perfsonar development work

[Andreas Hanemann <>]

Hi Joe,

For the visualization we can offer you to design special CNM maps to
show the LHC network in addition to the monitoring via perfsonarUI. The
CNM visualization of the measurements you describe can then also be
linked to the measurements of JRA4 WI3 (Mark and Matthias) so that the
measurement results can be linked with data whether a link is
operational or not.

One-way delay measurements can be performed using the measurement boxes
of DFN Erlangen (http://www-win.rrze.uni-erlangen.de/ippm/). These boxes
also provide additional metrics such as jitter and packet loss. An MA
for these measurements is currently installed at DFN Erlangen.

Best regards
Andreas

Joe Metzger wrote:
> Hi,
> I am trying to identify appropriate tools for the LHCOPN community to
> deploy to monitor latency and congestion on their links using the
> perfSONAR framework.  I am concern because they need to
> start moving forward with monitoring now. And I am not sure all
> the necessary perfSONAR components exist yet.
>
>
> The expected deployment would look something like:
> 1. Each site deploys a one-way delay measurement point (MP).
>
> 2. Each site deploys a measurement archive (MA).
>
> 3. All the MA's and MP's register with a common LS, (or a
>    set of cooperating LS's in a multi-LS environment.)
>
> 4. Each site configures their MP to run continuous
>    tests to their neighbors of interest, and publish
>    the results in their MA.
>
> 5. A GUI allows end users to visualize the data.
>
> 6. Some sites with NOCs, deploy an alarm tool that regularly
>    fetches the data for a given subset of links from the
>    MA's and raises alarms if the performance is out of spec:
>    IE no data for a recent period, or the latency exceeds
>    some threshold criteria.
>
> I am aware of efforts to address some of these issues, but I am
> not sure when it will all come together.
>
> I expect the current RRDMA and/or the SQLMA and the LS will meet the
> needs.
>
> I am not as clear about the MP, or the component that will
> cause the MP to make continuous tests. Who is working on these?
>
> Will the perfSONARUI work to visualize the data?
>
> Is anybody outside of SLAC working on data analysis and automatic
> alarm generation?
>
> --Joe
>
>
>
>

-- 
Andreas Hanemann, 

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