Requirements for Subscription to YANG Datastores (RFC7923)
Original Publication Date: 2016-Jun-01
Included in the Prior Art Database: 2016-Jul-01
Internet Society Requests For Comment (RFCs)
E. Voit: AUTHOR [+3]
Applications interacting with YANG datastores require capabilities beyond the traditional client-server configuration of network elements. One class of such applications are service-assurance applications, which must maintain a continuous view of operational data and state. Another class of applications are security applications, which must continuously track changes made upon network elements to ensure compliance with corporate policy.
Internet Engineering Task Force (IETF) E. Voit Request for Comments: 7923 A. Clemm Category: Informational A. Gonzalez Prieto ISSN: 2070-1721 Cisco Systems June 2016
Requirements for Subscription to YANG Datastores
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.
Status of This Memo
This document is not an Internet Standards Track specification; it is published for informational purposes.
This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Not all documents approved by the IESG are a candidate for any level of Internet Standard; see Section 2 of RFC 7841.
Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at http://www.rfc-editor.org/info/rfc7923.
Voit, et al. Informational [Page 1]
RFC 7923 YANG Subscription Requirements June 2016
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