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Re: [Roll] Transit vs. Target in P DAO

Michael Richardson <mcr@sandelman.ca> Tue, 22 September 2020 15:28 UTC

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From: Michael Richardson <mcr@sandelman.ca>
To: Routing Over Low power and Lossy networks <roll@ietf.org>
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Date: Tue, 22 Sep 2020 11:28:14 -0400
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Subject: Re: [Roll] Transit vs. Target in P DAO
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Pascal Thubert \(pthubert\) <pthubert=40cisco.com@dmarc.ietf.org> wrote:
    > Proposal B)

    > Maybe we want to signal that only certain DetNet Flows should be placed
    > in the Track. In that case, The RTO is not sufficient and we'd need the
    > 6tuple. If we take that path, we'd need to create a new Flow option
    > that is a Flow descriptor, in which case we'd get

This seems to pull in requirements that maybe are not well understood by
everyone.
It sounds like it is a more general solution which can be reduced somehow to
proposal (A)?

    > - one or more Flow Options to indicate which flows  are encapsulated in the Track
    > - Exactly one RTO  (as we currently do) OR Exactly one TIO (as in Proposal A) to indicate the tunnel egress
    > - then one VIO or one or more SRVIOs (as we currently do)

    > What do you guys think?

I don't know.

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]   Michael Richardson, Sandelman Software Works        |    IoT architect   [
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