drcl.inet.transport
Class TCPb

java.lang.Object
  drcl.DrclObj
      drcl.comp.Component
          drcl.net.Module
              drcl.inet.Protocol
                  drcl.inet.transport.TCP
                      drcl.inet.transport.TCPb

All Implemented Interfaces:

ActiveComponent, java.lang.Cloneable, drcl.inet.transport.Connection, InetConstants, ObjectDuplicable, java.io.Serializable, TCPConstants

Direct Known Subclasses:

TCP_socket

public class TCPb

extends TCP

Bi-directional (Single-session) TCP Protocol. This class implements both the TCP sender and receiver. Basically it is a result of carefully merging TCP and TCPSink.

In the current implementation, ACKs are not piggy-backed in data segments. This will be fixed shortly.

See Also:

Serialized Form

Nested Class Summary

Nested classes inherited from class drcl.inet.transport.TCP

TCP.VegasVariables

Nested classes inherited from class drcl.comp.Component

Component.Locks

Field Summary

static boolean

NS_COMPATIBLE Sets to true to make TCP ns compatible

Fields inherited from class drcl.inet.transport.TCP

ackPort, AWND, AWND_DEFAULT, backoff, burst, bytesRetx, cur_rtt, CWND, cwndPort, DEBUG_ACK, DEBUG_DUPACK, DEBUG_LEVELS, DEBUG_RTT, DEBUG_SACK, DEBUG_SAMPLE, DEBUG_SEND, DEBUG_TIMEOUT, DEBUG_VEGAS, dt_max, dup_ack, implementation, INIT_SS_THRESHOLD, last_seq, maxburst, MAXCWND, MAXCWND_DEFAULT, maxrto, MSS, numack, NUMDUPACKS, numTimeouts, recvBuffer, rttvar_bits, rttvar_exp, rttvar_init, rttvarPort, rtxcur_init, SACK, sbuffer, seqNoPort, snd_max, snd_nxt, snd_nxt_marked, snd_nxt_recorded, snd_una, srtt_bits, srtt_init, srttPort, sstPort, state, sthld, t_grain, t_rttvar, t_rtxcur, t_srtt, TTL, vegas

Fields inherited from class drcl.net.Module

address, downPort, PortGroup_DOWN, PortGroup_UP, timerPort, upPort

Fields inherited from class drcl.comp.Component

FLAG_COMPONENT_NOTIFICATION, FLAG_DEBUG_ENABLED, FLAG_DIRECT_OUTPUT_ENABLED, FLAG_ENABLED, FLAG_ERROR_ENABLED, FLAG_EVENT_ENABLED, FLAG_EXPOSED, FLAG_GARBAGE_DISPLAY_ENABLED, FLAG_GARBAGE_ENABLED, FLAG_HAS_EXPOSED_CHILD, FLAG_PORT_NOTIFICATION, FLAG_STARTED, FLAG_STOPPED, FLAG_TRACE_ENABLED, FLAG_UNDEFINED_START, id, infoPort, locks, name, parent, PortGroup_DEFAULT_GROUP, PortGroup_EVENT, PortGroup_SERVICE, Root, Trace_DATA, Trace_SEND

Fields inherited from interface drcl.inet.transport.TCPConstants

ACK_EVENT, ACK_PORT_ID, CLOSE_WAIT, CLOSED, CLOSING, CWND_EVENT, CWND_PORT_ID, DEFAULT_PID, DELAY_ACK, ESTABLISHED, ESTABLISHED_FIN, ESTABLISHED_OVER, FIN_WAIT_1, FIN_WAIT_2, LAST_ACK, LISTEN, LISTEN1, LISTEN2, NEW_RENO, PRE_CLOSED, PRE_LAST_ACK, PRE_SYN_SENT, RECEIVE, RENO, RTT_EVT, RTTVAR_EVENT, RTTVAR_PORT_ID, RXT_EVT, SEND, SEQNO_EVENT, SEQNO_PORT_ID, SEQNO_RCV_EVENT, SEQNO_RCV_PORT_ID, SEQNO_SENT_EVENT, SEQNO_SENT_PORT_ID, SRTT_EVENT, SRTT_PORT_ID, SST_EVENT, SST_PORT_ID, STATES, SYN_RCVD, SYN_SENT, TAHOE, TIME_WAIT, TIMEOUT_TYPES, VEGAS

