1、 I n t e r n a t i o n a l T e l e c o m m u n i c a t i o n U n i o n ITU-T G.709/Y.1331 TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU Corrigendum 2 (01/2015) SERIES G: TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS Digital terminal equipments General SERIES Y: GLOBAL INFORMATION IN
2、FRASTRUCTURE, INTERNET PROTOCOL ASPECTS AND NEXT-GENERATION NETWORKS Internet protocol aspects Transport Interfaces for the optical transport network Corrigendum 2 Recommendation ITU-T G.709/Y.1331 (2012) Corrigendum 2 ITU-T G-SERIES RECOMMENDATIONS TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AN
3、D NETWORKS INTERNATIONAL TELEPHONE CONNECTIONS AND CIRCUITS G.100G.199 GENERAL CHARACTERISTICS COMMON TO ALL ANALOGUE CARRIER-TRANSMISSION SYSTEMS G.200G.299 INDIVIDUAL CHARACTERISTICS OF INTERNATIONAL CARRIER TELEPHONE SYSTEMS ON METALLIC LINES G.300G.399 GENERAL CHARACTERISTICS OF INTERNATIONAL CA
4、RRIER TELEPHONE SYSTEMS ON RADIO-RELAY OR SATELLITE LINKS AND INTERCONNECTION WITH METALLIC LINES G.400G.449 COORDINATION OF RADIOTELEPHONY AND LINE TELEPHONY G.450G.499 TRANSMISSION MEDIA AND OPTICAL SYSTEMS CHARACTERISTICS G.600G.699 DIGITAL TERMINAL EQUIPMENTS G.700G.799 General G.700G.709 Coding
5、 of voice and audio signals G.710G.729 Principal characteristics of primary multiplex equipment G.730G.739 Principal characteristics of second order multiplex equipment G.740G.749 Principal characteristics of higher order multiplex equipment G.750G.759 Principal characteristics of transcoder and dig
6、ital multiplication equipment G.760G.769 Operations, administration and maintenance features of transmission equipment G.770G.779 Principal characteristics of multiplexing equipment for the synchronous digital hierarchy G.780G.789 Other terminal equipment G.790G.799 DIGITAL NETWORKS G.800G.899 DIGIT
7、AL SECTIONS AND DIGITAL LINE SYSTEM G.900G.999 MULTIMEDIA QUALITY OF SERVICE AND PERFORMANCE GENERIC AND USER-RELATED ASPECTS G.1000G.1999 TRANSMISSION MEDIA CHARACTERISTICS G.6000G.6999 DATA OVER TRANSPORT GENERIC ASPECTS G.7000G.7999 PACKET OVER TRANSPORT ASPECTS G.8000G.8999 ACCESS NETWORKS G.900
8、0G.9999 For further details, please refer to the list of ITU-T Recommendations. Rec. ITU-T G.709/Y.1331 (2012)/Cor.2 (01/2015) i Recommendation ITU-T G.709/Y.1331 Interfaces for the optical transport network Corrigendum 2 Summary Corrigendum 2 to Recommendation ITU-T G.709/Y.1331 (2012) removes the
9、T factor from Table 7-9. History Edition Recommendation Approval Study Group Unique ID* 1.0 ITU-T G.709/Y.1331 2001-02-09 15 11.1002/1000/5350 1.1 ITU-T G.709/Y.1331 (2001) Amd. 1 2001-11-29 15 11.1002/1000/5629 2.0 ITU-T G.709/Y.1331 2003-03-16 15 11.1002/1000/6265 2.1 ITU-T G.709/Y.1331 (2003) Amd
10、. 1 2003-12-14 15 11.1002/1000/7060 2.2 ITU-T G.709/Y.1331 (2003) Cor. 1 2006-12-14 15 11.1002/1000/8982 2.3 ITU-T G.709/Y.1331 (2003) Amd. 2 2007-11-22 15 11.1002/1000/9155 2.4 ITU-T G.709/Y.1331 (2003) Cor.2 2009-01-13 15 11.1002/1000/9646 2.5 ITU-T G.709/Y.1331 (2003) Amd. 3 2009-04-22 15 11.1002
11、/1000/9671 3.0 ITU-T G.709/Y.1331 2009-12-22 15 11.1002/1000/10398 3.1 ITU-T G.709/Y.1331 (2009) Cor. 1 2010-07-29 15 11.1002/1000/10875 3.2 ITU-T G.709/Y.1331 (2009) Amd. 1 2010-07-29 15 11.1002/1000/10874 3.3 ITU-T G.709/Y.1331 (2009) Amd. 2 2011-04-13 15 11.1002/1000/11115 4.0 ITU-T G.709/Y.1331
12、2012-02-13 15 11.1002/1000/11485 4.1 ITU-T G.709/Y.1331 (2012) Cor. 1 2012-10-29 15 11.1002/1000/11776 4.2 ITU-T G.709/Y.1331 (2012) Amd. 1 2012-10-29 15 11.1002/1000/11774 4.3 ITU-T G.709/Y.1331 (2012) Amd. 2 2013-10-22 15 11.1002/1000/11982 4.4 ITU-T G.709/Y.1331 (2012) Amd. 3 2014-12-05 15 11.100
