Multipath Transmission Control Protocol (MPTCP) Partial Reliability Extension
draft-xu-mptcp-prmp-04

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Network Working Group                                     Changqiao Xu 
Internet Draft                                                   BUPT 
Intended status: Experimental                               Hui Huang 
Expires: December 2017                                           BUPT 
                                                          Hongke Zhang 
                                                                 BUPT 
                                                        Chunshan Xiong 
                                          Huawei Technologies Co., Ltd 
                                                              Lei Zhu 
                                          Huawei Technologies Co., Ltd 
                                                         June 20, 2017 
                                        
             Multipath Transmission Control Protocol (MPTCP) 
                      Partial Reliability Extension 
                       draft-xu-mptcp-prmp-04.txt 

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Xu, et al            Expires December 20, 2017               [Page 1] 
     

Internet-Draft   MPTCP Partial Reliability Extension         June 2017 

   This Internet-Draft will expire on December 21, 2017. 

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Abstract 

   This memo presents an extension to the Multipath Transmission Control 
   Protocol (MPTCP) that allows MPTCP endpoints in which case both 
   sender side and receiver side support this function to provide 
   partially reliable data transmission service to the upper layer 
   applications. In order to achieve the above goal, this memo extents 
   MPTCP by adding two new subtypes which are expressed as "PR_CAPABLE" 
   and "ACK_NOTIFY" and the corresponding processes are also introduced. 
   The extension can provide the backward-compatibility with MPTCP if 
   the new features are not available. 

   Table of Contents 

   1. Introduction ................................................ 3 
      1.1. Motivation ............................................. 3 
      1.2. Overview of PR-MPTCP.................................... 3 
   2. Conventions ................................................. 3 
   3. New Options ................................................. 3 
      3.1. PR_CAPABLE Option 
.......................................4 
      3.2. ACK_NOTIFY Option 
.......................................5 
   4. PR-MPTCP Workflow ........................................... 6 
      4.1. Connection Initialization 
...............................6 
      4.2. Process of Forced Acknowledged Packets ..................7 
         4.2.1.Sender Side Implementation ......................... 7 
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