IoT - The end of the internet

Thu Aug 11 06:31:17 UTC 2022

On Wed, Aug 10, 2022 at 10:38 PM William Herrin <bill at herrin.us> wrote:
> On Wed, Aug 10, 2022 at 3:29 PM Christopher Wolff
> <chris at vergeinternet.com> wrote:
> > Will tomorrow’s applications require a re-thinking of “The Internet” and protocols that are low latency compliant?
>
> No, because speed of light constraints will continue to cause us to
> implement the latency-critical components close to the user. It's
> basic physics man.

Also, because error IS the character of an operational network. All
successful network protocols deal reasonably with unpredictable error.
Error correction begets jitter which is a form of latency. It's a
basic tenet of any network-using device no matter what protocol you
design. Hence no such thing as a "low latency compliant" network or
protocol. You can make a stochastic statement about the probability
that information arrives within a timeframe but you absolutely cannot
guarantee it.

What CAN exist is protocols which don't do "head of line blocking"
during error correction. That's where data successfully received isn't
delivered until after the corrected data preceding it arrives. But we
already have those. Most things UDP went UDP instead of TCP to avoid
TCP's head of line blocking.

Regards,
Bill Herrin

-- 
For hire. https://bill.herrin.us/resume/