Verizon Optical Network Strategic Vision

© Verizon 2007 – All Rights Reserved

Verizon Optical NetworkStrategic Vision

Bill UliaszVerizon – Core Network & Technology

Director – Access & Transport Network Architecture

February 25, 2008


2

Agenda

Drivers & Strategy

Metro/Core Transport Transformation

Access Core Extension - Network for Networks

FTTP

Optical Control Plane

3

Verizon’s Global Network

One of the Largest Wholly Owned Facilities-Based Networks in the World


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NA

tra

ffic

vo

lum

e (

PB

/m)

Traffic Growth

Streaming video

Streaming radio

Voice-over-IP

Web browsing

High-speed access

Music downloads

Game playing

Source: Ovum-RHK2000 2005 2010

2000

1500

1000

500

0

Video downloads

PC adoption

Pet

abyt

es/m

on

th

• More Subscribers

• Higher Bandwidth A

pplicatio

ns

• Greater Concurre

ncy

• More “Access”

Broadcast video


5

Service Trends

New Services Innovation does not require network expertise

Voice

PSTN

Voice

Wireless

Voice

IP

Msg

PSTN

Msg

Wireless

Msg

IP

Access

Voice Msg Conf Video

Copper Wireless

IP

Access

Network

Service Orchestration

& Delivery

Applications (Services)

new

Fiber

End to End Optical Network

Must Scale Optical Transport Network


6

Network Architecture Optical Strategy

Maintain high resiliency, low latency, and guaranteed service rates Residential, Enterprise, Gov’t, Wholesale, and Vz Internal needs

Reduce O-E-O points

Wavelength (λ) Centric (Photonic) Network From SONET and DWDM using point-to-point and small rings

To ROADM mesh topologies – 4 and 8 Degree λ Switching

Platform Evolution and Convergence

Control Plane Enabled Dynamic Network Scalable service rates for TDM, SAN, and IP services

Automated provisioning and dynamic bandwidth allocations

STS-1 granularity for 50Mb to 1Gb/s and beyond


7

End-to-End All Optical Network

Metro/Core Transport Transformation Platform Evolution w/ROADMs

Reconfigurable Optical Add/Drop Multiplexers (ROADM)

DWDM, SONET, Ethernet, and Packet

Low Latency, High “QoS”, Efficient Processing, Common Platform

Wavelength Centric (Photonic) Network

Wavelength Switching & Optical Broadcast

10G & 40G λ support, Tunable Optics, Rate Adaptive Clients,

Control Plane Enabled

Dynamic BBoD Services (50Mb/s to 1 Gb/s and beyond)

Access

Core Extension – Network “for” Network Connections

FTTP


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Metro/Core Transport

Transformation


9

Transport Evolution – ROADM Node

Integrated Platform – WSS, Fabric, Client Interfaces

Wavelength Selectable Switch (WSS) Provides Multi-Degree Optical Switching

TDM and Packet Aggregation via Hybrid Electrical Switch Fabric

Tunable Optics and Rate Adaptive Client Ports

P-OTPNG-ADM & DWDMPre-2007 Builds

OTP

WDM

NG-ADM

NG-ADM

NG-ADM

I/O I/O

WSS ROADM

NG-ADM+

NG-ADM+

NG-ADM+

NG-ADM+

NG-ADM+ NG-ADM+

NG-ADM+

NG-ADM+

I/O I/O…

WSS ROADM

TDM

TDM

Packet

TDM

Packet

PoS

TDM

Hybrid Fabric

VCAT

PacketPacket

Packet – Optical Transport Platform


10

Transport Evolution – ROADM Network

• Previous Mode of Operation

• Separate DWDM and SONET NEs –Stacked “Networks”

