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Re: [v6ops] I-D Action: draft-colitti-v6ops-host-addr-availability-01.txt

Lorenzo Colitti <lorenzo@google.com> Tue, 28 July 2015 12:15 UTC

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From: Lorenzo Colitti <lorenzo@google.com>
Date: Tue, 28 Jul 2015 21:14:37 +0900
Message-ID: <CAKD1Yr2CH==X3xEMfrumtbRrHf+t4dMSLnXpNpfFei+4JmuvTQ@mail.gmail.com>
To: Gert Doering <gert@space.net>
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Cc: IPv6 Operations <v6ops@ietf.org>
Subject: Re: [v6ops] I-D Action: draft-colitti-v6ops-host-addr-availability-01.txt
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On Tue, Jul 28, 2015 at 9:11 PM, Gert Doering <gert@space.net> wrote:

> > That said - you don't have this problem if you use SLAAC.
>
> If you use SLAAC your devices do not need to store 20 ND associations?
>

Your home CPE will likely have no problem at all storing 20 ND associations
per device.


> I understood Andrew that this was the reason why he thinks DHCPv6-PD
> scales better than getting 20 addresses by other means...


Oh, I see. Well, of course there's a tradeoff. Something does have to keep
state. You can store that state in routing entries, ND cache entries, /64
prefixes, or NAT66 state tables. I would prefer not to store it in NAT66
state tables.

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