Generic Multi-Access (GMA) Encapsulation Protocol
draft-zhu-intarea-gma-07

Document Type Active Internet-Draft (individual)
Authors Jing Zhu  , Satish Kanugovi 
Last updated 2020-05-14
Stream ISE
Intended RFC status Informational
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Document shepherd Adrian Farrel
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INTAREA/Network Working Group                                   J. Zhu
Internet Draft                                                  Intel
Intended status: Informational                            S. Kanugovi
Expires: November 14,2020                                       Nokia
                                                          May 14, 2020

            Generic Multi-Access (GMA) Encapsulation Protocol
                         draft-zhu-intarea-gma-07

Abstract

   Today, a device can be simultaneously connected to multiple
   networks, e.g. Wi-Fi, LTE, 5G, and DSL. It is desirable to combine
   them seamlessly to improve quality of experience. Such
   optimization requires additional control information, e.g.
   Sequence Number, in each (IP) data packet. This document presents
   a new light-weight and flexible encapsulation protocol for this
   need. The solution has been developed by the authors based on
   their experiences in multiple standards bodies including the IETF
   and 3GPP, is not an Internet Standard and does not represent the
   consensus opinion of the IETF. This document will enable other
   developers to build interoperable implementations.

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
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   This Internet-Draft will expire on November 14, 2020.

Zhu                   Expires November 14, 2020                [Page 1]
Internet-Draft       GMA Encapsulation Protocols               May 2020

Copyright Notice

   Copyright (c) 2020 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 ................................................. 2
   2. Conventions used in this document ............................ 4
   3. Use Case ..................................................... 4
   4. GMA Encapsulation Formats .................................... 5
   5. Fragmentation ................................................ 9
   6. Concatenation ............................................... 11
   7. Security Considerations ..................................... 12
   8. IANA Considerations ......................................... 12
   9. References .................................................. 12
      9.1. Normative References ..................................12
      9.2. Informative References ................................12

1. Introduction

   Figure 1 shows the Multi-Access Management Service (MAMS) user-
   plane protocol stack [MAMS], which has been used in today's multi-
   access solutions [ATSSS] [LWIPEP] [GRE]. It consists of two
   layers: convergence and adaptation.

   The convergence layer is responsible for multi-access operations,
   including multi-link (path) aggregation, splitting/reordering,
   lossless switching/retransmission, fragmentation, concatenation,
   etc. It operates on top of the adaptation layer in the protocol
   stack. From the Transmitter perspective, a User Payload (e.g. IP
   packet) is processed by the convergence layer first, and then by
   the adaptation layer before being transported over a delivery
   connection; from the Receiver perspective, an IP packet received
   over a delivery connection is processed by the adaptation layer
   first, and then by the convergence layer.

Zhu                   Expires November  14, 2020               [Page 2]
Internet-Draft       GMA Encapsulation Protocols               May 2020

          +-----------------------------------------------------+
          |   User Payload, e.g., IP Protocol Data Unit (PDU)   |
          +-----------------------------------------------------+
       +-----------------------------------------------------------+
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