1. draft-liu-netmod-yang-schedule-02
YANG Data Model for Configuration Scheduling draft-liu-netmod-yang-schedule-02 Github:
Xufeng Liu (Ericsson)
Vishnu Pavan Beeram (Juniper Networks)
Igor Bryskin (Huawei Technologies)
Tarek Saad (Cisco)
Himanshu Shah (Ciena)
Oscar Gonzalez De Dios (Telefonica)

2. Introduction A YANG model to specify configuration scheduling.
When schedules are specified on a data object, the object is configured or removed based on the schedules.

3. Changes Updated draft based review comments
Changed from YANG grouping to a separate schema tree
The target application model does not need to include scheduling schema
Scheduling model can be used for any target models without altering, e.g. te-tunnel model
Capable of changing leaf values

4. Model Relatioins module: ietf-schedule +--rw configuration-schedules
+--rw target* [object]
+--rw object yang:xpath1.0
+--rw data-value? string
+--rw schedules
| +--rw schedule*
| rw schedule-id
| rw inclusive-exclusive?
| rw start?
| rw schedule-duration?
| rw repeat-interval?
augment /nw:networks/nw:network/nt:link:
+--rw te!
+--rw config
| +--rw te-link-template*
| +--rw te-link-attributes
| rw schedules
| | +--rw schedule*
| | rw schedule-id
| | rw start?
| | rw schedule-duration?
| | rw repeat-interval?
| rw access-type?
| rw external-domain
| rw is-abstract?
| rw name?

5. Model Structure module: ietf-schedule +--rw configuration-schedules
+--rw target* [object]
+--rw object yang:xpath1.0
+--rw data-value? string
+--rw schedules
| +--rw schedule* [schedule-id]
| rw schedule-id uint32
| rw inclusive-exclusive? enumeration
| rw start? yang:date-and-time
| rw schedule-duration? string
| rw repeat-interval? string
+--ro state
+--ro next-event
+--ro start? yang:date-and-time
+--ro duration? string
+--ro operation? enumeration

6. Usage Example
module: example
+--rw te-links
+--rw te-link* [id]
+--rw id string
<configuration-schedules>
<target xmlns:ex=""urn:example">
<object>/ex:te-links/ex:te-link[ex:link-id='link-1']</object>
<schedules>
<schedule>
<schedule-id>11<schedule-id>
<start> T23:20:50.52Z</start>
<schedule-duration>P1D</schedule-duration>
<repeat-interval>R5/P1W</repeat-interval>
</schedule>
</schedules>
</target>
</configuration-schedules>
link-1 is configured weekly for 5 1-day periods, starting from T23:20:50.52Z.

7. Next Steps
Solicit comments
WG consensus