[Nsi-wg] Query request

Hans Trompert hans.trompert at surfnet.nl
Thu Nov 1 07:57:48 EDT 2012


Hmm, this version is from June this year, there have been two OGF
meetings since then and a lot has changed, isn't there a newer version
of this document (Guy can probably answer this)?

    HansT.

On 10/31/12 1:58 PM, michalb wrote:
> Hans,
>
> I found it here https://forge.ogf.org/sf/go/doc16446?nav=1
>
> ReplyTo can be found on 12/13 page.
>
> br
> michal
>
> -----Oryginalna wiadomość----- From: Hans Trompert
> Sent: Wednesday, October 31, 2012 1:54 PM
> To: michalb
> Cc: nsi-wg at ogf.org
> Subject: Re: [Nsi-wg] Query request
>
> Hi Michal,
>
> On 10/31/12 1:25 PM, michalb wrote:
>> 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):
>
> Do you know where I can find the latest version of the NSI CS 2.0
> document?
>
>> "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.
>
> Very good point, this leaves users behind firewalls and NATs completely
> in the dark about the status of there reservation. This could easily be
> solved because a summary query that is supposed to only return
> information local to that NSA there is no need to send the result
> asynchronous.
>
>    HansT.
>
>
>
>> -----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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