SIST ETS 300 217-1 E1:2003

• Abstract:

  DE/NA-053201-1

• Status: Published
• Publication Date: 30-Nov-2003
• ICS: 33.040.40 - Data communication networks
• Technical Committee: SS EIT - Technical Board for the electrotechnical, information technology and telecommunications fields
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Dec-2003
• Due Date: 01-Dec-2003
• Completion Date: 01-Dec-2003
• Ref Project: ETSI ETS 300 217-1 ed.1 (1992-12) - Network Aspects (NA); Connectionless Broadband Data Service (CBDS); Part 1: Overview

Overview

SIST ETS 300 217-1 E1:2003 is the first part of a four-part European Telecommunication Standard prepared by the Slovenski inštitut za standardizacijo (SIST) and developed under the guidance of the European Telecommunications Standards Institute (ETSI) Network Aspects (NA) Technical Committee. This standard provides a comprehensive overview of the Connectionless Broadband Data Service (CBDS), focusing on the stage 1 service definition according to CCITT Recommendation I.130. It details the foundational characteristics for CBDS, intended primarily for interconnection between Local Area Networks (LANs) and Metropolitan Area Networks (MANs), utilizing underlying MAN or Asynchronous Transfer Mode (ATM) based networks.

CBDS is characterized by its connectionless mode: protocol data units (PDUs) are independently transmitted without establishing a dedicated end-to-end path. This design supports dynamic, scalable, and efficient broadband data communication in both enterprise and metropolitan network environments.

Key Topics

• Connectionless Service Model: Each Protocol Data Unit (PDU) is sent independently, offering flexibility and efficiency for broadband data transfers without prior connection setup.
• Network Technologies: CBDS is suitable for both MAN-technology-based and ATM-based networks, providing broad applicability in various data communication environments.
• Service Interfaces: The standard identifies three main interfaces through which the service can be offered:
  • User MAN Interface (UMI)
  • User Specific Interface (USI)
  • User Network Interface (UNI)
• Addressing Principles: Specifies individual and group address formats based on CCITT E.164 numbering, ensuring compatibility and proper network administration across diverse systems.
• Quality of Service (QOS): Defines key QOS parameters such as data rates, delays, duplication, and error rates, catering to reliability and performance requirements for high-speed data communications.
• Stage 1 Service Description: Outlines the user-focused perspective, describing the service attributes and overall capabilities from an end-user standpoint.

Applications

SIST ETS 300 217-1 E1:2003 is essential for organizations and network providers looking to design, implement, or assess broadband data transfer solutions in a connectionless architecture. Common application areas include:

• Enterprise Network Integration: Providing reliable, high-bandwidth communication between geographically distributed LANs within a city or region.
• Metropolitan Area Networking: Enabling scalable broadband services over MANs, suitable for large institutions, campuses, or municipal networks.
• ATM Network Deployments: Facilitating seamless connectionless services over ATM infrastructure for backbone and core network applications.
• Supporting Multicast Data Distribution: Utilizing group addressing for efficient data dissemination to multiple endpoints.
• Quality of Service Assurance: Assisting service providers in meeting precise QOS targets for demanding broadband applications.

Related Standards

For a holistic understanding and implementation of CBDS, the following related standards should also be considered:

• ETS 300 217-2: Connectionless Broadband Data Service - Basic bearer service definition
• ETS 300 217-3: CBDS - Supplementary services definition
• ETS 300 217-4: CBDS - Address screening supplementary service
• ETS 300 211: Network Aspects; Metropolitan Area Network (MAN) Principles and Architecture
• CCITT Recommendations: E.164 (Numbering plan for the ISDN era), I.413 (B-ISDN user-network interface), I.324 (ISDN network architecture)
• ISO/IEC 8802 Series: LAN architecture and physical layer specifications

SIST ETS 300 217-1 E1:2003 provides the essential groundwork for a robust, interoperable connectionless broadband data service, facilitating advanced data communication across a wide range of network architectures. Its guidance ensures network efficiency, compatibility, and performance in today’s evolving digital landscape.

