state and future of optical transport networks

1

State and future of optical transport networks

RoEduNet conference Cluj, 28th August 2008

Andreas Hegers

Director Solutions Architecture and Strategy

Metro Ethernet Networks

2

Agenda

• Market trends• Main Services and Bandwidth drivers• Technology trends• Key network requirements

• Ways to build a future-proof transmission network• DWDM transmission

• 10G - Still the baseline• 40G - The next big thing• 100G - On the horizon

• Networking flexibility• ROADMs - Photonic flexibility• OTN - The successor of SDH (?)• L2 - Embedded data capabilities• Control plane - Gluing it all together

• Network example RoEduNet

• Outlook and summary

3

Agenda







4

The Need for Speed

More than 70% of U.S. Internet users, streamedor downloaded Web videoin 2007.

YouTube today uses as much bandwidth as the entire Internet in 2000:• 200 Tbytes of traffic daily

We are in the middle of massive growth of networks where bandwidth requirements are exploding.

By 2010, 27% of Business access will require 100M - 10G Ethernet

10/100M 44% CAGR (07-10) 1G 36% CAGR (07-10) 10G 415% CAGR (07-10)

0.0

0.5

1.0

1.5

2.0

2.5

3.0

2007 2008 2009 2010

EA

Ds

(M

illio

ns

)

10/100M

1G

10G

Source: Infonetics 2H 2007

Source: Infonetics & Nortel Analysis

Storage bandwidth growth:• 6,000,000 Terabytes 2008 -> > 16,000,000 Terabytes 2010

Gartner Group, Oct 2006

5

Impact on Transport

Gb

ps

Ro

ute

s in

Mill

ion

s(r

epre

sen

ts n

ew p

ort

s sh

ipp

ed)

2000

2001

2002

2003

2004

2005

2006

2007

2008

2009

Source: Infonetics, 2Q06 & Nortel internal 100G study

Terrestrial Gbps Routes

21.4%10.5%

5.4% 4.4%

10 Gbps

2.5 Gbps

40 Gbps

• Sum of capacities from various user groups builds need for 40Gb/s and eventually 100Gb/s links

• Video and voice services drive more stringent QoS expectations

• Optical (data center) services require multi-Gb/s over full time or on-demand connections

100 Gbps

6

BB Business Services Access

GbEStorage

Leased Lines

Business Services Access

Wireless Backhaul

Residential Services Access

Optical Modem: Fully Tuneable 10 40 100 Gbs Adaptive Distortion Mitigation (CD, PMD/PDL, Non-linearities)

Photonic domain control intelligence for fully

automated line control and simplified end to end

provisioning

WSS based ROADM for network agility, multi-way branching

Transport & Service Management

Converged L0/L1/L2 in single platform for fully flexible capacity allocation

Ethernet

PDH / SDH

IP -80

-70

-60

-50

-40

-30

-20

-10

0

10

20

1540 1542 1544 1546 1548 1550 1552 1554 1556 1558 1560 1562

Wavelength (nm)

Fibe

r O

utpu

t (dB

m)

15nm

PhotonicPhotonicDomain ControlDomain Control

NGMNGM

OEOOEO

NGMNGM

OEOOEO

NGMNGM

OEOOEO

NGMNGM

OEOOEO

PhotonicPhotonicDomain ControlDomain Control

NGMNGM

OEOOEO

NGMNGM

OEOOEO

NGMNGM

OEOOEO

NGMNGM

OEOOEO

Agile Packet Optical

Key Enabling Technologies – OpticalAccess Metro L H Core

7

Access Metro L H Core

BB Business Services Access

GbEStorage

Leased Lines

Carrier Ethernet

Business Services Access

Wireless Backhaul

Residential Services Access

PBB-TE (PBB-TE)Deterministic

Ethernet Circuits

PBB – secure, scalable clear demarcation between customer

and provider addressing

Transport & Service Management

GMPLS provisioning efficiencies

802.1ag and Y1731 carrier grade operations and

instrumentation

Ethernet with the Efficiencies of Packet and the Robustness of SDH

Agile Optical

Ethernet

PDH / SDH

IP

Ethernet

IP / MPLS

Key Enabling Technologies – Ethernet

8

Agenda







9

……

…

Electrical Signal Processing

Advanced FECAdvanced line and modem

Remove/Minimize DSCMs & Amps, Increase PMD Tolerance, Eliminate complex engineering rules (esp. OADM)Improved coding-gainSimple deployment & reconfiguration, reduced inventory & truck rolls

