[Nsi-wg] Query request

John MacAuley john.macauley at surfnet.nl
Wed Oct 31 09:24:07 EDT 2012


You are correct.  There is currently no alternative mechanism.

Sent from my iPhone

On 2012-10-31, at 8:25 AM, "michalb" <michalb at man.poznan.pl> wrote:

> Hello Hans,
> 
> I wanted to point out a little bit of protocol inconsistance. In the NSI Connection Service Protocol_20_v1 doc one can read (regarding 'replyTo' field):
> 
> "If no endpoint value is provided in a operation request, then it is assumed the requester is not interested in a response and will use alternative mechanism to determine the result."
> 
> So for some GUI purposes which surely will be behind firewall/NAT, I reserve, provison, etc with no 'replyTo' provided and now I'd like to "use alternative mechanism to determine the result" (which is query) and because query is async only the whole thing gets defeated. Would be nice to have a simple query that returns basic query result so the feature of not setting 'replyTo' would have more sense.
> 
> br
> michal
> 
> -----Oryginalna wiadomość----- From: Hans Trompert
> Sent: Wednesday, October 31, 2012 1:01 PM
> To: michalb
> Cc: nsi-wg at ogf.org
> Subject: Re: [Nsi-wg] Query request
> 
> Hi Michal,
> 
> The NSI WG is well aware of the fact that the asynchronous behavior of
> the protocol isn't working for those behind a firewall or NAT. A couple
> of organizations that are connected to SURFnet started to implement NSI
> to provision paths through our network and they all run into this
> problem. To help them out SURFnet offered to come up with a `user NSI CS
> protocol'  that is firewall and NAT save. You are invited to help define
> how this should look like :)
> 
>   HansT.
> 
> On 10/31/12 11:24 AM, michalb wrote:
>> Hello,
>> 
>> This is for reservation query - will there be a synchronous version of
>> that operation (basic query at least)? It is not always possible to
>> listen on query responses and polling would help under such
>> circumstances.
>> 
>> br
>> michal
>> 
>> 
>> -----Oryginalna wiadomość----- From: Jeroen van der Ham
>> Sent: Tuesday, September 18, 2012 4:37 PM
>> To: nsi-wg at ogf.org Group
>> Subject: [Nsi-wg] Query request
>> 
>> Hi,
>> 
>> While thinking about a demonstration scenario for SC, we came upon an
>> interesting use-case for the query command. We are trying to plan
>> workflows on the infrastructure, depending on availability. For that
>> it would actually be useful to know not only if a certain resource is
>> in use, but also when it could become available again.
>> 
>> Would it be possible to add capabilities for the query command to
>> provide something like that?
>> 
>> Jeroen.
>> 
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> 
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