The Drive to 100 GigE

51
The Drive to 100-GigE Tuesday, October 2, Dallas Moderator Sterling Perrin Senior Analyst

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100GbE

Transcript of The Drive to 100 GigE

  • The Drive to 100-GigE

    Tuesday, October 2, Dallas

    ModeratorSterling PerrinSenior Analyst

  • Our PanelistsDr. Joseph Berthold

    Vice President, Network ArchitectureCiena

    Dr. Milorad CvijeticVice President & Chief Technology Strategist, Optical Network Systems

    DivisionNEC Corporation of America

    John JaegerGlobal Manager, Business Development

    InfineraJoerg Packeiser

    Director, Global Product Line Management, Optical Transport TestJDSU Communications Test & Measurement

    Dr. Steve TrowbridgeVice Chairman of ITU-T Study Group 15

    ITU

  • Questions and Issues to Consider Whats driving the migration to 100-GigE? What is the likely timeline for this 100-GigE

    migration? At what cost points can the industry produce

    100-GigE products... And more importantly, what are operators willing

    to pay for 100-GigE? Given 100-GigE, what happens to 40 Gig? What are the relevant standards groups for

    100-GigE and what are they doing?

  • Ciena Corporation

    The Path to 100 G Ethernet

    Joe Berthold

    VP Network Architecture

    Office of the CTO

  • Ciena Corporation 5

    Discussion topics

    Motivation for higher speed transport networks (> 10G)

    What can we extrapolate from the 40G experience?

    Network requirements

    Upgrades to existing systems, scaling overall capacity

    Technology readiness

    How may we carry a 100G signal across the WAN?

    Economic feasibility

    What can we expect for the relative cost of 100G?

  • Ciena Corporation 6

    A need for speed: 10GbE, 40Gb, 100GbE

    Confidence:We will fill up the bandwidth just like we fill-up disk space and memory

  • Ciena Corporation 7

    40G Transmission Current Drivers

    40G IP Router interfaces

    Link bandwidth requires N X 10G

    Problems with link aggregation

    Most flows small, distribute nicely

    Large flows from MPLS/IPSEC problematic

    32-40 Ch DWDM ring exhaust

    Multi-access DWDM rings in metro

    Typically 5 nodes, some larger

    At exhaust build entire new ring

    New fiber, amps, ROADMs, installation, space, power,

    Or add a pair of 40G transponders

    Both of these applications support 40G transponder costs > 4X 10G transponder cost

    Aggregation Group Member

    Utilization

  • Ciena Corporation 8

    Mix-n-Match of 10G/40G/100G on Same Fiber System

    10G

    40G

    100G (future)

    ...Channel 40/80

    Channel 1

    Mix & Match 10G, 40G and 100G waves on a fiber as needed using similar engineering rules

    Low revenue per bit for data will not justify new network overbuilds

  • Ciena Corporation 9

    Increased Spectral Efficiency, More Capacity

    Spectral efficiency: more bits, same fiber system, no forklift upgrade

    Higher spectral efficiencyat 100G theoreticallypossible

    Spectral Efficiency

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  • Ciena Corporation 10

    Transport technology readinessPossible technology choices for 100G transmission

    Parallel options suitable for 100G on dedicated fiber, limited distances

    4 X 25G and 10X10G have been discussed

    Negative service provider reaction to parallel networking solutions in MAN/WAN

    Non-scalability of capacity: multiple waves to manage, ROADM port exhaust

    Serial options new technology to improve propagation, spectral efficiency

    Trading speed for complexity starting at 112 Gb/sec

    Polarization multiplexing divide by 2

    Each polarization carries a 56 Gb/s signal

    Phase coding e.g.: Four phase states

    Four phases encode two info bits

    Symbol rate cut in half to 28 Gbaud/sec 00 01 10 11

  • Ciena Corporation 11

    Economic readiness

    Customers would like

    40G transponders at 2.5X 10G transponder cost

    100G transponders at similar proportional savings

    Business case will initially be made based on:

    Economic benefit at the overall network solution level

    Including CAPEX and OPEX for IP, DWDM and fiber

    A reasonable 100G initial economic target: 100G = 2.5 X cost of 40G

    Parity in cost/bit, with improved spectral efficiency

    Definition of acceptable cost ratio with respect to 10G will vary with customer

  • Ciena Corporation

    Thank You

  • The Drive to 100GbE

    John Jaeger, Infinera

  • Optical Expo 2007, Dallas | 14

    100GbE Impact on Network Requirements

    All Drives the need for Cost-effective

    Scalability(6.4+ Tb/s)

    100GbE is the new network

    Fat Pipe

    Client rates outpacing

    Waves

    Universal Carrier Opinion the

    100GbE Standard will be late

    - Data is fueling network growth @ 75% per year

    - Ethernets Value Proposition signals cost-effective focus

    - Past: Client interfaces multiplexed into a

    - 40G was an inflection - 100GbE & nx100GbE

    demand well ahead of single capability

    - Lack of 100GbE impacting service delivery today!

