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Re: [v6ops] PI [ULA draft revision #2 Regarding isolated networks]

Brian E Carpenter <brian.e.carpenter@gmail.com> Fri, 30 May 2014 20:26 UTC

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Date: Sat, 31 May 2014 08:26:11 +1200
From: Brian E Carpenter <brian.e.carpenter@gmail.com>
Organization: University of Auckland
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To: Owen DeLong <owen@delong.com>
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Cc: V6 Ops List <v6ops@ietf.org>, Tore Anderson <tore@fud.no>
Subject: Re: [v6ops] PI [ULA draft revision #2 Regarding isolated networks]
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On 31/05/2014 02:44, Owen DeLong wrote:
...
>> And I think that every SME who has lost business with the unreliability
>> of their ISP will want multi-homing and will think that with IPv6 and PI
>> the constraints have gone, and the number of such SMEs can only approach
>> 10M over time.
> 
> All the more reason this issue needs to get addressed instead of ignored.

We agree on that.

> 
>> So, Brian is spot on, and just as the IETF did little about IPv4
>> addresses running out until the event loomed large, so I expect history
>> to repeat itself with the growth of PI in IPv6.
> 
> He’s somewhat right about the problem. He’s absolutely wrong in believing that
> the current limitations are a solution.

As far as I can parse that last sentence, I'm not sure I said that.

It isn't beyond the bounds of physics to believe that a 10 million
entry 128-bit wide FIB would be possible. (After all, we believe that
fully portable 10-digit phone numbers are possible.) But I'd rather
see a more elegant solution. Whether the RRG has found it yet is
another discussion.

   Brian

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