[mat-wg] RIPE Atlas / UDM as a replacement for TTM

Hi,

things have been strangely silent on the topic of "the end of the TTM
boxes" after the last RIPE meeting - so let me try to stir this somewhat.

I've been told that UDMs in Atlas "can do what I need" (use RIPE 
measurements to prove to our customers that our Internet reachability
is good).  It might, but I find it surprising painful, as I can only
request pings from "10 probes at a time" in the UDM - and for reasonable
accuracy, we'd need something of at least the size of TTM (100+ probes),
or *better*, as we know that individual Atlas probes are not expected
to have the same network stability as a TTM box ("always up. ALWAYS!") -
setting up 30 or more individual UDMs to get 150 clients each to ping our
two TTM boxes is... not the way to go.


Second, I'm a bit confused how to automatedly download the .json-format
UDM results - while I'm logged in, clicking on the link gives me a nice
.json download, but when using the same link with wget, I get a login
page.  I'm not overly willing to download 30 UDM result files manually
every day - so there must be some way to use "wget" etc. to get these
data files...  any hints on that?

Example link: https://udm01.atlas.ripe.net/atlas/udm_download.json?attach=1&msm_id=1002000&y=2012&w=25


Third, we still need reasonable ping targets in our network, that
are sort of "not under our control" (to meet the goal of "the RIPE NCC
does these measurements, they are neutral, so we're not faking anything
here") - and that are not part of the normal network churn that 
www.space.net or one of our routers might have.  So far we use the TTM
boxes for that - but they might die of old age some day...  Which brings 
back the topic of the Atlas Anchor boxes...  any news on that?

Gert Doering
        -- NetMaster
-- 
have you enabled IPv6 on something today...?

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