Hi Pascal

Yes, that works.

Thanks,
Stig

On Tue, Aug 9, 2022 at 3:30 AM Pascal Thubert (pthubert)
<[email protected]> wrote:
>
> Hello Stig
>
> The rationale behind a new protocol is, same as all 6lo work, power 
> efficiency in IoT space. Now, IoT is a precursor to moving more device to the 
> green side. So your point stands. Either we are specific that in the target 
> space there is no MLD at all, or we talk interactions between the two.
>
> IoT devices will typically sleep more than even cats do. They cannot stay 
> awake at all times just in case they are be polled for a report. They cannot 
> store much code either. The proposal is a simple extension to existing code, 
> since the change we're doing here was already done for classical IPv6 ND with 
> RFC 8505, 8928 and 8929. RFC 8929 typically isolates the non-broadcast IoT 
> edge from the broadcast backbone. Note that with RFC 8505, IoT devices do not 
> use SNMA so no need for MLD there either.
>
> Now for both ND and MLD, there will be a time of coexistence in the same 
> link. The documents for ND is already long awaited. My suggestion is that 
> that a future document covers both, and the current draft is for 
> non-broadcast IoT links only, no coexistence.
>
> Works?
>
>  Pascal
>
>
> > -----Original Message-----
> > From: Stig Venaas <[email protected]>
> > Sent: lundi 8 août 2022 19:21
> > To: [email protected]; [email protected]
> > Cc: Alvaro Retana <[email protected]>; [email protected]
> > Subject: draft-ietf-6lo-multicast-registration-08 replacing MLD
> >
> > Hi 6lo and draft authors
> >
> > I have some concerns about this draft replacing MLD for group
> > registration.
> >
> > Having 2 different protocols for the same thing can be problematic.
> > Hosts or routers may need to support both protocols. Is it clear which
> > one should be used in different environments? Is there a chance that
> > both may be used at the same time in a network? In particular, is there
> > a chance that a router may need to simultaneously support both protocols
> > on an L3 interface? In that case it must be considered how the two
> > protocols interoperate.
> >
> > Also, we have been pushing the use of SSM in the IETF for a very long
> > time, but this draft only supports ASM since only a group address is
> > provided.
> >
> > It would be good to have some more info on the need to replace MLD. I
> > understand there are concerns about packet loss, limited resources etc.
> >
> > Regards,
> > Stig

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