[atlas] (no subject)

On 17 Dec 2013, at 20:05, Robert Kisteleki <robert at ripe.net> wrote:

> On 2013.12.17. 16:44, Eravuchira, Steffie Jacob wrote:
> 
>> There are three hardware versions of RIPE Atlas probes namely v1,v2 and
>> v3. Each of the support different firmware versions. Can I get the latest
>> firmware version supported by each the hardware versions?
>> 
>> Thanks, Steffie
> 
> Hello,
> 
> Usually the different hardware revisions run the same firmware version.
> Currently that's not the case (v3 is one version ahead at 4580, v1/2 are at
> 4570).
> 
> The system automatically notifies probes about the latest firmware available
> for that hardware revision whenever the probe reconnects. The probe then
> upgrades right away, if the latest version is not yet installed. This
> requires no intervention from the probe host.
> 
> If the probe is otherwise up and running happily, then it does not get the
> notification, therefore does not upgrade until the next reconnect. So in
> general we have a lazy upgrade approach.
> 
> As of right now, all connected probes across all probe hardware revisions
> are running the latest firmware version available (with the exception of two
> misbehaving v2 probes).

Hello Robert,

The question popped up at our end because we were looking at the plots of measurement results 
generated by different probes. We wanted to make sure these probes were comprised of the 
same hardware and that they run the same firmware version. It’s great that each UDM attaches
the firmware version of the probe as a tag in its results. However:

a) Although, the hardwares currently are capable of running the same firmware revision, but 
as you mentioned, at times they diverge away. 

b) Would different hardwares always support the latest firmware version? I ask because v3
is more capable than v1/v2, and I don’t know if you plan to diverge away the firmware at 
some point to provide more measurement capabilities for v3 probes.

Due to a) and b) would it make sense to also attach the hardware version (v1, v2, v3) of 
the probe as a tag in each UDM result as well? We don’t know if different hardwares have
effects on the measurement results. We can cross-confirm this if the UDMs attach a 
hardware version in addition to the firmware revision.

Thanks!

Best, Vaibhav

-----------------------------------------------------
Vaibhav Bajpai

Research I, Room 86
Computer Networks and Distributed Systems  (CNDS) Lab
School of Engineering and Sciences
Jacobs University Bremen, Germany

www.vaibhavbajpai.com
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