[Nsi-wg] advanced reservation

[Tomohiro Kudoh]

Hi Guy,

So, to support that, what about the followings?

We will have "reserve" operation only. (advance and immediate are not
separate operations.) Reserve operation will include the following
parameters.

EXPLICIT_SIGNALING(boolean): a flag to indicate signaling message will
be used. If this flag is "false", automatic provisioning will be used.

STRICT_START_TIME(boolean): a flag to indicate whether start time later
than specified is allowed. If "true", if provider NSAs can not provision
resources at the specified START_TIME, they deny the request. If "false",
provider NSAs will provision resources ASAP (after the START_TIME), if
they cannot provision resources on time.

START_TIME(value): Value zero can be used in combination with "false"
STRICT_START_TIME. In this case, ASAP provisioning is requested.

END_TIME(value) or DURATION(value): If END_TIME is used, the provisioning
terminates at this time. If DURATION is used, the provisioning
termination time is calculated by adding this time to the actual
provisioning time.

BTW, I think it is not "advanced reservation" but "advance reservation".

Tomohiro

On Wed, 21 Apr 2010 10:51:15 +0100
Guy Roberts <Guy.Roberts at dante.net> wrote:

> Hello all,
> 
> Following on from last week's conference call and discussions, Tomohiro, Inder, Jerry, Chin and Vangelis and I have come up with a new proposal for advanced reservation in v1.0.  This is essentially a refinement on the existing proposal in the architecture document.
> 
> Some text describing this proposal is included in the attached document.
> 
> In essence this includes:
> 
> -          1PC
> 
> -          All request require a pass/fail response from the Provider NSA
> 
> -          Advanced reservation are supported with start time, end time, duration
> 
> -          Times exchanged on the protocol reflect targets for the in-service time.
> 
> -          It is the responsibility of the provider to achieve the start and end times.  This is done using guard bands unique to each provider NSA and are validated as constraints in path finding.
> 
> -          Immediate reservation is supported with start time = asap
> 
> -          Provisioning may be signalled by the requestor or local initiated by the provider
> 
> I would like to see if we can get consensus on this proposal in today's call.
> 
> Regards,
> Guy
> 
> ------------------------------------------------------------------------------------------------------------------
> Guy  Roberts,  Ph.D
> 
> Network Engineering & Planning
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