Re: TCP Question


CLYNN@G.BBN.COM
12 Nov 1986 10:09-EST


... The implementation may not be technically invalid since there is
a catch-22. The description of the status command lists "number of
buffers awaiting acknowledgement" and "number of buffers pending
receipt" as data available to the application writer (tcp user). By
first doing the TCP Close (which in some systems is NOT the same as a
file system "close") and then doing status calls to make sure that the
"number of buffers awaiting acknowledgement" returned is zero, one can
make sure that all outstanding data got as far as the remote TCP. The
catch-22 is the first sentence under the description of status command
... "This ... could be excluded without adverse effect."



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