Requirements for Scalable DNS-Based Service Discovery (DNS-SD) / Multicast DNS (mDNS) Extensions (RFC7558)
Original Publication Date: 2015-Jul-01
Included in the Prior Art Database: 2015-Jul-15
Internet Society Requests For Comment (RFCs)
K. Lynn: AUTHOR [+4]
DNS-based Service Discovery [DNS-SD] in combination with its companion technology Multicast DNS [mDNS] is widely used today for discovery and resolution of services and names on a local link. As users move to multi-link home or campus networks, however, they find that mDNS (by design) does not work across routers. DNS-SD can also be used in conjunction with conventional unicast DNS to enable wide-area service discovery, but this capability is not yet widely deployed. This disconnect between customer needs and current practice has led to calls for improvement, such as the Educause petition [EP].
Internet Engineering Task Force (IETF) K. Lynn Request for Comments: 7558 Verizon Labs Category: Informational S. Cheshire ISSN: 2070-1721 Apple, Inc. M. Blanchet Viagenie D. Migault Ericsson July 2015
Requirements for Scalable DNS-Based Service Discovery (DNS-SD) / Multicast DNS (mDNS) Extensions
DNS-based Service Discovery (DNS-SD) over Multicast DNS (mDNS) is widely used today for discovery and resolution of services and names on a local link, but there are use cases to extend DNS-SD/mDNS to enable service discovery beyond the local link. This document provides a problem statement and a list of requirements for scalable DNS-SD.
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 5741.
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/rfc7558.
Lynn, et al. Informational [Page 1]
RFC 7558 Scalable DNS-SD Requirements July 2015
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