    - 100GbE LAG will be commonplace in 2010/11

    - Emphasis is on cost-effective

    - Lessons to be learned from 40G missteps & approaches

  • Optical Expo 2007, Dallas | 15

    Carrier/Network Operator Input

    Other views on timing of 100GbE: 100GigE Needed for Broadband Customer Aggregation urgently in the

    core by 2009 and across the board by 2011, Jason Weil, Cox Communications, IEEE HSSG April, 07

    2009 timing: Will be a very uncomfortable wait, Donn Lee, Google, IEEE HSSG March 07

    Bundles of 8 means that we will need 100 Gbps ye 2008 / beginning 2009, Ad Bresser, KPN IEEE HSSG May 07

    Work needs to begin on whatever follows 100G as soon as possible,Ted Seely, Sprint Nextel, IEEE HSSG March 07

    Source: Level3, OFC 2007 100GbE Workshop

    YE10 projected scale

  • Optical Expo 2007, Dallas | 16

    Key System Implications Enabling Technologies

    Service Independence & Flexibility The transport network provides an available pool of capacity to be tapped as and when required, completely independent of the service type While not broadly discussed mixing & matching 10GE, nx10GE LAG,

    40G & 100GE client interfaces across a collection of 10/40/100G s will be problematic for many transport systems

    Capacity Expansion Requires higher spectral efficiency or technologies that significantly open up the fiber spectrum The optical line systems need to support the capacity increases as

    increased service bandwidth is delivered in cost-effective implementations

    Massive Integration Without significant (1) optical, (2) optical-electrical and (3) electrical integration, systems will fall well short of customer expectations Complicating matters the 3 integration areas need to be architected and

    defined together, as a cohesive system

  • Optical Expo 2007, Dallas | 17

    High-speed Services on Conventional DWDM

    Service

    Wave

    = Transponder-based DWDM

    Can my network handle the data rate? Wave blocking? Dispersion? Optical power? Regen? Protection? etc.

    NOC

  • Optical Expo 2007, Dallas | 18

    300G available 365G available320G av

    ailable 350G available280G available

    140G

    avail

    able

    Service/Capacity Abstraction

    All sites are connected; restrictions removed; Operational simplicity

    40G PoS

    100GbE

    310G available240G available

    200G available 265G available

    Decoupling Transport Services from Waves

    As long as I have the bandwidth, I know I can support the service.

    NOC

  • Optical Expo 2007, Dallas | 19

    Line Capacity Expansion Required

    1.6 Tb/s 10s Tb/s

    Controlled Optical Channels(PLC Technology)

    2Higher Line Rates(PIC Capabilities)1Beyond C-band

    (Enabled by PIC SOA)3

    Dem

    ux

    Mux

    SOA array

    PIC based SOA amplificationPrecision PLC switches, multiplexers & optical penalty

    mitigation

    1.6Tb/s PICS (40ch x 40G)

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    Wavelength (m)

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    Example Capacities

  • Optical Expo 2007, Dallas | 20

    Significant Integration Required

    PLC(Planar Lightwave Circuit)

    PIC(Photonic Integrated Circuit)

    Indium Phosphide Actives and passives Low-cost OEO

    conversion Broad spectrum

    amplification

    Precision passives Switches and

    multiplexers Optical penalty

    (nonlinear distortion) mitigation

    Defined hand-hand with PIC functionality

    ASICs

    Silicon Electronic Dispersion

    Compensation Digital Wrapper and

    Enhanced FEC Multi-protocol client

    interfaces

    Without 10 100x advancements in integration, the required density, power, reliability and cost requirements will not be obtained E.g. 100G line cards will not set the hurdle; better be thinking 4 10x that!

  • Optical Expo 2007, Dallas | 21

    10-to-100GbE Migration: Careful Hazards Ahead!

