Re: [GLOBAL-V6] Comments on AP Consensus

[Dave Wilson <dave.wilson@heanet.ie>]

> I'm not sure whether there is an existing document, but I have seen
> discussions to this - "just" use multiple /48s, which IPv6 stacks and
> applications should be prepared for.
> 
> Similar to what people already do in IPv4 world, except that "many IPs
> on one single machine for one single service" is something that is
> natural for IPv6 and unusual for IPv4.

Even if it works, I don't see how it's possible to implement a proper 
routing policy using this method. e.g.: if HEAnet has a routes to JANET 
via (a) high speed direct connection, (b) a high-speed network, and (c) 
an ordinary commodity internet connection, how does the client PC know 
which of the three source address to use?

If we simply take a /48 from one of the "upstreams" and advertise that 
to all our "upstreams", why should they accept our advertisements? 
Strictly speaking, they shouldn't. (although I dare say if cnn.com did 
so, lots of ISPs would be under pressure to stop filtering when CNN's 
primary upstream goes down).

I'm sorry if I'm rocking the boat, and if urgency is that great for a 
global policy then I guess there's not much can be done. I just don't 
think the proposal fixes the problems raised at RIPE. (In particular I 
feel that deciding to give any LIR an allocation carries an implicit 
belief that HD-ratio is not a good measurement).

Dave

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