Re: Updated IID length text

Alexandre Petrescu <alexandru.petrescu@gmail.com> Thu, 19 January 2017 09:58 UTC

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From: Alexandre Petrescu <alexandru.petrescu@gmail.com>
X-Google-Original-From: Alexandre Petrescu <alexandre.petrescu@gmail.com>
Subject: Re: Updated IID length text
To: Lorenzo Colitti <lorenzo@google.com>
References: <148406593094.22166.2894840062954191477.idtracker@ietfa.amsl.com> <m2wpdzhncn.wl-randy@psg.com> <82245ef2-cd34-9bd6-c04e-f262e285f983@gmail.com> <m2d1frhjfn.wl-randy@psg.com> <18e6e13c-e605-48ff-4906-2d5531624d64@gmail.com> <CAKD1Yr1cvZ8Y3+bHeML=Xwqr+YgDspZGnZi=jqQj4qe2kMc4zw@mail.gmail.com> <m2lguffnco.wl-randy@psg.com> <CAKD1Yr1TrTiPRdyutobmb_77XJ7guNzLrg=H_p7qi4BfQ8V=GA@mail.gmail.com> <m2d1frfm6m.wl-randy@psg.com> <CAKD1Yr2Njjd8_Mr+6TRFF6C5pdcX4yFgpFVyEkykDuytu2B8mg@mail.gmail.com> <2A5073777007277764473D78@PSB> <4596c3d4-a337-f08e-7909-f14270b7085f@gmail.com> <CAN-Dau06R3iYRpYLADhvHox4C9qdsJCuxFsJapRhOQcWT4qk_g@mail.gmail.com> <CAO42Z2weZcoHiBzN94QAQ9WGhWR16PmMMFNg=5YLmr_dhPjjpA@mail.gmail.com> <fcc7f136-b5da-527e-b495-5a2d7f7a3ce8@gmail.com> <CAKD1Yr2Y8yY5=E3VUNuJqPsxeEJ2AMJM2ShKyQhQJRiO7fq3HA@mail.gmail.com> <c1407e78-b1cc-65b6-fe5a-63688e08feb8@gmail.com> <CAKD1Yr1aYMUXuxewWmr8+e_r7TuuP9VMVarxGuxtbsA1rwJF8Q@mail.gmail.com>
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Le 19/01/2017 à 10:49, Lorenzo Colitti a écrit :
> On Thu, Jan 19, 2017 at 6:26 PM, Alexandre Petrescu
> <alexandru.petrescu@gmail.com <mailto:alexandru.petrescu@gmail.com>> wrote:
>
>     If IIDs are required to be 64bit long (even if only in the 000-prefixed
>     space) then the network can not grow at the edges, at least not with
>     SLAAC.
>
>     The network can not grow at the edges with SLAAC because the operators
>     are already at this limit; they imagine no-one needs to grow beyond it.
>      They also imagine that a 2^64 is enough for an end user, w/o
>     understanding that /64 is but one subnet (because of SLAAC).
>
>
> There are lots of things that you can do with one /64. For example, you
> can bridge at layer 2 and connect as many devices as you want.

Yes there are, and there are not: bridging only scales that much (maybe 
1 or 2 PANs, but not to thousands of vehicles); bridging does not 
separate strongly enough between e.g. entertainment and safety.

Alex