    Pitfalls w/o service independence and well planned line capacity 10G, nx10G, 40G & 100G client interfaces will soon be the norm Transport systems need to accommodate all without a network overhaul

    OTN & Ethernet alignment Incompatibility is fixed for ODU4; but what about the existing lower rates? ODU4 will be defined to accommodate 100GbE and 10x10GbE But, the industry will need continue to promulgate proprietary solutions to

    better accommodate transparent carriage of 1GbE & 10GbE / The 10GbE to 100GbE migration path is not via 40GbE!

    Input to the IEEE HSSG made if very clear; overwhelming industry support (service providers, switch/router vendors & transport vendors) that for network applications, 40GbE was an unnecessary distraction Todays business is being impacted due lack of a 100GbE interface 40GbE was accepted as a server/SAN/backplane host interface

    You watch: system vendors will begin to position 40GbE as a network interface! Its easy to do, and takes the attention away from 100G challenges

  • Optical Expo 2007, Dallas | 22

    Summary Thoughts

    Carrier & service providers has spoken loud & clear on their requirements 100GbE will be late when the standard is completed in 2010 They require a transport infrastructure that will accommodate 10G, nx10G,

    40G & 100G services and do so at a constantly decreasing $/bit/km 100G & follow-on growth necessitates a review in how Transport

    systems are architected Conventional All-Optical networking ties services to wavelengths This is fundamentally flawed Examples:

    nx10GbE LAG (n=216) 100 GbE & nx100GbE services

    Without significant innovation & technology advancements systems risk falling short of customer expectations Accommodate 100GbE cost effectively on todays platforms Constant integration to scale seamlessly as higher capacities are required

  • Towards 100 GbE Introduction

    Dr. Milorad CvijeticVice President and Chief Technology Strategist

    NEC Corporation of America, Optical Network Systems [email protected]

    Optical Expo 2007, Dallas, TX, Oct 2-3

  • Optical Expo 2007, Dallas, TX, Oct 2-3

    Outline

    100 G drivers

    System requirements

    Enabling technologies

    The Key for Success

    Summary

  • Optical Expo 2007, Dallas, TX, Oct 2-3

    100 G Service Drivers and Expectations

    Provide more bandwidth and optimize fiber utilization

    100G Ethernet likely to become converged data/transport layer

    There will be a need to upgrade the network over existing 10 LAN PHY based lighwave paths; the number of services requiring packetized 10 Gb/s bandwidth pipes is increasing rapidly while carriers need their aggregation and transport to be more efficient

    Today the core routers are being rapidly deployed with 40 Gb/s ports. In a couple years 100GbE will be needed for this purpose. Accordingly, there will be a need to deploy new systems with future 100 G router interfaces.

    Enable New services and save on CAPEX and OPEX

    Support for future carrier grade 100 G interfaces at routers Optimize an equation involving number of elements/components, real estate, cost

    per Mb/km

  • Optical Expo 2007, Dallas, TX, Oct 2-3

    Next Generation Optical Transport Network

    IP VPN

    TLSGbE Services

    Voice over DataVoIP/VoATM

    FR/ATML2 VPN

    ADSL/FTTH

    Private Line

    Voice Lines

    IP/MPLSNetwork

    ROADMROADMDSLAM/PON

    /GMPLSNetwork

    OverlaySoft Switch

    Ethernet Switch

    Edge RouterCore Router

    MPLS Switch

    Metro/Edge Network

    SDH ADM

    WXC WXC

    Optical/PacketCore Network

    40/100 G application area

  • Optical Expo 2007, Dallas, TX, Oct 2-3

    System Requirements for 100 G Deployment

    *per Dr. M. Birk, AT&T, OFC 2006

    The same engineering rules for future 100 G and 40 G

    1000 km enough for 70-80% of circuits* >> starting point2000 km enough for 80-90% of circuits

    The same transport/networking principlespacket over opticalwavelength routing (ROADM/OXC) >> going through cascaded WB/WSS

    The same practical aspectsReuse of 40 G technology (PMD, SERDES, drivers)Cost structure to be as close as possible to 40 G >> but with 2.5 bandwidth increase is in place

  • Optical Expo 2007, Dallas, TX, Oct 2-3

    Challenges related to 100 Gb/s deploymentBandwidth scalability

    Buy and upgrade bandwidth per 100-Gb/s increment

    Transmission issues in fiber Dispersion, nonlinear effects

    Faster Electronics Processing power to match 100+ G speed

    Component packaging and integration Compact design, tighter specs, new testing requirements

