OPTera Connect HDXa core part of Nortel NetworksOPTera Connect family of optical switchesis a scalable,multiservice optical switching platform designed tomeet the complex networking needs of todays competi-tive service provider environments. OPTera ConnectHDX is fundamentally redefining optical networkingeconomics by incorporating technology and flexibilityto effectively address capital and operating costs andprovide an optimal network evolution. Dynamicmarket conditions, increasing competitive pressures,and the need for dramatic improvements in networkefficiency have set the stage for a new breed of opticalswitching platform. Nortel Networks next-generationOPTera Connect HDX leads this new era in intelligentoptical switching, responding to todays marketconditions with the right technological solution tomeet future market demands.

Nortel Networks

OPTera Connect HDXoptical switch

Product Brief

The OPTera Connect HDX is NortelNetworks flagship optical switchingplatform providing a field proven,scalable 640 Gbps switch fabricwith STS-1/VC4 granularity andunprecedented subtending ringcapability for efficient nodal consoli-dation applications. With advancedcapabilities such as integratedDWDM interfaces and enhancedinterface density with user selectablebit rates, OPTera Connect HDXoptical switch continues to offerunprecedented value and network-wide cost savings to service providernetworks.

OPTera Connect HDXredefining opticalnetworking economicsThe OPTera Connect HDX is a corebuilding block of Nortel Networksnext-generation optical solutions. Thiscomprehensive offering combinesNortel Networks OPTera productportfoliowhich includes switching,metro, and optical line systemswithindustry-leading optical intelligencesoftware to increase service providersprofitability with new, highly-differen-tiated services, innovative applicationdelivery capabilities, and significantnetwork-wide cost savings.

OPTera Connect HDX is redefiningoptical networking economics byproviding unprecedented scalability,throughput, and cost minimization,

Nortel Networks is onceagain demonstrating ourtechnology leadership inoptical networking, just as we did with the intro-duction of our 10 Gbps system in 1996.

The OPTera Connect HDX is the key enabler of ournext-generation optical network because of its scalability and its meshfunctionality.

while enabling service flexibility, opti-mized connection, and networkmanagement (including automatedprovisioning, routing, and signaling)with the most efficient network-basedprotection and mesh restoration.

OPTera Connect HDX leading tech-nology provides service providers witha key competitive advantagetheability to respond to market demandsnow, with smaller footprint at a lowercost operationand the ability toscale their networks on demand in thefuture. OPTera Connect HDX canrespond to network applications from aslow as 200 Gbps to over one terabit ina single footprint specifically targeting:

Nodal consolidation

DCS modernization/replacement

Network Edge Network Core Network Edge

OPTera Metro 3000/4000/5000/OME 6500

OPTera Connect DX2F/4F BLSR/MS-SPRing

MetroUPSR/SNCP

Metro DWDM network

OPTera Connect HDXover long haulphotonic line

Metro network

MetroBLSR/MS-SPRing

OPTera Connect DX/HDX2F/4F BLSR/MS-SPRing

OPTera Metro 3000/4000/5000/OME 6500

OPTera Metro 5000 DWDM OPTera Connect DX Optical Switch OPTera Connect HDX Optical SwitchOPTera Metro 3000/40005000/OME 6500

Long HaulOptical Line Solutions

OPTera Long Haul 1600/DT

Nortel Networks next-generation networkingPreside Optical Network Management

The OPTera Connect HDX directlyaddresses capital expense (capex) andoperating expense (opex) considerationsby permitting consolidation andmanagement of multiple servicesunder one unified platform. OPTeraConnect HDX permits wavelengthconnectivityin addition to grooming,aggregation, and restoration of sub-wavelength services within thenetwork at line rates from 155 Mbpsto 10 Gbps, 40 Gbps and beyondcreating significant network efficien-cies and immediate cost savings. TheOPTera Connect HDX provides fullmanagement of add/drop, transit, andpass-through traffic for all servicemixes. The ability to provide fullcircuit grooming (STS-1 to STS-768cand VC4 to VC4-256c) as well assupport end-to-end transparentservices enables carriers to offer theircustomers a full suite of servicecapabilities.

What sets the OPTeraConnect HDX OpticalSwitch apart? The OPTera Connect HDX incorpo-rates numerous technological innova-tions that set the product apart fromthe competition. Among these, hereare several that stand out and areworth examining in more detail.

Quad 10G (OC-192/STM-64)interfacesThe OPTera Connect HDX supportshigh density 4 x 10G DWDM andshort reach interfaces (the highestdensity in the market), allowing forhigher port counts per footprint.These high density ports reduce instal-lation and provisioning costs and facil-itate new bandwidth deployment.

16x 2.5G (OC-48/STM-16) or155/622M (OC-3/12/STM-1/4)interfacesWith its high density 2.5G and622/155 Mbps intermediate reachinterfaces, OPTera Connect HDXcost-effectively meets the connectivityrequirements of the core office, metrooffice, or any inter-office servicerequirements.

