1、 ETSI ES 201 803-6 V1.2.1 (2005-01)ETSI Standard Dynamic synchronous Transfer Mode (DTM);Part 6: Mapping of SynchronousDigital Hierarchy (SDH) over DTMETSI ETSI ES 201 803-6 V1.2.1 (2005-01) 2 Reference RES/TISPAN-02017-DTM Keywords DTM, protocol, SDH, switching, transmission ETSI 650 Route des Luci
2、oles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 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
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6、 the foregoing restriction extend to reproduction in all media. European 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 reg
7、istered by ETSI for the benefit of its Members. 3GPPTM is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. ETSI ETSI ES 201 803-6 V1.2.1 (2005-01) 3 Contents Intellectual Property Rights5 Foreword.5 Introduction 6 1 Scope 7 2 References 7 3 Defi
8、nitions and abbreviations.8 3.1 Definitions8 3.2 Abbreviations .9 4 Overview 10 5 DTM SDH Transport Application Layer .12 5.1 Access point information13 5.1.1 Characteristic Information 13 5.1.2 Adapted Information.13 5.1.3 Management Information .13 5.1.4 Timing Information.14 5.2 Connection functi
9、on (AP0_C)14 5.3 Trail Termination functions (AP0e_TT) 14 5.3.1 Application 0 empty Trail Termination (AP0e_TT).14 5.3.1.1 Application 0 empty Termination Source function (AP0e_TT_So)14 5.3.1.2 Application 0 empty Trail Termination Sink function (AP0e_TT_Sk).15 5.4 Adaptation functions (AP0/Sn_A) .1
10、6 5.4.1 DTM Application 0/SDH Higher order path Adaptation function (AP0/S4_A).16 5.4.1.1 Media Adaptation Source function (AP0/S4_A_So) 16 5.4.1.2 Media Adaptation Sink function (AP0/S4_A_Sk) 18 5.4.2 DTM Application 0/SDH Higher order path Adaptation function (AP0/S3_A).20 5.4.2.1 Media Adaptation
11、 Source function (AP0/S3_A_So) 20 5.4.2.2 Media Adaptation Sink function (AP0/S3_A_Sk) 22 5.4.3 DTM Application 0/SDH Lower order S2 path Adaptation function (AP0/S2_A) 25 5.4.3.1 Application 0 to SDH Lower order path S2 Adaptation Source function (AP0/S2_A_So) 25 5.4.3.2 Application 0 to SDH Lower
12、order path S2 Adaptation Sink function (AP0/S2_A_Sk)27 5.4.4 DTM Application 0/SDH Lower order S12 path Adaptation function (AP0/S12_A) 29 5.4.4.1 Application 0 to SDH Lower order path S12 Adaptation Source function (AP0/S12_A_So) 29 5.4.4.2 Application 0 to SDH Lower order path S12 Adaptation Sink
13、function (AP0/S12_A_Sk)31 5.4.5 DTM Application 0/SDH Lower order S11 path Adaptation function (AP0/S11_A) 33 5.4.5.1 Application 0 to SDH Lower order path S11 Adaptation Source function (AP0/S11_A_So) 33 5.4.5.2 Application 0 to SDH Lower order path S11 Adaptation Sink function (AP0/S11_A_Sk)35 6 M
14、apping of SDH VC-4 over DTM 37 6.1 DCAP-0 slot elements 38 6.2 Data slot mapping.38 6.2.1 Section beginning .38 6.2.2 Section data.39 6.3 VC-4 mapping39 7 Mapping of SDH VC-3 over DTM 39 7.1 DCAP-0 slot elements 39 7.2 Data slot mapping.39 7.2.1 Section beginning .40 7.2.2 Section data.40 7.3 VC-3 m
15、apping40 8 Mapping of SDH VC-2 over DTM 40 8.1 DCAP-0 slot elements 40 8.2 Data slot mapping.41 ETSI ETSI ES 201 803-6 V1.2.1 (2005-01) 4 8.2.1 Section beginning .41 8.2.2 Section data.41 8.3 VC-2 mapping41 9 Mapping of SDH VC-12 over DTM 41 9.1 DCAP-0 slot elements 41 9.2 Data slot mapping.42 9.2.1
16、 Section beginning .42 9.2.2 Section data.42 9.3 VC-12 mapping 42 10 Mapping of SDH VC-11 over DTM 42 10.1 DCAP-0 slot elements 42 10.2 Data slot mapping.43 10.2.1 Section beginning .43 10.2.2 Section data.43 10.3 VC-11 mapping 43 11 Grouped mapping of virtual containers43 11.1 Grouped mapping.44 11
17、.2 Separate or common phase.44 12 Channel creation information.45 12.1 Historical encoding of channel characteristics .46 Annex A (informative): Recommendation on Mapping of PDH over DTM .47 History 48 ETSI ETSI ES 201 803-6 V1.2.1 (2005-01) 5 Intellectual Property Rights IPRs essential or potential