    The Key for Success

    Proper modulation format, dispersion compensation, and detection schemes

    Proper coding schemes to help with nonlinearities

    Key components and ASIC to be in house and as compact as possible

    Valid research results and early dialog with customers

  • Optical Expo 2007, Dallas, TX, Oct 2-3

    AMP AMPAMP AMP

    Dem

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    emu x

    Rx

    Rx

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    Rx

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    Tx

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    100 Gb Optical Transmission -mix and match of 40G and 100 G envisioned-

    Electrical Input Electrical Output

    Bit Rate/number of channelsOutput PowerModulation/Coding FormatExtinction Ratio

    Signal LossSignal DispersionNonlinear EffectsCrosstalk

    Signal-to-Noise RatioBit-Error-RateNoise PowerPower Penalties

    New 40/100 G based transmission should follow the rules established for 10 G. There are enough means to resolve challenges related to high speed transmission (such as impact of nonlinear

    effects, etc.)

    40 G

    100 G

    100 G

    40 G

    100 G

    100 G

  • Optical Expo 2007, Dallas, TX, Oct 2-3

    In house devices for high speed (40G/100G) transmission Proper modulation and compensation schemes for CD, PMD

    Key components and ASIC in house

    Valid research resultsand early verification

    Leading IEEE/ITU standard activities

    Technology Differentiators for 100G

    100 Gb/s InP/InGaAs HBTD flip-flop

    +13 dBm

    Tunable laser

    OEQ PMD Compensator

    100 Gb results: 20 WDM Channels@107Gb/s Signal Transmission Over Straight Line Of 1000km SMF-28

    C

    D Chip size: 1.9 X 1.76 mm

    1525 1530 1535 1540 1545 1550 1555 1560 1565-60

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  • Optical Expo 2007, Dallas, TX, Oct 2-3

    Summary There are 100 G Service Drivers and

    Expectations in Place

    There are Standard Activities for 100 G Definition

    (IEEE/ITU)

    There are Enabling Technologies for Advanced 100 G Systems

    There are favorable experiments to verify system requirements for reach and networking cascading effects

    All above helps to resolve 100 G related issues and challenges in near future

    System supporting mix and match of 40/100G DWDM channels are about to be introduced

    We are moving closer to 100 G deployment!

  • 100 GbE Network implementations, challenges and testingJoerg PackeiserDirector Product Line Management Optical TransportJDSU Communications Test & Measurement

    Optical Expo 2007, Dallas

  • 2007 JDSU. All rights reserved. JDSU CONFIDENTIAL & PROPRIETARY INFORMATION33

    100 GbE Ethernet Activities

    Data center

    Metro/Core

    Ethernet Transport:Aggregate Bandwidth >> 100Gbit/s Multi-Lane Connections 100 Gbit/s per Wavelength

    Short Range100Gbit/s per port

    CPE:No 100Gbit/s NICsbefore 2015

    IEEE HSSG Focus

    HOT !

    Invest

    igation

    Cool

    4x25G CWDM

    HOT !

    nx100G DWDM

  • 2007 JDSU. All rights reserved. JDSU CONFIDENTIAL & PROPRIETARY INFORMATION34

    100GbE is not always 100Gbit/s Serial

    100GbEMAC

    Data CentersShort Reach

  • 2007 JDSU. All rights reserved. JDSU CONFIDENTIAL & PROPRIETARY INFORMATION35

    100 GbE Challenges

    Technology:

    New modulation formats with high spectral efficiency (Duobinary Code, DQPSK,)

    Compatibility with currently-installed optical line equipment (DWDM Grid, EDFAs, etc.)

    Compensation of transmission impairments (Noise, CD, PMD,)Cost of 100GbE transceivers Processing of 100Gbit/s data streams

    Algorithms for parallel processing Standardized Interfaces between functional blocks, (cf. SFI-5 Interface, defined by

    IF for 40Gbit/s) Backplanes

    Common network structure for Ethernet and Transport (telecom & data)

    Networks:

  • 2007 JDSU. All rights reserved. JDSU CONFIDENTIAL & PROPRIETARY INFORMATION36

    How does Ethernet scale for Transport?