Extensive BLSR/MS-SPRing andUPSR/SNCP supportThe OPTera Connect HDX opticalswitch has been architected to incor-porate extensive UPSR/SNCP andBLSR/MS-SPRing support. From asimple capacity standpoint, theOPTera Connect HDX providescapacity for up to:

128 UPSR/SNCP rings

128 BLSR/MS-SPRing rings

No other platform in the market cansupport such a wide variety of multi-ple speed rings and topologies.

Integration with OPTera ConnectDX optical switch and moreA combined OPTera ConnectDX/HDX solution provides theflexibility to tailor optical switchingcapabilities for the specific officeapplicationfrom the largest majorhub site to a smaller regional office.The OPTera Connect HDX candirectly subtend up to 32 OPTeraConnect DX rings. OPTera ConnectHDX interoperability is also supportedwith the following products:

S/DMS TransportNode OC-48/Lite/TN16X

S/DMS TransportNode OC-192/TN64X

OPTera Metro 3500, 4200, and 5200

OPTera Long Haul 1600 Optical Line System

OPTera Long Haul DWDMTerminal (DT)

Guaranteed 50msec multi-ring protectionThe OPTera Connect HDX opticalswitch, along with all Nortel Networksoptical products, provides the highestlevel of traffic protection. Withsupport for UPSR/SNCP, two-fiber

OPTera Connect HDX is designed to provide

scalable bandwidth capacity, flexibility, agility, and intelligence

on an advanced platformthat will drive the next-generation network.

OPTera Connect HDX is designed to provide

scalable bandwidth capacity, flexibility, agility, and intelligence

on an advanced platformthat will drive the next-generation network.

Nortel Networks is fundamentally

redefining the economics of networking

with a lowest-cost-per-connected-bit paradigm.

BLSR/MS-SPRing, andthe ultimatein ring protectionfour-fiberBLSR/MS-SPRing, the OPTeraConnect HDX optical switch provides50msec protection times or better.This guarantees that any network faultwill be immediately restored withnegligible impact to customer traffic.Nortel Networks BLSR/MS-SPRingimplementation is a proven technol-ogy that has been deployed for overeight years on tens of thousands ofnetwork elements across globalnetworks.

Operational flexibilityThe OPTera Connect HDX opticalswitch provides numerous operationalflexibility features allowing the serviceprovider to adapt to changing networkdemands. Some of these featuresinclude:

Mixed SONET and SDH traffic on the same network element

Over 16 supported network elements on a ring

Full text access and loopback support

Multiple topology reconfigurations

In-service hardware upgrades from lower density interfaces to newhigher density interfaces

Advanced networkintelligenceOPTera Smart OSNortel Networks advanced networkintelligence delivers full topologyauto-discovery, network awareness,

flexible mesh networking, rapid serviceprovisioning from the metro edge tothe network core, and a full suite ofnetwork planning tools. This solutionfeatures an optical control plane acrossOPTera Connect optical switchesdelivering customizable, adaptableoptical services to bandwidth users.OPTera Smart OS control planefollows the ITU-T AutomaticSwitched Optical Network (ASON)standard architecture and offers a highperformance and deterministic meshnetwork. The network planning toolsin combination with the control planeallow service providers to plan,operate, and optimize their meshnetworks. Some of the key advancedintelligence features are:

Automatic topology discovery and network awareness

Constraint-based routing engine

Dynamic, end-to-end circuit prov-sioning according to service attributes

Flexible protection and restoration schemes over an arbitrary meshtopology

Differentiated CoS support on a perservice path basis

Architecture based on ITU-TG.8080/ASON

Distributed control architecture

Open interfaces following OIFImplementation Agreements

GMPLS-based routing and signalingprotocols

Capacity management via a comprehensive tool suite

Key customer advantagesOPTera Connect HDX optical switch-ing solutions are supported by numer-ous network studies performed byNortel Networks renowned opticalplanning group that have consistentlyproven the business case for deployingthe OPTera Connect HDX. Froma savings perspective, our businesscases demonstrate up to 40 percentequipment savings and 50 percentoperational savings by combiningnodal consolidation and digital cross-connect integration into one platform.Details on other key contributingbenefits are outlined below:

Optimized initial first cost Single shelf deployment lowering

initial first cost while maintainingfull terabit scalability

Network opex and capexefficiency Providing unsurpassed throughput

and power efficiency resulting inreduced operational costs throughsimplified management, advancedoptics, switching, and power technology

Supports mesh restoration to maxi-mize bandwidth utilization andreduce capital investment

Scalability Optical switching solution from tens

of gigabits to over one terabit pershelf to meet total bandwidth needson a single platform

Ability to connect from tens tohundreds of 155/622 Mbps and2.5/10/40 Gbps services on a singleplatform solution

Nortel Networks is fundamentally

redefining the economics of networking

with a lowest-cost-per-connected-bit paradigm.

