4200 MC 4200 4200 RS CoreDirector CI CoreDirector 4200 Series CoreDirector Family 6500 14-slot 6500 7-slot 6500 2-slot 6500 32-slot 5430 5410 5400 Series 6500 Series Ciena’s OTN Products > Upgrading the 10G DWDM system to 40G or 40/100G, with higher capacity wavelengths deployed only in sites where traffic demands warranted the change, resulted in an overall wavelength reduction of more than 55%. > The addition of OTN switching provides an incremental 24-40% wavelength efficiency gain over a transponder architecture, and rises in importance as higher line rates are introduced into the network. 40% 24% 55+% A network study was completed on a North American carrier’s national backbone network, where traffic was a mix of 10G wavelengths, OC-192 SONET rings, and mesh circuits. Over 3,000 wavelengths were deployed across the network. *Above results are based on real network data. Other network models will result in different results based on actual inputs. 3,500 3,000 2,500 2,000 1,500 1,000 500 Deployed Wavelengths Pure 10G Endpoint Grooming (10/40/100G) OTN Grooming (10/40/100G) Endpoint Grooming (10/100G) OTN Grooming (10/100G) 100G 40G 10G North American Backbone Case Study Improving Spectral Efficiency with High Capacity WDM and OTN Switching Path CM User User Operator A Operator B Operator C ODUk Client Signal Client Signal UNI CM NNI CM NNI CM NNI CM TCM6 TCM5 TCM4 TCM3 TCM2 TCM1 TCM6 TCM5 TCM4 TCM3 TCM2 TCM1 TCM6 TCM5 TCM4 TCM3 TCM2 TCM1 TCM6 TCM5 TCM4 TCM3 TCM2 TCM1 TCM6 TCM5 TCM4 TCM3 TCM2 TCM1 QoS of Leased Connection is Monitored by User TCM6 TCM5 TCM4 TCM3 TCM2 TCM1 TCM6 TCM5 TCM4 TCM3 TCM2 TCM1 TCM6 TCM5 TCM4 TCM3 TCM2 TCM1 TCM6 TCM5 TCM4 TCM3 TCM2 TCM1 TCM6 TCM5 TCM4 TCM3 TCM2 TCM1 TCM6 TCM5 TCM4 TCM3 TCM2 TCM1 TCMi Overhead TCM provides nested performance monitoring for hierarchical operations and sectionalization. Tandem Connection Monitoring (TCM) Equipment vendors typically also offer proprietary enhanced FEC options to improve the coding gain to >9dB for a further increase in reach. The ability to turn off FEC is available in transport equipment that is optimized for low-latency applications. Optical Channel (OCh)/Optical Transmission Unit (OTU) Core OTN Mesh Metro Core OTN Mesh Metro Access and Aggregation Mobile Backhaul 1GbE, 10GbE Retail and Wholesale Data Center Government, Research and Education Router Interconnection CPE CPE CPE CPE IP IP IP IP IP IP IP IP IP IP IP IP IP IP IP CPE IP Residential Services Backhaul IP OTN Applications Ethernet/IP Services Backhaul ODUk DAPI (destination) Frame Alignment MFAS SM GCC0 RES RES TCM6 TCM5 TCM4 TCM ACT FTFL TCM3 TCM2 TCM1 PM EXP GCC1 GCC2 APS/PCC RES 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1 2 3 4 Row Column TTI BIP-8 1 2 3 Section, Path & Tandem Connection Monitor SAPI (source) Operator Specific 0 15 16 31 32 63 BEI/BIAE BDI RES BEI/BIAE BDI STAT BEI BDI STAT IAE SM TCMi PM JC JC JC PSI NJO JC JC JC PSI PM & TCM DMp PM 1 2 3 4 5 6 7 8 DM1 DM2 DM3 DM4 DM5 DM6 1 2 3 4 5 6 7 8 TCMi PT RES CSF PM & TCM PM & TCM Near End Far End DMp-transmit DMp-receive DMp-transmit DMp-receive Connection Monitoring End Point OTN Connection requires coordination between the near- and far- end connection monitoring end points. OTN Maintenance – Overhead Bytes OTU OTU Rate OPU Payload Client Signals Type (Gb/s) Rate (Gb/s) OTU1 2.6661 2.48832 STM-1/OC-3, STM-4/OC-12, STM-16/OC-48, FC-100/200, 1GbE, CMGPON OTU1e 11.049 10.3215 10GbE LAN (BMP w/o fixed stuff) OTU2 10.709 9.9953 STM-64/OC-192, FC-400/800, 10GbE WAN, 10GbE LAN (GFP), IB SDR/DDR OTU2e 11.095 10.356 FC-1200, 10GbE LAN (BMP w/fixed stuff) OTU3 43.018 40.150 STM-256/OC-768, 40GbE, IB QDR OTU3e1 44.5709 41.6111 4 x ODU2e (AMP) OTU3e2 44.5833 41.5995 4 x ODU2e (GMP) OTU4 111.80997 104.35597 100GbE ITU G.709 OTN Standard Bit Rates ITU G.Sup43 Non-standard Bit Rates OTU Bit Rate Capacity ODU OMS OTS OTS OTS OTS OMS OCh and OTU Electrical Switch Electrical Switch ROADM OLA OLA ROADM ROADM service switches OTN Layers ACT Activation/deactivation control channel AMP Asynchronous Mapping Procedure APS Automatic Protection Switching BDI