    OC-3 155M

    OC-12 622M

    OC-48 2.5G

    OC-192 10G

    OC-768 40G

    OTU-1 2.7G

    OTU-2 10.7G

    OTU-3 43G

    100ME

    1GbE

    10GbE

    100GbEBitrate

    SONET/SDH/OTN scales by factor of 4 (2.5G, 10G, ) Ethernet scales by factor of 10 (100ME, 1GE, ) 100GbE: opportunity to combine both worlds

    SONET/SDH OTN Ethernetx10x4x4

    OTNOverclock11.1G

    44.4G ?

    x4

  • 2007 JDSU. All rights reserved. JDSU CONFIDENTIAL & PROPRIETARY INFORMATION37

    Modulation formats for long haul transport

    Long haul transport of 100G serial will require multi-level modulation (X bits per symbol) to run over existing long-haul networks

    e.g. POLMUX QPSK25G elec.QPSK

    20G elec.

    RZ/NRZ40G elec.

    RZ/NRZ10G elec.

    bit/symbol

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    100

    4

    RZ/NRZ100G elec.

    QPSK50G elec.

  • 2007 JDSU. All rights reserved. JDSU CONFIDENTIAL & PROPRIETARY INFORMATION38

    Options for Ethernet Transport (Example)

    CPE Device

    CPE Device

    NE 3 NE 4NE 1 NE 2

    4 Lane10km PMDEthernet UNI

    Service Demarcation Point

    10 Lane100m PMD

    Physical layer aggregation vs. modulation schemes

    ODU2-11v9.995 Gbit/s x11

    aggregation

    ODU3-3v40Gbit/s x 3

    aggregation(+modulation)

    ODU4 Serial I/F110130 Gbit/s

    modulation

    critical factors: time to market, link managment

  • 2007 JDSU. All rights reserved. JDSU CONFIDENTIAL & PROPRIETARY INFORMATION39

    100G Test Applications Whats different?

    Test requirements Compare to 10GbE

    100GbE MAC/PCS Layer Tests As 10GbE Frame /Block Generation / Analysis

    100GbE End-to-End QoS As 10GbE Ethernet Frame Transmission Ethernet OAM Functions

    100GbE /OTN Interworking Not standardizedfor 10GbE

    100Gbit/s Interface/Signal Quality New standards- Stressed Eye/Jitter/Eye diagram t.b.d.

    Transmission Impairments New, dependent on implementation

  • 2007 JDSU. All rights reserved. JDSU CONFIDENTIAL & PROPRIETARY INFORMATION40

    JDUS T&M Technical Approach

    Cooperation with Component and System Manufacturers Front ends Fast digital circuits Hooks for measurement applications in 100GbE components

    Participation in Research Programs Packet100 (planned)

    Active Participation in Standardization Tracking interface definition and system specification Definition and standardization of measurement methods and

    instruments

  • InternationalTelecommunicationUnion

    HighHigh--Speed Ethernet TransportSpeed Ethernet Transport

    Dr. Stephen J. TrowbridgeDr. Stephen J. TrowbridgeViceVice--Chairman ITUChairman ITU--T Study Group 15T Study Group 15Chairman ITUChairman ITU--T Working Party 3/15T Working Party 3/15

    Optical Expo 2007Dallas, Texas2-3 October 2007

    ITU at the heart of international Geneva

    Chief Technology OfficeOptics Division

  • InternationalTelecommunicationUnion

    Ethernet Service Model and relevant standards domains

    CustomerEdge

    ETY-UNI-C

    NetworkTermination

    ETY-UNI-N

    NetworkTermination

    CustomerEdge

    ETY-UNI-N ETY-UNI-CNNI NNI

    ETY-UNIService

    DemarcationPoint

    ETY-UNIService

    DemarcationPoint

    EoT NNI(Ethernet

    overTransport)

    Ethernet LANinterface

    IEEE 802.3 HSSG(802.3ba)

    Ethernet LANinterface

    IEEE 802.3 HSSG(802.3ba)

    OTN NNIITU-T SG15Q6/15 OpticsQ11/15 Signal

    structures,mappings,services

    Component/Backplane

    OIF CEI-25, SFI-X

    MACRS

    PCSPMAPMD

    MACRS

    PCS

    PMAPMD

    MACRS

    PCSPMAPMD

    PMAPMD

    GFP

    OPUkODUkOTUk

    bam

    MACRS

    PCS

    GFP

    bamOPUkODUkOTUk

    Packet Service

    Circuit/CBR Service

  • InternationalTelecommunicationUnion

    Packet vs. Circuit Ethernet Services

    Packet ServicesShared or dedicated transport infrastructureFull rate or sub-rate serviceSupports a variety of topologies (EPL, EVPL, EVPLAN, EVPRMS) among two or more UNIsIncrease or reduce capacity in-service with VCAT/LCASGracefully degrade (reduce capacity) on partial link failure

