A DNS Query including A Main Question with Accompanying Questions

Document Type Expired Internet-Draft (dnsop WG)
Authors Jiankang Yao  , Paul Vixie  , Ning Kong  , XiaoDong Lee 
Last updated 2018-04-19 (latest revision 2017-09-17)
Stream Internent Engineering Task Force (IETF)
Intended RFC status (None)
Expired & archived
pdf htmlized (tools) htmlized bibtex
Stream WG state Candidate for WG Adoption
Polled for WG adoption but not adopted
Document shepherd No shepherd assigned
IESG IESG state Expired
Consensus Boilerplate Unknown
Telechat date
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document enables DNS initiators to send a main question accompanying with several related questions in a single DNS query, and enables DNS responders to put the answers into a single DNS response. This extension enables a range of initiators to look up "X, or failing that, Y" in a better way than both current alternatives. This mechanism can reduce the number of DNS round- trips per application work-unit.


Jiankang Yao (yaojk@cnnic.cn)
Paul Vixie (vixie@fsi.io)
Ning Kong (nkong@cnnic.cn)
XiaoDong Lee (xl@cnnic.cn)

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