[Cake] Re: [Starlink] [LibreQoS] Re: Keynote: QoE/QoS - Bandwidth Is A Lie! at WISPAPALOOZA 2025 (October 16)

[Jim Forster <jim@connectivitycap.com>]

Exactly so.

Consumer expectations and service provider marketing may be influenced by memories of experience when transmission delay did matter.  At one time I was very happy with my home ISDN connection, and even shared it with my neighbor.  At about 128kbs, it was three orders of magnitude slower than my home fiber link.  I’ve not run the numbers but I’m pretty sure transimission speed mattered for video, even for crummy quality video,  So then when I learned a bit about digital video, and cable’s 64 QAM 27mbps channels, I got excited and thought, “wow, they could deliver 1mbps service!  And wouldn’t it be cool to have 1M home online at 10x the speed of ISDN?”.  It was cool!  And two more orders of magnitude later, here we are.

  — Jim

> On Nov 7, 2025, at 12:52 PM, J Pan <Pan@uvic.ca> wrote:
> 
> latency is based on round-trip time, and one-way delay includes
> transmission delay, propagation delay, queuing delay and processing
> delay. bandwidth does affect transmission delay (or serialization
> delay), propagation delay is determined by the link length and the
> "travel" speed of the signal, queuing delay is the hardest part and
> affected by the buffer bloat a lot, and processing delay is another
> variable. of course, transmission delay takes less and less portion of
> the end-to-end delay now due to higher and higher "speed" links
> 
> consumers may mistaken the speed of the link (the "width" of their
> pipe) as how fast their internet is (the "length" of the pipe), due to
> the poor terminology we have been using ;-)