K 10
svn:author
V 5
andre
K 8
svn:date
V 27
2013-07-05T15:57:36.058661Z
K 7
svn:log
V 932
MFC r242257:

 Remove bogus 'else' in #ifdef that prevented the rttvar from being reset
 tcp_timer_rexmt() on retransmit for IPv6 sessions.

MFC r242260:

 When retransmitting SYN in TCPS_SYN_SENT state use TCPTV_RTOBASE,
 the default retransmit timeout, as base to calculate the backoff
 time until next try instead of the TCP_REXMTVAL() macro which only
 works correctly when we already have measured an actual RTT+RTTVAR.

MFC r242263, r242264:

 Add SACK_PERMIT to the list of TCP options that are switched off after
 retransmitting a SYN three times.

MFC r242267:

 If the user has closed the socket then drop a persisting connection
 after a much reduced timeout.

 Typically web servers close their sockets quickly under the assumption
 that the TCP connections goes away as well.  That is not entirely true
 however.  If the peer closed the window we're going to wait for a long
 time with lots of data in the send buffer.

END