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

"Pascal Thubert (pthubert)" <pthubert@cisco.com> Sat, 26 September 2020 08:04 UTC

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From: "Pascal Thubert (pthubert)" <pthubert@cisco.com>
To: Routing Over Low power and Lossy networks <roll@ietf.org>
Thread-Topic: [Roll] Transit vs. Target in P DAO
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Date: Sat, 26 Sep 2020 08:04:23 +0000
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Subject: Re: [Roll] Transit vs. Target in P DAO
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Hello Michael 

I’m not sure we should mix reactive P2P and SDN. In my personal rainbow they are the red and the violet. I know extremes sometimes meet but we’re already struggling to get the signaling simple and yet powerful enough.

So yes, keeping in mind what you’re saying, in case we can prepare the format for different uses as well, but no, not an objective in the control plane.

Maybe your thoughts are following the same path as ours at RAW. Separate 1) the global control plane knowledge that the Big Root has and that enables to build this local DODAG proactively and in the middle of many others, and 2) the DODAG-local knowledge that the forwarding plane has and that enables to reactively and quickly respond to the changes in radio propagation.

If that’s what lurks in the bottom of your mind then we are on the very same page!

Take care,

Pascal

> Le 26 sept. 2020 à 00:47, Michael Richardson <mcr+ietf@sandelman.ca> a écrit :
> 
> 
> Rahul Jadhav <rahul.ietf@gmail.com> wrote:
>> But, wouldn't this mandate that only Global DODAG roots can initiate a
>> P-DAO request?
>> Isn't it currently possible for a local DODAG (with local
>> RPLInstanceID) root to initiate a P-DAO request? If yes, then the DAO
>> base object cannot be used as mentioned by you.
> 
> And what about p2p-rpl (RFC6997)?  Is there a place for P-DAO there?
> 
> Or maybe I should ask this differently:  doesn't P-DAO allow for cross-DODAG
> routing, as arranged by the root?  A sort of PCE?  Does this essentially
> eclipse the utility of p2p RPL?
> 
> Does this local/global issue affect this?
> 
> --
> Michael Richardson <mcr+IETF@sandelman.ca>   . o O ( IPv6 IøT consulting )
>           Sandelman Software Works Inc, Ottawa and Worldwide
> 
> 
> 
> 
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[Roll] Transit vs. Target in P DAO Pascal Thubert (pthubert)
Re: [Roll] Transit vs. Target in P DAO Michael Richardson
Re: [Roll] Transit vs. Target in P DAO Pascal Thubert (pthubert)
Re: [Roll] Transit vs. Target in P DAO Rahul Jadhav
Re: [Roll] Transit vs. Target in P DAO Pascal Thubert (pthubert)
Re: [Roll] Transit vs. Target in P DAO Rahul Jadhav
Re: [Roll] Transit vs. Target in P DAO Pascal Thubert (pthubert)
Re: [Roll] Transit vs. Target in P DAO Pascal Thubert (pthubert)
Re: [Roll] Transit vs. Target in P DAO Rahul Jadhav
Re: [Roll] Transit vs. Target in P DAO Pascal Thubert (pthubert)
Re: [Roll] Transit vs. Target in P DAO Michael Richardson
Re: [Roll] Transit vs. Target in P DAO Pascal Thubert (pthubert)
Re: [Roll] Transit vs. Target in P DAO Pascal Thubert (pthubert)