• DWDM supports ring and linear configurations

• Support for 16-32 λs @ 2.5G

• Small Rings 4-5 Nodes

• Fixed optics

• ROADM Mode of Operation

• Wavelength Centric Mesh

• λ Switching - 4 & 8 Degree

• ADM-on-λ

• Native & Switched Ethernet Capability

• Support 44 & 88 λs @ 10G / 40G

• λ Performance 1000+ Km

SONET Ring

DWDM Ring

SONET Network

Future Interconnection to Metro Ethernet

Network

SONET RING

SONET Network

Mesh Transport

P-OTP

ADM

DWDM


11

Metro Network Build Example

H6

ER2aER2b

ER3a

ER3b

ER3cER3d

ER3e

ER3f

ER4aER4b

ER4c

ER4dER5a

ER5b

ER5c

ER5d

ER5e

ER6a

ER6b

ER6c

ER6d

ER7a

ER7bER7c

ER7d

ER1a

ER1b

ER1cER1d

ER1e

ER1f

YR 1 – “Hub” Locations

ER3

ER4

ER5

ER6

ER1

ER7

ER2

Core Ring

YR 2 – Office Expansions

YR 3 – Office Expansions

Fiber glass-thru

Core Ring

ER#: Edge Rings

H5

H6

H4

H3 H2

H1

LCR1

VHO

ER1g

ER1h

ER1i

ER1jER1k

H

LCR2

ER6e

2

7 13

48 15 6

5

38

5

3 64

19

23

8109

611

6 418

7

18

11

459

13

19

14

7

11

3

17

3

11

30

2

12

5

19

9

4

8

8

11

44 5

21

7

4

4

9

7

35

3

6

3

5 3

6

6

5

5

123

5

2

3 4

116

229

4

8

4

35

33

7

2

2

3

55

33

13

8

53

2

1

32

47 3 4 4

54

19

19

23

2

11

1

2

8 4

4

H549 Miles .5db/mile

Edge Rings served from Hubs

ER1: H6, LCR1

ER2: H1,H2

ER3: H1,H2

ER4, LCR2, H3

ER5: H4, LCR2

ER6: H5, H6

ER7: H6, LCR1


12

OC-192 Broadcast

Ring

OC-192 Data + VOD

Rings

OC-192 Broadcast

Ring

OC-192 Broadcast

Ring

OC-192 Broadcast

RingOC-192

BroadcastRing

OC-192 Data + VOD

Rings

OC-192 Data + VOD

Rings

OC-192 Data + VOD

RingsOC-192

VOD RingsOC-192

Data + VODRings

Hub

Data + VideoAggregation

Office

LCRVAR


Office


Office


Office


Office


Office

LCRVAR

“Pre-ROADM” Mode of Operation

Core DWDM ring

Separate networks to transport broadcast video and IP data/video-on-demand

Multiple SONET Rings for VOD and Data to each VSO

Multiple SONET Rings for broadcast video - VHO to VSOs

Large number of network elements including layered SONET Rings

VSOs

VSOs

LCR – LATA core router

VAR – Video aggregation router


13

ROADM Infrastructure (1)

Core Ring Connects

Long-Haul POPs

VHO

LCR

Aggregation Offices

Edge Rings Serves

VSOs

Broadcast Video λ

VOD and Data

Future VSOs passed w/ upgradeable Amplifiers

Creates Wavelength Centric Mesh Network

End Office

Amplifier

EdgeRing

EdgeRing

Data Hub

Office

Long Haul POP

AggregationOffice

Data Hub

Office

Aggregation& End Office

End Offices

End Offices

Core Ring

Video Hub

Office

Upgradeable Amps

Upgradeable Amps


14


Degrees & Spurs Added

Cost effective

No additional switching components

Single and Dual hubbed

All λs Extended

Supports λ Services

EdgeRing

EdgeRing

EdgeRing

EdgeRing

EdgeRing

Data Hub

Office

Long Haul POP

AggregationOffice


AggregationOffice

Data Hub

Office


AggregationOffice


End Offices

End Offices

Video Hub

Office

Spurs

Spurs

Dual Hubbed

Spur

End Office

Amplifier

Core Ring

Static subtending ring

Fixed OADM

Spurs


15


Sub-Divide the Core 2nd fiber path added

to increase capacity

Interconnect of data hubs doubles the capacity between the data hubs and end offices

Core Extended with Aggregation Offices Redundant LH POPs

EdgeRing

EdgeRing

EdgeRing

EdgeRing

EdgeRing

Data Hub

Office

AggregationOffice


AggregationOffice

End Offices

End Offices

Core RingAggregation

Office

EdgeRing

AggregationOffice


EdgeRing

Spurs

Spurs

Dual Hubbed

Spur

End Office

Amplifier

Data Hub

Office


Long Haul POP

Long Haul POP

Video Hub

OfficeAggregation& End Office

AggregationOffice

Network Impact vs. Pre-ROADMTotal NEs from 160+ to 32Fiber Pairs from 20 to 6

Equipment space from 108 to 32 baysPower Delivery from 80 KW to 30 KW

Capacity From Yr 1 Exhaust to Multi-Yr GrowthCapital Savings 50-60+ %

(Common and Incremental)


16

Access


17

Access “Core Extension”

Integrated/Optimized CPE

SONET, TDM, OTN

GigE Switch with uplinks 10/100Mb & GigE

10GbE Switch with uplinks 10GbE or OTN

GigE Switch with Circuit Emulation Service (CES) for DS1 or DS3

Ethernet over PDH (nxDS1 or nxDS3)

1GbE/10GbE/10G OTN Demarcation

Fiber Penetration Synergies w/FTTP Build

Integrated CPE

P-OTP

Ethernet linksTDM/SONET

Ethernet Switch CPE or Demarcation

Native Ethernet

10/100M, 1/10GbE

Ethernet over PDH CPE

Native SONET

OTN Demarcation

Wavelength Service

PDH

SONET OC-3 to OC-192

10/100M & GigE

Ethernet & TDM Emulation Services

Wavelength

SONET ADM and Ethernet Demarcation

Ethernet CPE with TDM CES

OC-3 to OC-192

ADM

P-OTPNetwork

OTU-1/2/3 (OTN)