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Omrežni vidiki (NA) – Nepovezavna širokopasovna podatkovna storitev (CBDS) – 1. del: PregledNetwork Aspects (NA); Connectionless Broadband Data Service (CBDS); Part 1: Overview33.040.40Podatkovna komunikacijska omrežjaData communication networksICS:Ta slovenski standard je istoveten z:ETS 300 217-1 Edition 1SIST ETS 300 217-1 E1:2003en01-december-2003SIST ETS 300 217-1 E1:2003SLOVENSKI
STANDARD
EUROPEANETS 300 217-1TELECOMMUNICATIONDecember 1992STANDARDSource: ETSI TC-NAReference: DE/NA-053201-1ICS:33.040Key words:Network, CBDSNetwork Aspects (NA);Connectionless Broadband Data Service (CBDS)Part 1: OverviewETSIEuropean Telecommunications Standards InstituteETSI SecretariatPostal address: F-06921 Sophia Antipolis CEDEX - FRANCEOffice address: 650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCEX.400: c=fr, a=atlas, p=etsi, s=secretariat - Internet: [e-mail].: [phone] - Fax: [phone]Copyright Notification: No part may be reproduced except as authorized by written permission. The copyright and theforegoing restriction extend to reproduction in all media.© European Telecommunications Standards Institute 1992. All rights reserved.SIST ETS 300 217-1 E1:2003

Page 2ETS 300 217-1: December 1992Whilst every care has been taken in the preparation and publication of this document, errors in content,typographical or otherwise, may occur. If you have comments concerning its accuracy, please write to"ETSI Editing and Committee Support Dept." at the address shown on the title page.SIST ETS 300 217-1 E1:2003

Page 3ETS 300 217-1: December 1992ContentsForeword.51Scope.72Normative references.73Definitions and abbreviations.83.1Definitions.83.2Abbreviations.124Reference configuration.135Subdivision of the service description.136Addressing principles.156.1Addressing principles for the UMI and UNI interfaces.156.1.1Individual/group addresses.156.1.2Address type.156.1.3Allocation of addresses.156.2Addressing principles for the USI.15Annex A (informative):Bibliography.16History.17SIST ETS 300 217-1 E1:2003

Page 4ETS 300 217-1: December 1992Blank pageSIST ETS 300 217-1 E1:2003

Page 5ETS 300 217-1: December 1992ForewordThis part of European Telecommunication Standard (ETS) 300 217 has been prepared by the NetworkAspects (NA) Technical Committee of the European Telecommunications Standards Institute (ETSI).According to CCITT Recommendation I.130, the following three level structure is used to describe thecharacterisation of telecommunication services:-Stage 1: is an overall service description, from the user's standpoint;-Stage 2: identifies the functional capabilities and information flows needed to support the servicedescribed in stage 1;-Stage 3: defines the signalling system protocols and switching functions needed to implement theservice described in stage 1.This ETS details the stage 1 aspects for the Connectionless Broadband Data Service (CBDS).This part constitutes Part 1 of the 4 part ETS on the CBDS, and gives a general overview of the service.A list of informative references, used throughout this document, is given in Annex A.SIST ETS 300 217-1 E1:2003

Page 6ETS 300 217-1: December 1992Blank pageSIST ETS 300 217-1 E1:2003

Page 7ETS 300 217-1: December 19921ScopeThis part of European Telecommunication Standard (ETS) defines the stage 1 of the ConnectionlessBroadband Data Service (CBDS) which can be provided by Metropolitan Area Networks (MANs) (seeETS 300 211 [6]) and an Asynchronous Transfer Mode (ATM) based network. Whilst this bearer servicecategory is aiming primarily at Local Area Network (LAN) interconnections (see ISO/IEC DIS 8802-1 [16]),other uses are also envisaged.This 4 part ETS defines a CBDS which is independent of the layers above. The bearer service categorycould be provided by any network but it is particularly suited for MANs and an ATM based network. EachProtocol Data Unit (PDU) is transferred transparently and separately without the establishment of an end-to-end connection, with no guarantee of delivery and no acknowledgement of delivery. However, theunderlying network provides a highly reliable service which is reflected by the defined Quality of Service(QOS) parameters.If certain applications require a better QOS, higher layer protocols, e.g. connection-oriented transportprotocols, will perform additional functions. Since the network provides a transparent transfer of data, atleast in principle, any higher layer protocol may be employed. The inherent delay of long distancecommunications could degrade end to end performance as seen by the user if end to end communicationprotocols are not adequate.This 4 part ETS contains a stage 1 description of the CBDS, according to CCITT Recommendation I.130,which contains a general description and a list of communication attributes. However, this document goesbeyond a stage 1 description where additional information seems to be required for an earlyimplementation of the CBDS.This part, Part 1, contains an overview of the CBDS. The description of the basic bearer service categoryis given in Part 2 of this ETS, ETS 300 217-2 [12]. Part 3, ETS 300 217-3 [13] defines the supplementaryservices. Part 4, ETS 300 217-4 [14] describes the address screening supplementary service.2Normative referencesThis ETS incorporates, by dated or undated reference, provisions from other publications. Thesenormative references are cited at the appropriate places in the text and the publications are listedhereafter. For dated references, subsequent amendments to, or revisions of any of these publicationsapply to this ETS only when incorporated in it by amendment or revision. For undated references the latestedition of the publication referred to applies.[1]ISO/IEC 8802-3 (1990): "Information processing systems - Local area networks- Part 3: Carrier sense multiple access with collision detection (CSMA/CD) -access method and physical layer specifications".[2]ISO/IEC 8802-5 (1988): "Information processing systems - Local area networks- Part 5: Token ring access method and physical layer specifications."[3]IEEE 802.6 (1990): "Distributed Queue Dual Bus (DQDB) subnetwork of ametropolitan area network (MAN)".[4]CCITT Recommendation E.164 (1991): "Numbering plan for the ISDN era".[5]CCITT Recommendation I.413 (1991): "B-ISDN user-network interface".[6]ETS 300 211 (1992): "Network Aspects (NA); Metropolitan Area Network (MAN)Principles and architecture".[7]CCITT Recommendation I.112 (1988): "Vocabulary of terms for ISDNs".[8]CCITT Recommendation E.800 (1988): "Quality of service and dependabilityvocabulary".[9]CCITT Recommendation I.324 (1988): "ISDN network architecture".SIST ETS 300 217-1 E1:2003

