Network Working Group A. Retana
Internet-Draft S. Ratliff
Updates: 5820 (if approved) Cisco Systems, Inc.
Intended status: Experimental May 13, 2013
Expires: November 14, 2013
Use of the OSPF-MANET Interface in Single-Hop Broadcast Networks
draft-ietf-ospf-manet-single-hop-or-02
Abstract
This document describes the use of the OSPF-MANET interface in
single-hop broadcast networks. It includes a mechanism to
dynamically determine the presence of such a network and specific
operational considerations due to its nature.
This document updates [RFC5820].
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1. Single-Hop Broadcast Networks . . . . . . . . . . . . . . 2
2. Requirements Language . . . . . . . . . . . . . . . . . . . . 3
3. Single-Hop Network Operation . . . . . . . . . . . . . . . . 3
3.1. Use of Router Priority . . . . . . . . . . . . . . . . . 4
3.2. Unsynchronized Adjacencies . . . . . . . . . . . . . . . 5
4. Single-Hop Network Detection . . . . . . . . . . . . . . . . 5
4.1. Transition from multi-hop to single-hop mode . . . . . . 6
4.2. Transition from single-hop to multi-hop mode . . . . . . 6
5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 7
6. Security Considerations . . . . . . . . . . . . . . . . . . . 7
7. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 7
8. References . . . . . . . . . . . . . . . . . . . . . . . . . 7
8.1. Normative References . . . . . . . . . . . . . . . . . . 7
8.2. Informative References . . . . . . . . . . . . . . . . . 7
Appendix A. Change Log . . . . . . . . . . . . . . . . . . . . . 8
A.1. Changes between the -00 and -01 versions. . . . . . . . . 8
A.2. Changes between the -01 and -02 versions. . . . . . . . . 8
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 8
1. Introduction
The OSPF-MANET interface [RFC5820] uses the point-to-multipoint
adjacency model over a broadcast media to allow the following:
o all router-to-router connections are treated as if they were
point-to-point links.
o Link metric can be set on a per-neighbor basis.
o Broadcast and multicast can be accomplished through the Layer 2
broadcast capabilities of the media.
It is clear that the characteristics of the MANET interface can also
be beneficial in other types of network deployments; specifically in
single-hop broadcast capable networks which may have a different cost
associated with any pair of nodes.
This document updates [RFC5820] by describing the use of the MANET
interface in single-hop broadcast networks.
1.1. Single-Hop Broadcast Networks
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The OSPF extensions for MANET networks assume the ad-hoc formation of
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