Asymmetric Extended Route Optimization (AERO)
draft-templin-intarea-6706bis-66
Network Working Group F. Templin, Ed.
Internet-Draft Boeing Research & Technology
Obsoletes: rfc5320, rfc5558, rfc5720, October 6, 2020
rfc6179, rfc6706 (if
approved)
Intended status: Standards Track
Expires: April 9, 2021
Asymmetric Extended Route Optimization (AERO)
draft-templin-intarea-6706bis-66
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.
Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute
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material or to cite them other than as "work in progress."
This Internet-Draft will expire on April 9, 2021.
Templin Expires April 9, 2021 [Page 1]
Internet-Draft AERO October 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 Site Local Addresses
(SLAs) . . . . . . . . . . . . . . . . . . . . . . . 14
3.2.3. AERO Routing System . . . . . . . . . . . . . . . . . 15
3.2.4. OMNI Link Encapsulation . . . . . . . . . . . . . . . 16
3.2.5. Segment Routing Topologies (SRTs) . . . . . . . . . . 18
3.2.6. Segment Routing To the OMNI Link . . . . . . . . . . 18
3.2.7. Segment Routing Within the OMNI Link . . . . . . . . 19
3.2.8. Segment Routing Header Compression . . . . . . . . . 21
3.3. OMNI Interface Characteristics . . . . . . . . . . . . . 21
3.4. OMNI Interface Initialization . . . . . . . . . . . . . . 23
3.4.1. AERO Server/Relay Behavior . . . . . . . . . . . . . 23
3.4.2. AERO Proxy Behavior . . . . . . . . . . . . . . . . . 24
3.4.3. AERO Client Behavior . . . . . . . . . . . . . . . . 24
3.4.4. AERO Bridge Behavior . . . . . . . . . . . . . . . . 24
3.5. OMNI Interface Neighbor Cache Maintenance . . . . . . . . 24
3.5.1. OMNI Neighbor Interface Attributes . . . . . . . . . 26
3.5.2. OMNI Neighbor Advertisement Message Flags . . . . . . 27
3.6. OMNI Interface Encapsulation and Re-encapsulation . . . . 27
3.7. OMNI Interface Decapsulation . . . . . . . . . . . . . . 29
3.8. OMNI Interface Data Origin Authentication . . . . . . . . 29
3.9. OMNI Adaptation Layer and OMNI Interface MTU . . . . . . 29
3.10. OMNI Interface Forwarding Algorithm . . . . . . . . . . . 30
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