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for the Aeronautical Telecommunication Network (ATN),
Sub-volume III, Chapter 3.2.
C) both an aircraft- and ground-initiated FIS cancellation
of contracts.
Note.- The technical provisions for the ATIS application
are defzned in Doc 9705 - Manual of Technical Provisions
for the Acronauticd Telecommunication Network (ATN),
Sub-volume II, Chapter 2.4.
3.5.3.2 ATS MESSAGHEA NDLING
SERVICES (ATSMHS) APPLICATION
Note.- The ATS message handling services (ATSMNS)
application comprises two main finction~: the ATS message
service function unrl the ATN pass-through service finction.
The ATS nzessage service function enables ATS messages to be
3.5.2.3.2 OTHER FIS APPLICATIONS
(to bc developed)
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Annex 10 - Aeronautical Telecommunications Volume ZZZ
exchanged betweeh service users through the provision of e) application service element (ASE) and application
generic message services. The ATN puss-through service service object (ASO); and
function is a service offered, over the ATN, by the use of the
Dialogue Service and of the associated upper layer architec- f) control function (CF).
ture ti exchange A FTN messages formatted in IA-5 in compliance
with the provisions of Annex JO, Volume II. The
ATSMHS application includes the definition of AFTNIATN
gateways.
3.5.3.2.1 The ATN shall be capable of supporting the
following ATS message handling services (ATSMHS)
application functions:
a) ATS message service; and
b) ATN pass-through service.
Note I.- The technical provisions for the upper layer
communications service for all ATN applications, except the
ATS message service function of the ATSMHS application, are
defined in Doc 9705 - Mmual of Technical Provisions for
the Aeronautical Telecommunicarion Network (ATN),
Sub-volume IV
Note 2.- The technical provisions for the upper layer
communicutions service for the ATS message service function
of the ATSMHS application are defned in Doc 9705 -
Manual of Technical Provisions for the Aeronautical Telecommunication
Network (ATN), Sub-volume IJI, Chapter 3. I.
Note.- The technical provisions for the ATSMHS
application are defined in Doc 9705 - Manual of Technical 3.6.2 ATN Internet
Provisions for the Aero~lautical Telecommunication Network Communications Service
(Am), Sub-volume III, Chapter 3.1.
Note.- The ATN Internet communications service requirements
are applicable to the end system and intermediate
3.5 3.3 OTHER GROUND-GROUND APPLICATIONS system functional entities which together provide the ATN
Internet communications service. The ATN Internet communi-
(to be developed) cations service is provided to its user (i.e. the upper layers)
via the transport layer service inregace.
3.6.2.1 An ATN end system (ES) shall be capable of
3.6 ATN COMMUNICATION SERVICE supporting the ATN Internet including the:
REQUIREMENTS a) transport layer; and
Note.- The ATN communication service requirements
dejine the requirements for layers 3 through 6, as well as part
of layer 7, of the OSI reference model. These services take
informatioh produced by one of the individual ATN applications
and pegorm the end-to-end communication service
using standard protocols. These cornmunicution service
requirements are divided into two parts. The upper layer- commurtications
service dejnes the standards for layers 5 through
7. The Iriternet communications service defines standards for
layers 3 and 4. The requirements for layers 1 and 2 are
outside the scope of ATN SARPs.
b) network layer.
3.6.2.2 An ATN intermediate system (IS) shall support
the ATN network layer provisions as appropriate to the class
of ATN IS under consideration.
Note.- A number of diflerent classes of ATN intermediate
systems for which network layer projiles are defined are
contained in Doc 9705 - Manual of Technical Provisions for
the Aeronautical Telecommunication Network (ATN), Subvolume
V
3.6.1 Upper layer communications service 3.7 ATN NAMING AND ADDRESSING
WQUIREMENTS
3.6.1.1 The upper layer communications service shall
include the: Note.- The ATN nunzing and addressing scheme supports
the principles of unambiguous ident$cation of information
a) session layer; objects and address standardization.
b) presentation layer: 3.7.1 The ATN shall provide provisions for application
entity naming.
c) application entity structure;
3.7.2 The ATN shall provide provisions fox network and
d) association control service element (ACSE); transport addressing.
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Annex 10 - Aeronautical Telecommunications
Note.- The technicalprovisions for ATNapplication entity
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