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Re: [v6ops] RFC7849 must not recommend 64share, and must not be recommended itself to 3GPP

Erik Kline <ek@google.com> Fri, 03 March 2017 13:44 UTC

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From: Erik Kline <ek@google.com>
Date: Fri, 03 Mar 2017 22:43:56 +0900
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To: Alexandre Petrescu <alexandre.petrescu@gmail.com>
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Subject: Re: [v6ops] RFC7849 must not recommend 64share, and must not be recommended itself to 3GPP
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>
>
> Because Prefix Delegation capabilities may not be available in some
>> attached networks, L_REC#1 is strongly recommended to accommodate
>> early deployments. =====
>>
>
> This is wrong.  We should _never_ recommend somehting we know it does
> not scale.  64share does not scale, there is a 'multi-link subnets' RFC
> and there is operational experience showing so.
>

False.

We wrote IPv6 tethering in Android N (MR1), it uses 64share, and it pretty
much works just fine.

It is tricky if you want to further delegate from there, but works A-OK for
its stated intended purpose.

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