Architecture flexibility Simple single shelf initial deployment

with modular scalable switch growth and modular I/O capacity

Application flexibility Provides solutions for dense nodal

consolidation, DCS modernization, photonic layer integration, and multiple topology support (linear, BLSR, mesh) for maximum flexibilityand a broad fit/growth application

Bandwidth grooming Flexible service capability supporting

155/622 Mbps and 2.5/10/40 Gbps services with STS-1 to STS-768c (VC4 to VC4-256c) grooming granularity

Advanced optical connectivity Open optical interfaces adaptable to

multiple line rates from 155 Mbps to 40 Gbps incorporating short reach or integrated DWDM optics and tunable laser technology

Pluggable optics increasing system flexibility and reduced sparing costs

High-density Parallel Optical Interface (POI) technology for effi-cient high-bandwidth and low-cost equipment interconnection

Future-proof architecture Multiple topology support linear,

2/4F BLSR/MS-SPRing, UPSR/SNCP, and mesh on a single platform supporting extensive scalability and high-speed services from 155 Mbps to 10 Gbps, 40 Gbps to provide maximum investment protection

OPTera Connect HDX keyapplicationsNodal consolidation/DCSmodernization Single network element combining

ADM, DCS, and DWDM functionalities

2.5/10G subtending ring capability

No back-to-back optics

50 to 75 percent less power, heat, and footprint

Simple fiber and bandwidth management

100 percent non-blocking inter/intra-ring STS-1/VC4 management

Non-blocking switch scalability to 3.84 Tbps

Nortel Networks opticalmanagement solutionsBy harnessing a rich tradition andexpertise in intelligence solutions,Nortel Networks continues to extendits leadership by introducing compellingnew tools to manage your network.Preside Optical Management solutionscontinue to deliver the capabilitiesrequired to maintain a healthynetwork. This pedigree is maintainedwith Preside Application Platform(AP), extended with Optical Manager,and enhanced with OPTera Plannernetwork planning tools.

Preside AP provides a common frame-work for end-to-end management ofOPTera networks. Optical Managerprovides an element managementsolution and craft interface forOPTera Connect HDX and OPTeraLong Haul DWDM Terminal. Themanagement functions are seamlesslyintegrated and easily accessible from aconsistent point-and-click user inter-face. This offers a consolidatednetwork view and automates troublenotification and diagnosis as well astimesaving management features suchas proactive performance reporting,equipment inventory, and networksoftware updates.

Scalability Ability to support increasingly large

networks

Common GUI desktop Minimizes training Increased operational velocity

Client-server architecture Five 9s reliability with platform and

location redundancy

Easily accommodates network growth

Built to open standards TL1provides nodal and third-

party OSS access from the network element

TMF 814 (CORBA)to simplify OSS integration with other back-office systems

Network planning OPTera Planner streamlines the

network design process for OPTera Connect HDX networks with a simple-to-use interface, accurate equipment modeling, and extensive reports

OPTera Connect HDX:Building block for thenext-generation opticalnetworkNortel Networks Next-GenerationOptical Long Haul portfolio includesnot only the power and flexibility ofthe OPTera Connect suite of opticalswitches, but also evolving optical linesystems and comprehensive opticalintelligence. The evolution of the linesystemsnecessitated by the techno-logical innovation of the OPTeraConnect HDXwill see line systemsoperating faster, with higher capacity,and extended reach to further save onamplifier and regeneration costs whilecontinuing to deliver the highestperformance. Nortel Networksprovides a complete solution of next-generation optical switching plat-forms, including the OPTera ConnectDX. This innovative optical switchprovides lower speed service capabilitiesfor small- to medium-sized nodecapacities, allowing true integration ofthe long haul and the metropolitanoptical networks. Information on allthese products and more are availableon the Nortel Networks Web site at:www.nortelnetworks.com

Nortel Networks is an industry leader and innovator focused on transforming how the world

communicates and exchanges information. The company is supplying its service provider and

enterprise customers with communications technology and infrastructure to enable value-added

IP data, voice and multimedia services spanning Wireline Networks, Wireless Networks, Enterprise

Networks, and Optical Networks. As a global company, Nortel Networks does business in more than

150 countries. More information about Nortel Networks can be found on the Web at:

www.nortelnetworks.comFor more information, contact your Nortel Networks representative, or call 1-800-4 NORTEL or 1-800-466-7835 from anywhere in North America.

*Nortel Networks, the Nortel Networks logo, the globemark design, Preside, and OPTera are trademarks of Nortel Networks. All other trademarks are the property of their owners.

Copyright 2003 Nortel Networks. All rights reserved. Information in this document is subject to change without notice.Nortel Networks assumes no responsibility for any errors that may appear in this document.

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