Homenet profile of the Babel routing protocol
draft-ietf-homenet-babel-profile-02
Network Working Group J. Chroboczek
Internet-Draft IRIF, University of Paris-Diderot
Intended status: Experimental July 3, 2017
Expires: January 4, 2018
Homenet profile of the Babel routing protocol
draft-ietf-homenet-babel-profile-02
Abstract
This document defines the subset of the Babel routing protocol
[RFC6126] and its extensions that a Homenet router must implement, as
well as the interactions between HNCP [RFC7788] and Babel.
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1. Background . . . . . . . . . . . . . . . . . . . . . . . 2
2. The Homenet profile of Babel . . . . . . . . . . . . . . . . 3
2.1. Requirements . . . . . . . . . . . . . . . . . . . . . . 3
2.2. Non-requirements . . . . . . . . . . . . . . . . . . . . 4
3. Interactions between HNCP and Babel . . . . . . . . . . . . . 5
3.1. Requirements . . . . . . . . . . . . . . . . . . . . . . 5
3.2. Non-requirements . . . . . . . . . . . . . . . . . . . . 6
4. Security Considerations . . . . . . . . . . . . . . . . . . . 6
5. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 7
6. References . . . . . . . . . . . . . . . . . . . . . . . . . 7
6.1. Normative References . . . . . . . . . . . . . . . . . . 7
6.2. Informative References . . . . . . . . . . . . . . . . . 7
Author's Address . . . . . . . . . . . . . . . . . . . . . . . . 8
1. Introduction
The core of the Homenet protocol suite consists of HNCP [RFC7788], a
protocol used for flooding configuration information and assigning
prefixes to links, combined with the Babel routing protocol
[RFC6126]. Babel is an extensible, flexible and modular protocol:
minimal implementations of Babel have been demonstrated that consist
of a few hundred of lines of code, while the "large" implementation
includes support for a number of extensions and consists of over ten
thousand lines of C code.
This document consists of two parts. The first specifies the exact
subset of the Babel protocol and its extensions that is required by
an implementation of the Homenet protocol suite. The second
specifies how HNCP interacts with Babel.
1.1. Background
The Babel routing protocol and its extensions are defined in a number
of documents:
o The body of RFC 6126 [RFC6126] defines the core, unextended
protocol. It allows Babel's control data to be carried over
either link-local IPv6 or IPv4, and in either case allows
announcing both IPv4 and IPv6 routes. It leaves link cost
estimation, metric computation and route selection to the
implementation. Distinct implementations of core RFC 6126 Babel
will interoperate and maintain a set of loop-free forwarding
paths, but given conflicting metrics or route selection policies
may give rise to persistent oscillations.
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