nanog mailing list archives
Re: Optical Crossconnects and IP
From: Michael Shields <shields () msrl com>
Date: 15 May 2000 02:08:34 +0000
In article <200005141743.e4EHheW09551 () sss1 gwi net>, Fletcher E Kittredge <fkittred () sss1 gwi net> wrote:
http://smg.ulb.ac.be/Preprints/Fortz99_29.html mentions it was in Infocon 2000... And oh, yes, most definitely worth the read.
A very interesting paper, but it does have a key assumption that may limit its applicability: "The above definition of the general routing problem is equivalent to the one used e.g. in Awduche et al. Its most controversial feature is the assumption that we have an estimate of a demand matrix." The approach laid out by Fortz and Thorup is very pleasant in its ability to show that a simple weight-based model can come close to optimal traffic engineering. But without any way to quantify how accurate our estimate of the demand matrix is, we cannot know whether the projected weights are actually even close to optimal. And considering the elasticity of demand, I would argue that an accurate demand matrix cannot be constructed for most Internet backbones given currently available tools and understanding. I would be happy to be wrong about this. -- Shields.
Current thread:
- Re: Optical Crossconnects and IP, (continued)
- Re: Optical Crossconnects and IP Alex Bligh (May 11)
- Re: Optical Crossconnects and IP Tony Li (May 11)
- Re: Optical Crossconnects and IP Vadim Antonov (May 11)
- Re: Optical Crossconnects and IP Tony Li (May 11)
- Re: Optical Crossconnects and IP Bora Akyol (May 11)
- Re: Optical Crossconnects and IP Tony Li (May 11)
- Re: Optical Crossconnects and IP Bora Akyol (May 11)
- Re: Optical Crossconnects and IP Tony Li (May 11)
- Re: Optical Crossconnects and IP Fletcher E Kittredge (May 14)
- Re: Optical Crossconnects and IP Vijay Gill (May 14)
- Re: Optical Crossconnects and IP Michael Shields (May 14)
- Re: Optical Crossconnects and IP Vijay Gill (May 14)
- Re: Optical Crossconnects and IP Tony Li (May 11)
- Re: Optical Crossconnects and IP Jerry Scharf (May 11)
- Re: Optical Crossconnects and IP Vijay Gill (May 14)
- Re: Optical Crossconnects and IP Vijay Gill (May 14)