draft-ietf-dnssd-mdns-dns-interop-03.txt   draft-ietf-dnssd-mdns-dns-interop-04.txt 
DNSSD A. Sullivan DNSSD A. Sullivan
Internet-Draft Dyn Internet-Draft Dyn
Intended status: Informational July 3, 2016 Intended status: Informational January 3, 2017
Expires: January 4, 2017 Expires: July 7, 2017
On Interoperation of Labels Among Conventional DNS and Other Resolution On Interoperation of Labels Among Conventional DNS and Other Resolution
Systems Systems
draft-ietf-dnssd-mdns-dns-interop-03 draft-ietf-dnssd-mdns-dns-interop-04
Abstract Abstract
Despite its name, DNS-Based Service Discovery can use naming systems Despite its name, DNS-Based Service Discovery can use naming systems
other than the Domain Name System when looking for services. other than the Domain Name System when looking for services.
Moreover, when it uses the DNS, DNS-Based Service Discovery uses the Moreover, when it uses the DNS, DNS-Based Service Discovery uses the
full capability of DNS, rather than using a subset of available full capability of DNS, rather than using a subset of available
octets. In order for DNS-SD to be used effectively in environments octets. In order for DNS-SD to be used effectively in environments
where multiple different name systems and conventions for their where multiple different name systems and conventions for their
operation are in use, it is important to attend to differences in the operation are in use, it is important to attend to differences in the
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Internet-Drafts are working documents of the Internet Engineering Internet-Drafts are working documents of the Internet Engineering
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material or to cite them other than as "work in progress." material or to cite them other than as "work in progress."
This Internet-Draft will expire on January 4, 2017. This Internet-Draft will expire on July 7, 2017.
Copyright Notice Copyright Notice
Copyright (c) 2016 IETF Trust and the persons identified as the Copyright (c) 2017 IETF Trust and the persons identified as the
document authors. All rights reserved. document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of (http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with respect carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must to this document. Code Components extracted from this document must
include Simplified BSD License text as described in Section 4.e of include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as the Trust Legal Provisions and are provided without warranty as
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Instance Name . . . . . . . . . . . . . . . . . . . . . . 6 Instance Name . . . . . . . . . . . . . . . . . . . . . . 6
4.2. The <Service> Portion of the Service 4.2. The <Service> Portion of the Service
Instance Name . . . . . . . . . . . . . . . . . . . . . . 7 Instance Name . . . . . . . . . . . . . . . . . . . . . . 7
4.3. The <Domain> Portion of the Service Instance 4.3. The <Domain> Portion of the Service Instance
Name . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Name . . . . . . . . . . . . . . . . . . . . . . . . . . 7
5. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 9 5. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 9
6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 9 6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 9
7. Security Considerations . . . . . . . . . . . . . . . . . . . 9 7. Security Considerations . . . . . . . . . . . . . . . . . . . 9
8. Informative References . . . . . . . . . . . . . . . . . . . 9 8. Informative References . . . . . . . . . . . . . . . . . . . 9
Appendix A. Change History . . . . . . . . . . . . . . . . . . . 11 Appendix A. Change History . . . . . . . . . . . . . . . . . . . 11
A.1. draft-ietf-dnssd-mdns-dns-interop-03 . . . . . . . . . . 11 A.1. draft-ietf-dnssd-mdns-dns-interop-04 . . . . . . . . . . 11
A.2. draft-ietf-dnssd-mdns-dns-interop-02 . . . . . . . . . . 11 A.2. draft-ietf-dnssd-mdns-dns-interop-03 . . . . . . . . . . 11
A.3. draft-ietf-dnssd-mdns-dns-interop-01 . . . . . . . . . . 11 A.3. draft-ietf-dnssd-mdns-dns-interop-02 . . . . . . . . . . 11
A.4. draft-ietf-dnssd-mdns-dns-interop-00 . . . . . . . . . . 11 A.4. draft-ietf-dnssd-mdns-dns-interop-01 . . . . . . . . . . 11
A.5. draft-sullivan-dnssd-mdns-dns-interop-01 . . . . . . . . 11 A.5. draft-ietf-dnssd-mdns-dns-interop-00 . . . . . . . . . . 11
A.6. draft-sullivan-dnssd-mdns-dns-interop-00 . . . . . . . . 12 A.6. draft-sullivan-dnssd-mdns-dns-interop-01 . . . . . . . . 12
A.7. draft-sullivan-dnssd-mdns-dns-interop-00 . . . . . . . . 12
Author's Address . . . . . . . . . . . . . . . . . . . . . . . . 12 Author's Address . . . . . . . . . . . . . . . . . . . . . . . . 12
1. Introduction 1. Introduction
DNS-Based Service Discovery (DNS-SD, [RFC6763]) specifies a mechanism DNS-Based Service Discovery (DNS-SD, [RFC6763]) specifies a mechanism
for discovering services using queries to the Domain Name System for discovering services using queries to the Domain Name System
(DNS, [RFC1034], [RFC1035]); and to any other system that uses domain (DNS, [RFC1034], [RFC1035]); and to any other system that uses domain
names, such as Multicast DNS (mDNS, [RFC6762]). Many applications names, such as Multicast DNS (mDNS, [RFC6762]). Many applications
that use the DNS follow "Internet hostname" syntax [RFC0952] for that use the DNS follow "Internet hostname" syntax [RFC0952] for
labels -- the so-called LDH rule. That convention is the reason labels -- the so-called LDH rule. That convention is the reason
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[RFC7719] Hoffman, P., Sullivan, A., and K. Fujiwara, "DNS [RFC7719] Hoffman, P., Sullivan, A., and K. Fujiwara, "DNS
Terminology", RFC 7719, DOI 10.17487/RFC7719, December Terminology", RFC 7719, DOI 10.17487/RFC7719, December
2015, <http://www.rfc-editor.org/info/rfc7719>. 2015, <http://www.rfc-editor.org/info/rfc7719>.
