Re: [ippm] Magnus Westerlund's Discuss on draft-ietf-ippm-capacity-metric-method-06: (with DISCUSS)

[Magnus Westerlund <[e-mail]>]

Hi,

Ruediger, if you can find a formulation that covers that national test case I 
am likely fine with it. If the involved parties know who to discuss issues 
with and can get them addressed I am not worried. I am worried where someone 
deploys a couple of servers, like the current TCP speed tests and users run it 
totally by themselves.

And to be clear I think with more experience with large scale deployment of 
the algorithm and more experiments beyond the intended deployment model this 
should be possible to update the specs to remove this type of limitation.

Cheers

Magnus

> -----Original Message-----
> From: [e-mail] <[e-mail]>
> Sent: den 5 mars 2021 12:13
> To: Magnus Westerlund <[e-mail]>
> Cc: [e-mail]; [e-mail]; draft-ietf-ippm-capacity-
> [e-mail]; [e-mail]; [e-mail];
> [e-mail]; [e-mail]
> Subject: AW: Magnus Westerlund's Discuss on draft-ietf-ippm-capacity-
> metric-method-06: (with DISCUSS)
>
> <snip>
>
> I think this is a bit to unclear in regards to the limitation of scope. My
> worry are internet wide measurements. Reading what exists in the currently
> available draft in the Section 10, there are no limitation here described to
> only use this algorithm only across controlled networks. Especially as 
> bullet
> 5 in Section 10 relies on the load algorithm what is currently written is 
> fine
> across the whole internet as long as sender and receiver are okay with the
> measurement which is not what I at least thought we agreed.
>
> Can you please be explicit that the load algorithm is limited to use across
> networks path that are controlled or managed and not intended for Internet
> wide usage.
>
>  - MUST only be used as part of measurements within managed networks,
> and not
> across general Internet.
>
> [RG] That's tough, as regulators are interested in this test and regulators
> aren't part of a domain. So they might resort to TCP speed tests, being less
> accurate and precise and not standardised (note that penalties are discussed
> to be linked to results). I'd be interested in finding agreement to have
> metric and method standardized for at least nations under authority of a
> single regulator. No idea how exactly. Would a bound on RTT/in some
> countries
> multiple instances and some additional parametrization information prior to
> start, e.g., a contracted access bandwidth, help?
>
> [RG] I'm off for the weekend (I'm out for a lasting solution, not 
> necessarily
> a speedy one) - regards,
>
> Ruediger