ISO/IEC TR 10171:1994

TECHNICAL
ISO/IEC
REPORT
TR 10171
First edition
1994-07-15
Information technology -
Telecommunications and information
exchange between Systems - List of
Standard data link layer protocols that
utilize high-level data link control (HDLC)
classes of procedures and list of
standardized XID format identifiers and
private Parameter set identification values
Technologies de I’informa tion - Telecommunica tions et echange
d’information entre systemes - Liste de protocoles normalises pour Ia
couche liaison de donnees employant des classes de procedures de
commande de liaison de donnees a haut niveau (HDLC) et liste
d’identifica teurs normalises de forma t XID et jeu prive de parametres de
valeurs d ‘iden tifica tion
Reference number
ISO/IEC TR 10171 :1994(E)

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ISO/IEC TR 10171:1994(E)
Contents
Page
. . .
111
Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .~.
iv
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
3 Abbreviations
2
4 List of Data Link Layer protocols using HDLC classes of procedures . . . . . . . . . . . . . . . .
5 Standardized XID information field format identifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
6 Parameter identifiers for private Parameter negotiation subfields . . . . . . . . . . . . . . . . . . . . . . . . . 2
0 ISO/IEC 1994
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ISO/IEC Copyright Office l Case postale 56 l CH- 12 11 Geneve 20 l Switzerland
Printed in Switzerland

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0 ISO/IEC ISO/IEC TR 10171:1994(E)
Foreword
ISO (the International Organization for Standardization) and IEC (the International
Electrotechnical Commission) form the specialized System for worldwide standardiza-
tion. National bodies that are members of ISO or IEC participate in the development of
International Standards through technical committees established by the respective
organization to deal with particular Felds of technical activity. ISO and IEC technical
committees collaborate in fields of mutual interest. Other international organizations,
govemmental and non-governmental, in liaison with ISO and IEC, also take part in the
work.
In the field of information technology, ISO and IEC have established a joint technical
committee, ISO/IEC JTC 1.
The main task of technical committees is to prepare International Standards. In excep-
tional circumstances a technical committee may propose the publication of a Technical
Report of one of the following types:
- type 1, when the required support cannot be obtained for the publication of an
International Standard, despite repeated efforts;
- type 2, when the subject is still under technical development or where for any
other reason there is the future but not immediate possibility of an agreement on an
International Standard;
- type 3, when a technical committee has collected data of a different kind from that
which is normally published as an International Standard (“state of the art”, for
example).
Technical Reports of types 1 and 2 are subject to review within three years of
publication, to decide whether they tan be transformed into International Standards.
Technical Reports of type 3 do not necessarily have to be reviewed until the data they
provide are considered to be no longer valid or useful.
ISOAEC TR 10171, which is a Technical Report of type 3, was prepared by Joint
Technical Committee ISO/IEC JTC 1, Znformution technology, Subcommittee SC 6,
Telecommunications and information exchunge between systems.
. . .
111

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0 ISO/IEC
ISO/IEC TR 10171:1994(E)
Introduction
The HDLC classes of procedures have been utilized in a number of International Standards and ITU-T (formally
CCITT) Recommendations as the basis for specific data link layer protocol specifications. This Technical Report
provides an indication of the class of procedures and optional fknctions used in the realization of each designated data
link layer protocol. The protocols covered include:
l ISO/IEC 7776
l ISO/IEC 8802-2 LLC type 1 and type 2
l ITU-T Recommendation G.764
l ITU-T Recommendation 4.921 (I.441) LAPD
l ITU-T Recommendation T.90
l ITU-T Recommendation V.42
l ITU-T Recommendation V. 120
l ITU-T Recommendations X.2YX.32
a ITU-T Recommendation X.25 LAPB
l ITU-T Recommendation X.75 SLP
Table 1 in clause 4 of this Technical Report lists these protocols, indicates the basic class of procedures used, and
identifies the Standard optional functions used to realize the specific data link layer protocol. The footnotes following
table 1 provide additional explanation conceming the application of the optional fiwtion identified.
As additional Standard usages of the HDLC classes of procedures are identified, this Technical Report will be updated.
The Technical Report will serve as the repository of record of applications of the HDLC concepts, principles and
classes of procedures in the realization of Standard data link layer protocols.
This Technical Report also serves as the repository of record for the XID formst identifiers and private Parameter set
identifiers defined in ISO/IEC 8885, as amended.
iv

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ISO/IEC TR 10171:1994(E)
TECHNICAL REPORT 0 ISO/IEC
Telecommunications and information exchange
Information technology -
List of Standard data link layer protocols that utilize high-
between Systems -
level data link control (HDLC) classes of procedures and list of standardized
XID format identifiers and private Parameter set identification values
KU-T Recommendation G.764, Voice packetization -
1 Scope
Packetized voiceprotocol
This Technical Report lists the Standard data link layer
protocols that utilize HDLC based classes of procedures
ITU-T Recommendation 4.92 1 (1.441), ISDN user-
as defined in ISO/IEC 7809 in their realization. The
network interface - Data link layer spec$cation
list indicates the basic repertoire (i.e. class of
procedures) used plus the optional functions employed.
ITU-T Recommendation T.90, Characteristics and
protocol for terminals for telematic Services in ISDN
This Technical Report lists the standardized XID
information feld format identifiers. The list identifies
ITU-T Recommendation V.42, Error-correcting
the Source document as well as describing the
procedures for DCEs using asynchronous to
characteristics of the information provided.
synchronous conversion
This Technical Report lists the standardized private
ITU-T Recommendation V.42bis, Data Compression
Parameter set identifkation values, as well as indicating
procedures for DCEs using error correctingprocedures.
the Source and use of the private Parameter
ITU-T Recommendation V.120, Support by an ISDIV
Note - With the exception of ISO 7776 and ITU-T X.25
of data terminal equipment with V-Sen-es tpe interfaces
EAPB, which are designed to be complementary, the proto-
with Provision for statistical multiplexing
cols listed do not interwork. (There are differentes in the
usage of certain functions by different protocols.)
ITU-T Recornmendation X.25, Interface between data
terminal equipment (DTE) and data circuit-terminating
equipment (DCE) for terminals operating in thepacket
2 References mode and connected to public data networks by
dedicated circuit
ISO 7776:1986, Information processing Systems - Data
communications - High-level data link control procedures
ITU-T Recommendation X.32, Interface between data
- Description of the X.25 LAPB-compatible DTE data link
terminal equipment @TE) and data circuit-terminating
procedures.
equipment (DCE) for terminals operating in thepacket
mode and accessing a packet switched public data
ISOAEC 7809: 1993, Information technology - Telecom-
network through a public switched telephone network
munications and information exchange between systems -
or a circuit switchedpublic data network
High-level data link control (HDLC) procedures - Classes
of procedures.
ITU-T Recommendation X.75, TerminaZ and transit
cal1 control procedures and data transfer System on
ISO 8802-2: 1989, Infonnution processing systems - Local
international circuits between packet-switched data
area networks - Part 2: Logical link control.
networks: Link layer procedures between signalling
terminals
ISOAEC 8885: 1993, Information technology - Telecom-
munications and inforrnation exchunge between systems -
Note - Further study is required to determine the
High-level data link control (HDLC) procedures - Gen-
applicability of including ITU-T Recommendations T.30,
eral purpose XID frame information jield content and T.70, T.71. and Signalling System No.7 Link Layer
Recomm
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