18、ly essential to the present document 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, IPR
19、s notified to ETSI in respect of ETSI 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 guaran
20、tee can be given as to the existence 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 I
21、nternet converged Services and Protocols for Advanced Networking (TISPAN). The present document is part 6 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: “
22、Physical protocol“; ES 201 803-4: “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: “Routein
23、g and switching of IP traffic over 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 201 803-6 V1.2.1 (2005-01) 6 Introduction Dynamic synchronous Transfer Mode (DTM) is a time divisi
24、on multiplex and a circuit-switched 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 s
25、ystem aspects that are mandatory or 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 b
26、ased on 8B10B encoding. Part 4 describes 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 par
27、t 13. ETSI ETSI ES 201 803-6 V1.2.1 (2005-01) 7 1 Scope The present document achieves the following: specifies a method for mapping SDH VC-11, VC-12, VC-2, VC-3, VC-4 and VC-4-Xc containers over DTM channels; specifies a method for grouped mapping of SDH VC-11, VC-12, VC-2, VC-3 and VC-4 containers
28、over DTM channels; specifies the characteristics of critical parameters for mapping of SDH VC-11, VC-12, VC-2, VC-3, VC-4 and VC-4-Xc containers over DTM channels; specifies the characteristics of critical parameters for grouped mapping of SDH VC-11, VC-12, VC-2, VC-3 and VC-4 containers over DTM ch
29、annels; gives terms and definitions for mapping encoding. 2 References The following 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
30、number) or non-specific. For a specific reference, subsequent revisions do not apply. 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 300
31、 417-1-1: “Transmission and Multiplexing (TM); Generic requirements of transport functionality of equipment; Part 1-1: Generic processes and performance“. 2 ETSI EN 300 417-3-1: “Transmission and Multiplexing (TM); Generic requirements of transport functionality of equipment; Part 3-1: Synchronous T
32、ransport Module-N (STM-N) regenerator and multiplex section layer functions“. 3 ETSI EN 300 417-4-1: “Transmission and Multiplexing (TM); Generic requirements of transport functionality of equipment; Part 4-1: Synchronous Digital Hierarchy (SDH) path layer functions“. 4 ETSI EN 301 164: “Transmissio
33、n and Multiplexing (TM); Synchronous Digital Hierarchy (SDH); SDH leased lines; Connection characteristics“. 5 ETSI EN 301 165: “Transmission and Multiplexing (TM); Synchronous Digital Hierarchy (SDH); SDH leased lines; Network and terminal interface presentation“. 6 ETSI ES 201 803-2-3: “Dynamic sy
34、nchronous Transfer Mode (DTM); Part 2: System characteristics; Sub-part 3: Transport network and channel adaptation aspects“. 7 ITU-T Recommendation G.707: “Network node interface for the Synchronous Digital Hierarchy (SDH)“. 8 ITU-T Recommendation G.805: “Generic functional architecture of transpor
35、t networks“. 9 ITU-T Recommendation G.806: “Characteristics of transport equipment - Description methodology and generic functionality“. ETSI ETSI ES 201 803-6 V1.2.1 (2005-01) 8 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the following terms and definit
36、ions apply: Access Point (AP): “reference point“ that consists of the pair of co-located “unidirectional access“ points, and therefore represents the binding between the trail termination and adaptation functions NOTE: Adopted from ITU-T Recommendation G.805 8. Adapted Information (AI): information
37、passing across an AP NOTE: See also ITU-T Recommendation G.805 8. Adopted from ITU-T Recommendation G.806 9. Alarm Indication Signal (AIS): special marker sent in a data slot to mark the lack of transported data as a result of a defect in the transmission path channel: set of slots allocated from on
