1、INTERNATIONAL TELECOMMUNICATION UNION ITU-T TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU 1.377 (1 0/2000) SERIES I: INTEGRATED SERVICES DIGITAL NETWORK Overall network aspects and functions - General network requirements and functions Network requirements to support charging and accounting in B-I
2、SDN ITU-T Recommendation 1.377 (Previously CCITT Recommendation) ITU-T I-SERIES RECOMMENDATIONS INTEGRATED SERVICES DIGITAL NETWORK GENERAL STRUCTURE Terminology Description of ISDNs General modelling methods Telecommunication network and service attributes General description of asynchronous transf
3、er mode SERVICE CAPABILITIES Scope General aspects of services in ISDN Common aspects of services in the ISDN Bearer services supported by an ISDN Teleservices supported by an ISDN Supplementary services in ISDN OVERALL NETWORK ASPECTS AND FUNCTIONS Network functional principles Reference models Num
4、bering, addressing and routing Connection types Performance objectives Protocol layer requirements 1.110-1.119 I. 120-1.129 1.1 30-1.139 I. 140-1.149 I. 1 50-1.1 99 1.200-1.209 1.21 0-1.21 9 1.220-1.229 1.230-1.239 1.240-1.249 1.250-1.299 1.31 0-1.31 9 1.320-1.329 1.330-1.339 I .340-1.349 1.350-1.35
5、9 I .360-1.369 General network requirements and functions 1.370-1.399 ISDN USER-NETWORK INTERFACES Application of I-Lettres Recommendations to ISDN user-network interfaces Layer 1 Recommendations Layer 2 Recommendations Layer 3 Recommendations Multiplexing, rate adaption and support of existing inte
6、rfaces Aspects of ISDN affecting terminal requirements INTERNETWORK INTERFACES MAINTENANCE PRINCIPLES ATM equipment Transport functions Management of ATM equipment B-ISDN EQUIPMENT ASPECTS I .420-1.429 1.430-1.439 I .440-1.449 1.450-1.459 I .460-1.469 I .470-1.499 1.500-1.599 1.600-1.699 1.730-1.739
7、 I .740-1.749 1.750-1.799 For further details, please rer to ITD-T List of Recommendations. ITU-T RECOMMENDATION 1.377 NETWORK REQUIREMENTS TO SUPPORT CHARGING AND ACCOUNTING IN B-ISDN Summary This Recommendation specifies the network capabilities to support the registration and communication of inf
8、ormation required for charging and accounting of ATM connections in order to support the charging and accounting principles as defined in Recommendation D.224. It specifies the events to be registered, for each event the parameters to be registered and the requirements related to the communication o
9、f this information to an external system. Source ITU-T Recommendation 1.377 was prepared by ITU-T Study Group 13 (1997-2000) and was approved by the WTSA (Montreal, 27 September-6 October 2000). Recommendation 1.377 (10/2000) 1 FOREWORD ITU (International Telecommunication Union) is the United Natio
10、ns Specialized Agency in the field of telecommunications. The ITU Telecommunication Standardization Sector (U-T) is a permanent organ of the ITU. The U-T is responsible for studying technical, operating and tariff questions and issuing Recommendations on them with a view to standardizing telecommuni
11、cations on a worldwide basis. The World Telecommunication Standardization Assembly (WTSA), which meets every four years, establishes the topics for study by the ITU-T Study Groups which, in their turn, produce Recommendations on these topics. The approval of Recommendations by the Members of the ITU
12、-T is covered by the procedure laid down in WTSA Resolution No. 1. In some areas of information technology which fall within ITU-Ts purview, the necessary standards are prepared on a collaborative basis with IS0 and IEC. NOTE In this Recommendation, the expression “Administration“ is used for concis
13、eness to indicate both a telecommunication administration and a recognized operating agency. INTELLECTUAL PROPERTY RIGHTS The ITU draws attention to the possibility that the practice or implementation of this Recommendation may involve the use of a claimed Intellectual Property Right. The U takes no
14、 position concerning the evidence, validity or applicability of claimed Intellectual Property Rights, whether asserted by U members or others outside of the Recommendation development process. As of the date of approval of this Recommendation, the U had not received notice of intellectual property,
