Use of the OSPF-MANET Interface in Single-Hop Broadcast Networks
RFC 7137
| Document | Type |
RFC - Experimental
(February 2014; No errata)
Updates RFC 5820
|
|
|---|---|---|---|
| Last updated | 2015-10-14 | ||
| Replaces | draft-retana-ospf-manet-single-hop | ||
| Stream | IETF | ||
| Formats | plain text pdf html bibtex | ||
| Reviews | |||
| Stream | WG state | Submitted to IESG for Publication | |
| Document shepherd | Yi Yang | ||
| Shepherd write-up | Show (last changed 2013-11-04) | ||
| IESG | IESG state | RFC 7137 (Experimental) | |
| Consensus Boilerplate | Unknown | ||
| Telechat date | |||
| Responsible AD | Stewart Bryant | ||
| Send notices to | (None) | ||
| IANA | IANA review state | IANA OK - No Actions Needed | |
| IANA action state | No IC | ||
Internet Engineering Task Force (IETF) A. Retana
Request for Comments: 7137 S. Ratliff
Updates: 5820 Cisco Systems, Inc.
Category: Experimental February 2014
ISSN: 2070-1721
Use of the OSPF-MANET Interface in Single-Hop Broadcast Networks
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 RFC 5820.
Status of This Memo
This document is not an Internet Standards Track specification; it is
published for examination, experimental implementation, and
evaluation.
This document defines an Experimental Protocol for the Internet
community. This document is a product of the Internet Engineering
Task Force (IETF). It represents the consensus of the IETF
community. It has received public review and has been approved for
publication by the Internet Engineering Steering Group (IESG). Not
all documents approved by the IESG are a candidate for any level of
Internet Standard; see Section 2 of RFC 5741.
Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
http://www.rfc-editor.org/info/rfc7137.
Retana & Ratliff Experimental [Page 1]
RFC 7137 MANET Single-Hop Broadcast Networks February 2014
Copyright Notice
Copyright (c) 2014 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
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the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1. Single-Hop Broadcast Networks . . . . . . . . . . . . . . 3
2. Requirements Language . . . . . . . . . . . . . . . . . . . . 3
3. Single-Hop Network Operation . . . . . . . . . . . . . . . . 4
3.1. Use of Router Priority . . . . . . . . . . . . . . . . . 4
3.2. Unsynchronized Adjacencies . . . . . . . . . . . . . . . 5
4. Single-Hop Network Detection . . . . . . . . . . . . . . . . 6
4.1. Transition from Multi-Hop to Single-Hop Mode . . . . . . 6
4.2. Transition from Single-Hop to Multi-Hop Mode . . . . . . 7
5. Security Considerations . . . . . . . . . . . . . . . . . . . 7
6. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 7
7. References . . . . . . . . . . . . . . . . . . . . . . . . . 7
7.1. Normative References . . . . . . . . . . . . . . . . . . 7
7.2. Informative References . . . . . . . . . . . . . . . . . 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 The 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.
Retana & Ratliff Experimental [Page 2]
RFC 7137 MANET Single-Hop Broadcast Networks February 2014
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 that 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; this consists of its
simplified operation by not requiring the use of overlapping relays
as well as introducing a new heuristic for smart peering using the
Router Priority.
1.1. Single-Hop Broadcast Networks
The OSPF extensions for MANETs assume the ad hoc formation of a
network over bandwidth-constrained wireless links, where packets may
traverse several intermediate nodes before reaching their destination
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