…

OEO

eROADM NodeTerminal Node AMP

Node

OADM NodeAMP Node

DSCM

……

Ter

min

al N

od

e C-Band

L-Band

Network Simplification Through Innovation

OEO

OEO

OEO OEO

OEOOEO

OEO

OEO

OEO

DSCM

DSCM DSCM DSCM

DSCM DSCM DSCM

DSCM

DSCM

OEO

OEO OEO

OEO

10

Wraptor FEC• 9.4dB of coding gain

• 3dB > RS-8

• Raman avoidance

10G eDCO • Electrical Tx based

dispersioncompensation

• Better than+/- 50,000ps/nm

• Real-timeFully automatic

20052003 Future2008

Embedding Transmission Complexity into Electronics

Advanced E/O Modem Introduction

10

11

Tx Rx

Tx Rx

1 spanDCF DCF DCF DCF

Conventional Optical Link with DCMs

Nortel’s Next Generation Optical Link with CPL and eDCO

DCF = Dispersion Compensating Fiber, packaged as a DCM

Optical Pulse Transmission with Electronic Dispersion Compensation (eDCO) on a 10 Gb/s link

Pre-Distorted, Eye Diagram Focused Eye Diagram(Zero Net Dispersion)

12

eDCO Dispersion Scan 20 spans - 1.600 km

22,00022,25022,50022,75023,00023,25023,50023,75024,00024,25024,50024,75025,00025,25025,50025,75026,00026,25026,50026,75027,000

Dispersion[ps/nm]

But what about 40G…?

13

Fiber parameters - Things to know

• The key fiber parameters to pay attention to are1. Attenuation:2. Chromatic Dispersion (CD):3. Polarisation Mode Dispersion (PMD):

For 40G, the limiting factor is mostly PMD

• Many carriers don‘t know the PMD values of their fiber, thus we have to stress the importance

• The older a fiber, the higher usually it‘s PMD. One bad part will spoil the complete link

• At 100G, the situation is much worse for all 3, so a future proof solution is key

14

• 4 times the baud rate of 10G TDM• Bit interval reduced from 100ps to 25ps

• Circuit implementation significantly more challenging also need more complex materials

• 4 times less light entering the receiver• 6dB drop in noise margin, may need RAMAN amplifiers

• Increase optical spectrum occupied by a factor of 4 (to ~ 6 RZ)• Increased system impact of optical filters (OADM/ROADM)

• 16 times less tolerant to chromatic dispersion• More stringent dispersion map• Increased installation difficulties, needs to be engineered day one• May need active CD compensators

• 4 times less tolerance to PMD • May need PMD compensators• May need to select/match fiber based upon vintage, installation, etc…

40 Gbps TDM – Challenges vs. 10 Gbps

40G/ transmission has Significant Optical Challenges

15


• 3dB > RS-8

• Raman avoidance





eDC40• 2-Pol QPSK 40G

• 10Gbaud operation

• +/- 50,000 ps of CD compensation

• Electrical PMD mitigation

• 50GHz OADM compatible

20052003 Future2008



15

16

• 40 Gbit/s on a single wavelength at 10 GBaud

• Using Quadrature Phase Shift Keying (QPSK) • 2 bits/symbol: X 2

• 2 QPSK signals, one per polarization • 2 orthogonal polarizations: X 2

• World’s first fully integrated 40G coherent digital receiver

• Propagates like a 10 Gbps signal

• For non-linear impairments, dispersion tolerance, PMD tolerance, etc…

• Uses 10G components: cost optimized, mature technologies with numerous vendors

• Fully leverages existing 10G Line Infrastructure

• Same Reach – No RAMAN or reduction to overcome increase in noise

• Same tolerance of cascaded ROADMs

• No Dispersion Compensation required

• Better PMD Performance than 10G systems

• All fiber that could be used for 10G can nowbe used for 40G Rx Data After DSPRx Data Before DSP

