Re: [v6ops] [GROW] Deaggregation by large organizations

[Gert Doering <[e-mail]>]

Hi,

On Thu, Oct 16, 2014 at 06:18:34PM -0700, Matthew Petach wrote:
> The probability of us figuring out how to scale
> the routing table to handle 40 billion prefixes
> is orders of magnitude more likely than solving
> the headaches associated with dynamic host
> renumbering.  That ship has done gone and
> sailed, hit the proverbial iceberg, and is gathering
> barnacles at the bottom of the ocean.

What I find scary in this statement is the underlying "one solution must
fit all users" mentality.

I can fully see and understand Owen's point that in an *enterprise*
environment, renumbering is truly hard, because you need to get lots of
other people that have no real interest to renumber stuff in their config
files - and yes, vendors of <whatever> that could handle DNS lookups and
combinations of "get prefix from DNS, attach <localbit>, put result into
usage" would be truly nice, but indeed, that should have been specced
15 years ago to be available now (maybe).

OTOH, there's the large mass of SOHO style users, where "dynamic host
renumbering" *really* is a non-issue.  I've gone there and tested it
in a homenet testbed with two IPv6 uplinks, so multi-homing and 
src-based routing thrown in - it works.  It needs polishing and some
IETF work here and there (SAS failover comes to mind, and labels-to-
prefixes) but it works better than "IPv4 with two providers" today,
for that particular class of users.

PI(-ish) "for everybody" is just not the right solution for non-technical-
savy users that would just not know that these funny numbers they received
from one of their providers are relevant, and lose them - thus, when changing
providers, would get new ones anyway.  And what do they need static addresses
for, anyway, as long as some sort of "register and lookup" mechanism exist
(mDNS, DNS, SIP, ...) to find the address when needed?

No, Owen's home does not qualify for a typical "SOHO" network, and most
likely, none of the other readers.  Ask yourself, what is needed to make
the network on your parent's home work (assuming those are not network
engineers).

Gert Doering
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