perfsonar development work

[Jason Zurawski <>]

Nicolas & Fausto;

> > My suggestion for the eventTypes for perfSONAR would be:
> >
> > http://ggf.org/ns/nmwg/characteristic/packets/nonunicast/2.0/
> > http://ggf.org/ns/nmwg/characteristic/packets/unicast/2.0/
>
> If nobody comments the eventTypes names (in particular the "To-ed" 
> from this email), we'll go for them.

I think we need to be careful with the name assignment.  Even though we 
are proposing packet counters, we may wish to  record the same behaviors 
that we currently do with octet counters (e.g. utilization, errors 
discards).  Because these two data types are similar, it would be 
desirable to mimic the same overall structure of the octet counters.

I would propose something that keeps the hierarchy intact:

characteristic
   /utilization
       /octets
       /packets
           /unicast
           /nonunicast
   /errors
       /octets
       /packets
           /unicast
           /nonunicast
   /discards
       /octets
       /packets
           /unicast
           /nonunicast

It also makes sense (probably more so) from this point of view but we 
will sacrifice backwards compatibility:

characteristic
   /octets
      /utilization
      /errors
      /discards
   /packets
       /unicast
           /utilization
           /errors
           /discards
       /nonunicast
           /utilization
           /errors
           /discards

Either way should allow extension better than segregating packets into a 
separate branch of the characteristics hierarchy.

-jason