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© Ciena Corporation 2025. All rights reserved. Proprietary Information. Overview of Ciena May 2025
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© Ciena Corporation 2025. All rights reserved. Proprietary Information.2 Agenda 1. Ciena overview 2. Our business in the global context 3. Growth strategy
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© Ciena Corporation 2025. All rights reserved. Proprietary Information.3 Ciena is the global leader in high-speed connectivity We build the most adaptive networks in the industry, enabling customers to anticipate and meet ever-increasing digital demands. Prioritizing collaborative relationships with our customers, partners and communities, we create flexible, open and sustainable networks that better serve all users — today and into the future. Headquartered in Maryland, USA, and incorporated in 1992, Ciena enables customers to deliver richer, more connected experiences for all users. 3,800+ R&D specialists 8,600+ employees $4B FY24 revenue 1,600+ customers worldwide $1.3B cash & investments (FYE24) 2,200+ patents
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© Ciena Corporation 2025. All rights reserved. Proprietary Information.4 Ciena is ranked and respected globally #1 Globally ▪ DCI ▪ Optical for internet content provider customers #1 N. America ▪ DCI ▪ Total optical networking ▪ Optical packet #1 Globally ▪ Total optical networking ▪ Purpose-built/compact modular DCI #1 Globally ▪ Purpose-built/compact modular DCI ▪ Optical for cloud and colo ▪ SLTE WDM #1 N. America ▪ Total optical networking ▪ Optical for cloud and colo ▪ Routing/Access #2 Globally ▪ Total optical networking ▪ Optical for service provider ▪ Routing/Access Market leadership #1 Globally ▪ Purpose-built/compact modular DCI ▪ SLTE WDM ▪ Access switching #1 N. America ▪ Total optical networking ▪ Purpose-built/compact modular DCI ▪ Access switching #2 Globally ▪ Total optical networking Industry recognition Transport Hardware Report, 4Q24 Optical Transport Report, 4Q24 Optical Networking Report, 3Q24 Service Provider Switching and Routing Report, 3Q24 WaveLogic 6 Extreme WaveRouter-7 Blue Planet 5G vRAN Rollout Automation Best Use of Technology including AI 8140 Router 5169 Router Ciena’s vBNG WaveLogic 6
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© Ciena Corporation 2025. All rights reserved. Proprietary Information.5 Joe Cumello SVP and GM of Blue Planet Our leaders set strategic vision and drive us forward James E. Moylan, Jr. SVP and Chief Financial Officer David M. Rothenstein SVP and Chief Strategy Officer Sheela Kosaraju SVP and General Counsel, Interim Chief People Officer Jason Phipps SVP, Global Customer Engagement Brodie Gage SVP, Global Products & Supply Chain Dino DiPerna SVP, Global Research & Development Scott McFeely Executive Advisor Rebecca Smith SVP, Global Marketing & Communications Gary B. Smith President and Chief Executive Officer
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© Ciena Corporation 2025. All rights reserved. Proprietary Information.6 Ciena’s acquisitions have added strength and breadth 2016 Centina: Service assurance analytics and network performance management solutions World Wide Packets: Carrier Ethernet access/aggre gation, Ethernet operating software 2008 2009 Cyan: Blue Planet – SDN, NFV and packet- optical solutions Packet Design: Network performance management software DonRiver: Federated inventory solutions and OSS specialists Vyatta: Virtual routing and switching technology 2015 2018 2019 2021 Nortel Metro Ethernet Networks: Optical and Carrier Ethernet assets TeraXion: High-speed indium phosphide and silicon photonics technologies Xelic: Networking IP for ASIC and FPGA applications Benu Networks: Could-native, edge software solutions Tibit Communications: High-speed passive optical network (PON) solutions 2022
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© Ciena Corporation 2025. All rights reserved. Proprietary Information.7 Financial and operational strength provide a differentiated, solid foundation Profitable Growth R&D and Go-to- Market Investment Business Transformation Shareholder Value
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© Ciena Corporation 2025. All rights reserved. Proprietary Information. Our business in the global context
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© Ciena Corporation 2025. All rights reserved. Proprietary Information.9 The pace of bandwidth consumption is explosive, and may increase due to AI Cloud economy 2014-2018 Internet monetization 2009-2013 Introduction of Smart Devices 2004-2008 Digital transformation 2019-2023 0.93 ZB 3.9 ZB0.17 ZB 48.9 ZB14.8 ZB AI generation 2024-2028
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© Ciena Corporation 2025. All rights reserved. Proprietary Information.10 Our vision for network modernization is the Adaptive Network Software Control and Automation ▪ AI-driven management and automation of services across multi-layer, multi-vendor, multi-domain networks Programable Infrastructure ▪ Dynamic pool of virtual and physical resources ▪ Manageable through common, open software interfaces ▪ Highly instrumented to understand the network state Analytics and Intelligence ▪ Leveraging AI, proactively predicts potential problems and anticipates network trends—before they occur ▪ Leverages instrumented infrastructure telemetry Services ▪ Services to help build, operate and improve network and operational performance
