nanog mailing list archives

Re: S.Korea broadband firm sues Netflix after traffic surge


From: Mark Tinka <mark@tinka.africa>
Date: Mon, 11 Oct 2021 09:58:14 +0200



On 10/10/21 23:57, Sabri Berisha wrote:

I have worked for ISPs. And I remember the late 90s. Bandwidth was $35/mbit
on average, at least for the outfit where I was. Consumers paid roughly $40
for their DSL connections, which at the time went up to 2Mbit depending
on the age of the copper and distance to the DSLAM. Consumer connections
were oversubscribed, on average, 1:35 to 1:50. B2B connections got a better
deal, 1:10 to 1:15.

It was simply not feasible to offer 1:1 bandwidth and still make a profit,
unless you're charging fees the average consumer cannot afford.

Especially considering that the average user doesn't even need or use that
much bandwidth. It's a recurring discussion. People demand more bandwidth
without considering whether or not they need it. End-users, business subs,
and host-owners at large enterprises where I worked. The last ones are the
funniest: entire racks using no more than 100mbit/s and hostowners are
demanding an upgrade from 10G to 25G bEcaUse LaTenCy.

The last consumer ISP I worked at had a very small subset of users that
really needed bandwidth: the "download dudes" who were 24/7 leeching news
servers, and the inevitable gamers that complained about the latency due
to the links being full as a result of said leechers. In that case, a
carefully implemented shaping of tcp/119 did the trick.

It's the conundrum of a shared resource. Like managing 1 lift (elevator, for the Americans :-)) that needs to move a building full of people between floors.

In the early days of the Internet, circuits were long, expensive and slow. Equipment cost a lot for what you could get out of it, and content was mostly centralized, making getting to it even more expensive, and hence, entrenching the current model.

However, in an era where content is making a push to get as close to the eyeballs as possible, kit getting cheaper and faster because of merchant silicon, and abundance of aggregated capacity at exchange points, can we leverage the shorter, faster links to change the model?

Mark.


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