Appendix A. Change History Appendix A. Change History
Note to RFC Editor: this section should be removed prior to Note to RFC Editor: this section should be removed prior to
publication. publication.
A.1. draft-ietf-dnssd-mdns-dns-interop-03 A.1. draft-ietf-dnssd-mdns-dns-interop-04
o Unchaged content to reset the I-D repo timer.
A.2. draft-ietf-dnssd-mdns-dns-interop-03
o Additional alteration of title o Additional alteration of title
o Attempt to address WGLC comments from Dave Thaler (2016-04-02) o Attempt to address WGLC comments from Dave Thaler (2016-04-02)
A.2. draft-ietf-dnssd-mdns-dns-interop-02 A.3. draft-ietf-dnssd-mdns-dns-interop-02
o Altered the title to make it more generic than mDNS. o Altered the title to make it more generic than mDNS.
o Addressed issues raised by Dave Thaler in review on 2015-07-18. o Addressed issues raised by Dave Thaler in review on 2015-07-18.
o Added a note to Section 7 about visual confusion. I don't know o Added a note to Section 7 about visual confusion. I don't know
whether this will satisfy Doug Otis but it is the only thing I can whether this will satisfy Doug Otis but it is the only thing I can
see that could possibly be relevant. see that could possibly be relevant.
o Added discussion of finding "boundary" in Section 4.3. o Added discussion of finding "boundary" in Section 4.3.
A.3. draft-ietf-dnssd-mdns-dns-interop-01 A.4. draft-ietf-dnssd-mdns-dns-interop-01
Alter text to make clear that the main issue is the way the public Alter text to make clear that the main issue is the way the public
DNS is currently administered, not system resolvers. I suppose this DNS is currently administered, not system resolvers. I suppose this
should have been clear before, but I didn't do that. Many thanks to should have been clear before, but I didn't do that. Many thanks to
Kerry Lynn for penetrating questions that illuminated what I'd left Kerry Lynn for penetrating questions that illuminated what I'd left
out. out.
A.4. draft-ietf-dnssd-mdns-dns-interop-00 A.5. draft-ietf-dnssd-mdns-dns-interop-00
1st WG version 1st WG version
Add text to make clear that fallback from A-label lookup to UTF-8 Add text to make clear that fallback from A-label lookup to UTF-8
label lookup ok, per WG comments at IETF 91 label lookup ok, per WG comments at IETF 91
A.5. draft-sullivan-dnssd-mdns-dns-interop-01 A.6. draft-sullivan-dnssd-mdns-dns-interop-01
o Decided which portions would be affected o Decided which portions would be affected
o Explained the difference in user interfaces between DNS-SD and o Explained the difference in user interfaces between DNS-SD and
usual DNS operation usual DNS operation
o Provided background on why the Domain portion should be treated o Provided background on why the Domain portion should be treated
differently differently
A.6. draft-sullivan-dnssd-mdns-dns-interop-00 A.7. draft-sullivan-dnssd-mdns-dns-interop-00
Initial version. Initial version.
Author's Address Author's Address
Andrew Sullivan Andrew Sullivan
Dyn Dyn
150 Dow St. 150 Dow St.
Manchester, NH 03101 Manchester, NH 03101
U.S.A. U.S.A.
 End of changes. 11 change blocks. 
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