A new Request for Comments is now available in online RFC libraries. RFC 7975 Title: Request Routing Redirection Interface for Content Delivery Network (CDN) Interconnection Author: B. Niven-Jenkins, Ed., R. van Brandenburg, Ed. Status: Standards Track Stream: IETF Date: October 2016 Mailbox: ben.niven-jenkins@nokia.com, ray.vanbrandenburg@tno.nl Pages: 35 Characters: 75830 Updates/Obsoletes/SeeAlso: None I-D Tag: draft-ietf-cdni-redirection-20.txt URL: https://www.rfc-editor.org/info/rfc7975 DOI: http://dx.doi.org/10.17487/RFC7975 The Request Routing interface comprises (1) the asynchronous advertisement of footprint and capabilities by a downstream Content Delivery Network (CDN) that allows an upstream CDN to decide whether to redirect particular user requests to that downstream CDN; and (2) the synchronous operation of an upstream CDN requesting whether a downstream CDN is prepared to accept a user request and of a downstream CDN responding with how to actually redirect the user request. This document describes an interface for the latter part, i.e., the CDNI Request Routing Redirection interface. This document is a product of the Content Delivery Networks Interconnection Working Group of the IETF. This is now a Proposed Standard. STANDARDS TRACK: This document specifies an Internet Standards Track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the Official Internet Protocol Standards (https://www.rfc-editor.org/standards) for the standardization state and status of this protocol. Distribution of this memo is unlimited. This announcement is sent to the IETF-Announce and rfc-dist lists. To subscribe or unsubscribe, see https://www.ietf.org/mailman/listinfo/ietf-announce https://mailman.rfc-editor.org/mailman/listinfo/rfc-dist For searching the RFC series, see https://www.rfc-editor.org/search For downloading RFCs, see https://www.rfc-editor.org/retrieve/bulk Requests for special distribution should be addressed to either the author of the RFC in question, or to rfc-editor@rfc-editor.org. Unless specifically noted otherwise on the RFC itself, all RFCs are for unlimited distribution. The RFC Editor Team Association Management Solutions, LLC