[address-policy-wg] IPv6 access to K-root

On 28-feb-05, at 17:49, Daniel Roesen wrote:

>>> You can also ask the other transit upstream to announce your /48 for
>>> you.

>> Mind you, I prefer to advertise myself, and, as discussed, am in the
>> lucky position that my transit ISPs are reasonable.

> Unfortunately this mainly leads to bad connectivity as half of the
> IPv6 world filters /48.

As long as your two transit ISPs accept the /48 from eachother, you'll 
have redundancy so this is not fatal.

And if we can write up a nice document that outlines how people can 
filter out "remote" /48s because having those in their routing tables 
has no added value, while allowing "close by" /48s that help optimize 
traffic flow, this could work out very well.

The good part is that if the uptake of this way of multihoming isn't 
excessive, there is no need to filter at all and we're all happy. But 
if it gets out of hand, people can filter without breaking 
connectivity. So this takes having to correctly guess the amount of 
multihoming in the future out of the equation.