Multi-Topology Extension for the Optimized Link State Routing Protocol Version 2 (OLSRv2)
RFC 7722
Internet Engineering Task Force (IETF) C. Dearlove
Request for Comments: 7722 BAE Systems
Updates: 7188, 7631 T. Clausen
Category: Experimental LIX, Ecole Polytechnique
ISSN: 2070-1721 December 2015
Multi-Topology Extension
for the Optimized Link State Routing Protocol Version 2 (OLSRv2)
Abstract
This specification describes an extension to the Optimized Link State
Routing Protocol version 2 (OLSRv2) to support multiple routing
topologies, while retaining interoperability with OLSRv2 routers that
do not implement this extension.
This specification updates RFCs 7188 and 7631 by modifying and
extending TLV registries and descriptions.
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/rfc7722.
Dearlove & Clausen Experimental [Page 1]
RFC 7722 Multi-Topology OLSRv2 December 2015
Copyright Notice
Copyright (c) 2015 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
(http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
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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.
Dearlove & Clausen Experimental [Page 2]
RFC 7722 Multi-Topology OLSRv2 December 2015
Table of Contents
1. Introduction ....................................................4
1.1. Motivation and Experimentation .............................4
2. Terminology and Notation ........................................5
3. Applicability Statement .........................................6
4. Protocol Overview and Functioning ...............................6
5. Parameters ......................................................8
6. Information Bases ...............................................9
6.1. Local Attached Network Set .................................9
6.2. Link Sets ..................................................9
6.3. 2-Hop Sets .................................................9
6.4. Neighbor Set ...............................................9
6.5. Router Topology Set .......................................10
6.6. Routable Address Topology Set .............................10
6.7. Attached Network Set ......................................10
6.8. Routing Sets ..............................................11
7. TLVs ...........................................................11
7.1. Message TLVs ..............................................11
7.1.1. MPR_TYPES TLV ......................................11
7.1.2. MPR_WILLING TLV ....................................11
7.2. Address Block TLVs ........................................12
7.2.1. LINK_METRIC TLV ....................................12
7.2.2. MPR TLV ............................................13
7.2.3. GATEWAY TLV ........................................13
8. HELLO Messages .................................................14
8.1. HELLO Message Generation ..................................14
8.2. HELLO Message Processing ..................................15
9. TC Messages ....................................................15
9.1. TC Message Generation .....................................15
9.2. TC Message Processing .....................................16
10. MPR Calculation ...............................................16
11. Routing Set Calculation .......................................17
12. Management Considerations .....................................17
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