rfc793_SEGMENT_ARRIVES_elided.txt		rfc793bis_section_3.10.7.4_updated_no_bullets_elided.txt
	Otherwise,		Otherwise,
	first check sequence number		first check sequence number
	SYN-RECEIVED STATE		SYN-RECEIVED STATE
	ESTABLISHED STATE		ESTABLISHED STATE
	FIN-WAIT-1 STATE		FIN-WAIT-1 STATE
	FIN-WAIT-2 STATE		FIN-WAIT-2 STATE
	CLOSE-WAIT STATE		CLOSE-WAIT STATE
	CLOSING STATE		CLOSING STATE
	LAST-ACK STATE		LAST-ACK STATE
	TIME-WAIT STATE		TIME-WAIT STATE
	Segments are processed in sequence. Initial tests ...		Segments are processed in sequence. Initial tests ...
	<new text in bis>		In general, the processing of received segments MUST ...
	There are four cases for the acceptability test for ...		There are four cases for the acceptability test for ...
	Segment Receive Test		+=========+=========+======================================+
	Length Window		| Segment | Receive | Test |
	------- ------- ------------------------------------ ...		| Length | Window | |
			+=========+=========+================================== ...
	<new text in bis>		In implementing sequence number validation as described ...
	If the RCV.WND is zero, no segments will be acceptable, ...		If the RCV.WND is zero, no segments will be acceptable, ...
	If an incoming segment is not acceptable, an ...		If an incoming segment is not acceptable, an ...
	<SEQ=SND.NXT><ACK=RCV.NXT><CTL=ACK>		+ <SEQ=SND.NXT><ACK=RCV.NXT><CTL=ACK>
	After sending the acknowledgment, drop the unacceptable ...		After sending the acknowledgment, drop the unacceptable ...
	<new text in bis>		Note that for the TIME-WAIT state, there is an improved ...
	In the following it is assumed that the segment is the ...		In the following it is assumed that the segment is the ...
	second check the RST bit,		second check the RST bit,
	<new text in bis>		RFC 5961 [9] section 3 describes a potential blind reset ...
	<new text in bis>		1) If the RST bit is set and the sequence number is ...
	<new text in bis>		2) If the RST bit is set and the sequence number exactly ...
	<new text in bis>		3) If the RST bit is set and the sequence number does not ...
	<new text in bis>		<SEQ=SND.NXT><ACK=RCV.NXT><CTL=ACK>
	<new text in bis>		After sending the challenge ACK, TCP endpoints MUST ...
	SYN-RECEIVED STATE		SYN-RECEIVED STATE
	If the RST bit is set		If the RST bit is set
	If this connection was initiated with a passive ...		If this connection was initiated with a passive ...
	ESTABLISHED		ESTABLISHED
	FIN-WAIT-1		FIN-WAIT-1
	FIN-WAIT-2		FIN-WAIT-2
	CLOSE-WAIT		CLOSE-WAIT
	If the RST bit is set then, any outstanding RECEIVEs ...		If the RST bit is set then, any outstanding RECEIVEs ...
	CLOSING STATE		CLOSING STATE
	LAST-ACK STATE		LAST-ACK STATE
	TIME-WAIT		TIME-WAIT
	If the RST bit is set then, enter the CLOSED state ...		If the RST bit is set then, enter the CLOSED state ...
	third check security and precedence		third check security
	SYN-RECEIVED		SYN-RECEIVED
	If the security/compartment and precedence in the segment do not ...		If the security/compartment in the segment does not ...
	ESTABLISHED STATE		ESTABLISHED
	<new text in bis>		FIN-WAIT-1
	<new text in bis>		FIN-WAIT-2
	<new text in bis>		CLOSE-WAIT
	<new text in bis>		CLOSING
	<new text in bis>		LAST-ACK
	<new text in bis>		TIME-WAIT
	If the security/compartment and precedence in the segment do not ...		If the security/compartment in the segment does not ...
	Note this check is placed following the sequence check ...		Note this check is placed following the sequence check ...
	fourth, check the SYN bit,		fourth, check the SYN bit,
	SYN-RECEIVED		SYN-RECEIVED
	<new text in bis>		If the connection was initiated with a passive OPEN ...
	ESTABLISHED STATE		ESTABLISHED STATE
	FIN-WAIT STATE-1		FIN-WAIT STATE-1
	FIN-WAIT STATE-2		FIN-WAIT STATE-2
	CLOSE-WAIT STATE		CLOSE-WAIT STATE
	CLOSING STATE		CLOSING STATE
	LAST-ACK STATE		LAST-ACK STATE
	TIME-WAIT STATE		TIME-WAIT STATE
	If the SYN is in the window it is an error, ...		If the SYN bit is set in these synchronized states ...
	<new text in bis>		<SEQ=SND.NXT><ACK=RCV.NXT><CTL=ACK>
	<new text in bis>		After sending the acknowledgement, TCP implementations ...
	<new text in bis>		For implementations that do not follow RFC 5961 ...
	If the SYN is not in the window this step would ...		If the SYN is not in the window this step would ...
	fifth check the ACK field,		fifth check the ACK field,
	if the ACK bit is off drop the segment and return		if the ACK bit is off drop the segment and return
	if the ACK bit is on		if the ACK bit is on
	<new text in bis>		RFC 5961 [9] section 5 describes a potential blind data ...
	SYN-RECEIVED STATE		SYN-RECEIVED STATE
	If SND.UNA =< SEG.ACK =< SND.NXT then enter ESTABLISHED ...		If SND.UNA < SEG.ACK =< SND.NXT then enter ESTABLISHED ...
