Evolving Converged Optical Ethernet - Internet2 · PDF fileEvolving Converged Optical Ethernet...

© Ciena Confidential and Proprietary

Evolving Converged Optical Ethernet

Jim Archuleta Ciena Corporation.

2 © Ciena Confidential and Proprietary

Changing Requirements

•  Add new connectivity

•  Support increased scale

•  Provide Higher Performance

Challenges •  Capital Expenditure – minimize

up front and incremental cost

•  Must simplify operational complexity

Needed Response •  Adapt to Demand Uncertainty

•  Quickly activate new connectivity

•  Continuously upgrade bandwidth

Challenges we hear from our R&E customers §  Must Adapt to new requirements with minimal incremental cost or disruption

§  100G readiness, availability and performance are new state of the art differentiators

§  Integration of switching and transport, with the right balance of both.

§  Close vendor partnership ensures success

§  Services and support must flexibly support unique requirements of customers and community members


NextGen Optical Core Architecture Vision Automated Photonic, OTN, and Packet Switching

High Speed Traffic Demands at Photonic Layer Low-Med Speed Traffic Demands at OTN Layer Core Router Interconnect at the OTN/Packet Tunnel layer

10G/40G/100G Photonic Mesh

Low-MedSpeedClients

HighSpeedClients

Analog/Photonic OTN

DomainMgmt &Planning/DesignTools

Packet Layer

Digital OTN Layer

40/100G Transmission

Multi-LayerControl Plane

or 6500

or 6500


(0,0) (0,1)

(1,1) (1,1)

Q

I (0,0) (0,1)

(1,0) (1,1)

Q

I

f-Df f+Df

(0,0) (0,1)

(1,1) (1,0)

Q

I

X and Y Pol

X and Y Pol

NextGen MODULATION

PLATFORM + SERVICE FLEXIBILITY

+ SCALE

HYBRID SWITCHING

Multi-Level, Phase, Polarization Modulation Coherent Rx – Phase & Amplitude recovery

Colorless Add/Drop + DIA for Mesh EROADM + TOADM for low Cost

OC-3/12/48/192/768 ODU0/ODU1/ODU2/ODU3, 1GE/10GE/40GE/100GE

6500 2,7,14,32

Amp WSS WSS

Colorless Mux/Demux

λ1,n λ1,n

Amp

BEST IN CLASS PHOTONICS

Ciena Technology Investments for Converged Optical Ethernet

Service Provisioning

Network Service Visualization

Service Assurance

Layer 2

Layer 0

Layer 1

Multilayer Control & Automation

5410

5410, 5430

Supports layer 0, 1 and 2 services Built on G.ASON, GMPLS & OIF standards

SAOS Software

OTN Fabric

Adapter

ODUx

ODUy

ODUz

. .

Optical Engine

FEC & Framer

OTN Mapper

OTN Fabric

Adapter

ODUx

ODUy

ODUz

. .

Packet Fabric

Adapter

PKT

PKT

PKT

. .

Ethernet Switch Packet

Fabric Adapter

PKT

PKT

PKT

. . Optical Engine

FEC & Framer

Packet/OTN Fabrics

Optical Engine

OTN mapper, FEC & Framer

ODUx

ODUy

PKT

PKT

Packet /OTN FIC

OTN FLOWS

PACKET FLOWS

SONET/SDH Etherne

t

OTN

Ethernet

OTN/Packet Switch


Ciena Adaptive Optical Engine

Electronic Disp Compensation for Network Simplification

Wavelength Agility for Service Velocity/Resilience

Automation & Control Plane for OPEX Simplification

Coherent Technology for Scale

• Scaling to 40/100G and beyond

•  Intelligent Receiver • More bits per symbol • Real-time access to

system health

• Lowering costs • Low-cost CMOS • No re-engineering • 40G/100G over challenged plant • Real time traffic optimization •  “100G with 10G planning rules”

• Service Velocity • Any wave, anywhere • Directionless ROADMs

for optical restoration • Coherent Rx àcolorless ROADMs:

No need for tunable filters

• Plug and Play + Self Healing • Point-click wavelength provisioning • Operational simplification

Direct Detection (DD)

DD + DWDM

Coherent + DWDM

Gb/s

Tb/s

Pb/s

C-band Capacity


à  Next generation optical technology should facilitate wavelength switching in mixed fiber networks

à  As wavelengths traverse different distances across a variety of fiber types bulk optical compensation becomes insufficient

à  eDCO brings dispersion management cost under control and increase line system flexibility "   Real-time performance

optimization on each wavelength: Improved specs

"   Greatly facilitated accommodation of mixed fiber applications

"   Enables agility and wavelength re-route capabilities with or without control plane

SMF-28

SMF-28

SMF-28

E-LEAF

E-LEAF

E-LEAF

TWc TWc

ROADM ROADM

ROADM

ROADM

ROADM

ROADM

Electronic Dynamically Compensating Optics (eDCO)

Bulk optical dispersion

compensation will not suffice


ROADM Roadmap achieving Colorless drop flexibility

Late1990’s ROADM Node

Colorless CMD • N

Colorless

Multi-degree ROADM • Flexible wavelength routing

between WAN ports • Fixed channel filters for

connecting client ports to specific WAN ports

Amp WSS WSS Amp

West Channel

Mux

λ1 λn

East Channel

Mux

λ1 λn

Late 2000’s Direction Independent ROADM Node (DIA)

Directionless ROADM • Flexible connection of add/

drop channels to any WAN ports

• Allows for the manual or dynamic re-routing of wavelengths under failure conditions.

Amp WSS WSS Amp

Channel Mux

λ1 λn

2010’s Colorless ROADM Node

Colorless ROADM • Reconfigurable to add/drop

any wavelengths on any port

• Decouples planning from deployment

• Wavelength defrag • Remove human intervention

Amp WSS WSS Amp

Colorless Mux

λ1,n λ1,n

Filter

Filter


§  A multilayer automation and restoration control architecture

§  Supports layer 0, 1 and 2 services

§  Built on ITU G.ASON, IETF GMPLS and OIF standards

§  Implemented across NE, EMS and OSS

System Architecture Management & Control Plane Overview

Service Provisioning

Network Service Visualization

Service Assurance

Configuration Inventory Fault & Service Management Planning

TMF MTOSI NBIF

Layer 2

Layer 0

Layer 1

Vertical Integration through Transport, Control and Management Planes


5400 Product Family: Converged Multi-service Switching and Aggregation

Scale and Convergence

Granular OTN

FastMesh Control Plane

Virtual Switching L2: Carrier Ethernet

L1: Optical Switching/OTN

L0: WDM

5400 Family 5430: 3.6T 5410: 1.2T

MPLS

Packet Control Plane

Connection Oriented Ethernet

FlexiPorts

Packet Optical Transport

Optical Switching

Scalability

High Availability

40/100G DWDM

5410


Beyond 100GbE: Coherent Networking – 3D Capacity Evolution

Three mechanisms to grow capacity à Challenge the baud rate à Challenge the bit/symbol à Challenge fixed λ spacing

Bits

per

sym

bol

Symbols per second

QAM, M-ARY

freq

Exploit all 3Ds in order to Optimize Spectral Efficiency, Performance, Cost & Reliability

“Super Channels”

Polarization Diversity & OFDM

Δf

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