Breaking the Physical Barriers with eDCO (pdf)
Electronic Dynamically Compensating Optics (eDCO) is a leading edge technology that breaks the physical barriers to enable reliable and cost-effective broadband connectivity across 2000+ km and over any fiber build-out, while ensuring simple network management, flexibility and scalability to meet the requirements of future growth.
Electronic Dynamically Compensating Optics (eDCO) is a leading edge technology that breaks the physical barriers to enable reliable and cost-effective broadband connectivity across 2000+ km and over any fiber build-out, while ensuring simple network management, flexibility and scalability to meet the requirements of future growth.
A Comparison of Next-generation 40-Gbps Technologies (pdf)
There are many proposed optical transmission systems that offer 40 Gb/s wavelength capacity. The unbridled adoption of these solutions may well depend on the degree to which they overlay on existing DWDM 10 Gb/s links. This paper provides a description of new 40 Gb/s technologies being proposed and reveals their true compatibility with existing 10 Gb/s infrastructure.
There are many proposed optical transmission systems that offer 40 Gb/s wavelength capacity. The unbridled adoption of these solutions may well depend on the degree to which they overlay on existing DWDM 10 Gb/s links. This paper provides a description of new 40 Gb/s technologies being proposed and reveals their true compatibility with existing 10 Gb/s infrastructure.
Heavy Reading White Paper: The Need for Service-Driven Networks (pdf)
Network operators around the world are considering transforming into "next-generation telcos" to remain competitive in a drastically changing environment. This new environment presents challenges and opportunities for network operators, as well as a great deal of risk. One thing is for certain: Telecom operators that don't adapt their business models to 21st-century communications are sure to fail.
Network operators around the world are considering transforming into "next-generation telcos" to remain competitive in a drastically changing environment. This new environment presents challenges and opportunities for network operators, as well as a great deal of risk. One thing is for certain: Telecom operators that don't adapt their business models to 21st-century communications are sure to fail.
Heavy Reading White Paper: Building the Next-Generation Packet-Optical Switching Network (pdf)
The next phase of SONET/SDH to packet network migration is underway, and optical networks must evolve to meet the challenges. To do this, a renewed focus has been placed on optical switching innovations and a tighter coupling of switching and transport through element integration and a unified control plane. Meanwhile, the network must continue to support legacy SONET/SDH traffic. Also, the network and network elements must have a high degree of modularity so operators can add the features and functions they need, when they need them.
The next phase of SONET/SDH to packet network migration is underway, and optical networks must evolve to meet the challenges. To do this, a renewed focus has been placed on optical switching innovations and a tighter coupling of switching and transport through element integration and a unified control plane. Meanwhile, the network must continue to support legacy SONET/SDH traffic. Also, the network and network elements must have a high degree of modularity so operators can add the features and functions they need, when they need them.
The Intelligent Path to a Service-Enabling Infrastructure (pdf)
The rise in bandwidth demand represents an era of major change in the ways residential and business services are used, sold, and supported on the network. To truly address the financial and technological imperatives of a network operator’s business, a more customizable and optimized approach to switching is required—one that provides a degree of hardware and software modularity and reconfigurability not found in today’s solutions. This new switching flexibility, made possible with a reconfigurable approach, will allow network operators to achieve a service-enabling switching infrastructure that can help drive top-line revenues, decrease costs, and ultimately differentiate offered services to achieve a sustainable competitive advantage.
The rise in bandwidth demand represents an era of major change in the ways residential and business services are used, sold, and supported on the network. To truly address the financial and technological imperatives of a network operator’s business, a more customizable and optimized approach to switching is required—one that provides a degree of hardware and software modularity and reconfigurability not found in today’s solutions. This new switching flexibility, made possible with a reconfigurable approach, will allow network operators to achieve a service-enabling switching infrastructure that can help drive top-line revenues, decrease costs, and ultimately differentiate offered services to achieve a sustainable competitive advantage.
The Value of OTN for Network Convergence and IP/Ethernet Migration (pdf)
Today, network operaters are forced to converge their networks in order to reduce OPEX and also to eliminate unnecessary additional CAPEX on multiple parallel networks. Ciena's CN 4200 OTN implementation maps all services into a common set of wavelengths—simplifying everything from monitoring and deployment to sparing and capacity management.
Today, network operaters are forced to converge their networks in order to reduce OPEX and also to eliminate unnecessary additional CAPEX on multiple parallel networks. Ciena's CN 4200 OTN implementation maps all services into a common set of wavelengths—simplifying everything from monitoring and deployment to sparing and capacity management.
The Road to 100G Networking (pdf)
Carriers are challenged by bandwidth constraints while attempting to accommodate demands for high-speed services. The aggregation of 10GbE on IP routers, coupled with fiber plant exhaust, necessitates 100 Gb/s ports on DWDM equipment and 100GbE ports for switch-to-switch interconnection. This white paper explains how Ciena leads the development of timely, technically innovative 100 Gb/s solutions that operate over existing 10 Gb/s infrastructures.