QPSK X - polarization

QPSK Y- polarization

(0,0)(0,1)

(1,0) (1,1)

Q

I

(0,0)(0,1)

(1,0) (1,1)

I

Q

Vertical Polarization

Horizontal Polarization

Dual Polarization

Dual Polarization

40 Gbps Dual Polarization QPSK

17

40 Gbps Dual Polarization QPSK

40GDual Polarization

QPSK

10GConventional

TDM

40GConventional

TDMFrequency

50 GHz

40G TDM Severely Impacted by Cascaded ROADMs

System Severely Limited at 50GHz-Spacing Carries Less Traffic

18

2-POL QPSK looks like the right solution

10G PSBT DPSK CS-RZ DQPSK 2-POL QPSK

Normalized Reach 1 .4 .8 .55 .65 1

CD Tolerance [pSec/nm] +/-400 +/- 400 +/- 400 +/- 400 +/- 400 +/- 50,000

PMD Tolerance [pSec] 15 3.5 3.5 3.5 8 25

Filter/OADM Tolerance [# of ADM traversed]

50GHz 12 3 3 N/A 8 >23

100GHz 12 8 8 8 >12 >23

40G Modulation SchemesPerformance Comparison

But what about 100G…?

19

Why 100G?

Customers want bigger pipes

20

100G - Things to know

• 100G is seen as the next big step for all vendors

• First deployments are expected around 2010 timeframe

• Given the lifetime of a transmission network, whatever is rolled out today should be 100G ready

• As the need for higher network capacities is there, a sit-and-wait strategy is no option

• Given the complexity of 100G transmission, only vendors with solid 40G knowledge & ASIC implementation have a realistic chance to get there in time

21


• 3dB > RS-8

• Raman avoidance





eDC40• 2-Pol QPSK 40G

• 10Gbaud operation

• +/- 50,000 ps of CD compensation

• Electrical PMD mitigation


20052003 Future2008

eDC100• 100G/

• Reach > 1000Km

• Electrical CD and PMD compensation




21

22

• ITU determining next rate of OTN (OTU-4) to accommodate 100GbE

• OTU-4 rates considered:• 3 X 40G -> 130 Gbit/s• 100 GbE -> 112 Gbit/s (most popular)• Decision on rate to be made end 2008

• Advanced modulation schemes consideredto support the new rates: • Dual Polarization (Dual Pol) or Polarization Multiplexed

QPSK, Duobinary, DQPSK, RZ-DQPSK.

• Dual Polarization QPSK• Only format capable of 50GHz spacing• Only format with 10G-equivalent PMD tolerance• Only format that could transport both OTU-4 rate proposals

Expect Other Vendors to Move to Dual Polarization QPSKas Industry Moving in this Direction for 100G

Expect Other Vendors to Move to Dual Polarization QPSKas Industry Moving in this Direction for 100G

100G Standards UpdateITU Study Group 15 Q6 Meeting – Oct 2007

23

100Gb/s Study Group Format Comparison

NRZ-DQPSK DP-QPSK RZ-DQPSK Duobinary

Bit Rate (Gbit/s) 112 130 112 130 112 130 112 130

Baud Rate [GBaud] 56 65 28 32.5 56 65 112 130

Support of 100GHz channel spacing

Yes Prob Not

Yes Yes Yes Maybe Maybe No

Support of 50GHz channel spacing

No No Yes Yes (sim)

No No No No

CD Tolerance for 2dB OSNR penalty (ps/nm)

