> > Plan 9 ignores the zero length window and sends a single byte (2456ms), > > causing godaddy to hang up (2493ms). > > it is probing the zero window (rfc793, section 3.7)
for those, like me, who have not committed 793 to memory: "When the receiving TCP has a zero window and a segment arrives it must still send n acknowledgment show its next expected sequence number and current window (zero). p. 41 near the bottom. looks like godaddy's tcp has the bug. - erik