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: |
|
What does end-time mean as used in protocol for
explicit mode? |
Reservation end time |
|
Could be: End of reservation |
|
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
Tel: +44 (0)1223 371 316
City House, 126-130
Hills Road
Cambridge, CB2 1PQ,
UK
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