Inherited from TcpAgent:

Public Methods

Agent/TCP instproc done {}

Agent/TCP instproc source type

virtual void timeout_nonrtx(int tno)

void trace(TracedVar* v)

Protected Fields

double awnd_

int Backoffs

double base_cwnd_

double boot_time_

int bug_fix_

BurstSndTimer burstsnd_timer_

int cong_action_

int control_increase_

int count_

TracedInt curseq_

TracedDouble cwnd_

double decrease_num_

int delay_growth_

DelSndTimer delsnd_timer_

TracedInt dupacks_

int ecn_

int ecn_backoff_

int ecn_burst_

int eln_

int eln_last_rxmit_

int eln_rxmit_thresh_

int EnblRTTCtr_

int F_counting

int F_full

double fcnt_

int first_decrease_

double firstsent_

TracedInt highest_ack_

double increase_num_

int last_ack_

int last_cwnd_action_

int maxburst_

int maxcwnd_

double maxrto_

TracedInt maxseq_

TracedInt nackpack_

int nam_tracevar_

TracedInt ndatabytes_

TracedInt ndatapack_

TracedInt nrexmit_

TracedInt nrexmitbytes_

TracedInt nrexmitpack_

int off_tcp_

int old_ecn_

double overhead_

FILE* plotfile_

int prev_highest_ack_

int QOption_

int recover_

int restart_bugfix_

int rtt_active_

int RTT_count

int RTT_goodcount

int RTT_prev

int rtt_seq_

double rtt_ts_

int rttvar_exp_

int rttvar_init_

RtxTimer rtx_timer_

double rtxcur_init_

TracedInt singledup_

int slow_start_restart_

int srtt_init_

TracedInt ssthresh_

int syn_

TracedInt t_backoff_

int T_full

int T_last

int T_prev

TracedInt t_rtt_

TracedInt t_rttvar_

int T_RTTVAR_BITS

double t_rtxcur_

TracedInt t_seqno_

TracedInt t_srtt_

int T_SRTT_BITS

int T_start

double tcp_tick_

int tcpip_base_hdr_size_

int trace_all_oneline_

int ts_option_

double ts_peer_

int W_timed

int W_used

double wnd_

double wnd_const_

double wnd_init_

int wnd_init_option_

int wnd_option_

double wnd_restart_

double wnd_th_

Protected Methods

virtual void cancel_rtx_timer()

void closecwnd(int how)

void ecn(int seqno)

double initial_window()

virtual void newtimer(Packet*)

void opencwnd()

virtual void output_helper(Packet*)

virtual void partialnewack_helper(Packet*)

void print_if_needed(double memb_time)

void process_qoption_after_ack(int seqno)

void process_qoption_after_send()

void quench(int how)

virtual void recv_helper(Packet*)

virtual void recv_newack_helper(Packet*)

void reset_qoption()

virtual void rtt_backoff()

void rtt_counting()

virtual void rtt_init()

virtual double rtt_timeout()

virtual void rtt_update(double tao)

virtual void send_helper(int)

virtual void send_idle_helper()

virtual void send_one()

virtual void set_rtx_timer()

void slowdown(int how)

void tcp_eln(Packet *pkt)

void traceAll()

virtual void traceVar(TracedVar* v)

virtual int window()

Protected

#define T_RTT_BITS

Inherited from Agent:

Public Fields

Agent instvar agent_port_

Agent instvar dst_addr_

Agent instvar dst_port_

Agent instvar namTrace_

Agent instvar tg_

Public Methods

inline nsaddr_t& addr()

Agent instproc attach-app {s_type}

Agent instproc attach-source {s_type}

Agent instproc attach-tbf { tbf }

Agent instproc attach-trace { file }

virtual void attachApp(Application* app)

inline nsaddr_t& daddr()

inline nsaddr_t& dport()

Agent instproc dst-port {}

Agent instproc init args

inline nsaddr_t& port()

Agent instproc port {}

virtual void send(int nbytes)

virtual void send(int sz, AppData *data)

void send(Packet* p, Handler* h)

virtual void sendto(int sz, AppData*, const char* flags = 0)

virtual void sendto(int nbytes, const char* flags, nsaddr_t dst)

Agent instproc set args

void set_pkttype(packet_t pkttype)

Agent instproc traffic-source agent

Protected Fields

Application* app_

Tcl_Channel channel_

int class_

int defttl_

ns_addr_t dst_

int fid_

ns_addr_t here_

int off_ip_

OldValue* oldValueList_

int prio_

int seqno_

int size_

char* traceName_

packet_t type_

static int uidcnt_

Protected Methods

void addAgentTrace(const char *name)

Packet* allocpkt()