+/-19 +/-14 18000 15000 +/-21 +/-15 +/- 23.5 +/-17.5

Max DGD tolerance for 1dB OSNR [ps]

6.1 5.3 27.0 23.0 7.3 6.3 2.7 2.3

OSNR tolerance for BER=1e-4

19.2 19.8 16.8 17.4 18.7 19.3 21.7 22.3

2dB bandwidth of flat top filter for 2dB OSNR penalty

+/-30.2 +/-35.2 +/-15.4 +/-18 +/-28.6 +/-33.3 +/- 35.9 +/-41.7

Only format capable of 50GHz spacingOnly format with 10G-equivalent PMD tolerance

Only format that could transport both OTU4 rate proposals

Only format capable of 50GHz spacingOnly format with 10G-equivalent PMD tolerance

Only format that could transport both OTU4 rate proposals

Nortel Confidential

24

OIF selects DP QPSK for 100G

25

Agenda







26

ROADMs and OTN

Electronic DispersionCompensation

Seamless 10/40/100G

The future proof transport network

Ingredients to Achieve All-Optical Agility

27

ROADM Applications and Drivers

> Traditional networks require manual patching as OADM and pass-through requirements change over time

> Line system optimization must be rebalanced with OADM reconfigurations

>Reconfigurable Optical ADM increases automation and reduces OEO costs• Remote re-configurability

• Automatic reconfiguration for nodal wavelength pass-through events – no manual patching required

• Optical branching• Router / DXC bypass

>Automated System optimization & power balancing• All VOAs are electronic• All power control done remotely • No manual equalization

ROADM

ROADM

ROADM

ROADMROADM

ROADM

Rebalance and optimize as wavelength

routing changes

Reconfigure with changing

traffic requirements

28

ROADM Architectures

2-Degree ROADM • Terminates wavelength services or passes

them transparently through in the optical domain (no transponders / regenerators)

• Connected to two fiber pairs (degree two)

Multi-degree ROADM • Connected to at least three fiber pairs• Can lead to cross connections restrictions or

scalability issues

Directionally Independent OADM• Guarantees non-blocking wavelength

switching between fiber pairs• Allows any wavelength to be re-routed to any

path on the network without manual intervention

Optical bypass traffic

Add/dropand regen

traffic



Add/drop and regen

traffic

DirectionallyIndependent

Add/Drop

Dir1

Dir2

DirN

WSS

- 2929

Starplane

http://www.starplane.org/

- 3030

DAS-3 Network Overview

University of Amsterdam (UvA)VLE (Virtual Laboratory

for E-science)

University ofAmsterdam (UvA)

Media lab

SURFnet CPL

LeidenUniversity (UL)

DelftUniversity (TUD)

AmsterdamFree University (VU)

City ring?

8*10G bandwidthBetween eachNode pair on CPL ring

Cluster with blade PCs

- 3131

Chosen Implementation

Sub network 1:Green

Hilversum1

Amsterdam2

Utrecht1

Rotterdam4

DenHaag

Delft1

Leiden1

Amsterdam1

- One band in SURFnet6 Ring 1 (Green ring) allocated to DAS-3

- Dynamic switching using WSS and OME

MLA

Gro

upm

ux MLA

Gro

upm

ux

WSSWSS

OME 6500broadband

But what about OTN…?

32

The idea behind OTN

> The G.709 frame structure was defined to provide OAM for monitoring end-to-end services and protection capabilities for optical services, i.e. wavelength services

> It supports the use of standard FEC and enhanced FEC when needed and inherently provides 3R functionality

> The frame structure was defined for 3 wavelength bit rate; 2.5 Gbit/s, 10 Gbit/s and 40 Gbit/s (to match with the SDH clients)

> Support of sub-wavelength services was not considered, as they could be provided by client layer networks SDH.

WDMSDH/PDH

ATM/FR MPLSIP

L1: OTNL2: EthernetL3: IP/MPLS

33

Reasons for the OTN Evolution

> 10GbE• Bit transparent transport of 10 GE (10GBase-R) requires an over-clocked ODU2. A

number of proprietary implementations provide the required transparency.

