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Re: [babel] [Babel-users] MAC rekeying in babeld and information model

Juliusz Chroboczek <jch@irif.fr> Mon, 20 January 2020 19:54 UTC

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Date: Mon, 20 Jan 2020 20:54:41 +0100
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From: Juliusz Chroboczek <jch@irif.fr>
To: "STARK, BARBARA H" <bs7652@att.com>
Cc: 'Toke Høiland-Jørgensen' <toke@toke.dk>, "'babel-users@lists.alioth.debian.org'" <babel-users@lists.alioth.debian.org>, "'babel@ietf.org'" <babel@ietf.org>
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Subject: Re: [babel] [Babel-users] MAC rekeying in babeld and information model
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>> The second part of my inquiry -- how does the information model enable
>> incremental deployment?  Section 5 of draft-ietf-babel-mac.

> Incremental deployment is enabled through the interfaces object
> babel-mac-verify parameter. Set this parameter to false until all
> routers have key(s). Then set to true.

Ah, ok.  That's fine, then, sorry for missing it.

> I don't think an additional per-interface parameter is needed. I think
> babel-mac-verify should be fine.

Agreed.

> If the group wants to remove the key-use parameters and only support
> symmetrical keying, I have no objection. We could also make those
> parameters optional-to-implement (square brackets), with the expectation
> that an implementation wouldn't implement them if it only supports
> symmetric keying.

Shall we wait for Toke to express an opinion?

-- Juliusz

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