Packet* allocpkt(int)

void deleteAgentTrace()

void dumpTracedVars()

virtual void idle()

void initpkt(Packet*)

void insertOldValue(TracedVar *v, const char *value)

OldValue* lookupOldValue(TracedVar *v)

void monitorAgentTrace()

virtual void recvBytes(int bytes)

Private Methods

void flushAVar(TracedVar *v)

Inherited from Connector:

Public Methods

virtual void drop(Packet* p)

inline NsObject* target()

Protected Fields

NsObject* drop_

NsObject* target_

Protected Methods

virtual void drop(Packet* p, const char *s)

Inherited from NsObject:

Public Methods

virtual void debug(const char *fmt, ...)

int isdebug()

Protected Fields

int debug_

int off_cmn_

int off_flags_

Protected Methods

void handle(Event*)

Inherited from Handler:

friend ReassemblyQueue

FullTcpAgent()

~FullTcpAgent()

virtual void recv(Packet *pkt, Handler*)

virtual void timeout(int tno)

tcp_timers() in real code

virtual void close()

void advanceby(int)

over-rides tcp base version

void advance_bytes(int)

unique to full-tcp

virtual void sendmsg(int nbytes, const char *flags = 0)

virtual int& size()

FullTcp uses maxseg_ for size_

virtual int command(int argc, const char*const* argv)

virtual void delay_bind_init_all()

virtual int delay_bind_dispatch(const char *varName, const char *localName, TclObject *tracer)

int closed_

int ts_option_size_

header bytes in a ts option

int pipe_

estimate of pipe occupancy (for Sack)

int pipectrl_

use pipe-style control

int open_cwnd_on_pack_

open cwnd on a partial ack?

int segs_per_ack_

for window updates

int nodelay_

disable sender-side Nagle?

int fastrecov_

are we in fast recovery?

int deflate_on_pack_

deflate on partial acks (reno:yes)

int data_on_syn_

send data on initial SYN?

double last_send_time_

time of last send

int close_on_empty_

close conn when buffer empty

int reno_fastrecov_

do reno-style fast recovery?

int infinite_send_

Always something to send

int tcprexmtthresh_

fast retransmit threshold

int iss_

initial send seq number

int irs_

initial recv'd (peer's iss)

int dupseg_fix_

fix bug with dup segs and dup acks?

int dupack_reset_

zero dupacks on dataful dup acks?

int halfclose_

allow simplex closes?

double delack_interval_

int headersize()

a tcp header w/opts

int outflags()

state-specific tcp header flags

int rcvseqinit(int, int)

how to set rcv_nxt_

int predict_ok(Packet*)

predicate for recv-side header prediction

int idle_restart()

should I restart after idle?

void fast_retransmit(int)

do a fast-retransmit on specified seg

inline double now()

void newstate(int ns)

future hook for traces

void finish()

void reset_rtx_timer(int)

adjust the rtx timer

virtual void timeout_action()

what to do on rtx timeout

virtual void dupack_action()

what to do on dup acks

virtual void pack_action(Packet*)

action on partial acks

virtual void ack_action(Packet*)

action on acks

virtual void reset()

reset to a known point

virtual void send_much(int force, int reason, int maxburst = 0)

virtual int build_options(hdr_tcp*)

insert opts, return len

void sendpacket(int seq, int ack, int flags, int dlen, int why)

void connect()

do active open

void listen()

do passive open

void usrclosed()

user requested a close

int need_send()

send ACK/win-update now?

void output(int seqno, int reason = 0)

output 1 packet

void newack(Packet* pkt)

process an ACK

int pack(Packet* pkt)

is this a partial ack?

void dooptions(Packet*)

process option(s)

DelAckTimer delack_timer_

other timers in tcp.h

void cancel_timers()

cancel all timers

int maxseg_

the following are part of a tcpcb in "real" RFC793 TCP MSS

int flags_

controls next output() call

int state_

enumerated type: FSM state

int ect_

turn on ect bit now?

int recent_ce_

last ce bit we saw

int last_state_

FSM state at last pkt recv

int rcv_nxt_

next sequence number expected

ReassemblyQueue rq_

TCP reassembly queue

int last_ack_sent_

the following are part of a tcpcb in "real" RFC1323 TCP ackno field from last segment we sent

double recent_

ts on SYN written by peer

double recent_age_

my time when recent_ was set

void set_initial_window()

setting iw, specific to tcp-full, called by TcpAgent::reset()

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Direct child classes:

TahoeFullTcpAgent
SackFullTcpAgent
NewRenoFullTcpAgent

alphabetic index hierarchy of classes

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Adapted for the NS documentation page

(c)opyright by Malte Zöckler, Roland Wunderling
contact: doc++@zib.de