> Transparent transport 4 x 10 GE LAN over 40 Gbit/s • Requires a mapping into an over-clocked ODU2 and multiplexing of them into a new

over-clocked ODU3. One further new function is needed.• The clock tolerance of ± 100 ppm requires a new multiplexing method of ODU2e• The use of the standard multiplexing method requires a new bit-asynchronous mapping

of 10 GE

> 40 GE could be mapped into the standard ODU3 when transcoding is used.

> 100 GE over a single wavelength requires a new ODU4.

> SDH supports transparent transport of 1GE, but SDH will be switched off. Direct transport over the OTN requires a new sub-ODU1/ODU0.

> The OTN must be timing transparent for Ethernet CBR signals in order to support Synchronous Ethernet

34

OTN Extensions Agreements

OTU2

OTU1 ODU1

1x

ODU24x

16x

10x

ODU2x

4x

OTU4 H-ODU4

STM-256

40 GE

STM-64

10 GE

STM-16

1 GE

ODU3

ODU2

ODU0

OTU3 ODU3

100 GE

1x

1x

1x

1x

1x

classical OTU or ODU

100 Gbit/s

40 Gbit/s1x

1x

10 Gbit/s

CBR ClientsLower Order ODUOTUk/Higher Order ODU

2x

1x

2.5 Gbit/s

XXX

new agreed OTU or ODUXXX

new OTU, ODUnot yet agreedXXX

standardized mappingor multiplexingnew agreed mappingor multiplexing

1x

NEW

NEW

35

Outlook on OTN Extensions

OTU2

OTU1 ODU18x

1x

ODU24x

16x

10x

OTU2y

OTU3y

ODU2x

ODU3y

4x

1x

OTU4y H-ODU4

L-ODU4

STM-256

40 GE

STM-64

10 GE

STM-16

1 GE

ODU3

ODU2

ODU0

OTU3 ODU3

100 GE

1x

1x

1x

1x

1x

ODU2y

classical OTU or ODU

100 Gbit/s

40 Gbit/s1x

1x

1x

10 Gbit/s

CBR ClientsLower Order ODUOTUk/Higher Order ODU

2x

1x

2.5 Gbit/s

XXX

new agreed OTU or ODUXXX

new OTU, ODUnot yet agreedXXX

standardized mappingor multiplexingnew agreed mappingor multiplexingmapping or multiplexingnot yet agreed

36


ROADMs and OTN


Seamless 10/40/100G

L2 Awareness


3737

MSPP Network Applications

Broadband 40G

Photonic

MSPP

• Infrastructure (ROADM vs OMX)

• Ethernet Services Delivery

• Broadband Multiplexing• Ethernet Services Delivery

• SAN Extension• Broadband Multiplexing• Ethernet Services Delivery

Packet Optical Solutions are deployed in private builds, shared infrastructure and managed services solutions.

OperationsInterconnect

MultimediaCollaboration

Storage/ILM

Voice (VoIP)

3838

Network Applications - SAN Extension

OM5000 OM5000Transactions

performed locallyData stored /

backed up Remotely

Database /

Storage Array

Transaction

MetroNetwork

OME 6500

OME 6500

Transaction

Transaction

Transaction

OME 6500

Database /

Storage Array

Addresses SAN Extension with requirements of intermediate multiplexing of services

3939

Network Applications - Ethernet Services

MPLSCore

OME

OME

Metro/WAN

OME 6500N x 2.5G

Fiber

Copper

OC3/12/48

Fiber

OME 61x0

OM 3500

Copper/ fiber DWDM/ SONET/

Ethernet

Ethernet VPN solutions on any of the converged layers

40


ROADMs and OTN


Seamless 10/40/100G

Control Plane

L2 Awareness


41

Optical Network Automation Objectives

> Network Topology Discovery and Awareness

> Automated Service Activation• Can be “Client” or “Operator” driven

> OEO & OOO technology provides economical flexibility• OEO for Service adaptation, network adaptation and monitoring

