TCP Control Block Interdependence
draft-touch-tcpm-2140bis-02

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Last updated 2017-01-12
Replaces draft-welzl-tcpm-tcb-sharing
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TCPM WG                                                       J. Touch
Internet Draft                                                  USC/ISI
Intended status: Informational                                 M. Welzl
Expires: July 2017                                             S. Islam
                                                     University of Oslo
                                                                 J. You
                                                                 Huawei
                                                       January 12, 2017

                     TCP Control Block Interdependence
                      draft-touch-tcpm-2140bis-02.txt

Status of this Memo

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Touch, et al.           Expires July 12, 2017                  [Page 1]
Internet-Draft    TCP Control Block Interdependence        January 2017

   This Internet-Draft will expire on July 12, 2017.

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Abstract

   This memo describes interdependent TCP control blocks, where part of
   the TCP state is shared among similar concurrent or consecutive
   connections. TCP state includes a combination of parameters, such as
   connection state, current round-trip time estimates, congestion
   control information, and process information. Most of this state is
   maintained on a per-connection basis in the TCP Control Block (TCB),
   but implementations can (and do) share certain TCB information
   across connections to the same host. Such sharing is intended to
   improve overall transient transport performance, while maintaining
   backward-compatibility with existing implementations. The sharing
   described herein is limited to only the TCB initialization and so
   has no effect on the long-term behavior of TCP after a connection
   has been established.

Table of Contents

   1. Introduction...................................................3
   2. Conventions used in this document..............................3
   3. Terminology....................................................4
   4. The TCP Control Block (TCB)....................................4
   5. TCB Interdependence............................................5
   6. An Example of Temporal Sharing.................................5
   7. An Example of Ensemble Sharing.................................8
   8. Compatibility Issues..........................................10
   9. Implications..................................................12
   10. Implementation Observations..................................14
   11. Security Considerations......................................15
   12. IANA Considerations..........................................16
   13. References...................................................17
      13.1. Normative References....................................17

Touch                   Expires July 12, 2017                  [Page 2]
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