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Re: [babel] Unicast Hellos -- conclusions so far

Juliusz Chroboczek <jch@irif.fr> Sat, 08 April 2017 14:14 UTC

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Date: Sat, 08 Apr 2017 16:14:05 +0200
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From: Juliusz Chroboczek <jch@irif.fr>
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Subject: Re: [babel] Unicast Hellos -- conclusions so far
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>> - perform 2/3 for multicast hellos;
>> - perform 2/3 for unicast hellos;
>> - assume link is up if either instance of 2/3 says it's up.

> Appendix A2 is for Cost Computation, right? 
> Link Up depends on IHU.
> OK, link from Hello sender to Hello receiver is assumed up.

> Or is this "Link Up" equivalent to "it has recently heard a Hello" 
> in rfc6126bis section-2.1? I couldn't find a precise definition 
> that quickly.

Yes, that's what I meant.

> What means recently?

In the reference implementation -- within three times the interval
advertised by the most recent Hello.

-- Juliusz

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