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RSSAC Caucus

The Caucus of DNS and root server system experts will be responsible for the essential work of the RSSAC. More information about the Caucus – including its purpose, principles, and procedures – can be reviewed here [PDF, 72 KB].

On 10 July 2014, the RSSAC appointed the initial members of the Caucus. The public Statement of Interest for every Caucus member may be viewed here.

  • Afifa Abbas
  • Joe Abley
  • Mohamed Abuabed
  • Alejandro Acosta
  • Anupam Agrawal
  • Yoshitaka Aharen
  • Mehmet Akcin
  • Jaap Akkerhuis
  • Adiel Akplogan
  • Roy Arends
  • Mohammad Abdul Awal
  • Fred Baker
  • Mohit Batra
  • Ray Bellis
  • Ramanou Biaou
  • Jack Biesiadecki
  • Rao Naveed Bin Rais
  • Marc Blanchet
  • John Bond
  • Nichole Boscia
  • Anand Buddhdev
  • Michael Casadevall
  • Jim Cassell
  • Jason Castonguay
  • Bobby Cates
  • Harish Chowdhary
  • Bruce Crabill
  • John Crain
  • João Damas
  • Kim Davies
  • Casey Deccio
  • Peter DeVries
  • Brian Dickson
  • Paul Ebersman
  • Michael Frauenhoffer
  • Kazunori Fujiwara
  • Abdalmonem Galila
  • Elise Gerich
  • Ray Gilstrap
  • Shailesh Gupta
  • Wes Hardaker
  • John Heidemann
  • Ashley Heineman
  • Paul Hoffman
  • Hiro Hotta
  • Shumon Huque
  • Geoff Huston
  • Chris Ishisoko
  • Darren Kara
  • Daniel Karrenberg
  • Howard Kash
  • Akira Kato
  • Shane Kerr
  • Ihtisham Khalid
  • Ramet Khalili
  • Hank Kilmer
  • Mallory Knodel
  • Mark Kosters
  • Dimitrii Kovalenko
  • Suresh Krishnaswamy
  • Warren Kumari
  • Pan Lanlan
  • Matt Larson
  • Dave Lawrence
  • Lars-Johan Liman
  • Peter Losher
  • Di Ma
  • Terry Manderson
  • Bill Manning
  • Jim Martin
  • Robert Martin-Legène
  • George Michaelson
  • Daniel Migault
  • Jelena Mikovic
  • Keith Mitchell
  • Paul Muchene
  • Russ Mundy
  • Jun Murai
  • Tomofumi Okubo
  • Abdulkarim Oloyede
  • Benno Overeinder
  • Colin Petrie
  • Amir Qayyum
  • Anand Raje
  • Kaveh Ranjbar
  • Brian Reid
  • Kenneth Renard
  • Karl Reuss
  • Shinta Sato
  • Yuji Sekiya
  • Arturo Servin
  • Sofia Silva Berenguer
  • Tripti Sinha
  • Mukund Sivaraman
  • Gerry Sneeringer
  • Linjian Song
  • William Sotomayor
  • Petr Špaček
  • Ryan Stephenson
  • Robert Story
  • Ondrej Sury
  • Mahdi Taghizadeh
  • Willem Toorop
  • Brad Verd
  • Mauricio Vergara Ereche
  • Paul Vixie
  • Zheng Wang
  • Wang Wei
  • Matt Weinberg
  • Duane Wessels
  • Suzanne Woolf
  • Kevin Wright
  • Zhiwei Yan
  • Dessalegn Yehuala


The RSSAC Caucus meets periodically in person at IETF meetings and ICANN meetings. Minutes from these meetings can be reviewed here.

Work Parties

This page provides an overview of work parties in the RSSAC Caucus, including a description of the effort and its current status.

Membership Committee

In November 2013, the RSSAC formed the Membership Committee to oversee the process of admitting new Caucus members. The Membership Committee consists of:

  • Matt Weinberg, Chair
  • Alejandro Acosta, Member
  • Dave Lawrence, Member
  • Brad Verd, Ex Officio Member

How to Join

To apply for membership in the RSSAC Caucus, interested applicants should submit a Statement of Interest to the RSSAC Caucus Membership Committee at

The Statement of Interest should include:

  • Name
  • Affiliation and current position
  • Relevant qualifications
  • Motivation for membership in the RSSAC Caucus
  • Indication of availability
  • Formal roles (if any) and interests in the work of RSSAC
  • Links where appropriate

By submitting your personal data, you agree that your personal data will be processed in accordance with the ICANN Privacy Policy ( ), and agree to abide by the website Terms of Service (

Points of Consideration

The RSSAC Caucus Membership Committee considers the following points when reviewing applicants. Please include details in your statement of interest about how your qualifications and experiences best align with at least some of these desired points.

DNS Community Experience

  • Participation in various community workshops and meetings, including but not limited to: ICANN meetings, IETF dns*, DNS-OARC workshops
  • Participation in relevant mailing lists

DNS Knowledge

  • Operational experience running DNS infrastructure and/or helped with a DNS-related internet draft and/or participated in the development of DNS server software or hardware
  • Specific understanding of the root server ecosystem
  • DNS protocol knowledge

Commitment to Participate

  • Available to attend or dial in to at least one RSSAC Caucus meeting per year
  • Willingness to join and participate in an RSSAC Caucus working group

Criteria for Continued Membership:

  • Participation in an RSSAC Caucus meeting/teleconference in the past two years
  • Continued desire to be on the RSSAC Caucus
Domain Name System
Internationalized Domain Name ,IDN,"IDNs are domain names that include characters used in the local representation of languages that are not written with the twenty-six letters of the basic Latin alphabet ""a-z"". An IDN can contain Latin letters with diacritical marks, as required by many European languages, or may consist of characters from non-Latin scripts such as Arabic or Chinese. Many languages also use other types of digits than the European ""0-9"". The basic Latin alphabet together with the European-Arabic digits are, for the purpose of domain names, termed ""ASCII characters"" (ASCII = American Standard Code for Information Interchange). These are also included in the broader range of ""Unicode characters"" that provides the basis for IDNs. The ""hostname rule"" requires that all domain names of the type under consideration here are stored in the DNS using only the ASCII characters listed above, with the one further addition of the hyphen ""-"". The Unicode form of an IDN therefore requires special encoding before it is entered into the DNS. The following terminology is used when distinguishing between these forms: A domain name consists of a series of ""labels"" (separated by ""dots""). The ASCII form of an IDN label is termed an ""A-label"". All operations defined in the DNS protocol use A-labels exclusively. The Unicode form, which a user expects to be displayed, is termed a ""U-label"". The difference may be illustrated with the Hindi word for ""test"" — परीका — appearing here as a U-label would (in the Devanagari script). A special form of ""ASCII compatible encoding"" (abbreviated ACE) is applied to this to produce the corresponding A-label: xn--11b5bs1di. A domain name that only includes ASCII letters, digits, and hyphens is termed an ""LDH label"". Although the definitions of A-labels and LDH-labels overlap, a name consisting exclusively of LDH labels, such as"""" is not an IDN."