nanog mailing list archives
Re: Scalability issues in the Internet routing system
From: Valdis.Kletnieks () vt edu
Date: Wed, 26 Oct 2005 12:12:44 -0400
On Wed, 26 Oct 2005 08:53:50 PDT, Alexei Roudnev said:
Anyway, as I said - it is only small, minor engineering question - how to forward having 2,000,000 routes. If internet will require such router - it will be crearted easily. Today we eed 160,000 routes - and it works (line cards,m software, etc - it DO WORK).
Forwarding packets is only half the story. Building a routing table is the other half. Route flaps. Even if you have an algorithm that's O(n), 2M routes will take 12.5 times as long to crunch as 160K. If your routing protocol is O(n**2) on number of routes, that's about 150 times as much. Such a router is probably buildable. I'm not at all convinced that it's "easy" to do so at a price point acceptable for most sites that currently have full routing tables.
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Current thread:
- Re: Scalability issues in the Internet routing system, (continued)
- Re: Scalability issues in the Internet routing system Alexei Roudnev (Oct 25)
- Re: Scalability issues in the Internet routing system Lincoln Dale (Oct 26)
- Re: Scalability issues in the Internet routing system Rubens Kuhl Jr. (Oct 26)
- Re: Scalability issues in the Internet routing system James (Oct 26)
- Re: Scalability issues in the Internet routing system Rubens Kuhl Jr. (Oct 26)
- Re: Scalability issues in the Internet routing system sthaug (Oct 26)
- Re: Scalability issues in the Internet routing system Elmar K. Bins (Oct 27)
- Re: Scalability issues in the Internet routing system sthaug (Oct 27)
- Re: Scalability issues in the Internet routing system JORDI PALET MARTINEZ (Oct 26)
- Re: Scalability issues in the Internet routing system Alexei Roudnev (Oct 26)
- Re: Scalability issues in the Internet routing system Valdis . Kletnieks (Oct 26)
- Re: Scalability issues in the Internet routing system Blaine Christian (Oct 26)
- Re: Scalability issues in the Internet routing system Andre Oppermann (Oct 26)
- Re: Scalability issues in the Internet routing system Christopher L. Morrow (Oct 26)
- Re: Scalability issues in the Internet routing system Blaine Christian (Oct 26)
- Re: Scalability issues in the Internet routing system Andre Oppermann (Oct 26)
- Re: Scalability issues in the Internet routing system Blaine Christian (Oct 26)
- Re: Scalability issues in the Internet routing system Andre Oppermann (Oct 27)
- Re: Scalability issues in the Internet routing system Blaine Christian (Oct 27)
- Re: Scalability issues in the Internet routing system Michael . Dillon (Oct 27)
- Re: Scalability issues in the Internet routing system william(at)elan.net (Oct 27)