I-D ACTION:draft-dnsext-opcode-discover-02.txt

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A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the DNS Extensions Working Group of the IETF.

	Title		: The DISCOVER opcode
	Author(s)	: B. Manning, P. Vixie, E. Guttman
	Filename	: draft-dnsext-opcode-discover-02.txt
	Pages		: 0
	Date		: 2003-10-14
	
The QUERY opcode in the DNS is designed for unicast. With the
development of multicast capabilities in the DNS, it is desireable
to have a more robust opcode for server interactions since a single
request may result in replies from multiple responders. So DISCOVER
is defined to deal with replies from multiple responders.
As such, this document extend the core DNS specifications 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 as part of the TBDS project, funded under DARPA grant
F30602-99-1-0523.

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