[babel] Last-minute tightening in rfc6126bis
Juliusz Chroboczek <jch@irif.fr> Fri, 26 April 2019 10:07 UTC
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Date: Fri, 26 Apr 2019 12:07:37 +0200
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From: Juliusz Chroboczek <jch@irif.fr>
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Subject: [babel] Last-minute tightening in rfc6126bis
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Dear all,
Joao Sobrinho has sent me his observations about convergence of a certain
class of routing protocols in the presence of metrics that are not
left-distributive. In short, it turns out that protocols such as DSDV can
cause persistent blackholes in some topologies if the metric being used is
not left-distributive.
Happily enough, Babel does not belong to the class of protocols that are
problematic. However, the current text describes the relevant property in
non-normative language. Thanks to Sobrinho's explanation, I've decided to
make the relevant property into a MUST. I believe that all existent
implementations already have the right property.
I've just committed the relevant changes to the github repository:
https://github.com/jech/babel-drafts/commit/5b038542a765b550cec487878f9f0acc2c2f82b0
I'll let them simmer for a few days, then push a new revision to the
datatracker.
-- Juliusz
- [babel] Last-minute tightening in rfc6126bis Juliusz Chroboczek
- Re: [babel] Last-minute tightening in rfc6126bis David Schinazi