Backward Defect Indication BEI Backward Error Indication BIAE Backward Incoming Alignment Error BIP-8 Bit Interleaved Parity – level 8 BMP Bit-synchronous Mapping Procedure CM Connection Monitor CMGPON Continuous Mode GPON DAPI Destination Access Point Identifier OTS Optical Transmission Section OTN Optical Transport Network OTU Optical Channel Transport Unit PCC Protection Communication Channel PM Path Monitor PSI Payload Structure Identifier PT Payload Type QDR Quad Data Rate RES Reserved for future int’l standardization ROADM Reconfigurable Optical Add-Drop Multiplexer RS Reed-Solomon EXP Experimental FA Frame Alignment FAS Frame Alignment Signal FC Fibre Channel FEC Forward Error Correction FTFL Fault Type and Fault Location GbE Gigabit Ethernet GCC General Communications Channel GFP Generic Framing Procedure GMP Generic Mapping Procedure GPON Gigabit Passive Optical Network IAE Incoming Alignment Error IB InfiniBand IP Internet Protocol ITU International Telecommunications Union JC Justification Control LAN Local Area Network MAC Media Access Control MFAS Multi-Frame Alignment Signal MPLS Multi-Protocol Label Switching NE Network Element NJO Negative Justification Opportunity SAPI Source Access Point Identifier SDH Synchronous Digital Hierarchy SDR/DDR Single Data Rate/Double Data Rate SONET Synchronous Optical Network SM Section Monitor STAT Status STM Synchronous Transport Module TCM Tandem Connection Monitor TTI Trail Trace Identifier UNI User-Network Interface WAN Wide Area Network Ciena may from time to time make changes to the products or specifications contained herein without notice. © 7/2011 Ciena ® Corporation. All rights reserved. Glossary NNI Network-Network Interface OC Optical Carrier OCC Optical Carrier Channel OCh Optical Channel ODU Optical Channel Data Unit OH Overhead OLA Optical Line Amplifier OMS Optical Multiplex Section OOS OTM Overhead Signal OPU Optical Channel Payload Unit OTM Optical Transport Module Included in G.Sup43 OTU1 ODU2 (H) OTU2 ODU3 (L) ODU3 (H) OTU3 ODU4 (L) ODU4 (H) OTU4 ODU0 (L) 8 x 32 x 80 x STM-1/OC-3, STM-4/OC-12, FC-100, 1GbE STM-16/OC-48, FC-200 STM-64/OC-192, 10GbE STM-256/OC-768, 40GbE FC-1200, 10GbE 100GbE ODU1 (H) 2 x 3 x 10 x 10 x 2 x Included in revised G.709 40 x ODUflex (L) FC-400, FC-800, Various OTU3e1 ODU3e1 (H) 4 x OTU3e2 ODU3e2 (H) 4 x OTU2e ODU1e 10GbE OTU1e ITU-T OTN Hierarchy ODU1 (L) ODU2 (L) ODU2e (L) Client OMS OH OTS OH Adaptation Optical Multiplex Section (OMS) Optical Transmission Section (OTS) Optical Carrier Channel (OCC) OTM Overhead Signal (OOS) Analog Digital The OTM is the information structure that is transported across the OTN node interface. For Management ODU OH OCh Data Unit (ODU) Payload OTU OH FEC OCh Transport Unit (OTU) Payload OCh Payload Unit (OPU) Payload OPU OH Optical Channel (OCh) OCh OH SONET/SDH, Ethernet, IP/MPLS, etc… For Client Service Mapping For Switching and Multiplexing For Transmission OCC OH OCC OH Optical Transport Module (OTM) The Optical Transport Network (OTN) defined in ITU G.709, allows network operators to converge networks through seamless transport of the numerous types of legacy protocols while providing the flexibility required to support future client protocols. OTN Wrapper Ethernet ODUk SONET/SDH Video Client Ports OTN Advantages > Insulates the network against uncertain service mix by providing transparent native transport of client signals encapsulating all client management information > Performs multiplexing for optimum capacity utilization thereby improving network efficiency > Enables network scalability as well as support for dedicated Ethernet services with service definitions for 1GbE, 10GbE, 40GbE, and 100GbE, with higher rates beginning specification > Provides multi-layer performance monitoring and enhanced maintenance capability for signals traversing multi-operator networks > Provides for long reach using either standard or high gain proprietary FEC > Combined with Intelligent Control Plane, enables automated mesh connectivity and 50ms mesh restoration for Ethernet, OTN, SONET and SDH clients OPTICAL TRANSPORT NETWORK