nanog mailing list archives

Re: akamai yesterday - what in the world was that


From: Jared Mauch <jared () puck nether net>
Date: Thu, 23 Jan 2020 13:50:40 -0500



On Jan 23, 2020, at 1:25 PM, Warren Kumari <warren () kumari net> wrote:

On Thu, Jan 23, 2020 at 12:45 PM Hugo Slabbert <hugo () slabnet com> wrote:

This just follows the same rules as networks have always seemed to; If you build it, they will come, and you'll 
have to build more. :)

https://en.m.wikipedia.org/wiki/Induced_demand


Yup, there is also (in networking at least) suppressed demand -- I'm
sure we've all seen capacity planning discussions along the lines of:
"My 1GE is running at 95% capacity - I'm replacing it with a 10GE and
it will be around 10% used... wait?! What?! It's now at 7Gbps?! How
the hell did that happen?!" scenarios. They usedto be funny, but these
days I just find it depressing...

I find it both happy and disturbing.  I remember the first 2.4/2.5g links I turned up as well as the first 10g and 
(eventually) the first 100g links.

I was leaving the house earlier this week thinking about how it used to be Mbps of traffic that was a lot and now it’s 
Gbps and how that’s shifted to Tbps.

While it makes me feel old, it’s also something that I marvel about periodically.

- jared

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