Fields inherited from interface drcl.inet.InetConstants

BYTE_MODE, DEFAULT_BANDWIDTH, DEFAULT_BUFFER_SIZE, DEFAULT_MTU, EVENT_ID_CHANGED_PORT_ID, EVENT_IDENTITY_ADDED, EVENT_IDENTITY_REMOVED, EVENT_IF_NEIGHBOR_DOWN, EVENT_IF_NEIGHBOR_UP, EVENT_IF_PORT_ID, EVENT_LINK_BROKEN, EVENT_LINK_BROKEN_PORT_ID, EVENT_MCAST_HOST_PORT_ID, EVENT_PKT_ARRIVAL, EVENT_PKT_ARRIVAL_PORT_ID, EVENT_RT_ENTRY_ADDED, EVENT_RT_ENTRY_MODIFIED, EVENT_RT_ENTRY_REMOVED, EVENT_RT_MCAST_CHANGED_PORT_ID, EVENT_RT_UCAST_CHANGED_PORT_ID, EVENT_VIF_NEIGHBOR_DOWN, EVENT_VIF_NEIGHBOR_UP, EVENT_VIF_PORT_ID, HOST_ENTRY_EXT, ID_CSL, MCAST_QUERY_PORT_ID, PACKET_MODE, PID_AODV, PID_DV, PID_DVMRP, PID_HELLO, PID_IGMP, PID_OSPF, PID_RSVP, PID_TCP, PID_UDP, SERVICE_CONFIGSW_PORT_ID, SERVICE_ID_PORT_ID, SERVICE_IF_PORT_ID, SERVICE_MCAST_PORT_ID, SERVICE_RT_PORT_ID, UCAST_QUERY_PORT_ID

Constructor Summary

TCPb()

TCPb(java.lang.String id_)

Method Summary

protected void	dataArriveAtDownPort(java.lang.Object data_, Port downPort_) The down port follows the PktDelivery contract.
protected void	dataArriveAtUpPort(java.lang.Object data_, Port upPort_) The handler invoked when a packet arrives at an "up" port.
void	duplicate(java.lang.Object source_) Duplicates the content of source_, including ID, name, child components and connections among them, to this component.
protected int	getAckNo()
protected int	getAvailableRcvBuffer()
int	getAvailableReceivingBuffers()
double	getDelayACKTimeout()
java.lang.String	getName() Returns the (informational) name of the component.
int	getReceivingBuffers()
java.lang.String	info() Returns information regarding this component.
boolean	isDelayACKEnabled()
void	reset() Resets the component for being used anew.
void	setDelayACKEnabled(boolean delayack_)
void	setDelayACKTimeout(double v_)
void	setDownPort(Port downPort_)
void	setMSS(int mss) Sets the maximum segment size.
void	setPeer(long peer_)
void	setReceivingBuffers(int awnd_)
void	setSackEnabled(boolean sack_)
void	setTTL(int ttl)

Methods inherited from class drcl.inet.transport.TCP

_start, ack_syn_fin, configInfo, configureRTT, getBASERTT_INIT, getDebugLevelNames, getImplementation, getLocalAddr, getLocalPort, getMAXCWND, getMAXRTO, getMSS, getNumBytesRetransmitted, getNumTimeouts, getPeer, getRemotePort, getRTTVAR_INIT, getSendingBuffer, getSeqNo, getSRTT_INIT, getState, getTick, getTTL, isMaxburstEnabled, isSackEnabled, option_process, recv, resetRXTTimer, rtt_init, rtt_update, rxt_timer, seq_max, setBASERTT_INIT, setImplementation, setMaxburstEnabled, setMAXCWND, setMAXRTO, setRTTVAR_INIT, setSRTT_INIT, setTick, snd_maxpck, snd_packet, snd_wnd, tcp_init, timeout, timer_backoff, win_decrease, win_increase, win_init

Methods inherited from class drcl.inet.Protocol

broadcast, broadcast, broadcast, broadcast, broadcast, broadcast, createConfigSwitchPort, createIDChangedEventPort, createIDServicePort, createIFEventPort, createIFQueryPort, createLinkBrokenEventPort, createMcastHostEventPort, createMcastQueryPort, createMulticastRTChangedEventPort, createPktArrivalEventPort, createRTServicePort, createUcastQueryPort, createUnicastRTChangedEventPort, createVIFEventPort, forward, forward, forward, forward, forward, forward, idAddedEventHandler, idRemovedEventHandler, LinkBrokenEventHandler, mcastHostJoinEventHandler, mcastHostLeaveEventHandler, neighborDownEventHandler, neighborUpEventHandler, pktArrivalHandler, processOther, routeQueryHandler, routeQueryHandler, rtAddedEventHandler, rtModifiedEventHandler, rtRemovedEventHandler, vNeighborDownEventHandler, vNeighborUpEventHandler

Methods inherited from class drcl.net.Module

cancelTimeout, deliver, getAddress, process, removeDefaultDownPort, removeDefaultUpPort, removeTimerPort, setAddress, setTimeout, setTimeoutAt

