rcvSacks
rtt
dupAcks
numRtos
rcvWnd
sndNxt
rcvAdv
sndWnd

Statistics

Name	Record	Interpolation Mode
rcvOooSeg	vector	sample-hold
cwnd	vector	sample-hold
tcpRcvQueueDrops	vector	sample-hold
rcvSeq	vector	sample-hold
rcvNASeg	vector	sample-hold
tcpRcvPayloadBytes	vector	sample-hold
rttvar	vector	sample-hold
load	vector	sample-hold
rcvAck	vector	sample-hold
sndAck	vector	sample-hold
pipe	vector	sample-hold
state	vector	sample-hold
unacked	vector	sample-hold
ssthresh	vector	sample-hold
calcLoad	vector	sample-hold
tcpRcvQueueBytes	vector	sample-hold
srtt	vector	sample-hold
markingProb	vector	sample-hold
sndSacks	vector	sample-hold
rto	vector	sample-hold
sackedBytes	vector	sample-hold
rcvSacks	vector	sample-hold
rtt	vector	sample-hold
dupAcks	vector	sample-hold
numRtos	vector	sample-hold
rcvWnd	vector	sample-hold
sndNxt	vector	sample-hold
rcvAdv	vector	sample-hold
sndWnd	vector	sample-hold

Scheduled messages (observed)

msg	msgname	context
omnetpp::cMessage	DELAYEDACK	filled
omnetpp::cMessage	NMSL	filled
omnetpp::cMessage	REXMIT	filled
omnetpp::cMessage	SYN-REXMIT	filled

Direct method calls (observed)

call to	function	info
Tcp	inet::tcp::Tcp::sendFromConn	sendFromConn
TcpConnection	inet::tcp::TcpConnection::initClonedConnection	initClonedConnection
TcpConnection	inet::tcp::TcpConnection::initConnection	initConnection

Called methods (observed)

function	info	call from
inet::tcp::TcpConnection::initClonedConnection	initClonedConnection	TcpConnection
inet::tcp::TcpConnection::initConnection	initConnection	Tcp, TcpConnection
inet::tcp::TcpConnection::processAppCommand	processAppCommand	Tcp
inet::tcp::TcpConnection::processTCPSegment	processTCPSegment	Tcp

Packet operations (observed)

chunkType	packetAction
	peekDataAt
ByteCountChunk	insertAtBack
BytesChunk	insertAtBack
GenericAppMsg	insertAtBack
SequenceChunk	insertAtBack
SliceChunk	insertAtBack
BgpKeepAliveMessage	insertAtBack
BgpOpenMessage	insertAtBack
BgpUpdateMessage	insertAtBack
TcpHeader	insertAtFront

Shared Tagging operations (observed)

tagType	tagAction
DispatchProtocolReq	addTagIfAbsent
EcnReq	addTagIfAbsent
HopLimitReq	addTag, findTag
L3AddressReq	addTagIfAbsent
PacketProtocolTag	addTagIfAbsent
SocketInd	addTag
TransportProtocolInd	addTagIfAbsent

Source code

simple TcpConnection
{
    parameters:
        @signal[state];    // FSM state
        @signal[sndWnd];    // snd_wnd
        @signal[rcvWnd];    // rcv_wnd
        @signal[rcvAdv];    // current advertised window (=rcv_adv)
        @signal[sndNxt];    // sent seqNo
        @signal[sndAck];    // sent ackNo
        @signal[rcvSeq];    // received seqNo
        @signal[rcvAck];    // received ackNo (=snd_una)
        @signal[unacked];    // number of bytes unacknowledged
        @signal[dupAcks];    // current number of received dupAcks
        @signal[pipe];    // current sender's estimate of bytes outstanding in the network
        @signal[sndSacks];    // number of sent Sacks
        @signal[rcvSacks];    // number of received Sacks
        @signal[rcvOooSeg];    // number of received out-of-order segments
        @signal[rcvNASeg];    // number of received not acceptable segments
        @signal[sackedBytes];    // current number of received sacked bytes
        @signal[tcpRcvQueueBytes];    // current amount of used bytes in tcp receive queue
        @signal[tcpRcvQueueDrops];    // number of drops in tcp receive queue
        @signal[tcpRcvPayloadBytes];   // amount of payload bytes received (including duplicates, out of order etc) for TCP throughput

