4200 MC

4200

4200 RSCoreDirector CI CoreDirector

4200 SeriesCoreDirector Family

6500 14-slot

6500 7-slot

6500 2-slot

6500 32-slot 54305410

5400 Series6500 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 backbonenetwork, where traffic was a mix of 10G wavelengths, OC-192 SONET rings, andmesh 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

Dep

loye

d W

avel

eng

ths

Pure 10G Endpoint Grooming

(10/40/100G)

OTN Grooming

(10/40/100G)

Endpoint Grooming (10/100G)

OTNGrooming (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

ClientSignal

ClientSignal

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

TCMiOverhead

TCM provides nested performance monitoring for hierarchical operations and sectionalization.

Tandem Connection Monitoring (TCM)

Equipment vendors typically also offer proprietary enhancedFEC 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

MobileBackhaul

1GbE, 10GbE Retailand Wholesale

Data Center

Government,Research and

Education

RouterInterconnection

CPE

CPE

CPE

CPE

IP

IP

IP

IP

IP

IP

IPIP

IP

IP

IP

IP

IP

IP

IP

CPE

IP

ResidentialServicesBackhaul

IP

OTN Applications

Ethernet/IPServicesBackhaul

ODUkDAPI

(destination)

Frame Alignment MFAS SM GCC0 RES

RES TCM6 TCM5 TCM4 TCMACT 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)

OperatorSpecific

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-receiveConnection 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 OTNStandard Bit Rates

ITU G.Sup43Non-standard Bit Rates

OTU Bit Rate Capacity

ODU

OMS

OTS OTS OTS OTS

OMS

OCh and OTU

ElectricalSwitch

ElectricalSwitch

ROADM OLA OLAROADM ROADM

service switches

OTN Layers

ACT Activation/deactivation control channelAMP Asynchronous Mapping ProcedureAPS Automatic Protection SwitchingBDI Backward Defect IndicationBEI Backward Error IndicationBIAE Backward Incoming Alignment Error BIP-8 Bit Interleaved Parity – level 8BMP Bit-synchronous Mapping ProcedureCM Connection MonitorCMGPON Continuous Mode GPONDAPI Destination Access Point Identifier

OTS Optical Transmission SectionOTN Optical Transport NetworkOTU Optical Channel Transport UnitPCC Protection Communication ChannelPM Path MonitorPSI Payload Structure Identifier PT Payload TypeQDR Quad Data RateRES Reserved for future int’l standardizationROADM Reconfigurable Optical Add-Drop MultiplexerRS Reed-Solomon

EXP ExperimentalFA Frame AlignmentFAS Frame Alignment SignalFC Fibre ChannelFEC Forward Error CorrectionFTFL Fault Type and Fault LocationGbE Gigabit EthernetGCC General Communications ChannelGFP Generic Framing ProcedureGMP Generic Mapping ProcedureGPON Gigabit Passive Optical Network

IAE Incoming Alignment ErrorIB InfiniBand

IP Internet ProtocolITU International Telecommunications UnionJC Justification ControlLAN Local Area NetworkMAC Media Access ControlMFAS Multi-Frame Alignment SignalMPLS Multi-Protocol Label SwitchingNE Network ElementNJO Negative Justification Opportunity

SAPI Source Access Point IdentifierSDH Synchronous Digital HierarchySDR/DDR Single Data Rate/Double Data RateSONET Synchronous Optical NetworkSM Section MonitorSTAT StatusSTM Synchronous Transport ModuleTCM Tandem Connection MonitorTTI Trail Trace IdentifierUNI User-Network InterfaceWAN Wide Area Network C

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Glossary

NNI Network-Network InterfaceOC Optical CarrierOCC Optical Carrier ChannelOCh Optical ChannelODU Optical Channel Data UnitOH OverheadOLA Optical Line AmplifierOMS Optical Multiplex SectionOOS OTM Overhead SignalOPU Optical Channel Payload UnitOTM 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

ODU1e10GbE OTU1e

ITU-T OTN Hierarchy

ODU1 (L)

ODU2 (L)

ODU2e (L)

Client

OMSOH

OTSOH

Adaptation

Optical Multiplex Section (OMS)

Optical Transmission Section (OTS)

Optical Carrier Channel (OCC)

OTMOverhead

Signal(OOS)

Analog

DigitalThe OTM is the information structure that is transported across the OTN node interface.

For Management

ODUOH OCh Data Unit (ODU) Payload

OTUOH FECOCh Transport Unit (OTU) Payload

OCh Payload Unit (OPU) PayloadOPUOH

Optical Channel (OCh)OChOH

SONET/SDH, Ethernet,IP/MPLS, etc…

For Client Service Mapping

For Switching andMultiplexing

For Transmission

OCCOH

OCCOH

Optical Transport Module (OTM)

The Optical Transport Network (OTN) defined in ITU G.709, allows network operators to converge networks through seamlesstransport of the numerous types of legacy protocols while providing the flexibility required to support future client protocols.

OTNWrapper

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