1、BRITISH STANDARDBS ISO 17355:2007Space data and information transfer systems CCSDS file delivery protocolICS 49.140g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g4
2、3g55g3g47g36g58BS ISO 17355:2007This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 December 2007 BSI 2007ISBN 978 0 580 56938 8National forewordThis British Standard is the UK implementation of ISO 17355:2007. It supersedes BS ISO 17355:2004
3、which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee ACE/68, Space systems and operations.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provis
4、ions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments issued since publicationAmd. No. Date CommentsReference numberISO 17355:2007(E)INTERNATIONAL STANDARD ISO17355Third edition2007-05-15Space
5、 data and information transfer systems CCSDS file delivery protocol Systmes de transfert des informations et donnes spatiales Protocole CCSDS de livraison de fichiers BS ISO 17355:2007ii iiiForeword ISO (the International Organization for Standardization) is a worldwide federation of national standa
6、rds bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organ
7、izations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given i
8、n the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 %
9、 of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 17355 was prepared by the Consultative Committee for Space
10、Data Systems (CCSDS) (as CCSDS 727.0-B-3, June 2005) and was adopted (without modifications except those stated in Clause 2 of this International Standard) by Technical Committee ISO/TC 20, Aircraft and space vehicles, Subcommittee SC 13, Space data and information transfer systems. This third editi
11、on cancels and replaces the second edition (ISO 17355:2004), which has been technically revised. BS ISO 17355:2007blank1Space data and information transfer systems CCSDS file delivery protocol 1 Scope This International Standard defines a CCSDS file delivery protocol (CFDP) and associated service fo
12、r application in the space environment. It is intended for use over the current and envisaged packet delivery services used in the space environment, including CCSDS conventional packet telecommand; CCSDS conventional packet telemetry; CCSDS advanced orbiting systems (AOS) path service. It may also
13、operate over a wide variety of ground network services, including those specified by the CCSDS for cross-support purposes. The protocol operates in the space-to-ground, ground-to-space, and space-to-space directions of transfer. It may be initiated by the file sending or receiving entity. In the int
14、erests of interoperability, protocol elements are included for generalized forms of standard file manipulation operations based on assumptions of a common model for a filestore, or medium used to store files. It is recognized, however, that the precise nature and capabilities of filestore management
15、 systems are operating-system dependent and, for that reason, the protocol assumes a virtual filestore and associated services that an implementation must map to the capabilities of the actual filestore used. The scope and field of application are furthermore detailed in subclauses 1.2 and 1.3 of th
16、e enclosed CCSDS publication. 2 Requirements Requirements are the technical recommendations made in the following publication (reproduced on the following pages), which is adopted as an International Standard: CCSDS 727.0-B-3, June 2005, CCSDS file delivery protocol (CFDP). For the purposes of inter
17、national standardization, the modifications outlined below shall apply to the specific clauses and paragraphs of publication CCSDS 727.0-B-3. Pages i to v This part is information which is relevant to the CCSDS publication only. Page 1-5 Add the following information to the reference indicated: 1 Do
18、cument CCSDS 732.0-B-1, September 2003, is equivalent to ISO 22666:2005. 2 Document CCSDS 132.0-B-1, September 2003, is equivalent to ISO 22645:2005. BS ISO 17355:20072 3 Document CCSDS 133.0-B-1, September 2003, is equivalent to ISO 22646:2005. 4 Document CCSDS 232.0-B-1, September 2003, is equival
19、ent to ISO 22664:2005. 3 Revision of publication CCSDS 727.0-B-3 It has been agreed with the Consultative Committee for Space Data Systems that Subcommittee ISO/TC 20/SC 13 will be consulted in the event of any revision or amendment of publication CCSDS 727.0-B-3. To this end, NASA will act as a lia
20、ison body between CCSDS and ISO. BS ISO 17355:2007Recommendation for Space Data System Standards CCSDS FILE DELIVERY PROTOCOL (CFDP) RECOMMENDED STANDARD CCSDS 727.0-B-3 BLUE BOOK June 2005 BS ISO 17355:2007(Blank page) CCSDS RECOMMENDED STANDARD FOR CCSDS FILE DELIVERY PROTOCOL (CFDP) CCSDS 727.0-B