	<new text in bis>		SND.WND <- SEG.WND
	<new text in bis>		SND.WL1 <- SEG.SEQ
	<new text in bis>		SND.WL2 <- SEG.ACK
	If the segment acknowledgment is not acceptable, form ...		If the segment acknowledgment is not acceptable, form ...
	<SEQ=SEG.ACK><CTL=RST>		<SEQ=SEG.ACK><CTL=RST>
	and send it.		and send it.
	ESTABLISHED STATE		ESTABLISHED STATE
	If SND.UNA < SEG.ACK =< SND.NXT then, set SND.UNA ...		If SND.UNA < SEG.ACK =< SND.NXT then, set SND.UNA ...
	If SND.UNA < SEG.ACK =< SND.NXT, the send window ...		If SND.UNA =< SEG.ACK =< SND.NXT, the send window ...
	Note that SND.WND is an offset from SND.UNA, ...		Note that SND.WND is an offset from SND.UNA, ...
	FIN-WAIT-1 STATE		FIN-WAIT-1 STATE
	In addition to the processing for the ESTABLISHED ...		In addition to the processing for the ESTABLISHED ...
	FIN-WAIT-2 STATE		FIN-WAIT-2 STATE
	In addition to the processing for the ESTABLISHED ...		In addition to the processing for the ESTABLISHED ...
	CLOSE-WAIT STATE		CLOSE-WAIT STATE
	Do the same processing as for the ESTABLISHED state.		Do the same processing as for the ESTABLISHED state.
	CLOSING STATE		CLOSING STATE
	In addition to the processing for the ESTABLISHED ...		In addition to the processing for the ESTABLISHED ...
	LAST-ACK STATE		LAST-ACK STATE
	The only thing that can arrive in this state is ...		The only thing that can arrive in this state is ...
	TIME-WAIT STATE		TIME-WAIT STATE
	The only thing that can arrive in this state is ...		The only thing that can arrive in this state is ...
	sixth, check the URG bit,		sixth, check the URG bit,
	ESTABLISHED STATE		ESTABLISHED STATE
	FIN-WAIT-1 STATE		FIN-WAIT-1 STATE
	FIN-WAIT-2 STATE		FIN-WAIT-2 STATE
	If the URG bit is set, RCV.UP <- max(RCV.UP,SEG.UP) ...		If the URG bit is set, RCV.UP <- max(RCV.UP,SEG.UP) ...
	CLOSE-WAIT STATE		CLOSE-WAIT STATE
	CLOSING STATE		CLOSING STATE
	LAST-ACK STATE		LAST-ACK STATE
	TIME-WAIT		TIME-WAIT
	This should not occur, since a FIN has been received ...		This should not occur, since a FIN has been received ...
	seventh, process the segment text,		seventh, process the segment text,
	ESTABLISHED STATE		ESTABLISHED STATE
	FIN-WAIT-1 STATE		FIN-WAIT-1 STATE
	FIN-WAIT-2 STATE		FIN-WAIT-2 STATE
	Once in the ESTABLISHED state, it is possible to ...		Once in the ESTABLISHED state, it is possible to ...
	When the TCP takes responsibility for ...		When the TCP endpoint takes responsibility for ...
	Once the TCP takes responsibility for ...		Once the TCP endpoint takes responsibility for ...
	<new text in bis>		A TCP implementation MAY send an ACK segment ...
	Please note the window management suggestions in ...		Please note the window management suggestions in ...
	Send an acknowledgment of the form:		Send an acknowledgment of the form:
	<SEQ=SND.NXT><ACK=RCV.NXT><CTL=ACK>		<SEQ=SND.NXT><ACK=RCV.NXT><CTL=ACK>
	This acknowledgment should be piggybacked on a ...		This acknowledgment should be piggybacked on a ...
	CLOSE-WAIT STATE		CLOSE-WAIT STATE
	CLOSING STATE		CLOSING STATE
	LAST-ACK STATE		LAST-ACK STATE
	TIME-WAIT STATE		TIME-WAIT STATE
	This should not occur, since a FIN has been received ...		This should not occur, since a FIN has been received ...
	eighth, check the FIN bit,		eighth, check the FIN bit,
	Do not process the FIN if the state is CLOSED, LISTEN ...		Do not process the FIN if the state is CLOSED, LISTEN ...
	If the FIN bit is set, signal the user "connection ...		If the FIN bit is set, signal the user "connection ...
	SYN-RECEIVED STATE		SYN-RECEIVED STATE
	ESTABLISHED STATE		ESTABLISHED STATE
	Enter the CLOSE-WAIT state.		Enter the CLOSE-WAIT state.
	FIN-WAIT-1 STATE		FIN-WAIT-1 STATE
	If our FIN has been ACKed (perhaps in this ...		If our FIN has been ACKed (perhaps in this ...
	FIN-WAIT-2 STATE		FIN-WAIT-2 STATE
	Enter the TIME-WAIT state. Start the time-wait ...		Enter the TIME-WAIT state. Start the time-wait ...
	CLOSE-WAIT STATE		CLOSE-WAIT STATE
	Remain in the CLOSE-WAIT state.		Remain in the CLOSE-WAIT state.
	CLOSING STATE		CLOSING STATE
	Remain in the CLOSING state.		Remain in the CLOSING state.
	LAST-ACK STATE		LAST-ACK STATE
	Remain in the LAST-ACK state.		Remain in the LAST-ACK state.
	TIME-WAIT STATE		TIME-WAIT STATE
	Remain in the TIME-WAIT state. Restart the 2 MSL ...		Remain in the TIME-WAIT state. Restart the 2 MSL ...
	and return.		and return.
End of changes. 141 change blocks.
	142 lines changed or deleted		143 lines changed or added
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