A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : Inner Space for all TCP Options (Kitchen Sink Draft - to be Split Up)
Author : Bob Briscoe
Filename : draft-briscoe-tcpm-inspace-mode-tcpbis-00.txt
Pages : 72
Date : 2015-03-09
Abstract:
This document describes an experimental redesign of TCP's
extensibility mechanism. It aims to traverse most known middleboxes
including connection splitters, by making it possible to tunnel all
TCP options within the TCP Data. It provides a choice between in-
order and out-of-order delivery for TCP options. In-order delivery
is a useful new facility for options that control datastream
processing. Out-of-order delivery has been the norm for TCP options
until now, and is necessary for options involved with acknowledging
data, otherwise flow control can deadlock. TCP's original design
limits TCP option space to 40B. In the new design there is no such
arbitrary limit, other than the maximum size of a segment. The TCP
client can immediately start to use the extra option space
optimistically from the very first SYN segment, by using a dual
handshake. The dual handshake is designed to prevent a legacy server
from getting confused and sending the control options to the
application as user-data. The dual handshake is only one strategy -
a single handshake will usually suffice once deployment is underway.
In summary, the protocol should allow new TCP options to be
introduced i) with minimal middlebox traversal problems; ii) with
incremental deployment from legacy servers; iii) with zero
handshaking delay iv) with a choice of in-order and out-of-order
delivery v) without arbitrary limits on available space.
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-briscoe-tcpm-inspace-mode-tcpbis/
There's also a htmlized version available at:
http://tools.ietf.org/html/draft-briscoe-tcpm-inspace-mode-tcpbis-00
Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.
Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/
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