[atlas]trying to collect basic info about the architecture
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Emile Aben
emile.aben at ripe.net
Wed Dec 22 12:09:28 CET 2010
On 21/12/2010 18:23, Wilfried Woeber, UniVie/ACOnet wrote: > Dear ATLAS-Team, > > I am aware of the fact that my poking and attempt to collect information > may be premature, as the whole thing is still very much in development... > > Still, I think it would be useful for many of us to have some sort of > "snapshot" regarding the behaviour of the probes and the framework they > live in. > > The initial basic questions on my end would be: > > What does the term "connect", to one of the controllers, really mean in > terms of TCP/IP Lingo? Like: does the thing open a TCP hose to the controller? > Is communication based on UDP and/or on TCP? It's a single SSH connection on TCP/443. > Is the probe capable of bufffering data for a while if connectivity to the > Net is still there, but not to the controller(s)? Yes, the probes have a limited capability to do so. I think it's currently capable of storing a couple of minutes worth of data. > Is there any means to (locally, on the same subnet, or even remotely) > trigger or "reboot" a probe, other than disconnecting power (which means > physical access required)? Currently there is no way for users to reboot a probe other then disconnecting power. If this is a capability that people would like to have, we could look into ways we could make that happen. > I am also wondering how much of this stuff is available already and where > to collect it - the 'labs pool may be more appropriate than this list? The presentation at RIPE61 and the RIPE Labs articles are what we have this far. If there is a need for more documentation at this point, we'll listen of course, but that would also take resources away from developments. > Thanks to everyone who was and is involved in this fascinating project, > with season's greatings and a happy (2010)++ to everyone, > Wilfried. Best wishes from a snowy Amsterdam, on behalf of the whole team! Emile Aben RIPE NCC > PS: for a future version of the probes or as an optional gadget: > how about making the thing capable of feeding it off 2 different > power plugs, e.g. a primary and a UPS? :-) The power-input is USB, so if you can make whatever feeds power to the USB redundant you effectively accomplish what I think you want.
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