[ipv6-wg at ripe.net] Re: [lir-wg] IXP networks routing
Måns Nilsson mansaxel at sunet.se
Wed Mar 5 13:29:22 CET 2003
--On Tuesday, March 04, 2003 16:14:57 +0100 Poul-Henning Kamp <phk at phk.freebsd.dk> wrote: > I'm mainly talking about the lack of a feasible way for end-customers > to get working multi-homing. This ties directly into the "PI" space > question. Multihoming today depends on the possession of an AS number. I see no alternative to that prerequisite. Size of current v4 routing table: roughly 120000 entries Number of ASen visible : roughly 15000 So, if we simply give every AS number holder currently present in the v4 table a /32 or so, with STRICT instructions to forget getting another prefix until half that prefix is pingable, we attain several things: * This makes the PI/PA distinction moot, or rather, we have PI only. Perhaps the mootness is temporary, but I hope not. It might be replaced with AA -- AS Allocated, ie "these addresses belong to AS1653, and cannot be placed under any other AS". * The "v6 for services" problem will disappear. End of this discussion. * The routing table will shrink to 12.5% of its present size. * We will have a minor chunk of v6 space used, and all present users of v4 will be able to migrate without lack of address space. * If the number of ASen (with one /32 per AS) visible in the v6 table increase 100% compared to todays v4 figures, the table will still be only 25% of today. * Everybody will hunt me with both sharp and blunt objects for being a filthy pragmatic person with blasphemous opinions. Now, please tell me why this does not work. Purity reasons will have no effect, for I am too shortsighted. -- Måns Nilsson Systems Specialist +46 70 681 7204 KTHNOC MN1334-RIPE We're sysadmins. To us, data is a protocol-overhead. -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 187 bytes Desc: not available URL: <https://www.ripe.net/ripe/mail/archives/lir-wg/attachments/20030305/a235b1e8/attachment.sig>
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