15、protected by patents, which may be required to implement this Recommendation. However, implementors are cautioned that this may not represent the latest information and are therefore strongly urged to consult the TSB patent database. o mu 2001 All rights reserved. No part of this publication may be
16、reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing fiom the ITU. 11 Recommendation 1.377 (10/2000) CONTENTS Page 1 2 3 3.1 3.2 4 4.1 4.2 4.3 5 5.1 5.2 5.3 Scope . References . Terms and definitions . Defin
17、itions Abbreviations and acronyms . Network capabilities for the registration of parameters related to charging . Registration triggers Parameters to be registered . 4.2.1 Capabilities for registration at connection establishment 4.2.2 Capabilities for registration at unsuccessful connection Set-up
18、attempt 4.2.3 Capabilities for registration of in-call modifications to the connection parameters 4.2.4 Capabilities for registration at unsuccessful connection modification attempt . 4.2.5 Capabilities for registration during the connection until its release 4.2.6 Capabilities for registration at c
19、onnection release . Acceptable registration delay Network capabilities for the communication of information related to charging . Reference configuration for communication of information Connection Detail Records for communicating information to support charging Communication between the network and
20、 an external system . and accounting 1 7 7 7 9 10 10 10 11 12 . Recommendation 1.377 (10/2000) 111 Recommendation 1.377 NETWORK REQUIREMENTS TO SUPPORT CHARGING AND (Montreal, 2000) ACCOUNTING IN B-ISDN 1 Scope This Recommendation specifies the network capabilities to support the registration and co
21、mmunication of information required for charging of ATM connections in order to support all the charging and accounting principles as defined in Recommendation D.224. In a practical situation, in a given network and at a given moment in time, a network operator may choose not to use all defined char
22、ging and accounting principles in that network. If the operator chooses not to use specific D.224 options, some related requirements in this Recommendation may be not applicable. Specific requirements to support charging for point-to-multipoint ATM connections are not currently addressed in this Rec
23、ommendation. They are left for further study. 2 References The following ITU-T Recommendations and other references contan provisions which, through reference in this text, constitute provisions of this Recommendation. At the time of publication, the editions indicated were valid. All Recommendation
24、s and other references are subject to revision; all users of this Recommendation are therefore encouraged to investigate the possibility of applying the most recent edition of the Recommendations and other references listed below. A list of the currently valid ITU-T Recommendations is regularly publ
25、ished. D.224 E. 1911 F.811 F.813 I. 1501 I.3 111 I. 3 5 61 1.361 1.371 1.371.1 Q. 26 1 O Q.2726.2 ITU-T Recommendation D.224 (1999), Charging and accounting principles for ITU-T Recommendation E. 19 1 (2000), B-ISDN addressing. ITU-T Recommendation F. 8 1 1 (1 996), Broadband connection-oriented bea
26、rer service. ITU-T Recommendation F.813 (1995), Virtual path service for reserved and permanent communications. ITU-T Recommendation I. 150 (1 999), B-ISDN asynchronous transfer mode functional characteristics. ITU-T Recommendation 1.3 1 1 (1 996), B-ISDN general network aspects. ITU-T Recommendatio
27、n 1.356 (2000), B-ISDN ATM layer cell transfer performance. ITU-T Recommendation 1.361 (1999), B-ISDNATM layer speczjkation. ITU-T Recommendation 1.371 (2000), Trafic control and congestion control in ITU-T Recommendation 1.371.1 (1997), Trafic control and congestion control in B-ISDN: Conformance d
28、efinitions for ABT and ABR. ITU-T Recommendation 4.2610 (1999), Usage of cause and location in B-ISDN user part and DSS2. ITU-T Recommendation 4.2726.2 (1996), B-ISDN userpart - Callpriority. A TM/B-ISDN. B-ISDN. Recommendation 1.377 (10/2000) 1 Q.2726.3 Q.2726.4 Q.293 i ITU-T Recommendation 4.2726.
