North American Network Operators Group

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Re: BitTorrent swarms have a deadly bite on broadband nets

  • From: Mikael Abrahamsson
  • Date: Tue Oct 23 02:25:14 2007

On Tue, 23 Oct 2007, Sean Donelan wrote:

Ok, maybe the greedy commercial folks screwed up and deserve what they got; but why are the nobel non-profit universities having the same problems?

Because if you look at a residential population with ADSL2+ and 10/10 or 100/100 respectively, the upload/download ratios are reversed, from 1:2 with ADSL2+ (double the amount of download to upload), to 2:1 (double the amount of upload to download). In my experience, the amount of download is approximately the same in both cases, which gives that the upload factor changes 1:4 with the access media symmetry.

Otoh, long term savings (several years) on operational costs still make residential ethernet a better deal since experience is that "it just works" as opposed to ADSL2+ where you have a very disturbing signal environment where customers are impacting each other which leads to a lot of customer calls regarding poor quality and varying speeds/bit errors over time.

Mikael Abrahamsson    email: [email protected]