18

Access FTTP Architecture

-

4,000

8,000

12,000

Mb

ps

Downstream 622 2,400 2,500 10,000

Upstream 155 1,200 2,500 10,000

BPON GPON WDMPON 2.5 WDMPON 10G

1490nm/1310nm, 1550nmVideo

Passive OpticalSplitter(1x32) ONT

4 x POTSEthernetVideo

Voicen x EthernetSpecialsVideo

Optical NetworkTerminal

ServiceNetworks

Data

Voice OLT(Optical

LineTerminal)

ONT

EDFA(Erbium DopedFiber Amplifier)

OpticalCouplers(WDM)

Video


Over 9M Homes Passed, YE 2007 Target Is 18M By YE 2010 (3M / Year) GPON And More HDTV In 2007 OSP PON Architecture Supports Evolution

EvolutionExamples



20


Goal: Evolve the static SONET/SDH and DWDM layers, of today, to a dynamic optical transport network

Network “aware” elements Auto-discovery for inventory

Awareness of neighboring NEs, connection type and topology

Dynamic provisioning and service activation Automate the end-to-end circuit routing/provisioning process

Create new services and revenue streams Dynamic Broadband Bandwidth on Demand (BBoD)

Optical VPN Capabilities

Self-healing Auto protection and restoration

Examples of Control PlanePSTN -- SS7IP -- Datagram (TCP/IP), MPLSATM -- UNI, B-ICI, PNNI


21

Control Plane Architecture Framework

UNI – Demarcation between user and service provider Un-trusted interface

Signaling only

E-NNI – Demarcation supporting cross-domain connection Intra-carrier/Inter-domain (Trusted) or Inter-carrier (Un-trusted)

Signaling with limited routing info exchanges

I-NNI – Intra-domain node-to-node interface to support control plane functions Fully trusted

Signaling

Routing

UNI UNIE-NNI

Domain 1 Domain 2User 1 User 2

Domain 1 Domain 2

I-NNII-NNI


22

Real Time Dynamic Network Control Auto-Discovery & Self-Inventory Dynamic Provisioning & Service Activation Traffic Engineering Protection & Restoration

Fully Automated End-To-End Optical Network

Control Plane Enabled SONET Mesh

RouterOXC ROADM ADM

Router

Service Control Network

B-SCP

CC C C

C C

Optical Transport Network

Router


SONET Mesh Network

23

Control Plane Enabled SONET Mesh

Lower Cost Better Utilization with Mesh vs. Rings Improved Survivability & Resiliency Simplified & Rapid Service Activation

Network GFP, VCAT and LCAS Full link diversity with best effort node

diversity Access to CP via GigE, OCn, …

Enhanced Services ‘Just-in-Time’ Service Activation Dedicated Broadband Bandwidth on

Demand (BBoD) STS-1 Granularity, BBoD scales from

50Mb/s to 10Gb/s Protection Choices – 1x0 Unprotected,

1+1 Protected, Dynamic Reroute, … Customer Portal for self-service

Edge Node

Control PlaneEnabled SONET Mesh

GMPLS

E-NNI

E-NNI

Edge Node

Edge Node

OC192


24

Control Plane Initiatives

Verizon Interoperability Forum (VIF) E-NNI, I-NNI, UNI Interface Testing

Driving Definitions & Implementation

OSS Integration

Service Formulation

VzBusiness Trans-Atlantic Mesh Network Control plane based protection & restoration capabilities

VzTelcom – Wholesale/Verizon Partner Solutions (VPS) Deployment for JiT Just-In-Time (JiT) provisioning trial in New York City concluded

successfully in 2006

JiT service rollout in NYC in 2007

Implement CP in metro SONET network for JiT


25

Verizon’s End-to-End All Optical Network

Embraces Evolution Verizon Interoperability Forum (VIF) reduces time to market

Wavelength Centric Network, WSS/ROADM, P-OTP, …

Driving towards 40G applications and 100G introduction

Becomes Dynamic Control Plane Enabled (Topology, Element And Capacity Aware)

Routing, Bandwidth Allocation, And Protection/Restoration Functional

Remains “X”able Accessible (Protocol Agnostic, Industry Based Interfaces)

Scalable (Nodes, Rates, Ports, Bandwidth, …)

Predictable (Throughput, Latency, ...)

Reliable/Survivable (Protected: Node, Link, Route, Port, Service, …)


Residential, Enterprise, Government, Wholesale, and Internal needs

26© Verizon 2007 – All Rights Reserved

27

Access – FTTP Architecture

Power &

Battery

Data

POTS

OLT

Internet

Video

Super Head End

Broadcast VideoServices

SER

VideoHub

Office

VerizonIP

Network

Interactive VideoServices

VoiceNetwork

Local CO(Video Serving Office)

Medium HaulOptical Transport

Long HaulOptical Transport

ONT


Verizon Optical Network Strategic Vision

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