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Re: [Roll] Retrying DCO/DAO, retry parameters

Alvaro Retana <aretana.ietf@gmail.com> Thu, 04 July 2019 10:44 UTC

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From: Alvaro Retana <aretana.ietf@gmail.com>
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To: Routing Over Low power and Lossy networks <roll@ietf.org>, "Pascal Thubert (pthubert)" <pthubert@cisco.com>
Cc: Mirja Kühlewind <ietf@kuehlewind.net>
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Subject: Re: [Roll] Retrying DCO/DAO, retry parameters
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On June 27, 2019 at 1:54:11 AM, Pascal Thubert (pthubert) (
pthubert@cisco.com) wrote:

Hi!

RPL is designed to operate in very different environment, and some LLNs can
be very slow, very lossy or even both. This is why RFC 6550 refrains from
being too specific.

Maybe it is good enough to add text indicating that the values used for DCO
are expected to be similar/consistent with those used in DAO?

I agree with Pascal.  In fact, the diversity of environments not only makes
it very hard to be too specific, but it is one of the reasons the WG has
produced Applicability Statements for them: not all deployments are the
same.

Thanks!

Alvaro.

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