nanog mailing list archives
RE: Sensible geographical addressing [Was: 16 vs 32 bit ASNs yadda, yadda]
From: "Scott Morris" <swm () emanon com>
Date: Tue, 30 Nov 2004 10:29:16 -0500
In the interconnected world, geography is very much irrelevant to best path routing. It's all about speeds and feeds where a local-access T-1 is obviously not preferable to a cross-country OC-3. Sounds nice on paper, but isn't really where things are at these days. Now on the other hand if bandwidth were unlimited and we all had great super-duper links between every ISP regardless of tier, THEN geographical routing would make sense. Whether you have 16 or more geographical locations doesn't necessarily equate to geographic routing. It's still longest prefix match which may be interrupted by misconfigured filters, or other circumstances. This is what happens when we try to borrow ideas from the 40-50-year-old telecom world and how basic call-routing worked in a TDM environment. Scott -----Original Message----- From: owner-nanog () merit edu [mailto:owner-nanog () merit edu] On Behalf Of Michael.Dillon () radianz com Sent: Tuesday, November 30, 2004 9:28 AM To: nanog () merit edu Subject: Sensible geographical addressing [Was: 16 vs 32 bit ASNs yadda, yadda]
Anything that takes geography into the routing is plain and simple broken.
Then why do major American providers require peers to be in 16 or more geographic locations? Why do people aggregate addresses geographically in their networks? It can't all be broken.
Current thread:
- Re: 16 vs 32 bit ASNs [Re: BBC does IPv6 ;), (continued)
- Message not available
- Re: 16 vs 32 bit ASNs [Re: BBC does IPv6 ;) Owen DeLong (Nov 30)
- Re: 16 vs 32 bit ASNs [Re: BBC does IPv6 ;) Elmar K. Bins (Nov 30)
- Re: 16 vs 32 bit ASNs [Re: BBC does IPv6 ;) (Was: large multi-site enterprises and PI] Michael . Dillon (Nov 30)
- Re: 16 vs 32 bit ASNs [Re: BBC does IPv6 ;) (Was: large multi-site enterprises and PI] Andre Oppermann (Nov 30)
- Sensible geographical addressing [Was: 16 vs 32 bit ASNs yadda, yadda] Michael . Dillon (Nov 30)
- Re: Sensible geographical addressing David Barak (Nov 30)
- Re: Sensible geographical addressing Peter Corlett (Nov 30)
- Re: Sensible geographical addressing David Barak (Nov 30)
- RE: Sensible geographical addressing Scott Morris (Nov 30)
- Re: Sensible geographical addressing Bill Woodcock (Nov 30)
- RE: Sensible geographical addressing [Was: 16 vs 32 bit ASNs yadda, yadda] Scott Morris (Nov 30)
- Re: Sensible geographical addressing [Was: 16 vs 32 bit ASNs yadda, yadda] Iljitsch van Beijnum (Nov 30)
- RE: Sensible geographical addressing [Was: 16 vs 32 bit ASNs yadda, yadda] Scott Morris (Nov 30)
- Re: 16 vs 32 bit ASNs [Re: BBC does IPv6 ;) (Was: large multi-site enterprises and PI] Christopher L. Morrow (Nov 29)
- Re: BBC does IPv6 ;) (Was: large multi-site enterprises and PI Owen DeLong (Nov 29)
- Re: BBC does IPv6 ;) (Was: large multi-site enterprises and PI Owen DeLong (Nov 28)
- Re: BBC does IPv6 ;) (Was: large multi-site enterprises and PI Christopher L. Morrow (Nov 28)
- Re: BBC does IPv6 ;) (Was: large multi-site enterprises and PI Owen DeLong (Nov 28)
- Re: size of the routing table is a big deal, especially in IPv6 Iljitsch van Beijnum (Nov 29)
- Re: size of the routing table is a big deal, especially in IPv6 Daniel Senie (Nov 29)
- Re: size of the routing table is a big deal, especially in IPv6 Tony Li (Nov 29)