1、 ETSI ES 201 803-9 V1.1.1 (2005-01)ETSI Standard Dynamic synchronous Transfer Mode (DTM);Part 9: Mapping of ATM over DTMETSI ETSI ES 201 803-9 V1.1.1 (2005-01) 2 Reference DES/TISPAN-02002-DTM Keywords DTM, ATM ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42
2、00 Fax: +33 4 93 65 47 16 Siret N 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/88 Important notice Individual copies of the present document can be downloaded from: http:/www.etsi.org The present document may be made available in more
3、than one electronic version or in print. In any case of existing or perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF). In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific netw
4、ork drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at http:/portal.etsi.org/tb/status/status.asp If you find errors in the p
5、resent document, please send your comment to one of the following services: http:/portal.etsi.org/chaircor/ETSI_support.asp Copyright Notification No part may be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media. Eu
6、ropean Telecommunications Standards Institute 2005. All rights reserved. DECTTM, PLUGTESTSTM and UMTSTM are Trade Marks of ETSI registered for the benefit of its Members. TIPHONTMand the TIPHON logo are Trade Marks currently being registered by ETSI for the benefit of its Members. 3GPPTM is a Trade
7、Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. ETSI ETSI ES 201 803-9 V1.1.1 (2005-01) 3 Contents Intellectual Property Rights4 Foreword.4 Introduction 5 1 Scope 6 2 References 6 3 Abbreviations .7 4 Overview 8 5 DTM ATM Transport Application Layer (A
8、P0)8 5.1 Access point information8 5.1.1 Characteristic Information 8 5.1.2 Adapted Information.8 5.1.3 Management Information .9 5.1.4 Timing Information.9 5.2 Connection function (AP0_C)9 5.3 Trail Termination functions (AP0e_TT) 9 5.3.1 Application 0 empty Trail Termination (AP0e_TT).9 5.3.1.1 Ap
9、plication 0 empty Termination Source function (AP0e_TT_So)9 5.3.1.2 Application 0 empty Trail Termination Sink function (AP0e_TT_Sk).10 5.4 Adaptation functions 11 5.4.1 Application 0 to ATM virtual path Adaptation function (AP0/Avp_A) .11 5.4.1.1 Application 0 to ATM virtual path Adaptation Source
10、function (AP0/Avp_A_So) .11 5.4.1.2 Application 0 to ATM virtual path Adaptation Sink function (AP0/Avp_A_Sk).15 6 Mapping of ATM virtual paths over DTM.18 History 19 ETSI ETSI ES 201 803-9 V1.1.1 (2005-01) 4 Intellectual Property Rights IPRs essential or potentially essential to the present documen
11、t may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR 000 314: “Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ET
12、SI standards“, which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (http:/webapp.etsi.org/IPR/home.asp). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existenc
13、e of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword This ETSI Standard (ES) has been produced by ETSI Technical Committee Telecommunications and Internet converged Services and Prot
14、ocols for Advanced Networking (TISPAN). The present document is part 9 of a multi-part deliverable covering the Dynamic synchronous Transfer Mode (DTM), as identified below: ES 201 803-1: “System description“; ES 201 803-2: “System characteristics“; ES 201 803-3: “Physical protocol“; ES 201 803-4: “
15、Mapping of DTM frames into SDH containers“; ES 201 803-5: “Mapping of PDH over DTM“; ES 201 803-6: “Mapping of Synchronous Digital Hierarchy (SDH) over DTM“; ES 201 803-7: “Ethernet over DTM Mapping“; ES 201 803-9: “Mapping of ATM over DTM“; TR 101 803-10: “Routeing and switching of IP traffic over
16、DTM“; ES 201 803-11: “Mapping of video streams over DTM“; ES 201 803-12: “Mapping of MPLS over DTM“; ES 201 803-13: “System description of sub-rate DTM“. ETSI ETSI ES 201 803-9 V1.1.1 (2005-01) 5 Introduction Dynamic synchronous Transfer Mode (DTM) is a time division multiplex and a circuit-switched
