The IESG has approved the following document: - 'Requirements for Subscription to YANG Datastores' (draft-ietf-i2rs-pub-sub-requirements-09.txt) as Informational RFC This document is the product of the Interface to the Routing System Working Group. The IESG contact persons are Alvaro Retana, Alia Atlas and Deborah Brungard. A URL of this Internet Draft is: https://datatracker.ietf.org/doc/draft-ietf-i2rs-pub-sub-requirements/ Technical Summary This document provides requirements for a service that allows client applications to subscribe to updates of a YANG datastore. Based on criteria negotiated as part of a subscription, updates will be pushed to targeted recipients. Such a capability eliminates the need for periodic polling of YANG datastores by applications and fills a functional gap in existing YANG transports (i.e. Netconf and Restconf). Such a service can be summarized as a "pub/sub" service for YANG datastore updates. Beyond a set of basic requirements for the service, various refinements are addressed. These refinements include: periodicity of object updates, filtering out of objects underneath a requested a subtree, and delivery QoS guarantees. Working Group Summary Working consensus for requirements was honed over 6 months (May -Nov 2015). WG LC done on individual draft 5/26/2015 to 6/9/2015 WG LC done with All of requirement drafts 10/6/2015 to 10/20/2015 Document Quality Are there existing implementations of the protocol? Have a significant number of vendors indicated their plan to implement the specification? Are there any reviewers that merit special mention as having done a thorough review, e.g., one that resulted in important changes or a conclusion that the document had no substantive issues? If there was a MIB Doctor, Media Type, or other Expert Review, what was its course (briefly)? In the case of a Media Type Review, on what date was the request posted? Personnel Document shepherd: Susan Hares WG Chairs: Susan Hares and Jeff Haas AD: Alia Atlas