Methods inherited from class drcl.comp.Component

_resume, _stop, addComponent, addComponent, addEventPort, addEventPort, addForkPort, addPort, addPort, addPort, addPort, addPort, addPort, addPort, addPort, addServerPort, addServerPort, cancelFork, componentAdded, componentRemoved, connect, containsComponent, containsComponent, containsPort, debug, disconnectAll, disconnectAllPeers, disconnectAllPorts, drop, drop, error, error, expose, exposeEventPorts, exposePort, exposePort, exposePort, exposePort, exposePort, findAvailable, findAvailable, findAvailable, finishing, fork, forkAt, getAllComponents, getAllPorts, getAllPorts, getAllWiresInside, getAllWiresInsideOut, getAllWiresOut, getComponent, getComponentFlag, getComponentFlag, getContract, getContractHT, getContractHT, getDebugFlagsInBinary, getForkManager, getID, getParent, getPort, getPort, getRoot, getRuntime, getTime, iduplicate, isAncestorOf, isComponentNotificationEnabled, isContainer, isDebugEnabled, isDebugEnabledAt, isDirectlyRelatedTo, isDirectOutputEnabled, isEnabled, isErrorNoticeEnabled, isEventExportEnabled, isGarbageDisplayEnabled, isGarbageEnabled, isPortNotificationEnabled, isPortRemovable, isStarted, isStopped, isTraceEnabled, lock, notify, notifyAll, operate, portAdded, portRemoved, reboot, removeAll, removeAllComponents, removeAllPorts, removeAllPorts, removeComponent, removeComponent, removePort, removePort, removePort, resume, run, sduplicate, send, sendAt, setComponentFlag, setComponentFlag, setComponentNotificationEnabled, setContract, setDebugEnabled, setDebugEnabled, setDebugEnabledAt, setDebugEnabledAt, setDebugEnabledAt, setDirectOutputEnabled, setDirectOutputEnabled, setEnabled, setErrorNoticeEnabled, setErrorNoticeEnabled, setEventExportEnabled, setEventExportEnabled, setExecutionBoundary, setGarbageDisplayEnabled, setGarbageDisplayEnabled, setGarbageEnabled, setGarbageEnabled, setID, setID, setName, setPort, setPort, setPortNotificationEnabled, setPortRemovable, setRuntime, setTraceEnabled, setTraceEnabled, sleepFor, sleepUntil, stop, toString, unexpose, unlock, useLocalForkManager, useLocalForkManager, wait, yield

Methods inherited from class drcl.DrclObj

clone

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

NS_COMPATIBLE

public static boolean NS_COMPATIBLE

Sets to true to make TCP ns compatible

Constructor Detail

TCPb

public TCPb()

TCPb

public TCPb(java.lang.String id_)

Method Detail

getName

public java.lang.String getName()

Description copied from class: Component

Returns the (informational) name of the component.

Overrides:

getName in class TCP

reset

public void reset()

Description copied from class: Component

Resets the component for being used anew. All the internal variables must be set to the initial state. All the ports and child components are reset as well.

Overrides:

reset in class TCP

duplicate

public void duplicate(java.lang.Object source_)

Description copied from class: Component

Duplicates the content of source_, including ID, name, child components and connections among them, to this component. Subclasses need to override this method to copy its own variables.

Specified by:

duplicate in interface ObjectDuplicable

Overrides:

duplicate in class TCP

setDownPort

public void setDownPort(Port downPort_)

setTTL

public void setTTL(int ttl)

Overrides:

setTTL in class TCP

setMSS

public void setMSS(int mss)

Description copied from class: TCP

Sets the maximum segment size. This method initializes this TCP component. Should not be called during simulation.

Overrides:

setMSS in class TCP

setReceivingBuffers

public void setReceivingBuffers(int awnd_)

getReceivingBuffers

public int getReceivingBuffers()

getAvailableReceivingBuffers

public int getAvailableReceivingBuffers()

setSackEnabled

public void setSackEnabled(boolean sack_)

Overrides:

setSackEnabled in class TCP

setDelayACKEnabled

public void setDelayACKEnabled(boolean delayack_)

isDelayACKEnabled

public boolean isDelayACKEnabled()

setDelayACKTimeout

public void setDelayACKTimeout(double v_)

getDelayACKTimeout

public double getDelayACKTimeout()

setPeer

public void setPeer(long peer_)

Overrides:

setPeer in class TCP

dataArriveAtUpPort

protected void dataArriveAtUpPort(java.lang.Object data_,
                                  Port upPort_)

Description copied from class: Module

The handler invoked when a packet arrives at an "up" port. Subclasses should override it to handle such an event.

Overrides:

dataArriveAtUpPort in class TCP

dataArriveAtDownPort

protected void dataArriveAtDownPort(java.lang.Object data_,
                                    Port downPort_)

The down port follows the PktDelivery contract.

Overrides:

dataArriveAtDownPort in class TCP

getAckNo

protected int getAckNo()

Overrides:

getAckNo in class TCP

getAvailableRcvBuffer

protected int getAvailableRcvBuffer()

Overrides:

getAvailableRcvBuffer in class TCP

info

public java.lang.String info()

Description copied from class: Component

Returns information regarding this component. Subclasses should override this method to provide useful information at run time.

Overrides:

info in class TCP