TCP SYN Extended Option Space Using an Out-of-Band Segment
draft-touch-tcpm-tcp-syn-ext-opt-06

Document Type Active Internet-Draft (individual)
Last updated 2017-01-03
Stream (None)
Intended RFC status (None)
Formats plain text pdf html bibtex
Stream Stream state (No stream defined)
Consensus Boilerplate Unknown
RFC Editor Note (None)
IESG IESG state I-D Exists
Telechat date
Responsible AD (None)
Send notices to (None)
TCPM WG                                                        J. Touch
Internet Draft                                                  USC/ISI
Intended status: Experimental                                  T. Faber
Expires: July 2017                            The Aerospace Corporation
                                                       January 3, 2017

        TCP SYN Extended Option Space Using an Out-of-Band Segment
                  draft-touch-tcpm-tcp-syn-ext-opt-06.txt

Status of this Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF), its areas, and its working groups.  Note that
   other groups may also distribute working documents as Internet-
   Drafts.

   Internet-Drafts are draft documents valid for a maximum of six
   months and may be updated, replaced, or obsoleted by other documents
   at any time.  It is inappropriate to use Internet-Drafts as
   reference material or to cite them other than as "work in progress."

   The list of current Internet-Drafts can be accessed at
   http://www.ietf.org/ietf/1id-abstracts.txt

   The list of Internet-Draft Shadow Directories can be accessed at
   http://www.ietf.org/shadow.html

   This Internet-Draft will expire on July 3, 2017.

Copyright Notice

   Copyright (c) 2017 IETF Trust and the persons identified as the
   document authors. All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (http://trustee.ietf.org/license-info) in effect on the date of
   publication of this document. Please review these documents
   carefully, as they describe your rights and restrictions with
   respect to this document.

Touch                    Expires July 3, 2017                  [Page 1]
Internet-Draft               TCP SYN-EOS                   January 2017

Abstract

   This document describes an experimental method to extend the option
   space for connection parameters within the initial TCP SYN segment,
   at the start of a TCP connection. This method effectively extends
   the option space of an initial SYN by using an additional coupled
   segment that is sent 'out-of-band'. It complements the proposed
   Extended Data Offset (EDO) option that is applicable only after the
   initial segment.

Table of Contents

   1. Introduction...................................................2
   2. Conventions used in this document..............................3
   3. Experiment Goals...............................................3
   4. Using Multiple Segments to Establish a Connection..............4
   5. The TCP SYN-EOS Option.........................................5
      5.1. Reliable Delivery of Lone Initial Segments................7
      5.2. Reliable Delivery of a Lone SYN with SYN-EOS..............7
      5.3. Interaction with EDO......................................8
   6. Issues.........................................................9
      6.1. General Issues............................................9
      6.2. Option processing order...................................9
      6.3. Middlebox Transit Issues.................................10
      6.4. Interaction with Other TCP Options.......................11
      6.5. TCP Fast Open............................................11
         6.5.1. TCP Authentication Option and TCP MD5...............11
   7. TCP SYN-EOS Interaction with TCP..............................11
      7.1. TCP User Interface.......................................11
      7.2. TCP States and Transitions...............................11
      7.3. TCP Segment Processing...................................11
      7.4. Impact on TCP Header Size................................11
   8. Error Conditions..............................................12
      8.1. Connectionless Resets....................................12
      8.2. ICMP Handling............................................12
   9. Security Considerations.......................................12
   10. IANA Considerations..........................................12
   11. References...................................................12
      11.1. Normative References....................................12
      11.2. Informative References..................................12
   12. Acknowledgments..............................................13

1. Introduction

   This document describes a method to extend the option space
   available in the initial SYN segment of a TCP connection (e.g., SYN

Touch                    Expires July 3, 2017                  [Page 2]
Internet-Draft               TCP SYN-EOS                   January 2017
Show full document text