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Hybrid Unicast/Multicast DNS-Based Service Discovery

Document Type Replaced Internet-Draft (individual)
Expired & archived
Author Stuart Cheshire
Last updated 2013-10-28 (Latest revision 2013-07-11)
Replaced by draft-cheshire-dnssd-hybrid
RFC stream (None)
Intended RFC status (None)
Stream Stream state (No stream defined)
Consensus boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Replaced by draft-cheshire-dnssd-hybrid
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


Performing DNS-Based Service Discovery using purely Multicast DNS allows discovery only of services present on the local link. Using a very large local link with thousands of hosts improves service discovery, but at the cost of large amounts of multicast traffic. Performing DNS-Based Service Discovery using purely Unicast DNS is more efficient, but requires configuration of DNS Update keys on the devices offering the services, which can be onerous for simple devices like printers and network cameras. Hence a compromise is needed, that provides easy service discovery without requiring either large amounts of multicast traffic or onerous configuration.


Stuart Cheshire

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)