[Nsi-wg] tomorrow's conf call
Guy Roberts
Guy.Roberts at dante.net
Tue May 4 08:06:33 CDT 2010
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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