13、2/1000/12363 4.5 ITU-T G.709/Y.1331 (2012) Cor. 2 2015-01-13 15 11.1002/1000/12365 4.6 ITU-T G.709/Y.1331 (2012) Amd. 4 2015-01-13 15 11.1002/1000/12364 _ * To access the Recommendation, type the URL http:/handle.itu.int/ in the address field of your web browser, followed by the Recommendations uniq
14、ue ID. For example, http:/handle.itu.int/11.1002/1000/11830-en. ii Rec. ITU-T G.709/Y.1331 (2012)/Cor.2 (01/2015) FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications, information and communication technologies (ICTs). T
15、he ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of ITU. ITU-T is responsible for studying technical, operating and tariff questions and issuing Recommendations on them with a view to standardizing telecommunications on a worldwide basis. The World Telecommunication Stand
16、ardization Assembly (WTSA), which meets every four years, establishes the topics for study by the ITU-T study groups which, in turn, produce Recommendations on these topics. The approval of ITU-T Recommendations is covered by the procedure laid down in WTSA Resolution 1. In some areas of information
17、 technology which fall within ITU-Ts purview, the necessary standards are prepared on a collaborative basis with ISO and IEC. NOTE In this Recommendation, the expression “Administration“ is used for conciseness to indicate both a telecommunication administration and a recognized operating agency. Co
18、mpliance with this Recommendation is voluntary. However, the Recommendation may contain certain mandatory provisions (to ensure, e.g., interoperability or applicability) and compliance with the Recommendation is achieved when all of these mandatory provisions are met. The words “shall“ or some other
19、 obligatory language such as “must“ and the negative equivalents are used to express requirements. The use of such words does not suggest that compliance with the Recommendation is required of any party. INTELLECTUAL PROPERTY RIGHTSITU draws attention to the possibility that the practice or implemen
20、tation of this Recommendation may involve the use of a claimed Intellectual Property Right. ITU takes no position concerning the evidence, validity or applicability of claimed Intellectual Property Rights, whether asserted by ITU members or others outside of the Recommendation development process. A
21、s of the date of approval of this Recommendation, ITU had received notice of intellectual property, protected by patents, which may be required to implement this Recommendation. However, implementers are cautioned that this may not represent the latest information and are therefore strongly urged to
22、 consult the TSB patent database at http:/www.itu.int/ITU-T/ipr/. ITU 2015 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without the prior written permission of ITU. Rec. ITU-T G.709/Y.1331 (2012)/Cor.2 (01/2015) 1 Recommendation ITU-T G.709/Y.1331 Inte
23、rfaces for the optical transport network 1) Clause 7.3: Bit rates and capacity Modify the notes in Table 7-9 as follows: Table 7-9 Number of tributary slots required for ODUj into HO OPUk # 2.5G tributary slots # 1.25G tributary slots LO ODU OPU2 OPU3 OPU1 OPU2 OPU3 OPU4 ODU0 1 1 1 1 ODU1 1 1 2 2 2
24、ODU2 4 8 8 ODU2e 9 8 ODU3 31 ODUflex(CBR) ODUflex(IB SDR) ODUflex(IB DDR) ODUflex(IB QDR) ODUflex(FC-400) ODUflex(FC-800) ODUflex(FC-1600) ODUflex(3G SDI) (2 970 000) ODUflex(3G SDI) (2 970 000/1.001) Note 1 3 5 4 7 3 3 Note 2 3 5 9 4 7 12 3 3 Note 3 2 4 8 4 7 11 3 3 ODUflex(GFP) n n n NOTE 1 Number
