Leif Johansson wrote:
> Yet another old argument. I remember several opposing voices 
> from the SL 
> debate.

Appearing to be primarily from service providers. By my count most of the no
voters were from edge focused people. 

> I am running a large edge network. I have both PI and PA v4 and yet I 
> don't see
> the need for site-locals. 

So is all of your space is globally routed without any filtering or
exclusion from routing protocols? Not everyone is in such a lucky position
to have all of their network globally exposed.

> I think it is time to drop the "silent 
> majority" argument.
> 
> What edge-network do you run?

Currently an insignificant one, but in past lives I have been involved in
both large scale edge and core network management. The point is not what you
or I think about the need for local addressing, it is about what the manager
who can't get PI space is going to do. Insufficient resources to justify PI
space does not invalidate their need for internal network stability. 

In the absence of NAT, allowing the ISPs to renumber customer networks at a
whim will ensure 'address-portability' becomes a hot button. We can help
mitigate what would become random PI by providing local stability. We can go
further by providing a 'less-than-perfect' PI. PI will solve most of the
requirements for local space, but by definition can't deal with the
requirement to avoid accidentally becoming part of a routed aggregate.

Tony




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