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© Ciena Corporation 2025. All rights reserved. Proprietary Information.11 Ciena’s hardware portfolio addresses every segment of the network ELS coherent-optimized Open Line System (OLS) WaveRouter family Metro Micro OLT Plugs (PON) ONU/ONT Portfolio Passive Optical Networking (PON) Access Waveserver family Reconfigurable Line System (RLS) 6500 family Long-haul & Submarine WaveLogic Nano 81xx family 51xx family 39xx family Waveserver E-Series
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© Ciena Corporation 2025. All rights reserved. Proprietary Information.12 Ciena and Blue Planet automation software offerings complement and strengthen our hardware portfolio Navigator NCS shelf-level view Screenshot: Blue Planet Inventory Screenshot: Navigator NCS shelf-level view
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© Ciena Corporation 2025. All rights reserved. Proprietary Information.13 Ciena’s portfolio serves diverse customer segments and applications Customer segments ▪ Cloud Providers ▪ Service Providers ▪ Cable Operators (MSOs) ▪ Enterprise / Government / R&E Key applications ▪ Subsea ▪ Wholesale / Managed Optical Fiber Networks (MOFN) ▪ Regional & Long Haul ▪ Metro DCI ▪ Campus
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© Ciena Corporation 2025. All rights reserved. Proprietary Information. Our growth strategy
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© Ciena Corporation 2025. All rights reserved. Proprietary Information.15 Ciena’s strategy leverages our optical technology to create expanded addressable market opportunities Optical Long Distance Optical Metro / Region Disaggregated Data Center Converged Access & Metro Networks Optical Foundation PON Pluggables Components IP RoutingBroadband Access AI Fabrics Metro Routing Access & Aggregation Optical Systems Metro DCILong HaulSubmarine Core Business Expansion Opportunities We specialize in optical to become the best at moving bits over fiber We are now leveraging our optical leadership to grow into new, adjacent markets
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© Ciena Corporation 2024. All rights reserved. Proprietary Information.16 Our addressable market expansion strategy allows us to access higher- growth markets 1Sources: Dell'Oro, Cignal AI, LightCounting, and Ciena internal analysis.
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© Ciena Corporation 2025. All rights reserved. Proprietary Information.17 Network applications based on reach Wide Area Network Continent Continent City or region City or region Metro site Metro site 1000s km 100s km <10,000 km In and Around the Data Center Data Center Data Center 2 km - 20 km Rack Rack 10s m - 2 km Switch / Server / Storage Switch / Server / Storage 1 m - 10s m
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© Ciena Corporation 2025. All rights reserved. Proprietary Information.18 ¹Campus <20km Fabric <2km AI Cluster Optics/Copper <500m 400G 800G 1.6T 3.2T IMDD IMDD IMDD IMDD IMDD IMDD IMDD / Coherent IMDD / Coherent CoherentIMDD / Coherent IMDD / Coherent Coherent CoherentCoherentCoherentMetro DCI <100km Around DCInside DC Coherent fits where high-bandwidth rates are required in and around the data center IMDD / Coherent
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© Ciena Corporation 2025. All rights reserved. Proprietary Information.19 Ciena is expanding to serve a broader ecosystem and range of opportunities Coherent Modules DSP ASIC High-speed Analog and Electro-opticsSystems SerDes – Serializer-deserializer DSP – digital signal processor DAC/ADC – digital/analog converter ITLA – laser assembly DRV – driver RCVR – receiver MOD – modulator TIA – transimpedance amplifier DSP DAC/ ADC DRV SerDes MOD TIA RCVR nITLA DSP DAC/ ADCSerDes N N DAC/ ADC DRV MOD TIA RCVR SerDes TODAY EXPANSION
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© Ciena Corporation 2025. All rights reserved. Proprietary Information.20 Ciena interconnects roadmap to address multiple IMDD applications ¹Campus <20km Fabric <2km AI Cluster Optics/Copper <500m 400G 800G 1.6T 3.2T IMDD IMDD IMDD IMDD IMDD IMDD IMDD IMDD / Coherent IMDD / Coherent CoherentIMDD / Coherent IMDD / Coherent Coherent CoherentCoherentCoherentMetro DCI <100km Around DCInside DC IMDD / Coherent High-speed interconnects for IMDD in the data center
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© Ciena Corporation 2025. All rights reserved. Proprietary Information.21 Two-pronged “In and around the data center” strategy Address the growing metro campus DC market (2-20km) (“Around the DC”) with our 1.6T Coherent-Lite solution - a variant of WL6 Nano Intercept the Inside DC market with our coherent optical plugs and components as data rates increase to 3.2T and beyond Access the Inside DC market by combining our high-speed interconnects technologies (DSP, Analog ICs) with IMDD technologies (EML, plugs, assembly) Address the Metro DCI market with WL5 Nano (400ZR/ZR+) and WL6 Nano (800ZR/ZR+) TODAY 2026 COHERENT IMDD FUTURE FUTURE FUTURE
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© Ciena Corporation 2025. All rights reserved. Proprietary Information. Thank You