[Nsi-wg] tomorrow's conf call

[Guy Roberts]

Hi All,


The following is dial-in information for Wednesday's NSI call:



Time:  7:30 PDT  10:30 EDT, 15:30 BST,  16:30 CEST,  23:30 JST



Call: +1-734-615-7474 (Please use if you do not pay for Long Distance) or +1-866-411-0013 (toll free US/Canada Only) Enter access code: 0155180



Agenda:


1.  Review outstanding issues for NSI architecture

2.  Review advance reservation issues (see below)

Guy


Issue

v1.0

status

Comments

Synchronization of Provider/requester timers?

required

agreed

NTP should be ok

1 or 2 phase commit?

1PC

agreed

2PC is considered unnecessary for v1.0

Is automatic provisioning (initiated by timer) required?

Yes

agreed



Is explicit provisioning (initiated by requester message) required?





No agreement on this point

Is advance reservation required?

Yes

agreed



Is immediate reservation required?

yes

agreed



What does start-time mean as used in protocol for auto mode?

Start time refers to in-service begin time

agreed

It is the responsibility of the provider NSA to make sure that this in-service start time is met

What does end-time mean as used in protocol for advance reservation?

End time refers to in-service  end time

agreed



Allow ASAP as start-time for immediate reservation?

Yes

agreed



What does start-time mean as used in protocol for explicit mode?

Reservation start time



Could be:
Start of reservation
Start of provisioning
Start of in-service

What does end-time mean as used in protocol for explicit mode?

Reservation end time



Could be:
end of in-service
End of reservation
Start of de-provisioning

Is connection duration required?





No agreement on this point

Is unspecified end-time allowed?



No agreement on this point

Provider validation of start time?

Validated

agreed

This is a constraint in path finding

Once reservation has been granted, and start times is found to be the past how is this handled?





No agreement on this point

Is a flag necessary to indicate immediate vs. advance reservation

Yes

Agreed



Does each Connection request need a flag to indicate how to expect provisioning to be initiated?

Yes



How does Provider know whether to wait for signal from Requester?

Does a reservation request require a pass/fail response from the Provider NSA?

Yes

Agreed



Is start time later than specified allowed?

Yes





Is a flag needed to indicate whether start time later than specified is allowed

Yes



Other option is to automatically treat all start times in the past as 'now' and send a warning.




------------------------------------------------------------------------------------------------------------------
Guy  Roberts,  Ph.D

Network Engineering & Planning
DANTE - www.dante.net<http://www.dante.net/>
Tel: +44 (0)1223 371 316
City House, 126-130 Hills Road
Cambridge, CB2 1PQ, UK
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