Re: [NNagain] FCC NOI due dec 1 on broadband speed standards

[rjmcmahon <rjmcmahon@rjmcmahon.com>]

Also, don't forget to measure with working-loads too

--working-load[=up|down|bidir][,n]
request a concurrent working load, currently TCP stream(s), defaults to 
full duplex (or bidir) unless the up or down option is provided. The 
number of TCP streams defaults to 1 and can be changed via the n value, 
e.g. --working-load=down,4 will use four TCP streams from server to the 
client as the working load. The IP ToS will be BE (0x0) for working load 
traffic.
--working-load-cca
Set the congestion control algorithm to be used for TCP working loads

Maybe keep a few rasberry pi's in one's backback with iperf 2? That way 
you're always prepared for latency emergencies. The Rpi5 has a TCXO for 
it's clock.

Bob
> It's frustrating to me that even experts here don't measure latency as
> a first priority. The tooling has been available for years to do this.
> And it's only getting better and more feature rich, e.g. bounce-back.
> 
> --bounceback[=n]
> run a TCP bounceback or rps test with optional number writes in a
> burst per value of n. The default is ten writes every period and the
> default period is one second (Note: set size with
> --bounceback-request). See NOTES on clock unsynchronized detections.
> --bounceback-hold n
> request the server to insert a delay of n milliseconds between its
> read and write (default is no delay)
> --bounceback-no-quickack
> request the server not set the TCP_QUICKACK socket option (disabling
> TCP ACK delays) during a bounceback test (see NOTES)
> --bounceback-period[=n]
> request the client schedule its send(s) every n seconds (default is
> one second, use zero value for immediate or continuous back to back)
> --bounceback-request n
> set the bounceback request size in units bytes. Default value is 100 
> bytes.
> --bounceback-reply n
> set the bounceback reply size in units bytes. This supports asymmetric
> message sizes between the request and the reply. Default value is
> zero, which uses the value of --bounceback-request.
> --bounceback-txdelay n
> request the client to delay n seconds between the start of the working
> load and the bounceback traffic (default is no delay)
> 
> https://iperf2.sourceforge.io/iperf-manpage.html
> 
> Bob
>> If video conferencing worked well enough, they would not have to all
>> get together in one place and would instead hold IETF meetings online
>> ...?
>> 
>> Did anyone measure latency?   Does anyone measure throughput of
>> "useful" traffic - e.g., excluding video/audio data that didn't arrive
>> in time to be actually used on the screen or speaker?
>> 
>> Jack Haverty
>> 
>> On 11/14/23 09:25, Vint Cerf via Nnagain wrote:
>> 
>>> if they had not been all together they would have been consuming
>>> tons of video capacity doing video conference calls....
>>> 
>>> :-))
>>> v
>>> 
>>> On Tue, Nov 14, 2023 at 10:46 AM Livingood, Jason via Nnagain
>>> <nnagain@lists.bufferbloat.net> wrote:
>>> 
>>>> On the subject of how much bandwidth does one household need,
>>>> here's a fun stat for you.
>>>> 
>>>> At the IETF’s 118th meeting [1] last week (Nov 4 – 10, 2023),
>>>> there were over 1,000 engineers in attendance. At peak there were
>>>> 870 devices connected to the WiFi network. Peak bandwidth usage:
>>>> 
>>>> * Downstream peak ~750 Mbps
>>>> * Upstream ~250 Mbps
>>>> 
>>>> From my pre-meeting Twitter poll
>>>> (https://twitter.com/jlivingood/status/1720060429311901873):
>>>> 
>>>> _______________________________________________
>>>> Nnagain mailing list
>>>> Nnagain@lists.bufferbloat.net
>>>> https://lists.bufferbloat.net/listinfo/nnagain
>>> 
>>> --
>>> 
>>> Please send any postal/overnight deliveries to:
>>> 
>>> Vint Cerf
>>> Google, LLC
>>> 1900 Reston Metro Plaza, 16th Floor
>>> Reston, VA 20190
>>> +1 (571) 213 1346
>>> 
>>> until further notice
>>> 
>>> _______________________________________________
>>> Nnagain mailing list
>>> Nnagain@lists.bufferbloat.net
>>> https://lists.bufferbloat.net/listinfo/nnagain
>> 
>> 
>> 
>> Links:
>> ------
>> [1] https://www.ietf.org/how/meetings/118/
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