A.2 Data Country Code NSAPs
NSAPs from the Data Country Code (DCC) subdomain will also be common
in the international Internet. Currently, there is a draft proposed
American National Standard (dpANS) in the U.S. for the DSP structure
under DCC=840 [1]. Subsequent to an upcoming ANSI X3 Committee ballot,
the dpANS will be distributed for public comment.
In the dpANS, the DSP structure is identical to that specified in
GOSIP Version 2, with the Administrative Authority identifier replaced
by the numeric form of the ANSI-registered organization name, as shown
in Figure 4.
Referring to Figure 4, when the value of the AFI is 39, the IDI
denotes an ISO DCC and the abstract syntax of the DSP is binary
octets. The value of the IDI for the U.S. is 840, the three-digit
numeric code for the United States under ISO3166 [9]. The numeric
form of organization name is analogous to the Administrative Authority
identifier in the GOSIP Version 2 NSAP.
______________
!<--_IDP_-->_!_____________________________________
!AFI_!__IDI__!____________<--_DSP_-->_____________!
!_39_!__840__!DFI_!_ORG_!Rsvd_!RD_!Area_!_ID_!Sel_!
octets !_1__!___2___!_1__!__3__!_2___!_2_!__2__!_6__!_1__!
IDP Initial Domain Part
AFI Authority and Format Identifier
IDI Initial Domain Identifier
DSP Domain Specific Part
DFI DSP Format Identifier
ORG Organization Name (numeric form)
Rsvd Reserved
RD Routing Domain Identifier
Area Area Identifier
ID System Identifier
SEL NSAP Selector
Figure 4: NSAP format for DCC=840 as proposed in ANSI X3S3.3.
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A.2.1 Application for Numeric Organization Name
The procedures for registration of numeric organization names in
the U.S. have been defined and are operational. To register a
numeric organization name, the applicant must submit a request for
registration and the $1,000 (U.S.) fee to the registration authority,
the American National Standards Institute (ANSI). ANSI will register a
numeric value, along with the information supplied for registration,
in the registration database. The registration information will be
sent to the applicant within ten working days. The values for numeric
organization names are assigned beginning at 113527.
The application form for registering a numeric organization name may
be obtained from the ANSI Registration Coordinator at the following
address:
Registration Coordinator
American National Standards Institute
11 West 42nd Street
New York, NY 10036
+1 212 642 4976 (tel)
+1 212 398 0023 (fax)
Once an organization has registered with ANSI, it becomes a registra-
tion authority itself. In turn, it may delegate registration authority
to routing domains, and these may make further delegations, for in-
stance, from routing domains to areas. Again, the responsibilities of
each Registration Authority are to assure that NSAPs within the domain
are unambiguous and to advertise them as applicable.
A.3 Summary of Administrative Requirements
NSAPs must be globally unique, and an organization may assure this
uniqueness for OSI addresses in two ways. The organization may
apply to GSA for an Administrative Authority identifier. Although
registration of Administrative Authority identifiers by GSA primarily
serves U.S. Government agencies, requests for non-Government and
non-U.S. organizations will be considered on a case-by-case basis.
Alternatively, the organization may apply to ANSI for a numeric
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RFC1237 Guidelines for OSI NSAP Allocation in the Internet July 1991
organization name. In either case, the organization becomes the
registration authority for its domain and can register NSAPs or
delegate the authority to do so.
In the case of GOSIP Version 2 NSAPs, the complete DSP structure is
given in GOSIP Version 2. For ANSI DCC-based NSAPs, there is a draft
proposed American National Standard that specifies the DSP structure
under DCC=840. The dpANS specifies a DSP structure that is identical
to that specified in GOSIP Version 2.
References
[1] ANSI. American National Standard for the Structure and Semantics
of the Domain Specific Part (DSP) of the OSI Network Service
Access Point (NSAP) Address. Draft Proposed American National
Standard, 1991 (pending final approval by ANSI).