17、 network technique that combines switching and transport. Part 1 describes the general properties of DTM and the DTM service over a unidirectional data channel. The overall system architecture is described and fundamental functions are identified. Part 2 includes system aspects that are mandatory or
18、 optional for nodes from different vendors to interoperate. The interworking granularity should be at node level, such that nodes from different vendors can interoperate with regard to well-defined functions. Part 3 specifies the physical layer for physical links based on 8B10B encoding. Part 4 desc
19、ribes how DTM frames are mapped onto SDH containers. The transport of various tributary signals is specified for PDH (part 5), SDH (part 6), Ethernet (part 7), ATM (part 9), IP (part 10), video streaming (part 11) and MPLS (part 12). Subrate DTM is described in part 13. ETSI ETSI ES 201 803-9 V1.1.1
20、 (2005-01) 6 1 Scope The present document: specifies a method for mapping ATM virtual path over DTM channels; specifies the characteristics of critical parameters for mapping ATM virtual path over DTM channels; gives terms and definitions for mapping encoding and decoding. 2 References The following
21、 documents contain provisions which, through reference in this text, constitute provisions of the present document. References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For a specific reference, subsequent revisions do not apply.
22、 For a non-specific reference, the latest version applies. Referenced documents which are not found to be publicly available in the expected location might be found at http:/docbox.etsi.org/Reference. 1 ETSI EN 301 163-1-1: “Transmission and Multiplexing (TM); Generic requirements of Asynchronous Tr
23、ansfer Mode (ATM) transport functionality within equipment; Part 1-1: Functional characteristics and equipment performance“. 2 ETSI EN 301 163-2-1: “Transmission and Multiplexing (TM); Generic requirements of Asynchronous Transfer Mode (ATM) transport functionality within equipment; Part 2-1: Functi
24、onal model for the transfer and layer management plane“. 3 ETSI EN 300 301-1: “Broadband Integrated Services Digital Network (B-ISDN); Traffic control and congestion control in B-ISDN; Conformance definitions for Available Bit Rate (ABR) and ATM Blocked Transfer (ABT) ITU-T Recommendation I.371.1 (1
25、997)“. 4 ETSI ES 201 803-1: “Dynamic synchronous Transfer Mode (DTM); Part 1: System description“. 5 ETSI ES 201 803-2-3: “Dynamic synchronous Transfer Mode (DTM); Part 2: System characteristics; Sub-part 3: Transport network and channel adaptation aspects“. 6 ETSI ETS 300 298-1: “Broadband Integrat
26、ed Services Digital Network (B-ISDN); Asynchronous Transfer Mode (ATM); Part 1: B-ISDN ATM functional characteristics ITU-T Recommendation I.150 (1995)“. 7 ETSI ETS 300 298-2: “Broadband Integrated Services Digital Network (B-ISDN); Asynchronous Transfer Mode (ATM); Part 2: B-ISDN ATM layer specific
27、ation ITU-T Recommendation I.361 (1995)“. 8 ETSI ETS 300 300: “Broadband Integrated Services Digital Network (B-ISDN); Synchronous Digital Hierarchy (SDH) based user network access; Physical layer User Network Interfaces (UNI) for 155 520 kbit/s and 622 080 kbit/s Asynchronous Transfer Mode (ATM) B-
28、ISDN applications“. 9 ETSI ETS 300 354: “Broadband Integrated Services Digital Network (B-ISDN); B-ISDN Protocol Reference Model (PRM)“. 10 ETSI ETS 300 404: “Broadband Integrated Services Digital Network (B-ISDN); B-ISDN Operation And Maintenance (OAM) principles and functions“. 11 ITU-T Recommenda
29、tion I.150: “B-ISDN asynchronous transfer mode functional characteristics“. ETSI ETSI ES 201 803-9 V1.1.1 (2005-01) 7 12 ITU-T Recommendation I.321: “B-ISDN protocol reference model and its application“. 13 ITU-T Recommendation I.361: “B-ISDN ATM layer specification“. 14 ITU-T Recommendation I.371:
