光伝達網（OTN）の基礎と 最新標準化動向 - MPLS

1 mpls JAPAN 2010. OTN .. 2010 11 1 . NTT .. OTN .. ITU-T OTN . ITU-T . OTN . OTN . OTN .. OTN .. NTT . 2. OTN . OTN . OTN Optical Transport network ITU-T .. km .. 1000km Tbit/s . NTT . 3.. 10 Gbit/s x 80 = 800 Gbit/s 40 Gbit/s x 40 = Tbit/s 100 Gbit/s x 80 = 8 Tbit/s OTN . : 10 GbE : OTU3, 43 Gbit/s x 40 : 10 GbE .. NTT . 4.. A.. Inter-domain interface (IrDI), Intra-domain interface (IaDI). A B. IrDI. IaDI. NTT . 5.. WDM.. PDH SDH SDH & OTN. 1960 1970 1980 1990 2000 2010 . PDH: Plesiochronous Digital Hierarchy . SDH: Synchronous Digital Hierarchy . NTT . 6. ITU . International Telecommunication Union ITU (ITU Plenipotentiary Conference).

2 Radio Telecom Telecom Sector ITU-R Communication ITU-T Standardization ITU-D Development Study Group TSAG SG2 SG3 SG15 SG17. Optical and other transport network infrastructures Working Party WP1 WP2 WP3. Access network Optical physical infrastructure and Transport network transport technologies structures Question Q3 Q9 Q10 Q11 Q12 Q13 Q14 Q15. Signal structures, interfaces and interworking for transport networks NTT . 7. SG15 2009-2012 . SG15 . WP WP title Questions Q1/15:Coordination of Access network Transport standards Access network Q2/15 Optical systems for fibre access networks WP1. transport Q4/15 Transceivers for customer access and in-premises networking systems on metallic conductors Q5/15 Characteristics and test methods of optical fibres and cables Q6/15 Characteristics of optical systems for terrestrial transport networks Q7/15 Characteristics of optical components and subsystems Optical physical Q8/15 Characteristics of optical fibre submarine cable systems WP2 infrastructure and Q16/15 Optical physical layer technologies Q17/15 Physical network planning Q18/15 Development of optical networks in the access area Q19/15 Protection and security of other aspects of

3 Outside plant Q3/15 General characteristics of transport networks Q9/15 Transport equipment and network protection/restoration Q10/15 Transport network OAM. Transport network Q11/15 Signal structures, interfaces and interworking for transport networks WP3. structure Q12/15 Transport network architectures Q13/15 network synchronization and time distribution performance Q14/15 Management and control of transport systems and equipment Q15/15 Test and measurement techniquesWP: Working Party Q: Question and instrumentation NTT . 8. Optical Transport network (OTN) . WDM .. SDH .. OTN . SDH SDH. OTN .. SDH.

4 SDH.. OTN . NTT . 9. OTN . OH . FEC .. SDH . OPUk . Optical Channel Payload Unit-k OH . ODUk - . Optical Channel Data Unit-k OH . OTUk Optical Channel Transport Unit-k OH FEC . OTN , . Table 7-1 OTU types and capacity OTU type OTU nominal bit rate OTU bit-rate tolerance OTU1 255/238 2 488 320 kbit/s OTU2 255/237 9 953 280 kbit/s 20 ppm OTU3 255/236 39 813 120 kbit/s NOTE The nominal OTUk rates are approximately: 2 666 kbit/s (OTU1), 10 709 kbit/s (OTU2) and 43 018 kbit/s (OTU3). NTT . 10. OTN . ITU-T Interfaces for the Optical Transport network .. 4080. FEC. , . NTT . 11.. Interfaces for the Optical Transport network .

5 OTN . 2009/10. SG15 . 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010. 1 2 3 (2001) (2003) (2003) (2007) (2008) (2009).. SDH .. SDH GbE 10 GbE 10G-FC 8G-FC 16G-FC 40 GbE 100 GbE. NTT . 12.. SDH OTN .. 10G / 40G / 100G 10G . OTN OTN .. 100 GbE ODU4/OTU4 . 40 GbE Transcoding . 10 GbE ODU2e . 4x 10 GbE ODU3e/OTU3e . GbE ODU0 . FC-1200 Transcoding + ODU2e . NTT . 13.. ODU(L) ODU(H). 100 GbE ODU4 OTU.. 100 GbE ODU4 ODU4 OTU4 Gb/s 40 GbE 10G-FC . 10 GbE ODU3e . Transcoding . ODU3e OTU3e Gb/s 40 GbE . STM-256. ( Gb/s) ODU3 ODU3 OTU3 Gb/s 10G-FC . 10 GbE. ( Gb/s) ODU2e ODU2e OTU2e Gb/s STM-64. ( Gb/s) ODU2 ODU2 OTU2 Gb/s 10 GbE ODU2e.

6 STM-16. ( Gb/s) ODU1 ODU1 OTU1 Gb/s GbE ODU0 .. GbE ODU0.. NTT . 14.. OTN .. ODUflex . GMP . GMP: Generic Mapping Procedure NTT . 15. ODUflex GMP. ODU(L) ODU(H) OTU.. ODU4 ODU4 OTU4 Gb/s ODU(L) . ODU(L) ODU(H) GMP ODU3e OTU3e Gb/s . Generic Mapping Procedure . ODU3 ODU3 OTU3 Gb/s 15 Gb/s BMP. ODUflex ex. 15 Gb/s . ODU2e ODU2e OTU2e Gb/s ODU2 ODU2 OTU2 Gb/s . ODUflex ex. 5 Gb/s . 5 Gb/s flexible . ODU1 ODU1. OTU1 Gb/s .. ODU0. NTT . 16. NTT/Japan . OTN .. NTT/Japan . 10 GbE 10 GbE . ODU2e .. 4x 10 GbE 40G 4x 10 GbE OTN .. ODU3e . 40 GbE ODU3 40 GbE .. 100 GbE 100G . 100 GbE . OTU4 . NTT . 17. OTN.

7 100 Gbit/s/ .. 100 Gbit/s 80 8 Tbit/s . ODU0 Gbit/s . ODU0 Gbit/s .. ROADM & ODU-XC . ROADM: Reconfigurable Optical Add-Drop Multiplexer ODU-XC: ODU Cross-connect ROADM ODU-XC .. NTT . 18.. OTN WDM OTN .. ITU-T SG15 OTN OTN .. ODUflex GMP . OTN .. 100G .. NTT . 19.