Installing and Administering OSI Transport Services

Chapter 1 57
HP OTS/9000 Resources
Current NSAP Allocation Formats
Telecommunications Customer Requirements Office U. S. General
Services Administration IRMS Office of Telecommunications Services
18th & F Sts. N.W. Washington, D. C., 20405
A more complete discussion of this addressing format may be found in
U.S. Government OSI Profile Specification Version 2.
This document is produced by the National Institute of Standards and
Technology, USA (NIST). It should be available through Omnicom or
NIST.
United Kingdom GOSIP
Figure 1-15
The United Kingdom GOSIP program, like ANSI, has chosen the Data
Country Code format for their IDP. GDP values are provided by the
Central Computer and Telecommunications Agency (CCTA), and
functions in a similar fashion as U.S. GOSIP’s Admin field. The GDSP is
undefined and is left up to the controlling organization (identified by the
GDP) as to its structure. U.K. GOSIP recommends that the following
fields be defined as the rightmost portion of the GDSP:
Figure 1-16
010104
IDP
DSP
AP
826F
GDP
PAP
39
GDSP
GDP Government Domain Part (one octet)
GDSP Government Domain Specific Part (up to 11 octets)
Subnetwork Address
Subnet ID
NSel
0 - 6 octets
2 octets
1 octet