BS 7306:1995 Procedures for the operation of the UK scheme for the allocation of ISO DCC format OSI Network Layer addresses (including the operation of the associated UK Registration Authority)
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This British Standard sets out the procedures for the
allocation of OSI Network Layer addresses of the
ISO DCC format within the UK. Addresses in this
format may be used as OSI network-addresses, OSI
NSAP-addresses, network-entity-titles or for other
purposes as defined in Network Layer standards. In
the remainder of this British Standard, references to
formats for OSI network-addresses are to be
understood as applying equally to all such uses.
NOTE. The same formats are applicable to all the types of
Network Layer address described above. For details of the
differences of usage of addresses of these kinds, initial reference
should be made to the part of the OSI Basic Reference Model that
deals with naming and addressing, BS ISO 7498-3, to the Tutorial
on Naming and Addressing, BS ISO/IEC TR 10730, to the OSI
Network Service Definition, BS ISO/IEC 8348, and to the
Intra-Domain Routeing Protocol, BS ISO/IEC 10589.
Briefly, except where generic addressing is used:
± an OSI network-address identifies a transport-entity by
identifying the set of NSAPs that provide access to a
transport-entity;
± an OSI NSAP-address identifies a single NSAP;
± a network-entity-title identifies a network-entity (and is used
in Network Layer routeing).
Owing to differences in dates of issue, not all published Network
Layer standards may make these distinctions; in particular
`network-address' is not always distinguished from `NSAP address'.
The standard for OSI Network Layer Addressing
(BS ISO/IEC 8348 : 1993) specifies a number of
formats of OSI Network Layer address and
establishes ISO as the top-level Registration
Authority for all OSI Network Layer addresses. One
of the address formats is the ISO DCC format; and,
for that format specifically, annex A of BS
ISO/IEC 8348 : 1993 allocates a portion of the global
address space to the UK and assigns responsibility
for the sub-allocation of that portion, within the UK,
to BSI as the UK P-member of ISO. A UK
Registration Authority (UKRA) has been appointed
under the authority of the Board of BSI to administer
this allocation.
The standard defines the three component elements
of the scheme, namely:
a) the specification of the formats of the addresses
allocated: the address structure;
b) the principles of operation of the scheme and
the role of the UK Registration Authority (UKRA)
and other bodies to which responsibility for its
operation has been assigned: the administration
of the scheme;
c) the set of administrative procedures by which
allocations are requested and subsequently
controlled: the procedures.
The standard does not specify how the addresses are
to be encoded in protocol.
The standard applies to the allocation and use of all
OSI Network Layer addresses of the ISO DCC variety
allocated to the UK by ISO in its capacity as
Registration Authority for OSI Network Layer
addresses as a whole. It applies to such addresses
wherever and whenever they are used, irrespective
of the purpose or manner of their use. Therefore all
such addresses are allocated according to the
procedures set out in this standard.
Approval organizations; Data transmission; Data layout; United Kingdom; Data processing; Network layer (OSI); Coding (data conversion); Management; Addresses (data processing); Management operations; Numeric codes; Open systems interconnection
BS 7306:1995 Procedures for the operation of the UK scheme for the allocation of ISO DCC format OSI Network Layer addresses (including the operation of the associated UK Registration Authority)
