I-D ACTION:draft-manning-opcode-discover-01.txt

A New Internet-Draft is available from the on-line Internet-Drafts directories.

	Title		: Supporting unicast replies to multicast queries 
			  in the DNS or DISCOVER opcode defined
	Author(s)	: B. Manning, P. Vixie
	Filename	: draft-manning-opcode-discover-01.txt
	Pages		: 0
	Date		: 2005-6-3

The QUERY opcode in the DNS is designed for unicast environments. 
With the development of multicast capabilities in the DNS, it is  
desirable to have a more robust opcode for server interactions since a 
single request may generate replies from multiple responders. So 
DISCOVER is defined to deal with replies from multiple responders.

As such, this document documents experimental extensions the core DNS
specifications that were made during the TBDS effort, to allow clients 
to have a method for coping with replies from multiple responders. Use 
of this new opcode may facilitate DNS operations in modern networking 
topologies. A prototype of the DISCOVER opcode was developed during 
the TBDS project (1999-2000), funded under DARPA grant F30602-99-1-0523.

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