21、-3 Page i June 2005 AUTHORITY Issue: Recommended Standard, Issue 3 Date: June 2005 Location: Not Applicable This document has been approved for publication by the Management Council of the Consultative Committee for Space Data Systems (CCSDS) and represents the consensus technical agreement of the p
22、articipating CCSDS Member Agencies. The procedure for review and authorization of CCSDS Recommendations is detailed in the reference A1, and the record of Agency participation in the authorization of this document can be obtained from the CCSDS Secretariat at the address below. This Recommendation i
23、s published and maintained by: CCSDS Secretariat Office of Space Communication (Code M-3) National Aeronautics and Space Administration Washington, DC 20546, USA BS ISO 17355:2007CCSDS RECOMMENDED STANDARD FOR CCSDS FILE DELIVERY PROTOCOL (CFDP) CCSDS 727.0-B-3 Page ii June 2005 STATEMENT OF INTENT
24、The Consultative Committee for Space Data Systems (CCSDS) is an organization officially established by the management of its members. The Committee meets periodically to address data systems problems that are common to all participants, and to formulate sound technical solutions to these problems. I
25、nasmuch as participation in the CCSDS is completely voluntary, the results of Committee actions are termed Recommended Standards and are not considered binding on any Agency. This Recommended Standard is issued by, and represents the consensus of, the CCSDS members. Endorsement of this Recommendatio
26、n is entirely voluntary. Endorsement, however, indicates the following understandings: o Whenever a member establishes a CCSDS-related standard, this standard will be in accord with the relevant Recommended Standard. Establishing such a standard does not preclude other provisions which a member may
27、develop. o Whenever a member establishes a CCSDS-related standard, that member will provide other CCSDS members with the following information: - The standard itself. - The anticipated date of initial operational capability. - The anticipated duration of operational service. o Specific service arran
28、gements shall be made via memoranda of agreement. Neither this Recommended Standard nor any ensuing standard is a substitute for a memorandum of agreement. No later than five years from its date of issuance, this Recommended Standard will be reviewed by the CCSDS to determine whether it should: (1)
29、remain in effect without change; (2) be changed to reflect the impact of new technologies, new requirements, or new directions; or (3) be retired or canceled. In those instances when a new version of a Recommended Standard is issued, existing CCSDS-related member standards and implementations are no
30、t negated or deemed to be non-CCSDS compatible. It is the responsibility of each member to determine when such standards or implementations are to be modified. Each member is, however, strongly encouraged to direct planning for its new standards and implementations towards the later version of the R
31、ecommended Standard. BS ISO 17355:2007CCSDS RECOMMENDED STANDARD FOR CCSDS FILE DELIVERY PROTOCOL (CFDP) CCSDS 727.0-B-3 Page iii June 2005 FOREWORD Until relatively recently the typical storage medium for spacecraft has been the tape recorder, a complex device offering limited data storage and data
32、 access. The use of this type of storage has typically been limited to the recording and subsequent dump to the ground of telemetry data. Manipulation from the ground has required significant human intervention and used ad hoc, privately developed protocols. The introduction of solid state mass memo
33、ry providing gigabytes of storage with random access opens up a whole new ethos of spacecraft operation where much of the routine traffic to and from the spacecraft will be in the form of files. Furthermore, because of the random access nature of the onboard storage medium, it becomes possible to re
34、peat transmission of data lost on the link and thus guarantee delivery of critical information. To exploit the potential advantages of onboard mass memory, protocol support is required to provide a standard means to move data to and from the onboard storage medium in the form of files. While the onb
35、oard storage medium has rapidly evolved, the essential constraints of space missions remain: limited systems resources in terms of computational power and memory capacities; environmental restrictions including noisy, bandwidth limited, asymmetrical, and interrupted communications links, some with v