• OOO for photonic flexibility / re-configurability

> Leads to Network protection / restoration

> Potential for IP / Optical inter-working via GMPLS signaling

Optical Layer

Optical Control Plane

42

Considerations when Control is Enabled

>Control Plane in an Optical Network enables:• Automated Automated service activationservice activation in optical layer in optical layer • Network awarenessNetwork awareness resource status and utilization resource status and utilization• Rapid identification / correlation of fault / resource / service Rapid identification / correlation of fault / resource / service • Optical Optical protectionprotection and and restorationrestoration• Ability to Ability to add a new wavelength automaticallyadd a new wavelength automatically without impacting existing network without impacting existing network

Optical Layer

Optical Control Plane

Understanding the viability of the end-to-end wavelength path is critical

43

Mesh Restoration

• Automatic Restoration recovers traffic following a path failure• For traffic not protected by the Transport Plane (e.g. 1+1)• For backup restoration (e.g. 1+1 secondary)

• Dynamic restoration scheme for best survivability and efficiency • Control plane learns location of failure in the signaling notification, computes next best route based

on feedback information and re-routes each connection• No pre-computed/pre-assigned restoration path/bandwidth for higher bandwidth efficiency. Mesh

Restoration will recover from multiple failures as long as b/w is available for restoration• Restoration performance is fundamentally unpredictable and non-deterministic, therefore restoration

times are typically slower i.e. in the range of secs• Example: For 1+1 Path Protection CoS, Automatic Restoration may be optionally used to

restore 1+1 path protection after initial failure• When a working connection fails, traffic is protection switched to protecting connection within 50ms

by Transport Plane. • CP then re-creates (restores) the failed working connection to return the CoS back to the 1+1 Path

Protected state.

Failure notification

I1S1 D1I2

P1 P2

44


ROADMs and OTN


Seamless 10/40/100G

Control Plane

L2 Awareness


45

Agenda







46

• 4.238,8 km fiber• 57 locations• 22 OME 6500• 18 ROADM sites

“…to offer the participants - universities, high schools, cultural, scientific and research nonprofit institutions - the means to communicate with each other…”

