perfsonar development work

[Toby Rodwell <>]

Hi Jeff/all,
Just to reassure you, cNIS will indeed implement interfaces for each and
every GN2 application (which includes perfSONAR). As and when the cNIS
service replaces TopS it will still implement the same TopS interface,
or to put it another way cNIS will honour and respect whatever interface
perfSONAR requires of it (and will do the same for the other GN2 apps).

However, for completeness, I wouldn't say that "... cNIS needs *to be*
an implementation of the perfSONAR TopS service specification", rather I
would say 'cNIS will implement the perfSONAR TopS service specification'.

regards
Toby

Jeff W. Boote wrote:
> Andreas Hanemann wrote:
>> Yes, you are right. The cNIS service will replace the TopS and it will
>> cover requirements from (at least) JRA1, JRA3, JRA4, and SA3.
> 
> I don't disagree, but I would like to clear one issue up. The TopS 
> perfSONAR 
> interface/protocol is not being replaced. I realize when you say replace, 
> you 
> probably mean replace the current TopS implementation.
> 
> I only bring this up to make sure we distinguish between the TopS 
> "interface/protocol" and the TopS implementation. I think these two things 
> could 
> be getting confused in this discussion. (If not, please ignore this 
> message. ;) )
> 
>  From an implementation perspective in JRA-1, there is no problem with any 
> of 
> the discussions I have seen. But I bring this up because of 
> interoperability 
> concerns.
> 
> I would say that cNIS needs to be an implementation of the perfSONAR TopS 
> service specification. (cNIS can of course implement more interfaces.) But, 
> to 
> ensure interoperability with all the other networks in the world that are 
> unlikely to deploy a full cNIS, we (perfSONAR) need to define very well the 
> perfSONAR TopS interface and protocols.
> 
> jeff
> 
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> 
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Toby Rodwell
Network Engineer

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