38、e source access node to one or more destination access nodes in a network Characteristic Information (CI): signal with a specific format, which is transferred on “network connections“ NOTE: The specific formats will be defined in the technology specific Recommendations. The information passing acros
39、s a CP or TCP. (Adopted from ITU-T Recommendation G.805 8 and ITU-T Recommendation G.806 9). Connection Point (CP): reference point where the output of a trail termination source or a connection is bound to the input of another connection, or where the output of a connection is bound to the input of
40、 a trail termination sink or another connection NOTE: Adopted from ITU-T Recommendation G.806 9. defect: density of anomalies has reached a level where the ability to perform a required function has been interrupted NOTE: Defects are used as input for performance monitoring, the control of consequen
41、t actions, and the determination of fault cause. (Adopted from ITU-T Recommendation G.806 9). frame: set of slots forming an entity that is transmitted on a physical medium repeatedly every 125 s (nominally), i.e. 8 000 frames/second grouped mapping: the mapping of a group of some number of elements
42、 being specified in a basic mapping. NOTE: In grouped mapping, a mapping scheme from the channel to the basic mapping needs to be defined. idle: special marker sent in a data slot to mark the lack of transported data in the slot Management Information (MI): signal passing across an access point NOTE
43、: Adopted from ITU-T Recommendation G.806 9. Management Point (MP): reference point where the output of an atomic function is bound to the input of the element management function, or where the output of the element management function is bound to the input of an atomic function NOTE: The MP is not
44、the TMN Q3 interface. Adopted from ITU-T Recommendation G.806 9. Performance Supervision (PS): special marker sent with the data containing per channel Performance Supervision information physical link: unidirectional connection between the transmitter of one port and the receiver of another port Se
45、rver Signal Fail (SSF): signal fail indication output at the CP of an adaptation function NOTE: Adopted from ITU-T Recommendation G.806 9. ETSI ETSI ES 201 803-6 V1.2.1 (2005-01) 9 Signal Fail (SF): signal indicating the associated data has failed in the sense that a near-end defect condition (not b
46、eing the degraded defect) is active NOTE: Adopted from ITU-T Recommendation G.806 9. slot: time slot within the frame being able to transport 64 bit of data or a number of special codes Trail Signal Fail (TSF): signal fail indication output at the AP of a termination function NOTE: Adopted from ITU-
47、T Recommendation G.806 9. 3.2 Abbreviations For the purposes of the present document, the following abbreviations apply: A Adapted function aAIS Alarm Indication Signal action AI Adapted Information AIS Alarm Indication Signal AP Access Point AP0 APplication layer channel adaptation type 0 AP0e APpl
48、ication layer channel adaptation type 0 with empty trail termination aSSF Server Signal Fail action BPn ByPass layer type n BPnp ByPass layer type n Protection C Connection functioncAIS Alarm Indication Signal cause CH CHannel layer CHn CHannel layer type-n CHP CHannel layer Protection CI Characteri
49、stic InformationCK ClocK cLOJ Loss Of Justification cause CP Connection Point D Data dAIS Alarm Indication Signal defect DCAP DTM Channel Adaptation Protocol DTM Dynamic synchronous Transfer Mode fAIS Alarm Indication Signal fault FJ- negative Frequency Justification FJ+ positive Frequency Justification fLOJ Loss Of Justification fault FS Frame Start signal IF In Frame II Idle Insertion MI Management Information Mn Media layer type-n MP Management PointnAIS Alarm Indication Signal anomaly nFJ- negative Frequency Justifi
