[address-policy-wg] Just say *NO* to PI space -- or how to make it lessdestructive

On Sunday 23 April 2006 17:42, Lea Roberts wrote:
> Roger -
>
> On Sun, 23 Apr 2006, Roger Jorgensen wrote:
> > On Mon, 24 Apr 2006, Nick Hilliard wrote:
> > > Gert Doering wrote:
> > > > The nice thing about Internet (as opposed to the telephone system) is
> > > > the fact that we have DNS - and thus no need to take our "numbers"
> > > > with us to be reachable.
> > >
> > > This is certainly the theory.  However, if you are a growing ISP,
> > > renumbering from PA space from another LIR to your own PI space or
> > > LIR/PA space can be - depending on how your customers are configured -
> > > pure pain.
> > >
> > > The portability associated with PI space is also important in one other
> > > view, in that it allows the holder to switch providers quickly and
> > > efficiently.  There's no tie-in of any form, and this is something
> > > which is extremely important to business.
> >
> > So what you are saying are we need a better way to configure,
> > reconfigure/change the connection to the end-users/customers? Thought
> > IPv6 was suppose to solve that issue.
>
> IPv6 has made it possible to renumber the network almost automatically.
> it seems possible to make that change without a "flag day" and an outage.
> however, the tools are mostly *NOT* there for similarly easy renumbering
> of router ACLs and firewall configs and DNS, so as the size of the network
> increases, large organizations are saying there is still a significant
> cost to renumbering (at this time...).  one can only hope that appropriate
> tools will be developed to make full renumbering reasonably painless.

Did anyone try that in a mission crytical 200+ site network? That is what I'm 
looking at. I'm not conviced yet that one would really like to do that. Is 
anyone brave enough to calculate the risks and costs for a network like that? 
(We solved it via the LIR route by the way.)

Marc
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