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Minutes – IANA Committee (IC) Meeting

26 May 2009 at 15:00 UTC

Committee members present: Harald Alvestrand - Chair, Raimundo Beca, Steve Crocker, and Katim Touray

Invited Committee Members Present: Thomas Narten and Suzanne Woolf

Staff members present: Doug Brent, David Conrad, Samantha Eisner, Dan Halloran, Kurt Pritz, Barbara Roseman, and Leo Vegoda


The following is a summary of discussions, actions taken and actions identified:

  • Approved minutes of last meeting by unanimous vote, no abstentions.
  • Receive staff update on status of conversations with the NRO in conjunction with creating a process for allocating the remaining IPv4 /8 networks to the
    Regional Internet Registries (RIRs) to address the potential of some
    networks having prior use associated with them. Action: Staff to continue consultation with NRO and provide NRO with paper incorporating NRO suggestions; Staff to report to committee with updates.
  • Received staff update on and discussed status of automating Root Zone Management process and potential timeline for testing. Action: Staff to continue to work through process, including obtaining an external review of design; Staff to provide committee with regular updates on implementation once available.
  • Discussed status of Root Zone signing discussions and system considerations, and received staff update on potential designs of solutions. Action: Staff to work to provide additional information and scenarios to for guidance on acceptable forms of proposed solution.
  • Discussed policy on updating glue records. Action: Staff to provide compilation of documentation of consultations.
  • Received update on current work by staff on items that were previously before the committee. Action: Staff to circulate presentation on routing diversity as delivered in Mexico City; Staff to circulate materials on protocol parameter and number resource process reviews, and the IANA glossary; and Staff to provide committee with charted update and status on items noted for committee consideration.
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""icann.org"" is not an IDN."