    Circuit ServiceFull-rate, bit transparent service between two UNIsNo packet grooming in the transportSupports most proprietary extensions to Ethernet frame format

  • InternationalTelecommunicationUnion

    Circuit or Packet ServicesOTN Virtual Concatenation

    15

    PSI

    V

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    OPUk OH OPUk Payload (4 3808 bytes)OPUk #X

    1

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    15

    PSI

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    OPUk OH OPUk Payload (4 3808 bytes)OPUk #1

    1

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    4

    OPUk-Xv

    1

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    3824

    3824

    OPUk-Xv Payload (4 3808 X bytes)OPUk-Xv OH(4 2 X

    bytes)

    Ultra-high rate bit stream

    Multiple lower rate streamsfor transport across network

    GFPHDR DA|SA|M_SDU|FCS

    Consecutivebytes of originalbitstream aredistributed to eachlane of the VCATgroup. No packetcan be retrievedfrom only one lane.

    1

    2

    3

    4

  • InternationalTelecommunicationUnion

    VCAT Group Sizes for PDH, SDH, OTNPDH VCAT Minimum payload

    (kbit/s) Maximum payload

    (kbit/s) Step size (kbit/s)

    DS1-Xv, X = 1 to 16 1 533 24 528 1 533E1-Xv, X = 1 to 16 1 980 31 680 1 980E3-Xv, X = 1 to 8 33 856 270 848 33 856DS3-Xv, X = 1 to 8 44 134 353 072 44 134

    SDH VCAT Minimum payload (kbit/s)

    Maximum payload (kbit/s)

    Step size (kbit/s)

    VC-11-Xv, X = 1 to 64 1 600 102 400 1 600VC-12-Xv, X = 1 to 64 2 176 139 264 2 176VC-3-Xv, X = 1 to 256 48 384 12 386 304 48 384VC-4-Xv, X = 1 to 256 149 760 38 338 560 149 760

    OTN VCAT Minimum payload (kbit/s)

    Maximum payload (kbit/s)

    Step size (kbit/s)

    ODU1-Xv, X = 1 to 256 2 488 320 637 009 920 2 488 320ODU2-Xv, X = 1 to 256 9 995 277 2 558 709 902 9 995 277ODU3-Xv, X = 1 to 256 40 150 519 10 278 532 946 40 150 519

  • InternationalTelecommunicationUnion

    Packet Based Ethernet Services over OTN

    ETYn

    ETYn/ETH

    ETH

    ODUk/ETH

    ETH_FP ETH_FP

    ODUk

    ODUkServerLayer

    Network

    ODUkServerLayer

    Network

    TrafficConditioning

    Function

    Traffic conditioning removes need forexact rate match between client andserver. This enables:

    Subrate transport

    Shared higher rate transport

    ODUk-Xv/ETH

    ODUk-Xv

    ODUk-Xv/ODUk-X-L

    ODUk ODUk

    ETYn

    ETYn/ETH

    ETH

    ETH_FP ETH_FP

    ODUk-Xv/ETH

    ODUk-Xv

    ODUk-Xv/ODUk-X-L

    ODUk ODUk

    ODUk/ETH

    ODUk

    Single Server Layer

    Virtually ConcatenatedServer Layer

    or

  • InternationalTelecommunicationUnion

    Adaptation of40GbE into ODU3(e.g., lower MACrate or transcode

    64B/66B to512B/513B)

    Transparent mapping of 40 GbE (ETY5)into ODU3 Server Layer Network

    ETY5

    ETY5/ETC5 ODU3/ETC5

    ODU3

    ODU3ServerLayer

    Network

    ODU3ServerLayer

    Network

    ODU3/ETC5

    ODU3 ETY5

    ETY5/ETC5No TrafficConditioning

    or flow awarenessas this is a

    constant bitrateservice at PCS(41.325 Gbit/s)

    ODU3/ETC5 adaptation isthe new capability that needsto be standardized,(e.g., lower MAC rate ortranscoding 64B/66B to512B/513B to fit standard ODU3)

