Hi, On Sat, May 04, 2002 at 08:55:17PM +0200, Sebastian Willing wrote:
Gert Doering wrote:
Why couldn't the RIPE (or better, IANA) claim a /32 or something like this to be used only for PI /48 networks? This way, we could filter out everything more-specific then /48 in this network and everything more-specific then /?? everywhere else.
What would be the benefit of this?
The drawbacks are:
- it creates instant legacy objects (those will be around forever - there is no way they can disappear)
- if someone filters out /48s, those networks are instantly dead. When using /48s out of aggregateable space, if someone filters them, the networks can still be reached via the aggregate block.
You (as an upstream) could announce the whole claimed block as a kind of gateway-of-last-resort - route to your downstreams.
This is why people use /48s out of PA blocks. Because it's automatic, and the block-route is already pointing into the right direction and does not have to be generate by every single "upstream" ISP out there.
The only "advantage" of PI is that it's "independent" and you can carry it around when changing ISPs. But everbody else has to pay for that.
PI is *bad*.
Okay, change it's name or reserve it for organasations like RIPE, DeNic, Switch, Nic.at, DeCix and so on.
No. None of them are more special than everybody else. (For the IXes, the *peering mesh* LAN is. The services network is not) Gert Doering -- NetMaster -- Total number of prefixes smaller than registry allocations: 45077 (47584) SpaceNet AG Mail: netmaster@Space.Net Joseph-Dollinger-Bogen 14 Tel : +49-89-32356-0 80807 Muenchen Fax : +49-89-32356-299