Asymmetric Extended Route Optimization (AERO)
draft-templin-intarea-6706bis-70

Document Type Active Internet-Draft (individual)
Author Fred Templin 
Last updated 2020-11-02
Replaces draft-templin-aerolink
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Network Working Group                                    F. Templin, Ed.
Internet-Draft                              Boeing Research & Technology
Obsoletes: rfc5320, rfc5558, rfc5720,                   November 2, 2020
           rfc6179, rfc6706 (if
           approved)
Intended status: Standards Track
Expires: May 6, 2021

             Asymmetric Extended Route Optimization (AERO)
                    draft-templin-intarea-6706bis-70

Abstract

   This document specifies the operation of IP over Overlay Multilink
   Network (OMNI) interfaces using the Asymmetric Extended Route
   Optimization (AERO) internetworking and mobility management service.
   AERO/OMNI use an IPv6 link-local address format that supports
   operation of the IPv6 Neighbor Discovery (ND) protocol and links ND
   to IP forwarding.  Prefix delegation/registration services are
   employed for network admission and to manage the routing system.
   Multilink operation, mobility management, quality of service (QoS)
   signaling and route optimization are naturally supported through
   dynamic neighbor cache updates.  Standard IP multicasting services
   are also supported.  AERO is a widely-applicable mobile
   internetworking service especially well-suited to aviation services,
   intelligent transportation systems, mobile Virtual Private Networks
   (VPNs) and many other applications.

Status of This Memo

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

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   This Internet-Draft will expire on May 6, 2021.

Templin                    Expires May 6, 2021                  [Page 1]
Internet-Draft                    AERO                     November 2020

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   4
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   5
   3.  Asymmetric Extended Route Optimization (AERO) . . . . . . . .  10
     3.1.  AERO Node Types . . . . . . . . . . . . . . . . . . . . .  10
     3.2.  The AERO Service over OMNI Links  . . . . . . . . . . . .  12
       3.2.1.  AERO/OMNI Reference Model . . . . . . . . . . . . . .  12
       3.2.2.  Link-Local Addresses (LLAs) and Domain Local
               Addresses (DLAs)  . . . . . . . . . . . . . . . . . .  14
       3.2.3.  AERO Routing System . . . . . . . . . . . . . . . . .  15
       3.2.4.  OMNI Link Encapsulation . . . . . . . . . . . . . . .  16
       3.2.5.  Segment Routing Topologies (SRTs) . . . . . . . . . .  20
       3.2.6.  Segment Routing For OMNI Link Selection . . . . . . .  21
       3.2.7.  Segment Routing Within the OMNI Link  . . . . . . . .  22
     3.3.  OMNI Interface Characteristics  . . . . . . . . . . . . .  22
     3.4.  OMNI Interface Initialization . . . . . . . . . . . . . .  24
       3.4.1.  AERO Server/Relay Behavior  . . . . . . . . . . . . .  24
       3.4.2.  AERO Proxy Behavior . . . . . . . . . . . . . . . . .  25
       3.4.3.  AERO Client Behavior  . . . . . . . . . . . . . . . .  25
       3.4.4.  AERO Bridge Behavior  . . . . . . . . . . . . . . . .  25
     3.5.  OMNI Interface Neighbor Cache Maintenance . . . . . . . .  25
       3.5.1.  OMNI Neighbor Interface Attributes  . . . . . . . . .  27
       3.5.2.  OMNI Neighbor Advertisement Message Flags . . . . . .  28
     3.6.  OMNI Interface Encapsulation and Re-encapsulation . . . .  28
     3.7.  OMNI Interface Decapsulation  . . . . . . . . . . . . . .  30
     3.8.  OMNI Interface Data Origin Authentication . . . . . . . .  30
     3.9.  OMNI Adaptation Layer and OMNI Interface MTU  . . . . . .  30
     3.10. OMNI Interface Forwarding Algorithm . . . . . . . . . . .  31
       3.10.1.  Client Forwarding Algorithm  . . . . . . . . . . . .  32
       3.10.2.  Proxy Forwarding Algorithm . . . . . . . . . . . . .  32
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