        //TcpAlgorithm signals:
        @signal[cwnd];    // will record changes to snd_cwnd
        @signal[ssthresh];    // will record changes to ssthresh
        @signal[rtt];    // will record measured RTT
        @signal[srtt];    // will record smoothed RTT
        @signal[rttvar];    // will record RTT variance (rttvar)
        @signal[rto];    // will record retransmission timeout
        @signal[numRtos];    // will record total number of RTOs

        @signal[load];   // will record load (currently only with DcTcp)
        @signal[calcLoad];    // will record calcLoad (currently only with DcTcp)
        @signal[markingProb];   // will record marking probability (currently only with DcTcp)

        @statistic[state](record=vector; interpolationmode=sample-hold);
        @statistic[sndWnd](record=vector; interpolationmode=sample-hold);    // snd_wnd
        @statistic[rcvWnd](record=vector; interpolationmode=sample-hold);    // rcv_wnd
        @statistic[rcvAdv](record=vector; interpolationmode=sample-hold);    // current advertised window (=rcv_adv)
        @statistic[sndNxt](record=vector; interpolationmode=sample-hold);    // sent seqNo
        @statistic[sndAck](record=vector; interpolationmode=sample-hold);    // sent ackNo
        @statistic[rcvSeq](record=vector; interpolationmode=sample-hold);    // received seqNo
        @statistic[rcvAck](record=vector; interpolationmode=sample-hold);    // received ackNo (=snd_una)
        @statistic[unacked](record=vector; interpolationmode=sample-hold);    // number of bytes unacknowledged
        @statistic[dupAcks](record=vector; interpolationmode=sample-hold);    // current number of received dupAcks
        @statistic[pipe](record=vector; interpolationmode=sample-hold);    // current sender's estimate of bytes outstanding in the network
        @statistic[sndSacks](record=vector; interpolationmode=sample-hold);    // number of sent Sacks
        @statistic[rcvSacks](record=vector; interpolationmode=sample-hold);    // number of received Sacks
        @statistic[rcvOooSeg](record=vector; interpolationmode=sample-hold);    // number of received out-of-order segments
        @statistic[rcvNASeg](record=vector; interpolationmode=sample-hold);    // number of received not acceptable segments
        @statistic[sackedBytes](record=vector; interpolationmode=sample-hold);    // current number of received sacked bytes
        @statistic[tcpRcvQueueBytes](record=vector; interpolationmode=sample-hold);    // current amount of used bytes in tcp receive queue
        @statistic[tcpRcvQueueDrops](record=vector; interpolationmode=sample-hold);    // number of drops in tcp receive queue
        @statistic[tcpRcvPayloadBytes](record=vector; interpolationmode=sample-hold);    // current amount of payload bytes received (including duplicates, out of order etc) for TCP throughput

        @statistic[cwnd](record=vector; interpolationmode=sample-hold);    // will record changes to snd_cwnd
        @statistic[ssthresh](record=vector; interpolationmode=sample-hold);    // will record changes to ssthresh
        @statistic[rtt](record=vector; interpolationmode=sample-hold);    // will record measured RTT
        @statistic[srtt](record=vector; interpolationmode=sample-hold);    // will record smoothed RTT
        @statistic[rttvar](record=vector; interpolationmode=sample-hold);    // will record RTT variance (rttvar)
        @statistic[rto](record=vector; interpolationmode=sample-hold);    // will record retransmission timeout
        @statistic[numRtos](record=vector; interpolationmode=sample-hold);    // will record total number of RTOs

        @statistic[load](record=vector; interpolationmode=sample-hold);    // will record load (currently only with DcTcp)
        @statistic[calcLoad](record=vector; interpolationmode=sample-hold);    // will record calcLoad (currently only with DcTcp)
        @statistic[markingProb](record=vector; interpolationmode=sample-hold);    // will record marking probability (currently only with DcTcp)
}

File: src/inet/transportlayer/tcp/TcpConnection.ned