TRECGSup4312IMSWE.docx

1、TRECGSup4312IMSWEInternational Telecommunication UnionITU-TSeriesGTELECOMMUNICATIONSTANDARDIZATION SECTOROF ITUSupplement43(12/2008) SERIES G: TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKSTransport of IEEE 10GBASE-R in optical transport networks (OTN)ITUT G-series Recommendations Supp

2、lement43ITU-T G-SERIES RECOMMENDATIONSTRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKSINTERNATIONAL TELEPHONE CONNECTIONS AND CIRCUITSG.100G.199GENERAL CHARACTERISTICS COMMON TO ALL ANALOGUE CARRIER-TRANSMISSION SYSTEMSG.200G.299INDIVIDUAL CHARACTERISTICS OF INTERNATIONAL CARRIER TELEPHO

3、NE SYSTEMS ON METALLIC LINESG.300G.399GENERAL CHARACTERISTICS OF INTERNATIONAL CARRIER TELEPHONE SYSTEMS ON RADIO-RELAY OR SATELLITE LINKS AND INTERCONNECTION WITH METALLIC LINESG.400G.449COORDINATION OF RADIOTELEPHONY AND LINE TELEPHONYG.450G.499TRANSMISSION MEDIA AND OPTICAL SYSTEMS CHARACTERISTIC

4、SG.600G.699DIGITAL TERMINAL EQUIPMENTSG.700G.799DIGITAL NETWORKSG.800G.899DIGITAL SECTIONS AND DIGITAL LINE SYSTEMG.900G.999QUALITY OF SERVICE AND PERFORMANCE GENERIC AND USER-RELATED ASPECTSG.1000G.1999TRANSMISSION MEDIA CHARACTERISTICSG.6000G.6999DATA OVER TRANSPORT GENERIC ASPECTSG.7000G.7999PACK

5、ET OVER TRANSPORT ASPECTSG.8000G.8999ACCESS NETWORKSG.9000G.9999For further details, please refer to the list of ITU-T Recommendations.Supplement43 to ITU-T G-series RecommendationsTransport of IEEE 10GBASE-R in optical transport networks (OTN)SummarySupplement 43 to ITU-T G-series Recommendations d

6、escribes several approaches for transport of 10G LAN PHY over SDH and OTN transport networks. As some of these approaches use rates, formats and mappings that are not defined in ITU-T Recommendations, this supplement analyses various attributes of the different approaches to provide guidance regardi

7、ng their applicability to different network contexts.This supplement relates to Recommendations ITU-T G.872, G.709/Y.1331, G.798, G.707/Y.1322, G.8010/Y.1306, G.8012/Y.1308, G.959.1 and G.696.1SourceSupplement43 to ITUT G-series Recommendations was agreed on 12December2008 by ITUTStudy Group15 (2009

8、-2012).FOREWORDThe International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications, information and communication technologies (ICTs). The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of ITU. ITU-T is responsible fo

9、r studying technical, operating and tariff questions and issuing Recommendations on them with a view to standardizing telecommunications on a worldwide basis.The World Telecommunication Standardization Assembly (WTSA), which meets every four years, establishes the topics for study by the ITUT study

10、groups which, in turn, produce Recommendations on these topics.The approval of ITU-T Recommendations is covered by the procedure laid down in WTSA Resolution1.In some areas of information technology which fall within ITU-Ts purview, the necessary standards are prepared on a collaborative basis with

11、ISO and IEC.NOTEIn this publication, the expression Administration is used for conciseness to indicate both a telecommunication administration and a recognized operating agency.Compliance with this publication is voluntary. However, the publication may contain certain mandatory provisions (to ensure

12、 e.g., interoperability or applicability) and compliance with the publication is achieved when all of these mandatory provisions are met. The words shall or some other obligatory language such as must and the negative equivalents are used to express requirements. The use of such words does not sugge

13、st that compliance with the publication is required of any party.INTELLECTUAL PROPERTY RIGHTSITU draws attention to the possibility that the practice or implementation of this publication may involve the use of a claimed Intellectual Property Right. ITU takes no position concerning the evidence, val

14、idity or applicability of claimed Intellectual Property Rights, whether asserted by ITU members or others outside of the publication development process.As of the date of approval of this publication, ITU had not received notice of intellectual property, protected by patents, which may be required t

15、o implement this publication. However, implementers are cautioned that this may not represent the latest information and are therefore strongly urged to consult the TSB patent database at http:/www.itu.int/ITU-T/ipr/.ITU2009All rights reserved. No part of this publication may be reproduced, by any m

16、eans whatsoever, without the prior written permission of ITU.CONTENTS Page1 Scope 12 References 13 Definitions 24 Abbreviations and acronyms 25 Conventions 36 Standard mappings 36.1 10GBASE-W (WAN PHY) via STM-64 36.2 GFP-F mapping of 10GBASE-R (LAN PHY) payload only into OPU2 37 Non-standard mappin

