[Nsi-wg] State Machine

[Tomohiro Kudoh]

Hi John,

provision_complete and cancel_complete message initiated by Figure.9 state
machine, which are translated to prov.cf and cncl.cf by the PA state
machine (Figure 4) works as "start time" and "end time" notifications
respectively.

If you have time, could we exchange IM over skype. I've sent a contact
request to you.

Tomohiro


On Mon, 6 Jun 2011 09:34:27 -0400
John MacAuley <john.macauley at surfnet.nl> wrote:

> Tomohiro,
> 
> In this state machine what are the internal messages associated with the timers "start time" of a reservation and the "end time" of the reservation?
> 
> Thank you,
> John.
> 
> On 2011-06-03, at 6:06 AM, Tomohiro Kudoh wrote:
> 
> > Hi John and all,
> > 
> > I think "timer" should not be directly included in the input alphabet of
> > messaging state machines. "start time" and "end time" is managed by
> > ultimate-providers/NRMs. 
> > 
> > However, as you pointed out, there should be a way to notify "provisioning
> > end time" from the ultimate-providers to upstream NSAs.
> > 
> > In the update state machines at the gridforge (which Guy announced
> > yesterday), "provisioning end time" is notified by a "cncl.cf" message.
> > That is, an ultimate provider sends a "cncl.cf" message when provisioning
> > end time comes, even if it has not received a "cncl.rq" message. 
> > 
> > Please take a look at the ultimate provider's state machine (figure 9)
> > too.
> > 
> > BTW, I made a state transition table of PA/RA state machines (attached),
> > to consider all possible cases comprehensively. 
> > 
> > Questions:
> > 1. Don't we need to consider "cancel failure"?
> > 2. What if unexpected input comes? ("N/A" boxes in the table) Are they
> > all errors? If they are errors, what should the SM do?
> > 
> > Tomohiro
> > 
> > On Wed, 01 Jun 2011 17:12:01 +0200 (CEST)
> > John MacAuley <john.macauley at surfnet.nl> wrote:
> > 
> >> Peoples,
> >> 
> >> I modified Jerry's state machine based on some discussions in Prague.  I added "provision_end" time as an event to go from any state to cancelling.
> >> 
> >> I have also added a provision pending state.  Does this make sense?
> >> 
> >> John
> >> 
> >> ----- Original Message -----
> >>> From: "Jerry Sobieski" <jerry at nordu.net>
> >>> To: nsi-wg at ogf.org
> >>> Sent: Wednesday, June 1, 2011 10:14:58 AM
> >>> Subject: [Nsi-wg] State Machine
> >>> 
> >>> 
> >>> 
> >>> _______________________________________________
> >>> nsi-wg mailing list
> >>> nsi-wg at ogf.org
> >>> http://www.ogf.org/mailman/listinfo/nsi-wg
> >>> 
> > <MSG-SM.xlsx>
>