MPT Network Layer Multipath Library
draft-lencse-tsvwg-mpt-02

Document Type Active Internet-Draft (individual)
Last updated 2018-06-11
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)
Network Working Group                                        G. Lencse
Internet Draft                       Budapest Univ. of Tech. and Econ.
Intended status: Experimental                             Sz. Szilagyi
Expires: December 2018                                        F. Fejes
                                                University of Debrecen
                                                          M. Georgescu
                                                               RCS&RDS
                                                         June 11, 2018

                    MPT Network Layer Multipath Library
                       draft-lencse-tsvwg-mpt-02.txt

Abstract

   Although several contemporary IT devices have multiple network
   interfaces, communication sessions are restricted to use only one of
   them at a time due to the design of the TCP/IP protocol stack: the
   communication endpoint is identified by an IP address and a TCP or
   UDP port number. The simultaneous use of these multiple interfaces
   for a communication session would improve user experience through
   higher throughput and improved resilience to network failures.

   MPT is a network layer multipath solution, which provides a tunnel
   over multiple paths using the GRE-in-UDP specification, thus being
   different from both MPTCP and Huawei's GRE Tunnel Bonding Protocol.

   MPT can also be used as a router, routing the packets among several
   networks between the tunnel endpoints, thus establishing a multipath
   site-to-site connection.

   The version of tunnel IP and the version of path IP are independent
   from each other, therefore MPT can also be used for IPv6 transition
   purposes.

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.

Lencse et al.         Expires December 11, 2018               [Page 1]
Internet-Draft   MPT Network Layer Multipath Library         June 2018

   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 December 11, 2018.

Copyright Notice

   Copyright (c) 2018 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. Code Components extracted from this
   document must include Simplified BSD License text as described in
   Section 4.e of the Trust Legal Provisions and are provided without
   warranty as described in the Simplified BSD License.

Table of Contents

   1. Introduction ................................................. 3
      1.1. Design Assumptions ...................................... 3
      1.2. MPT in the Networking Stack ............................. 3
      1.3. Terminology ............................................. 4
      1.4. MPT Concept ............................................. 5
   2. Conventions Used in this Document ............................ 6
   3. Operation Overview ........................................... 6
   4. MPT Control .................................................. 8
      4.1. Configuration Information ............................... 8
         4.1.1. General Information for the MPT Server ............. 8
         4.1.2. Connection Specifications .......................... 9
      4.2. MPT Configuration Commands ............................. 13
   5. Possible Mappings of the Tunnel Traffic to Paths ............ 14
      5.1. Per Packet Based Mapping ............................... 17
      5.2. Flow Based Mapping ..................................... 18
      5.3. Combined Mapping ....................................... 19
   6. Packet Reordering ........................................... 19

Lencse et al.         Expires December 11, 2018               [Page 2]
Internet-Draft   MPT Network Layer Multipath Library         June 2018

   7. Why MPT is Considered Experimental? ......................... 20
      7.1. Published Results ...................................... 21
         7.1.1. MPT Concept and First Implementation .............. 21
Show full document text