Re: Interested in wireless ?

Alexandre Petrescu <alexandre.petrescu@gmail.com> Tue, 02 June 2020 11:53 UTC

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Subject: Re: Interested in wireless ?
To: "Pascal Thubert (pthubert)" <pthubert@cisco.com>, "ipv6@ietf.org" <ipv6@ietf.org>
References: <A26FA9F8-72B8-4728-B978-6DDD271EC64D@cisco.com> <c0b383ce-9a86-dbe1-30a3-f96e7434c2a6@gmail.com> <ea3dd120-bdad-3ca3-2983-9605324f6e8e@gmail.com> <MN2PR11MB356569D4604334EA732FD796D88B0@MN2PR11MB3565.namprd11.prod.outlook.com>
From: Alexandre Petrescu <alexandre.petrescu@gmail.com>
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Date: Tue, 2 Jun 2020 13:53:45 +0200
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Hello Pascal,

Le 02/06/2020 à 09:55, Pascal Thubert (pthubert) a écrit :
> Hello Alex
> 
>> -----Original Message-----
>> From: ipv6 <ipv6-bounces@ietf.org> On Behalf Of Alexandre Petrescu
>> Sent: lundi 1 juin 2020 21:19
>> To: ipv6@ietf.org
>> Subject: Re: Interested in wireless ?
>>
>> draft says:
>>>     To protect their bandwidth, some
>>>     networks throttle ND-related broadcasts, which reduces the capability
>>>     for the ND protocol to operate as expected.
>>
>> I suspect you mean ND-related multicasts, and not ND-related broadcasts.
> 
> I meant ND-related MAC-layer broadcasts. 

I think there are no MAC-layer broadcasts used by ND.

A MAC-layer broadcast is one that sends to ff:ff:ff:ff:ff.  That does 
not exist for ND.

Or maybe one means a PHY-layer broadcast?

Broadcast: casting broadly a message, like a fisherman casting a net, 
like in a TV broadcast.

Alex

L3 multicast turned in L2 broadcast.
> But I see that the paragraph needs clarification, will do it for the next publication.
> 
> 
>>
>> Also, I guess that need to protect (maintain availability) bandwidth is different
>> when more and more bandwidth is offered by a PHY/MAC in a terahertz range.
>> Maybe these networks will stop throttling(?)
> 
> I do not have a crystal ball for that. Look at Ethernet, now in the 100s of Gigs in the DC.
> With the overlays and distributed cloud, the desire to eliminate broadcasts is more intense than ever.
> 
> Keep safe,
> 
> Pascal
> 
>> Alex
>>
>> Le 01/06/2020 à 21:12, Alexandre Petrescu a écrit :
>>> draft says:
>>>>     The routers send RAs with a SLLAO at a regular period.  The period
>>>>     can be indicated in the RA-Interval Option [RFC6275].  If
>>>> available,
>>>>     the message can be transported in a compressed form in a beacon,
>>>>     e.g., in OCB Basic Safety Messages (BSM) that are nominally sent
>>>>     every 100ms.
>>>
>>> I suggest to give CAM as an example as well, not just BSM.
>>>
>>> It might be that on some continent CAM is more important than BSM.
>>>
>>> It might be, that in an ideal world where all use Internet, there is
>>> just one CAMBSM message, and maybe we get to that if we put it on IP.
>>>
>>> But until then, citing just BSM is not good enough.
>>>
>>> Alex
>>>
>>>
>>> Le 30/05/2020 à 13:46, Pascal Thubert (pthubert) a écrit :
>>>> Dear all
>>>>
>>>> Since there’s so much energy on the list these days, could we
>>>> consider the adoption of
>>>> https://tools.ietf.org/html/draft-thubert-6man-ipv6-over-wireless-05
>>>> ?
>>>>
>>>> I got only positive feedback, there’s no politics, there no label,
>>>> it’s all about IPv6 models for wireless. This may appear useful in a
>>>> world where the vast majority of devices are connected that way.
>>>>
>>>> Keep safe,
>>>>
>>>> Pascal
>>>>
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