K 10
svn:author
V 5
hiren
K 8
svn:date
V 27
2016-11-21T20:53:11.139012Z
K 7
svn:log
V 516
For RTT calculations mid-session, we explicitly ignore ACKs with tsecr of 0 as
many borken middle-boxes tend to do that. But during 3whs, in syncache_expand(),
we don't do that which causes us to send a RST to such a client. Relax this
constraint by only using tsecr to compare against timestamp that we sent when it
is not 0. As a result, we'd now accept the final ACK of 3whs with tsecr of 0.

Reviewed by:	    jtl, gnn
Sponsored by:	    Limelight Networks
Differential Revision:	https://reviews.freebsd.org/D8552

END