Asymmetric Extended Route Optimization (AERO)
draft-templin-intarea-6706bis-94
Network Working Group F. Templin, Ed.
Internet-Draft Boeing Research & Technology
Obsoletes: rfc5320, rfc5558, rfc5720, February 9, 2021
rfc6179, rfc6706 (if
approved)
Intended status: Standards Track
Expires: August 13, 2021
Asymmetric Extended Route Optimization (AERO)
draft-templin-intarea-6706bis-94
Abstract
This document specifies an Asymmetric Extended Route Optimization
(AERO) service for IP internetworking over Overlay Multilink Network
(OMNI) interfaces. 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, multicast, quality
of service (QoS) signaling and route optimization are naturally
supported through dynamic neighbor cache updates. 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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material or to cite them other than as "work in progress."
This Internet-Draft will expire on August 13, 2021.
Templin Expires August 13, 2021 [Page 1]
Internet-Draft AERO February 2021
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 4
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 5
3. Asymmetric Extended Route Optimization (AERO) . . . . . . . . 11
3.1. AERO Node Types . . . . . . . . . . . . . . . . . . . . . 11
3.2. The AERO Service over OMNI Links . . . . . . . . . . . . 12
3.2.1. AERO/OMNI Reference Model . . . . . . . . . . . . . . 12
3.2.2. Addressing and Node Identification . . . . . . . . . 15
3.2.3. AERO Routing System . . . . . . . . . . . . . . . . . 16
3.2.4. OMNI Link Segment Routing . . . . . . . . . . . . . . 18
3.2.5. Segment Routing Topologies (SRTs) . . . . . . . . . . 22
3.2.6. Segment Routing For OMNI Link Selection . . . . . . . 23
3.2.7. Segment Routing Within the OMNI Link . . . . . . . . 23
3.3. OMNI Interface Characteristics . . . . . . . . . . . . . 24
3.4. OMNI Interface Initialization . . . . . . . . . . . . . . 26
3.4.1. AERO Server/Relay Behavior . . . . . . . . . . . . . 26
3.4.2. AERO Proxy Behavior . . . . . . . . . . . . . . . . . 26
3.4.3. AERO Client Behavior . . . . . . . . . . . . . . . . 27
3.4.4. AERO Bridge Behavior . . . . . . . . . . . . . . . . 27
3.5. OMNI Interface Neighbor Cache Maintenance . . . . . . . . 27
3.5.1. OMNI Neighbor Interface Attributes . . . . . . . . . 29
3.5.2. OMNI Neighbor Advertisement Message Flags . . . . . . 30
3.6. OMNI Interface Encapsulation and Re-encapsulation . . . . 30
3.7. OMNI Interface Decapsulation . . . . . . . . . . . . . . 32
3.8. OMNI Interface Data Origin Authentication . . . . . . . . 32
3.9. OMNI Adaptation Layer and OMNI Interface MTU . . . . . . 32
3.10. OMNI Interface Forwarding Algorithm . . . . . . . . . . . 33
3.10.1. Client Forwarding Algorithm . . . . . . . . . . . . 34
3.10.2. Proxy Forwarding Algorithm . . . . . . . . . . . . . 35
3.10.3. Server/Relay Forwarding Algorithm . . . . . . . . . 36
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