30、“Traffic control and congestion control in B-ISDN“. 15 ITU-T Recommendation I.432.1: “B-ISDN user-network interface - Physical layer specification: General characteristics“. 16 ITU-T Recommendation I.610: “B-ISDN operation and maintenance principles and functions“. 3 Abbreviations For the purposes o
31、f the present document, the following abbreviations apply: A Adapted function aAIS Alarm Indication Signal action aCNGI CoNGestion Indication action ACS ATM Cell Start AI Adapted Information AIS Alarm Indication Signal AP Access Point AP0 Application layer channel adaptation type 0 ATM Asynchronous
32、Transfer Mode aSSF Server Signal Fail action Avp ATM virtual path C Connection functionCI Characteristic Information CK ClocK cLCD Loss of Cell Delineation failure cause CLP Cell Loss Priority CNGI CoNGestion Indication CP Connection Point D Data DCAP DTM Channel Adaptation Protocol DFLOC Defect Fie
33、ld LOCation dLCD Loss of Cell Delineation defect DTM Dynamic synchronous Transfer Mode EFCI Explicit Forward Congestion Indicator FS Frame Start signal GFC Generic Flow Control HEC Header Error Check II Idle Insertion LSB Least Significant Bit MI Management Information MP Management Point MSB Most S
34、ignificant Bit NE Network Element NNI Network Node Identifier OAM Operation, Administration and Maintenance OCD Out of Cell Delineation PDH Plesiochronous Digital Hierarchy PRM Protocol Reference Model PS Performance SupervisionPSI Performance Supervision Indication PTI Payload Type Identifier SDH S
35、ynchronous Digital Hierarchy sII Idle Insertion signal Sk Sink So Source SSF Server Signal Fail ETSI ETSI ES 201 803-9 V1.1.1 (2005-01) 8 TI Timing Information TP Timing Point TSF Trail Signal Fail TT Trail Termination UNI User Network Interface VCI Virtual Channel Identifier VP Virtual Path VP-AIS
36、Virtual Path Alarm Indication Signal VPI Virtual Path Identifier 4 Overview The ATM virtual path (Avp) over DTM mapping describes the mapping of ATM cells over DTM channels. The functionality is part of the DTM Application layer and provides a transport service to the ATM virtual path layer similar
37、to the transport path definitions in EN 301 163-2-1 2. The mapping has been modelled to fit into the formal modelling of EN 301 163-1-1 1 and EN 301 163-2-1 2 and providing a service similar to the S4/Avp EN 301 163-2-1 2 transport path, but with the arbitrary capacity of a DTM channel ES 201 803-1
38、4. The ATM over DTM mapping enables the service where an ATM network connection can be established over a DTM network either as a transported bit-pipe, overlay network or hybrid thereof. Such a connection can be either bi-directional or uni-directional. Uni-directional connections may take advantage
39、 of the DTM multicast capability. 5 DTM ATM Transport Application Layer (AP0) The ATM virtual path (Avp) over DTM transport is specified as the Application 0 (AP0) adaptation functions on top of the DCAP-0 ES 201 803-2-3 5 adaptation functions, providing the Avp trail over DTM. AP0AP0_APAvp_CPAP0_CP
40、AP0AP0/AvpAP0AP0/AvpFigure 1: Application 0 atomic functions 5.1 Access point information 5.1.1 Characteristic Information The Characteristic Information (CI) of the Connection Point (CP) is described in EN 301 163-2-1 2. 5.1.2 Adapted Information The Adapted Information (AI) of the Adaption Point (
41、AP) is described in ES 201 803-2-3 5 as the Application 0 Characteristic Information. ETSI ETSI ES 201 803-9 V1.1.1 (2005-01) 9 5.1.3 Management Information The Management Information (MI) of the Management Point (MP) is described in EN 301 163-2-1 2 as the S3/Avp management information. 5.1.4 Timin
42、g Information The Timing Information (TI) of the Timing Point (TP) is: the Application 0 data clock timing indication AP0_TI_CK; and the Application 0 frame start timing indication AP0_TI_FS. 5.2 Connection function (AP0_C) Not applicable. There are no connection functions defined for this layer. 5.
