Liaison Statement
To: ITU-T SG 17 Q.2/17
For Information
Source: IETF DNSEXT Working Group, Internet Area
Title: Response to LS Regarding A Decentralized Architecture for Global IP Network Name Resolution System (https://datatracker.ietf.org/liaison/882/)

The IETF would like to thank the ITU for liaison statement COM 17 – LS 93 Rev.1 – E that discuss a decentralized architecture for global IP network name resolution 
system. We would like to point out a few things related to the text.

First, the text contains a false distinction between hierarchical and decentralised architectures. The DNS is both hierarchical and decentralised. The IETF has worked on 
many similar search architectures. Different architectures for search services have been discussed in the IETF for many years: some of the initiatives have been described 
in RFCs, and others have come from IRTF Research Groups (Information Infrastructure Architecture, Internet Resource discovery, and Searchable Internet Resource Names 
are three of them).

Secondly, we welcome work done by other SDOs in this area, but want to point out the work already done in the IETF (see for example RFC's listed below).

The IETF maintains change control for the DNS protocol standards and the use of domain names in URIs, URNs, and other IETF protocols that depend on domain names. 
In particular, the DNS extensions working group (DNSEXT) is where work on the DNS protocol itself is done. That is also where expertise about the DNS exists, and where 
work that alters the architecture of host identifiers on the Internet should be done.

Any protocol modification proposals can be brought to the IETF and are subject to its regular decision process.

We look forward to continued interaction with ITU as we move through this process.


1834 Whois and Network Information Lookup Service, Whois++. J.
Gargano, K. Weiss. August 1995. (Format: TXT=14429 bytes) (Status:
INFORMATIONAL)

1835 Architecture of the WHOIS++ service. P. Deutsch, R. Schoultz, P.
Faltstrom, C. Weider. August 1995. (Format: TXT=80581 bytes) (Status:
HISTORIC)

1913 Architecture of the Whois++ Index Service. C. Weider, J. Fullton,
S. Spero. February 1996. (Format: TXT=33743 bytes) (Status: HISTORIC)

1914 How to Interact with a Whois++ Mesh. P. Faltstrom, R. Schoultz,
C. Weider. February 1996. (Format: TXT=17842 bytes) (Status:
HISTORIC)

2016 Uniform Resource Agents (URAs). L. Daigle, P. Deutsch, B. Heelan,
C. Alpaugh, M. Maclachlan. October 1996. (Format: TXT=38355 bytes)
(Status: EXPERIMENTAL)

2276 Architectural Principles of Uniform Resource Name Resolution. K.
Sollins. January 1998. (Format: TXT=64811 bytes) (Updated by RFC3401)
(Status: INFORMATIONAL)

2288 Using Existing Bibliographic Identifiers as Uniform Resource
Names. C. Lynch, C. Preston, R. Daniel. February 1998. (Format:
TXT=21628 bytes) (Status: INFORMATIONAL)

2345 Domain Names and Company Name Retrieval. J. Klensin, T. Wolf, G.
Oglesby. May 1998. (Format: TXT=29707 bytes) (Status: EXPERIMENTAL)

2517 Building Directories from DNS: Experiences from WWWSeeker. R.
Moats, R. Huber. February 1999. (Format: TXT=14001 bytes) (Status:
INFORMATIONAL)

2826 IAB Technical Comment on the Unique DNS Root. Internet
Architecture Board. May 2000. (Format: TXT=13400 bytes) (Status:
INFORMATIONAL)

3071 Reflections on the DNS, RFC 1591, and Categories of Domains. J.
Klensin. February 2001. (Format: TXT=24892 bytes) (Status:
INFORMATIONAL)

3245 The History and Context of Telephone Number Mapping (ENUM)
Operational Decisions: Informational Documents Contributed to ITU-T
Study Group 2 (SG2). J. Klensin, Ed., IAB. March 2002. (Format:
TXT=23758 bytes) (Status: INFORMATIONAL)

3305 Report from the Joint W3C/IETF URI Planning Interest Group:
Uniform Resource Identifiers (URIs), URLs, and Uniform Resource Names
(URNs): Clarifications and Recommendations. M. Mealling, Ed., R.
Denenberg, Ed.. August 2002. (Format: TXT=21793 bytes) (Status:
INFORMATIONAL)

3406 Uniform Resource Names (URN) Namespace Definition Mechanisms. L.
Daigle, D. van Gulik, R. Iannella, P. Faltstrom. October 2002.
(Format: TXT=43707 bytes) (Obsoletes RFC2611) (Also BCP0066) (Status:
BEST CURRENT PRACTICE)

3467 Role of the Domain Name System (DNS). J. Klensin. February 2003.
(Format: TXT=84570 bytes) (Status: INFORMATIONAL)