otn network poster web[1]
TRANSCRIPT
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