Page 8ETS 300 217-1: December 1992[10]CCITT Recommendation I.327: "B-ISDN functional architecture".[11]CCITT Recommendation I.230 (1988): "Definition of bearer service categories".[12]ETS 300 217-2 (1992):"Network Aspects (NA); Connectionless BroadbandData Service (CBDS)
Part 2: Basic bearer service definition".[13]ETS 300 217-3 (1992):"Network Aspects (NA); Connectionless BroadbandData Service (CBDS)
Part 3: Definition of supplementary services".[14]ETS 300 217-4 (1992):"Network Aspects (NA); Connectionless BroadbandData Service (CBDS)
Part 4: Address screening supplementary service".[15]ETS 300 212 (1992): "Network Aspects (NA); Metropolitan Area Network (MAN)Media access control layer and physical layer specification".[16]ISO/IEC DIS 8802-1: "Information processing systems - Local area networks -Part 1: General introduction".3Definitions and abbreviations3.1DefinitionsFor the purposes of all 4 parts of this ETS, the following definitions apply:Access class: a subscription condition defining the maximum allowed sustained information rate acrossan interface at the T reference point.Access class mechanism: functions limiting the information rate across the T reference point to enforcethe access class.Duplicated PDU: duplication of a PDU occurs if a previously received PDU is received once more acrossthe same interface at the T reference point. This applies whether the destination address is an individualor a group address.Duplicated PDUs ratio: the ratio of the number of duplicated PDUs to the total number of PDUstransferred in one direction between the source interface at the T reference point and the destinationinterface at the T reference point.SIST ETS 300 217-1 E1:2003

Page 9ETS 300 217-1: December 1992The total number of transferred PDUs, here considered, includes:-correct PDUs;-incorrect PDUs.Lost and misdelivered PDUs are not considered for this definition.Duplicated PDU ratio =duplicated PDUscorrect PDUs + incorrect PDUsNOTE 1:Duplicated PDUs caused by user action such as retransmission are excluded from theduplicated PDU ratio.Extra PDUs: includes duplicated as well as misdelivered PDUs.Incorrect PDU: a PDU is declared to be incorrect if its content is different from the original sent as far asthe parts required to be transparently transferred are concerned. PDUs which are discarded by thereceiving user due to errors detected by the protocol operating across the interface at the T referencepoint are not considered incorrect.Information rate: the data rate available to the user at the T reference point excluding the overhead.Interruption: CCITT Recommendation E.800 [8], definition 4101:"Temporary inability of a service to be provided persisting for more than a given time durationcharacterised by a change beyond given limits in at least one parameter essential for the service".Lost PDU: a PDU is declared to be lost if, because of a fault of the network (or the correspondingservice), it is not delivered across the intended interface at the T reference point. Lost PDUs include alsoboth those PDUs that have to be discarded by the network due to errors detected and those PDUs thatare received by the destination user but are discarded by the destination user as a result of errorsdetected by the protocol operating across the interface at the T reference point. PDUs not delivered as aresult of conditions not being the fault of the service provider, such as non-delivery caused bysupplementary services (e.g. address screening), are not considered lost. PDUs not delivered as a resultof equipment outages at the destination or congestion across the interface at the T reference point at thedestination are also not considered lost.Lost PDU ratio: the ratio of the number of lost PDUs to the sum of lost PDUs and the total number ofPDUs transferred in one direction between the source interface at the T reference point and destinationinterface at the T reference point.The total number of transferred PDUs, here considered, includes:-correct PDUs;-incorrect PDUs.Misdelivered and duplicate
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