RFC 7923

Requirements for Subscription to YANG Datastores, June 2016

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E. Voit
A. Clemm
A. Gonzalez Prieto
i2rs (rtg)

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DOI:  10.17487/RFC7923

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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., Network Configuration Protocol (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.

For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 4844.

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