    ETY5 = physical layerfor 40 GbEETC5 = physical codingsublayer for 40 GbE

    ODU3already widely

    deployed

  • InternationalTelecommunicationUnion

    Transparent mappings of 100 GbE (ETY6) into new ODU4, ODU3-3v, ODU2-11v

    ETY6

    ETY6/ETC6

    ODU4/ETC6

    ODU4

    ODUkServerLayer

    Network

    ODUkServerLayer

    Network

    No TrafficConditioning

    or flow awarenessas this is a

    constant bitrateservice at PCS

    (103.125 Gbit/s)

    ODU4/ETC6, ODU3-3v/ETC6,ODU2-11v/ETC6 adaptations arethe new capabilities that needto be standardized

    ETY6 = physical layerfor 100 GbEETC6 = physical codingsublayer for 100 GbE

    ODU3ODU3

    ODU3-3v/ETC6

    ODU3-3v

    ODU3-3v/ODU3-3

    ODU3 ODU2ODU2ODU2ODU2ODU2ODU2ODU2ODU2ODU2

    ODU2-11v/ETC6

    ODU2-11v

    ODU2-11v/ODU2-11

    ODU2ODU2

    One wavelengthNew OTN Tier

    112 or 130 Gbit/s TBDThree wavelengths

    40 Gbit/s

    11 wavelengths10 Gbit/s

  • InternationalTelecommunicationUnion

    ConclusionsIEEE 802.3ba objective for OTN support ITU-T and IEEE will work together to specify mappings for 40 GbE and 100 GbE into OTNPacket based services provide flexible allocation of bandwidth and different network topologiesCircuit services provide bit transparency, support for most proprietary extensions to Ethernet frame formatNew OTU4/ODU4 Tier to be added to OTN hierarchy to support transparent transport of 100 GbE or multiplexed tributaries of either 10x10 Gbit/s (~112 Gbit/s with FEC) or 3x40 Gbit/s (~130 Gbit/s with FEC) depending on optical transmission feasibility

  • InternationalTelecommunicationUnion

    AbbreviationsEthernet Physical Coding order n: n=1 10 Mbit/s n=2 100 Mbit/s n=3 1 Gbit/s n=4 10 Gbit/s n=5 40 Gbit/s n=6 100 Gbit/s

    ETCn

    Link Capacity Adjustment Scheme (G.7042)LCAS

    Virtual ConcatenationVCAT

    Optical Channel Transmission Unit order k (section overhead and FEC)

    OTUkOptical Channel Data Unit order k (with path overhead)ODUk

    Optical Channel Payload Unit order k k=1 2.5 Gbit/s k=2 10 Gbit/s k=3 40 Gbit/s k=4 100+ Gbit/s (exact rate TBD)

    OPUk

    Ethernet Physical Layer order nETYn

    Ethernet MAC Layer (packet flow)ETH

  • InternationalTelecommunicationUnion

    Applicable ITU-T Standards

    Multiple amplified spans of various reachesLongitudinally compatible intra-domain DWDM applications G.696.1

    Ethernet Virtual Private Rooted Multipoint Service (under development)

    G.8011.4

    Ethernet Virtual Private LAN Service (under development)G.8011.3

    Ethernet Virtual Private Line ServiceG.8011.2

    Specific Ethernet Service Definitionsaligned with MEF Service Definitions

    Ethernet Private Line ServiceG.8011.1

    Overall Ethernet Services FrameworkEthernet over Transport - Ethernet Service CharacteristicsG.8011

    In-service add or remove members from virtually concatenated groups

    Link Capacity Adjustment SchemeG.7042

    Frame-base mapping of packets into CBR transport

    Generic Framing ProcedureG.7041

    Metro networking with ROADMs and OAsAmplified multichannel DWDM applications with single channel optical interfaces (Next version will include 40G interfaces)

    G.698.2

    Multiple amplified spans of various reachesMultichannel DWDM applications with single channel optical interfaces

    G.698.1

    Metro networking without OAsSpectral grids for WDM applications: DWDM frequency grid

    G.694.1

    Single and multi-channel physical interfaces for various single-span reaches

    Optical transport network physical layer interfacesG.959.1

    Physical layer specifications for OTU3 signals, VSR interfaces for 40G (single-channel client interface)

    Optical interfaces for intra-office systemsG.693

    Frame Format for single or multi-channel systems with optional FEC. Includes virtual concatenation, client mappings. New OTU4/ODU4 tier to be added.

    Interfaces for the Optical Transport NetworkG.709

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