[GTALUG] How do I demonstrate a crappy network?

[Dave Collier-Brown]

On 2021-01-19 4:49 p.m., Giles Orr wrote:
> On Tue, 19 Jan 2021 at 16:21, David Collier-Brown via talk
> <talk at gtalug.org> wrote:
>> On 2021-01-19 11:15 a.m., David Collier-Brown wrote:
>>> On 2021-01-19 9:56 a.m., Stewart C. Russell via talk wrote:
>>>
>>>> On 2021-01-19 7:19 a.m., David Collier-Brown via talk wrote:
>>>>> What is something that I can make fail, either audibly or visually?
>>>>> Showing my grandmother ping statistics isn't going to work (;-))
>>>> Video call over 2.4 GHz wifi, then start the microwave. Glitchtastic
>>>> every time.
>>> I'm not sure the Linux networking changes help with that (;-))
>>>
>>> --dave
>> Joking aside, is there a famously _bad_ video or audio site, one that
>> everyone hates?
>>
>> Or a setting for a service that makes it fail?
> Here's an idea - no clue if it's a good one.
>
> Get yourself access to a low bandwidth connection: if the following
> table is correct (dubious source and video compression always varies
> depending on content) then you can easily saturate a 10Mbps DSL line
> with a 4K video:
>
> Resolutions Required   Bandwidth Required
>                                        H264        H265
> 1280×720(HD)              3Mbps    1.5Mbps
> 1920X1080(FHD)         6Mbps     3Mbps
> 3840×2160 (UHD)       25Mbps   12Mbps
> 4096×2160 (4K)           32Mbps   15Mbps
>
> (source: https://www.synopi.com/bandwidth-required-for-hd-fhd-4k-video/
> in case the table got mangled into unreadability. )
>
> Maybe you have a way to fractionalize your own network connection if
> you don't have access to 10/1 DSL.
>
> With YouTube, you can select the resolution (although it's not very
> granular at the top end).  If you can toggle CAKE on/off, see if the
> saturated line becomes unsaturated.  If not, reduce the video
> resolution and repeat.  YouTube's "Stats for Nerds" may also be
> helpful?
>
Aha, their stats aren't something I've looked into. Thanks!

--dave

-- 
David Collier-Brown,         | Always do right. This will gratify
System Programmer and Author | some people and astonish the rest
dave.collier-brown at indexexchange.com |              -- Mark Twain