netdev - Re: [PATCH wpan-next v2 0/3] IEEE 802.15.4: Add coordinator interfaces

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Message-ID: <CAK-6q+iRAjEPLQqH-_YSxNnobd7o=NLaF-4XB+zvNTXpWgpb8A@mail.gmail.com>
Date:   Mon, 31 Oct 2022 18:07:05 -0400
From:   Alexander Aring <aahringo@...hat.com>
To:     Miquel Raynal <miquel.raynal@...tlin.com>
Cc:     Alexander Aring <alex.aring@...il.com>,
        Stefan Schmidt <stefan@...enfreihafen.org>,
        linux-wpan@...r.kernel.org,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Eric Dumazet <edumazet@...gle.com>, netdev@...r.kernel.org,
        David Girault <david.girault@...vo.com>,
        Romuald Despres <romuald.despres@...vo.com>,
        Frederic Blain <frederic.blain@...vo.com>,
        Nicolas Schodet <nico@...fr.eu.org>,
        Guilhem Imberton <guilhem.imberton@...vo.com>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>
Subject: Re: [PATCH wpan-next v2 0/3] IEEE 802.15.4: Add coordinator interfaces

Hi,

On Sun, Oct 30, 2022 at 10:20 PM Alexander Aring <aahringo@...hat.com> wrote:
>
> Hi,
>
> On Wed, Oct 26, 2022 at 5:35 AM Miquel Raynal <miquel.raynal@...tlin.com> wrote:
> >
> > Hello,
> > These three patches allow the creation of coordinator interfaces, which
> > were already defined without being usable. The idea behind is to use
> > them advertizing PANs through the beaconing feature.
> >
>
> I still don't know how exactly those "leaves" and "non-leaves" are
> acting here regarding the coordinator interfaces. If this is just a
> bit here to set in the interface I am fine with it. But yea,
> "relaying" feature is a project on its own, as we said previously.
>
> Another mail I was asking myself what a node interface is then,
> currently it is a mesh interface with none of those 802.15.4 PAN
> management functionality? Or can it act also as a "leave"
> coordinator... I am not sure about that.
>
> However I think we can think about something scheduled later as we can
> still decide later if we really want that "node" can do that.
> Regarding to 6LoWPAN I think the current type what "node" interface is
> as a just a node in a mesh is required, it might depends on if you
> want routing on IP or "relaying" on MAC (mesh-over vs mesh-under), but

*route-over

> I never saw mesh-under in 6LoWPAN.
>

we will see how that works, because you can actually run a 6lowpan
interface on the new coordinator type.

- Alex