RoEduNet Next Generation Network

47

NETWORK DIAGRAM

BUCURESTI

TIMISOARA

SATU MARE BAIA MARE IASI

GALATI

BRAILA

CLUI NAPOCA

ORADEA

ARAD

CAREI

PLOIESTI

BUZAU

BACAU

PASCANISUCEAVAVATRA DORNEIILVA MICA

DEI

TG MURES

DEVA

ALBA IULIA

PETROSANI

TG JIU

CRAIOVA ROSIORI CIULNITA FETESTI

FAUREI

TECUCI

VASLUI

SAVARSIN

COPSA MICA

RUPEA

BRASOV

FOCSANI

CONSTANTA

JIBOU

TEIUS

BUC NAT

NOC

NOC

NOC

NOC

NOC

NOCCIUCA RAZBOIENI

MARGHITA

CHISINEU CRIS

SIBIU RM. VALCEA

CAINENI

PITESTI

TARGOVISTE

BUCURESTI

TIMISOARA


GALATI

BRAILA

CLUI NAPOCA

ORADEA

ARAD

CAREI

BUZAU

BACAU

PASCANISUCEAVAVATRA DORNEI

DEI

TG MURES

DEVA

ALBA IULIA

PETROSANI

TG JIU


FAUREI

TECUCI

VASLUI

SAVARSIN

COPSA MICA

RUPEA

BRASOV

FOCSANI

CONSTANTA

JIBOU

TEIUS

BUC NAT

NOC

NOC

NOC

NOC

NOC

NOC

TRAFFIC SITE

INTERMEDIATE SITE

RAZBOIENI

MARGHITA

CHISINEU CRIS

ILVA MICA

PLOIESTI

SIBIU RM. VALCEA

CAINENI

PITESTI

TARGOVISTE

CIUCA

BUCURESTI

TIMISOARA


GALATI

BRAILA

CLUI NAPOCA

ORADEA

ARAD

CAREI

PLOIESTI

BUZAU

BACAU

PASCANISUCEAVAVATRA DORNEIILVA NUCA

DEI

TG MURES

DEVA

PETROSANI

TG JIU


FAUREI

TECUCI

VASLUI

SAVARSIN

COPSA MICA

RUPEA

BRASOV

FOCSANI

CONSTANTA

JIBOU

TEIUS

BUC NAT

NOC

NOC

NOC

NOC

NOC

NOC

ROADM

SIBIU RM. VALCEA

CAINENI

PITESTI

TARGOVISTE

ALBA IULIA

WSS module

MARGHITA

CHISINEU CRIS

CIUCA

48… global platform with one software load… any card, any service, any chassis …

L2 Termination RPR L2SS for packet

aggregation Termination of

DS1/E1, DS3/E3 on L2SS for Off-net

MSPP SONET, SDH, J-SDH International

Gateway NextGen DCS LO and HO cross-

connects Full range of

transport services

5G TMUX

5G TMUX

STSMapping

& BP driver

VT X-Connect

OC-n Port Card

VTUBP

driverOptics

24 x DS3/EC-1 Port Card

DS3/EC-1

Term

BP

driverVTU

1

2

24

DS3Term

DS1Term

VTMapping

Transponders

2.5G to FC1200 Multiple

protection options

OTN-based transponders

Customer Network

OTSC

OTSC

1+1 Line

40/100G Adaptive Optical Engine

Innovative technology for simpler network deployments

Smooth migration 10 40 100G

>> 1000km reach without REGENs

No hard hats required

OME6500 Network ConvergenceVersatile L0/L1/L2 Convergence Platform

ROADM

network agility Single add and

drop granularity Restoration

49

Optical Multiservice Edge family

OME 6500

OME 6500 Double Decker

OME 6110

OME 6130

OME6500 FamilySONET / SDH

ANDA

Demarc

OME 1110

OME 6150

OM 5065

SONET / SDH CPE

50

To Add 40Gbps Wavelength:

50GHz System

ROADM ROADM

ROADMROADM

ROADM

Terminal

OME 6500

Terminal

OME 6500

1.

2.

3.

Insert eDC40 line and 40G client cards in each OME 6500 terminal shelf

Connect fiber from eDC40 card into existing long haul or metro line system

Connect client signal to 40G Client Card

Possible Network Migration to 40/100Gbps

51

Agenda







52

GMPLS for L2GMPLS for L2

OIF UNIOIF UNIMEF UNIMEF UNI

L3VPNL3VPN

ITU-T ITU-T interlayerinterlayer

ITU-T ITU-T interlayerinterlayer

GMPLS for L0/1GMPLS for L0/1 PCEPCE

ASON/GMPLS Architecture

Target Packet/Optical Network architecture

MPLS ServicesMPLS Services(RFC 2547 VPN, PWs etc.)(RFC 2547 VPN, PWs etc.)

Ethernet ServicesEthernet Services(E-LINE, E-TREE, E-LAN)(E-LINE, E-TREE, E-LAN)

PBB / PBT / PBB / PBT / PLSBPLSB

DWDM / OTNDWDM / OTN

TDM ServicesTDM Services(SDH, Sonet, PDH)(SDH, Sonet, PDH) Ethernet ServicesEthernet Services

(E-LINE, E-TREE, E-LAN)(E-LINE, E-TREE, E-LAN)

53

Conclusion

• Bandwidth demand keeps on growing

• Network flexibility is key

• Optical transmission networks have to be ready for future upgrades to higher bitrates

• ROADM, OTN, embedded L2-features and control planes will lead to a new level of flexibility

RoEduNet’s Next Generation Optical Transport Network is the perfect base for current and future services

state and future of optical transport networks

Documents

voice services

bandwidth requirements

successor of sdh

big thing100g

network agility

gbs linksvideo

technologies ethernet

business access