DISCOVER: Supporting Multicast DNS Queries (RFC6804)
Original Publication Date: 2012-Nov-01
Included in the Prior Art Database: 2012-Nov-29
Internet Society Requests For Comment (RFCs)
The first existing network service to be investigated was the Domain Name Systems (DNS), which is used to map symbolic Internet names to numeric Internet addresses. Based upon a hierarchical tree structure, the DNS relies upon uninterrupted connectivity of nodes to a special set of static, manually configured root servers. To improve the robustness and availability of the DNS service, TBDS developed and defined enhancements that enable nodes to map names to numbers without the need for uninterrupted connectivity to the Internet root servers. These techniques were automated, allowing transition between connected and unconnected operations to be done without direct human intervention.
Independent Submission B. Manning Request for Comments: 6804 November 2012 Category: Historic ISSN: 2070-1721
DISCOVER: Supporting Multicast DNS Queries
This document describes the DISCOVER opcode, an experimental extension to the Domain Name System (DNS) to use multicast queries for resource discovery. This opcode was tested in experiments run during 1995 and 1996 for the Topology Based Domain Search (TBDS) project. This project is no longer active and there are no current plans to restart it. TBDS was the first known use of multicast transport for DNS. A client multicasts a DNS query using the DISCOVER opcode and processes the multiple responses that may result.
Status of This Memo
This document is not an Internet Standards Track specification; it is published for the historical record.
This document defines a Historic Document for the Internet community. This is a contribution to the RFC Series, independently of any other RFC stream. The RFC Editor has chosen to publish this document at its discretion and makes no statement about its value for implementation or deployment. Documents approved for publication by the RFC Editor are not 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/rfc6804.
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Manning Historic [Page 1]
RFC 6804 DISCOVER November 2012
The TBDS project developed extensions to existing network services to enable software for clients and servers of an application to become more resilient to changes in topology by dynamically sensing changes and switching between client/server and peer-peer methods for both end-system-to-server and server-to-server communications.
The first existing network service to be investigated was the Domain Name Systems (DNS), which is used to map symbolic Internet names to numeric Internet addresses. Based upon a...