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RFC 7413
Title: TCP Fast Open
Author: Y. Cheng, J. Chu,
S. Radhakrishnan, A. Jain
Status: Experimental
Stream: IETF
Date: December 2014
Mailbox: ycheng@google.com,
hkchu@google.com,
sivasankar@cs.ucsd.edu,
arvind@google.com
Pages: 26
Characters: 59945
Updates/Obsoletes/SeeAlso: None
I-D Tag: draft-ietf-tcpm-fastopen-10.txt
URL: https://www.rfc-editor.org/rfc/rfc7413.txt
This document describes an experimental TCP mechanism called TCP Fast Open
(TFO). TFO allows data to be carried in the SYN and SYN-ACK packets
and consumed by the receiving end during the initial connection
handshake, and saves up to one full round-trip time (RTT) compared to
the standard TCP, which requires a three-way handshake (3WHS) to
complete before data can be exchanged. However, TFO deviates from the
standard TCP semantics, since the data in the SYN could be replayed to
an application in some rare circumstances. Applications should not
use TFO unless they can tolerate this issue, as detailed in the
Applicability section.
This document is a product of the TCP Maintenance and Minor Extensions Working Group of the IETF.
EXPERIMENTAL: This memo defines an Experimental Protocol for the
Internet community. It does not specify an Internet standard of any
kind. Discussion and suggestions for improvement are requested.
Distribution of this memo is unlimited.
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