Asymmetric Extended Route Optimization (AERO)
draft-templin-intarea-6706bis-03

• Status
• IESG evaluation record
• IESG writeups
• Email expansions
• History

• Versions
• 00
• 01
• 02
• 03

Network Working Group                                    F. Templin, Ed.
Internet-Draft                              Boeing Research & Technology
Obsoletes: rfc5320, rfc5558, rfc5720,                  December 17, 2018
           rfc6179, rfc6706 (if
           approved)
Intended status: Standards Track
Expires: June 20, 2019

             Asymmetric Extended Route Optimization (AERO)
                  draft-templin-intarea-6706bis-03.txt

Abstract

   This document specifies the operation of IP over tunnel virtual links
   using Asymmetric Extended Route Optimization (AERO).  Nodes attached
   to AERO links can exchange packets via trusted intermediate routers
   that provide forwarding services to reach off-link destinations and
   route optimization services for improved performance.  AERO provides
   an IPv6 link-local address format that supports operation of the IPv6
   Neighbor Discovery (ND) protocol and links ND to IP forwarding.
   Dynamic link selection, mobility management, quality of service (QoS)
   signaling and route optimization are naturally supported through
   dynamic neighbor cache updates, while IPv6 Prefix Delegation (PD) is
   supported by network services such as the Dynamic Host Configuration
   Protocol for IPv6 (DHCPv6).  AERO is a widely-applicable tunneling
   solution especially well-suited to aviation services, mobile Virtual
   Private Networks (VPNs) and other applications as described in this
   document.

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).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at https://datatracker.ietf.org/drafts/current/.

   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."

   This Internet-Draft will expire on June 20, 2019.

Templin                   Expires June 20, 2019                 [Page 1]
Internet-Draft                    AERO                     December 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
   (https://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
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   4
   3.  Asymmetric Extended Route Optimization (AERO) . . . . . . . .   7
     3.1.  AERO Link Reference Model . . . . . . . . . . . . . . . .   7
     3.2.  AERO Node Types . . . . . . . . . . . . . . . . . . . . .   9
     3.3.  AERO Routing System . . . . . . . . . . . . . . . . . . .  10
     3.4.  AERO Addresses  . . . . . . . . . . . . . . . . . . . . .  11
     3.5.  AERO Interface Characteristics  . . . . . . . . . . . . .  13
     3.6.  AERO Interface Initialization . . . . . . . . . . . . . .  16
       3.6.1.  AERO Relay Behavior . . . . . . . . . . . . . . . . .  16
       3.6.2.  AERO Server Behavior  . . . . . . . . . . . . . . . .  16
       3.6.3.  AERO Client Behavior  . . . . . . . . . . . . . . . .  17
       3.6.4.  AERO Proxy Behavior . . . . . . . . . . . . . . . . .  17
     3.7.  AERO Interface Neighbor Cache Maintenance . . . . . . . .  18
     3.8.  AERO Interface Forwarding Algorithm . . . . . . . . . . .  19
       3.8.1.  Client Forwarding Algorithm . . . . . . . . . . . . .  20
       3.8.2.  Proxy Forwarding Algorithm  . . . . . . . . . . . . .  20
       3.8.3.  Server Forwarding Algorithm . . . . . . . . . . . . .  21
       3.8.4.  Relay Forwarding Algorithm  . . . . . . . . . . . . .  21
       3.8.5.  Processing Return Packets . . . . . . . . . . . . . .  22
     3.9.  AERO Interface Encapsulation and Re-encapsulation . . . .  23
     3.10. AERO Interface Decapsulation  . . . . . . . . . . . . . .  24
     3.11. AERO Interface Data Origin Authentication . . . . . . . .  24
     3.12. AERO Interface Packet Size Issues . . . . . . . . . . . .  25
     3.13. AERO Interface Error Handling . . . . . . . . . . . . . .  27
     3.14. AERO Router Discovery, Prefix Delegation and
           Autoconfiguration . . . . . . . . . . . . . . . . . . . .  30