43、3 Trail Termination functions (AP0e_TT) The trail termination functions are empty mappings between AI and CI. 5.3.1 Application 0 empty Trail Termination (AP0e_TT) 5.3.1.1 Application 0 empty Termination Source function (AP0e_TT_So) Symbol: AP0eAP0_AIAP0_CIFigure 2: Application 0 empty Trail Termina
44、tion Source (AP0e_TT_So) Interfaces: Table 1: AP0e_TT_So Input and output signals Input(s) Output(s) AP0_AI_D AP0_CI_DAP0_AI_CK AP0_CI_CKAP0_AI_II AP0_CI_II AP0_AI_PSI AP0_CI_PSI AP0_AI_TSF AP0_CI_SSF Processes and anomalies: None. Defects: None. Consequent actions: None. ETSI ETSI ES 201 803-9 V1.1
45、.1 (2005-01) 10Defect correlation: None. Performance monitoring: None. Output mapping: AP0_CI_D AP0_AI_D. AP0_CI_CK AP0_AI_CK. AP0_CI_II AP0_AI_II. AP0_CI_PSI AP0_AI_PSI. AP0_CI_SSF AP0_AI_TSF. Fault management: None. Long term performance monitoring: None. 5.3.1.2 Application 0 empty Trail Terminat
46、ion Sink function (AP0e_TT_Sk) Symbol: AP0eAP0_AIAP0_CIFigure 3: Application 0 empty Trail Termination Sink (AP0e_TT_Sk) Interfaces: Table 2: AP0e_TT_Sk Input and output signals Input(s) Output(s) AP0_CI_D AP0_AI_DAP0_CI_CK AP0_AI_CKAP0_CI_II AP0_AI_II AP0_CI_PSI AP0_AI_PSI AP0_CI_SSF AP0_AI_TSF Pro
47、cesses and anomalies: None. Defects: None. ETSI ETSI ES 201 803-9 V1.1.1 (2005-01) 11Consequent actions: None. Defect correlation: None. Performance monitoring: None. Output mapping: AP0_AI_D AP0_CI_D. AP0_AI_CK AP0_CI_CK. AP0_AI_II AP0_CI_II. AP0_AI_PSI AP0_CI_PSI. AP0_AI_TSF AP0_CI_SSF. Fault mana
48、gement: None. Long term performance monitoring: None. 5.4 Adaptation functions 5.4.1 Application 0 to ATM virtual path Adaptation function (AP0/Avp_A) This clause describes the ATM virtual path adaptation using Application 0 empty trail terminators. 5.4.1.1 Application 0 to ATM virtual path Adaptati
49、on Source function (AP0/Avp_A_So) Symbol: AP0/AvpAvp_CIAP0_TI AP0/Avp_A_So_MIAP0_AIFigure 4: Application 0 to ATM virtual path Adaptation Source (AP0/Avp_A_So) ETSI ETSI ES 201 803-9 V1.1.1 (2005-01) 12Interfaces: Table 3: AP0/Avp_A_So Input and output signals Input(s) Output(s) Per Avp_CI for each VP configured: AP0_AI_D Avp_CI_D AP0_AI_CKAvp_CI_ACS AP0_AI_II Avp_CI_SSF AP0_AI_PSI AP0_TI_CK AP0_AI_TSF AP0_TI_FS AP0/Avp_A_So_MI_Active AP0/Avp_A_So_MI_CellDiscardActive AP0/Avp_A_So_MI_TPu