25、 of tributary slots = Ceiling(ODUflex(CBR) nominal bit rate/(TODTU2.ts nominal bit rate) (1+ODUflex(CBR) bit-rate tolerance)/(1HO OPU2 bit-rate tolerance). NOTE 2 Number of tributary slots = Ceiling(ODUflex(CBR) nominal bit rate/(TODTU3.ts nominal bit rate) (1+ODUflex(CBR) bit-rate tolerance)/(1HO O
26、PU3 bit-rate tolerance). NOTE 3 Number of tributary slots = Ceiling(ODUflex(CBR) nominal bit rate/(TODTU4.ts nominal bit rate) (1+ODUflex(CBR) bit-rate tolerance)/(1HO OPU4 bit-rate tolerance). NOTE 4 T represents the transcoding factor. Refer to clauses 17.7.3, 17.7.4 and 17.7.5. ITU-T Y-SERIES REC
27、OMMENDATIONS GLOBAL INFORMATION INFRASTRUCTURE, INTERNET PROTOCOL ASPECTS AND NEXT-GENERATION NETWORKS GLOBAL INFORMATION INFRASTRUCTURE General Y.100Y.199 Services, applications and middleware Y.200Y.299 Network aspects Y.300Y.399 Interfaces and protocols Y.400Y.499 Numbering, addressing and naming
28、 Y.500Y.599 Operation, administration and maintenance Y.600Y.699 Security Y.700Y.799 Performances Y.800Y.899 INTERNET PROTOCOL ASPECTS General Y.1000Y.1099 Services and applications Y.1100Y.1199 Architecture, access, network capabilities and resource management Y.1200Y.1299 Transport Y.1300Y.1399 In
29、terworking Y.1400Y.1499 Quality of service and network performance Y.1500Y.1599 Signalling Y.1600Y.1699 Operation, administration and maintenance Y.1700Y.1799 Charging Y.1800Y.1899 IPTV over NGN Y.1900Y.1999 NEXT GENERATION NETWORKS Frameworks and functional architecture models Y.2000Y.2099 Quality
30、of Service and performance Y.2100Y.2199 Service aspects: Service capabilities and service architecture Y.2200Y.2249 Service aspects: Interoperability of services and networks in NGN Y.2250Y.2299 Enhancements to NGN Y.2300Y.2399 Network management Y.2400Y.2499 Network control architectures and protoc
31、ols Y.2500Y.2599 Packet-based Networks Y.2600Y.2699 Security Y.2700Y.2799 Generalized mobility Y.2800Y.2899 Carrier grade open environment Y.2900Y.2999 FUTURE NETWORKS Y.3000Y.3499 CLOUD COMPUTING Y.3500Y.3999 For further details, please refer to the list of ITU-T Recommendations. Printed in Switzer
32、land Geneva, 2015 SERIES OF ITU-T RECOMMENDATIONS Series A Organization of the work of ITU-T Series D General tariff principles Series E Overall network operation, telephone service, service operation and human factors Series F Non-telephone telecommunication services Series G Transmission systems a
33、nd media, digital systems and networks Series H Audiovisual and multimedia systems Series I Integrated services digital network Series J Cable networks and transmission of television, sound programme and other multimedia signals Series K Protection against interference Series L Construction, install
34、ation and protection of cables and other elements of outside plant Series M Telecommunication management, including TMN and network maintenance Series N Maintenance: international sound programme and television transmission circuits Series O Specifications of measuring equipment Series P Terminals a
35、nd subjective and objective assessment methods Series Q Switching and signalling Series R Telegraph transmission Series S Telegraph services terminal equipment Series T Terminals for telematic services Series U Telegraph switching Series V Data communication over the telephone network Series X Data networks, open system communications and security Series Y Global information infrastructure, Internet protocol aspects and next-generation networks Series Z Languages and general software aspects for telecommunication systems