29、3 (1996), B-ISDN user part - Network generated session iden tiper. ITU-T Recommendation 4.2726.4 (2000), Extensions to the B-ISDN user part application generated identipers. ITU-T Recommendation 4.293 1 (1995), Digital Subscriber Signalling System No. 2 (aSS2) - User-Network Inteflace (v2vr) Layer 3
30、 specipcation for basic callUconnection control. 3 Terms and definitions 3.1 Definitions This Recommendation defines the following terms: 3.1.1 recording interface: A recording interface indicates a (standardized) interface at which the registration takes place of connection-related information to s
31、upport the charging and accounting of ATM connections. 3.1.2 connection detail record: A Connection Detail Record (in this Recommendation abbreviated as CDR) contains the registered measurements and information for a connection for a specific time interval. 3.1.3 connection establishment: This term
32、is defined in Recommendation D.224 as follows: Connection establishment indicates the moment the connection has been set up and has become available to the user to transport ATM cells. For connections using signalling, this corresponds to the entry into the “active“ state. 3.1.4 connection release:
33、This term is defined in Recommendation D.224 as follows: Connection release indicates the moment the connection has become unavailable to the user to transport ATM cells. For connections using signalling this corresponds to the departure from the I active“ state. 3.1.5 connections active phase: This
34、 term is defined in Recommendation D.224 as follows: The connection ir active phase indicates the entire period between connection establishment and connection release. 3.1.6 recording interval: A recording interval is the time interval that the registration pertains to. Information related to a giv
35、en connection may be registered for one or several successive recording intervals. Examples for the use of multiple recording intervals are the following: - - in case of connection modification; to support multiple charging periods (where the end of a charging period coincides with the end of a reco
36、rding interval); to allow a network external system to be provided with registered information before the connection is released; to limit the consequences of data loss. - - The first recording interval for a connection is likely to start at connection establishment. The final recording interval for
37、 a connection is likely to end at connection release. Intermediate recording intervals may be started and stopped at regular intervals, or by special events, such as listed above. 3.1.7 charging period: An Administration may choose to apply different charges to different periods, e.g. charges for pe
38、ak and off-peak hours. Such periods are referred to as charging periods (see 5.3D.224). 2 Recommendation 1.377 (10/2000) 3.1.8 direction- and location-related terms For the relation between originating and terminating UNI, the forward and backward direction and the ingress and egress sides, see Figu
39、re 1. Network Figure UI.377 - Illustration of the terminology originatingkerminating UNI, forward/backward direction and ingresdegress sides of one network - Originating UNIZVf The UNI or IN1 with the party that initiated the connection (for SVCs: calling party). Terminating UNIZVf The UNI or IN1 wi
40、th the party to which the connection was established (for SVCs: called party). Forward direction: The direction from the originating UNI/INI to the terminating UNI/INI. Backward direction: The direction from the terminating UNI/INI to the originating UNI/INI. Ingress: Going into the network. Ingress
41、 cell count: The number of cells admitted into the network. Egress: Coming out of the network. Egress cell count: The number of cells delivered by the network. - - - - - - - 3.2 Abbreviations and acronyms This Recommendation uses the following abbreviations: ATC ATM B-ISDN CDR CLP IN1 NPC UPC vcc VP
42、C ATM Transfer Capability 1.371 Asynchronous Transfer Mode Broadband Integrated Services Digital Network Connection Detail Record (see 3.1.2) Cell Loss Priority 1.361,1.356,1.371 Inter-Network Interface 1.371 Network Parameter Control 1.371 Usage Parameter Control 1.371 Virtual Channel Connection I.
43、3 1 1, I. 1501 Virtual Path Connection 1.3 1 1, I. 1501 Recommendation 1.377 (10/2000) 3 4 For each established connection, and at each interface designated as a recording interface, the network shall be able to record the connection-related information for the events specified in 4.1 with the param
44、eters as specified in 4.2. Each interface used as UNI or as IN1 shall provide the capability to be designated as a recording interface. Whether or not an interface is assigned as a recording interface is administration-specific. Network capabilities for the registration of parameters related to char
45、ging 4.1 Registration triggers The network shall be able to register information at the occurrence of the following events: 1) 2) 3) 4) 5) 6) 7) In Figure 2 the registration moments have been indicated graphically. at connection establishment (see 4.2.1); at an unsuccessful connection Set-up attempt
46、 (failed) (see 4.2.2); when any of the traffic contract parameters is modified (see 4.2.3); at an unsuccessful attempt to change any of the traffic parameters (connection modification attempt (failed) (see 4.2.4); at the end of a charging period (see 4.2.5); at the end of a recording interval (see 4
47、.2.5); at connection release (see 4.2.6). Connection duration i I Charging period A Recording inverval 1 + Coniection establishment Connection Set-up attempt Recordi Charging period B I - nterval2 Connection release Connection modification attempt (failed) Connection modification i. i time T1316910-
48、00 Figure 2A.377 - Moments in time at which registration shall be performed - the numbers correspond with the bullet numbers in the text 4 Recommendation 1.377 (10/2000) 4.2 Parameters to be registered The following subclauses describe the information to be registered at a recording interface, separ
49、ately for each of the events listed in 4.1. The requirements relate to each interface which is designated to be a recording interface and to each connection crossing that interface. 4.2.1 At connection establishment, the network shall register the information as listed in the following subclauses. Capabilities for registration at connection establishment 4.2.1.1 Interface identification The network shall supply and register an identification of the interface which recorded the connection-related information. The network shall ensure that
