[atlas] Probe with ever changing upstreams/ASs?

+ripe-atlas

Regards,

Grzegorz

 From: "Ponikierski, Grzegorz" <gponikie at akamai.com>
Date: Thursday, 3 August 2023 at 17:49
To: Carsten Schiefner <carsten at schiefner.de>
Subject: Re: [atlas] Probe with ever changing upstreams/ASs?

Hi!

It depends on use case. For me, such probe would be fine for one-off 
measurements but for continuous measurements I would filter out such 
probe to avoid noise in data. However, when I looked on freifunk.net map 
I noticed that this network span across Germany, Switzerland, and 
Austria so even for one-off measurements usage of such probe is 
questionable because I never know where remote end of the tunnel is. If 
I understand correctly it can jump from country to country every day. In 
other words, such probe would be tricky to handle and user will have to 
be aware how such probe behave to properly handle data generated by it. 
Probably new system tag would be needed to mark such exotic probe.

Regards,

Grzegorz

 From: Carsten Schiefner <carsten at schiefner.de>
Date: Thursday, 3 August 2023 at 15:07
To: "ripe-atlas at ripe.net" <ripe-atlas at ripe.net>
Subject: [atlas] Probe with ever changing upstreams/ASs?

All -

I wonder whether this is a good idea or rather a really bad one...

I have a free port on a Freifunk router where I could plug in a RIPE

Atlas probe.

Freifunk is a community where you - amongst other things - can offer a

bit of your bandwidth to "the world". This connectivity sharing however

is set up as a tunnel to various ISPs (for-profit companies and

non-profit associations) as these would enjoy the "provider privilege":

that in short is not to be held accountable for e.g. copy right

infringements etc. ("Störerhaftung").

Anyhow: as part of this tunnel setup, the other end of the tunnel

changes every 24 to 48 hours - and so does the upstream and therefore

also the AS of the upstream provider.

And now I am asking myself: a probe with ever changing upstreams/ASs -

shall such an addition to the RIPE Atlas network be considered a fault

or a feature?

Any comments, anybody?

Cheers,

                 -C.

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