17、gs 37.1 Bit transparent mapping of 10GBASE-R signal into OPU2e 47.2 Bit transparent mapping of 10GBASE-R signal into OPU1e 47.3 ITU-T G.709 bit-rate compliant information transparent transport of payload and preamble 48 Characteristics of alternative mappings 48.1 ITU-T G.709 bit-rate compliant 68.2

18、 Inter-domain/intra-domain interfaces 68.3 Timing and synchronization 68.4 Optical characteristics 68.5 Multiplexing, multi-service 78.6 Transparency 78.7 BER monitoring 89 Multiplexing four ODU2e signals into ODU3e 99.1 Asynchronous bit-transparent mapping of 4 x ODU2e signal intoOPU3e1 99.2 Asynch

19、ronous generic mapping of four ODU2e signals into OPU3e2 17Supplement43 to ITU-T G-series RecommendationsTransport of IEEE 10GBASE-R in optical transport networks (OTN)1 ScopeThis supplement describes different approaches for transport of 10GBASE-R signals in optical transport networks via an ODU2 o

20、r non-standard ODU2-like frame format (i.e., rates, formats and mappings that are not defined in ITU-T Recommendations). This supplement includes descriptions related to multiplexing the non-standard ODU2-like structures into ODU3-like signals. Different attributes of the varying solutions are descr

21、ibed to help provide guidance on which approaches are appropriate to which network contexts.Including a currently non-standard mapping in this supplement does not preclude considering that mapping for standardization at a future date.2 ReferencesITU-T G.694.1 Recommendation ITU-T G.694.1 (2002), Spe

22、ctral grids for WDM applications: DWDM frequency grid.ITU-T G.696.1 Recommendation ITU-T G.696.1 (2005), Longitudinally compatible intradomain DWDM applications.ITU-T G.707 Recommendation ITU-T G.707/Y.1322 (2007), Network node interface for the synchronous digital hierarchy (SDH).ITU-T G.709 Recomm

23、endation ITU-T G.709/Y.1331 (2003), Interfaces for the Optical Transport Network (OTN).ITU-T G.798 Recommendation ITU-T G.798 (2006), Characteristics of optical transport network hierarchy equipment functional blocks.ITU-T G.870 Recommendation ITU-T G.870/Y.1352 (2004), Terms and definitions for opt

24、ical transport networks (OTN).ITU-T G.872 Recommendation ITU-T G.872 (2001), Architecture of optical transport networks.ITU-T G.959.1 Recommendation ITU-T G.959.1 (2006), Optical transport network physical layer interfaces.ITU-T G.7041 Recommendation ITU-T G.7041/Y.1303 (2008), Generic framing proce

25、dure (GFP).ITU-T G.8001 Recommendation ITU-T G.8001/Y.1354 (2006), Terms and definitions for Ethernet frames over Transport (EoT).ITU-T G.8010 Recommendation ITU-T G.8010/Y.1306 (2004), Architecture of Ethernet layer networks.ITU-T G.8012 Recommendation ITU-T G.8012/Y.1308 (2004), Ethernet UNI and E

26、thernet NNI.ITU-T G.8251 Recommendation ITU-T G.8251 (2001), The control of jitter and wander within the optical transport network (OTN).IEEE 802.3 IEEE 802.3-2005, Information Technology Telecommunications and Information Exchange Between Systems LAN/MAN Specific Requirements Part 3: Carrier sense

27、multiple access with collision detection (CSMA/CD) access method and physical layer specifications. 3 DefinitionsNone.4 Abbreviations and acronymsThis supplement uses the following abbreviations and acronyms:CBR10G Constant Bit Rate signal of 9 953 280 kbit/s 20 ppm (see ITU-T G.870)CBR2G5 Constant

28、Bit Rate signal of 2 488 320 kbit/s 20 ppm (see ITU-T G.870)FCS Frame Check SequenceFEC Forward Error CorrectionGFP Generic Framing ProcedureGMP Generic Mapping ProcedureIaDI Intra-Domain Interface (see ITU-T G.870)IPG Inter-Packet Gap IrDI Inter-Domain Interface (see ITU-T G.870)JC Justification Co

29、ntrolJOH Justification OverheadMAC Media Access ControlMFAS MultiFrame Alignment SignalMSI Multiplex Structure IdentifierNJO Negative Justification OpportunityOCC Optical Channel Carrier with full functionality (see ITU-T G.870)OCCr Optical Channel Carrier with reduced functionality (see ITU-T G.870

30、)ODU Optical Data UnitOH OverheadOPU Optical Payload UnitOTU Optical Transmission UnitPHY Physical layerPJO Positive Justification OpportunityPT Payload TypeSDH Synchronous Digital HierarchySFD Start-of-Frame Delimiter SONET Synchronous Optical Network TS Tributary SlotTSOH Time Slot OverheadWAN Wid

31、e Area Network5 ConventionsTransmission order: The order of transmission of information in all the figures in this supplement is first from left to right and then from top to bottom. Within each byte, the most significant bit is transmitted first. The most significant bit (bit 1) is illustrated at the left in all the figures.6 Standard mappings6.1 10GBASE-W (WAN PHY) via STM-64IEEE 802.3 has defined a WAN interface for compatibility with SDH/SONET transpor