[2] Tim Boland. Government Open Systems Interconnection Profile
Users' Guide Version 2 [DRAFT]. NIST Special Publication,
National Institute of Standards and Technology, Computer Systems
Laboratory, Gaithersburg, MD, June 1991.
[3] ECMA. Inter-Domain Routeing. Technical Report 50, ISO/IEC JTC 1,
Switzerland, 1989.
[4] GOSIP Advanced Requirements Group. Government Open Systems
Interconnection Profile (GOSIP) Version 2. Federal Information
Processing Standard 146-1, U.S. Department of Commerce, National
Institute of Standards and Technology, Gaithersburg, MD, April
1991.
[5] Christine Hemrick. The OSI Network Layer Addressing Scheme, Its
Implications, and Considerations for Implementation. NTIA Report
85-186, U.S. Department of Commerce, National Telecommunications
and Information Administration, 1985.
[6] ISO. Addendum to the Network Service Definition Covering Network
Layer Addressing. RFC941,Network Working Group, April 1985.
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RFC1237 Guidelines for OSI NSAP Allocation in the Internet July 1991
[7] ISO. End System to Intermediate System Routing Exchange Protocol
for use in conjunction with ISO 8473. RFC995, Network Working
Group, April 1986.
[8] ISO. Final Text of DIS 8473, Protocol for Providing the
Connectionless-mode Network Service. RFC994, Network Working
Group, March 1986.
[9] ISO/IEC. Codes for the Representation of Names of Countries.
International Standard 3166, ISO/IEC JTC 1, Switzerland, 1984.
[10] ISO/IEC. Data Interchange - Structures for the Identification
of Organization. International Standard 6523, ISO/IEC JTC 1,
Switzerland, 1984.
[11] ISO/IEC. Information Processing Systems - Open Systems Intercon-
nection- Basic Reference Model. International Standard 7498,
ISO/IEC JTC 1, Switzerland, 1984.
[12] ISO/IEC. Protocol for Providing the Connectionless-mode Network
Service. International Standard 8473, ISO/IEC JTC 1, Switzerland,
1986.
[13] ISO/IEC. End System to Intermediate System Routing Exchange
Protocol for use in Conjunction with the Protocol for the Provi-
sion of the Connectionless-mode Network Service. International
Standard 9542, ISO/IEC JTC 1, Switzerland, 1987.
[14] ISO/IEC. Information Processing Systems -- Data Communications
-- Network Service Definition Addendum 2: Network Layer Address-
ing. International Standard 8348/Addendum 2, ISO/IEC JTC 1,
Switzerland, 1988.
[15] ISO/IEC. Information Processing Systems - OSI Reference Model
- Part3: Naming and Addressing. Draft International Standard
7498-3, ISO/IEC JTC 1, Switzerland, March 1989.
[16] ISO/IEC. Information Technology - Telecommunications and
Information Exchange Between Systems - OSI Routeing Framework.
Technical Report 9575, ISO/IEC JTC 1, Switzerland, 1989.
[17] ISO/IEC. Intermediate System to Intermediate System Intra-Domain
Routeing Exchange Protocol for use in Conjunction with the
Colella, Gardner, & Callon [Page 48]
RFC1237 Guidelines for OSI NSAP Allocation in the Internet July 1991
Protocol for Providing the Connectionless-mode Network Service
(ISO 8473). Draft International Standard 10589, ISO/IEC JTC 1,
Switzerland, November 1990.
[18] K. Loughheed and Y. Rekhter. A Border Gateway Protocol (BGP).
RFC1105, Network Working Group, 1989.
[19] K. Loughheed and Y. Rekhter. A Border Router Protocol(BRP).
Draft, Network Working Group, February 1990.
[20] ASC X3S3.3. Intermediate System to Intermediate System Inter-
Domain Routeing Exchange Protocol. Working Document 90-216, ANSI,
New York, July 1990.
Colella, Gardner, & Callon [Page 49]