36、ery long propagation delay; varying user needs including a requirement for early access to transferred data regardless of its quality. In view of these constraints, it is clear that there is a need for a file delivery service capable of transferring files to and from mass memory located in the space
37、 segment. Such a capability must not only operate under the constraints associated with space data communication, but it must also be applicable to the diverse range of mission configurations ranging from single low earth orbiting spacecraft to complex networks of relays, orbiters, and landers. Thro
38、ugh the process of normal evolution, it is expected that expansion, deletion, or modification of this document may occur. This Recommendation is therefore subject to CCSDS document management and change control procedures which are defined in reference A1. Current versions of CCSDS documents are mai
39、ntained at the CCSDS Web site: http:/www.ccsds.org/ Questions relating to the contents or status of this document should be addressed to the CCSDS Secretariat at the address indicated on page i. BS ISO 17355:2007CCSDS RECOMMENDED STANDARD FOR CCSDS FILE DELIVERY PROTOCOL (CFDP) CCSDS 727.0-B-3 Page
40、iv June 2005 At time of publication, the active Member and Observer Agencies of the CCSDS were: Member Agencies Agenzia Spaziale Italiana (ASI)/Italy. British National Space Centre (BNSC)/United Kingdom. Canadian Space Agency (CSA)/Canada. Centre National dEtudes Spatiales (CNES)/France. Deutsches Z
41、entrum fr Luft- und Raumfahrt e.V. (DLR)/Germany. European Space Agency (ESA)/Europe. Federal Space Agency (Roskosmos)/Russian Federation. Instituto Nacional de Pesquisas Espaciais (INPE)/Brazil. Japan Aerospace Exploration Agency (JAXA)/Japan. National Aeronautics and Space Administration (NASA)/US
42、A. Observer Agencies Austrian Space Agency (ASA)/Austria. Belgian Federal Science Policy Office (BFSPO)/Belgium. Central Research Institute of Machine Building (TsNIIMash)/Russian Federation. Centro Tecnico Aeroespacial (CTA)/Brazil. Chinese Academy of Space Technology (CAST)/China. Commonwealth Sci
43、entific and Industrial Research Organization (CSIRO)/Australia. Danish Space Research Institute (DSRI)/Denmark. European Organization for the Exploitation of Meteorological Satellites (EUMETSAT)/Europe. European Telecommunications Satellite Organization (EUTELSAT)/Europe. Hellenic National Space Com
44、mittee (HNSC)/Greece. Indian Space Research Organization (ISRO)/India. Institute of Space Research (IKI)/Russian Federation. KFKI Research Institute for Particle CCSDS conventional packet telemetry; CCSDS Advanced Orbiting Systems (AOS) Path service. In may also operate over a wide variety of ground
45、 network services including those specified by the CCSDS for cross-support purposes. The protocol operates in the space-to-ground, ground-to-space, and space-to-space directions of transfer. It may be initiated by the file sending or receiving entity. In the interests of interoperability, protocol e
46、lements are included for generalized forms of standard file manipulation operations based on assumptions of a common model for a filestore, or medium used to store files. It is recognized, however, that the precise nature and capabilities of filestore management systems are operating-system dependen
47、t and, for that reason, the protocol assumes a virtual filestore and associated services that an implementation must map to the capabilities of the actual filestore used. 1.2 APPLICABILITY This Recommendation specifies a protocol and associated services that are applicable to space missions with con
48、tinuous duplex contact, intermittent duplex contact, asymmetrical time-disjunct contact, and simplex contact. 1.3 CONVENTIONS AND DEFINITIONS 1.3.1 BIT NUMBERING CONVENTION AND NOMENCLATURE In this document, the following convention is used to identify each bit in an N-bit field. The first bit in th
49、e field to be transmitted (i.e., the most left justified when drawing a figure) is defined to be Bit 0; the following bit is defined to be Bit 1 and so on up to Bit N1. When the field is used to express a binary value (such as a counter), the Most Significant Bit (MSB) shall be the first transmitted bit of the field, i.e., Bit 0. BS ISO 17355:2007CCSDS RECOMMENDED STANDARD FOR CCSDS FILE DELIVERY PROTOCOL (CFDP) CCSDS 727.0-B-3 Page 1-2 June 2005 N-BIT DATA FIELDBIT 0 BIT N-1FIRST BIT TRANSM
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