Carriers are challenged by bandwidth constraints while attempting to accommodate demands for high-speed services. The aggregation of 10GbE on IP routers, coupled with fiber plant exhaust, necessitates 100 Gb/s ports on DWDM equipment and 100GbE ports for switch-to-switch interconnection. This white paper explains how Ciena leads the development of timely, technically innovative 100 Gb/s solutions that operate over existing 10 Gb/s infrastructures.
The Network as a Programmable Service-Delivery Engine (pdf)
Service providers face the increasing need to capitalize on the paradigm shift occurring in the ways consumers and enterprises perceive and use network services and bandwidth. To remain differentiated and valuable to end-users, providers must transition networks to service-driven and highly programmable infrastructures.
Service providers face the increasing need to capitalize on the paradigm shift occurring in the ways consumers and enterprises perceive and use network services and bandwidth. To remain differentiated and valuable to end-users, providers must transition networks to service-driven and highly programmable infrastructures.
Provider Backbone Bridging – Traffic Engineering of Carrier Ethernet Services (pdf)
Due to its ubiquity and ease of use, Ethernet, in the form of PBB-TE, is positioned to capitalize on the sizeable opportunity of delivering and transporting Carrier Ethernet services.
Due to its ubiquity and ease of use, Ethernet, in the form of PBB-TE, is positioned to capitalize on the sizeable opportunity of delivering and transporting Carrier Ethernet services.
Making the Case for Converged Ethernet Transport (pdf)
This white paper examines the market drivers, key benefits, and main applications for converged Ethernet transport, and provides an overview of the CN 4200 FlexSelect Advanced Services Platform Family—including the new G10/G10X Ethernet service modules, which deliver a cost-effective, high-performance, manageable packet optical networking platform.
This white paper examines the market drivers, key benefits, and main applications for converged Ethernet transport, and provides an overview of the CN 4200 FlexSelect Advanced Services Platform Family—including the new G10/G10X Ethernet service modules, which deliver a cost-effective, high-performance, manageable packet optical networking platform.
Ethernet and MPLS OAM (pdf)
Ciena’s Carrier Ethernet Service Delivery solution enables service providers to operate, administrate, and maintain any mix of Ethernet and MPLS-based L2 VPNs effectively. By leveraging this unique OAM capability, service providers can protect current revenue and maximize revenue growth, while reducing operational costs.
Ciena’s Carrier Ethernet Service Delivery solution enables service providers to operate, administrate, and maintain any mix of Ethernet and MPLS-based L2 VPNs effectively. By leveraging this unique OAM capability, service providers can protect current revenue and maximize revenue growth, while reducing operational costs.
Heavy Reading White Paper: Growing MSO Enterprise Services Revenue in an Economic Downturn (pdf)
MSOs can benefit from today's challenging economic conditions by capturing enterprise market share from legacy telecom players by offering cost-effective, competitively priced, rapidly delivered, and reliably operated and maintained Ethernet services that adapt to changing customer demands.
MSOs can benefit from today's challenging economic conditions by capturing enterprise market share from legacy telecom players by offering cost-effective, competitively priced, rapidly delivered, and reliably operated and maintained Ethernet services that adapt to changing customer demands.
4G Wireless Backhaul (pdf)
Wireless carriers are scrambling to keep pace with a growing demand for mobile Internet services, and wireless equipment vendors are developing fourth generation (4G) technologies that can provide IP-based, high-speed broadband services for fixed, nomadic, and mobile users.
Wireless carriers are scrambling to keep pace with a growing demand for mobile Internet services, and wireless equipment vendors are developing fourth generation (4G) technologies that can provide IP-based, high-speed broadband services for fixed, nomadic, and mobile users.
Analysis and Benefits of Carrier Ethernet in Metro Networks (pdf)
Carrier Ethernet, a new variety of Ethernet, is positioned to dominate emerging business and residential networks. This paper examines the characteristics of Carrier Ethernet in the transport and delivery of a wide range of services and applications, and explores the service’s growth potential in the market.
Carrier Ethernet, a new variety of Ethernet, is positioned to dominate emerging business and residential networks. This paper examines the characteristics of Carrier Ethernet in the transport and delivery of a wide range of services and applications, and explores the service’s growth potential in the market.
ROADMs in Network Architectures (pdf)
ROADM delivers new flexibility to DWDM networks by enabling dynamic, transparent optical wavelength add/drop functioning, and adds considerable agility and robustness to network architectures—vastly improving service velocity and lowering TCO.
ROADM delivers new flexibility to DWDM networks by enabling dynamic, transparent optical wavelength add/drop functioning, and adds considerable agility and robustness to network architectures—vastly improving service velocity and lowering TCO.
OTN Outperforms SONET/SDH (pdf)
Cable operators’ Hybrid Fiber-Coax (HFC) plants pass within half a mile of some 80 percent of business locations. Therefore, extending the fiber plant to reach mid-sized to large businesses has never been easier or more rewarding. But what is the best way to aggregate, transport and switch the services for these customers?
Cable operators’ Hybrid Fiber-Coax (HFC) plants pass within half a mile of some 80 percent of business locations. Therefore, extending the fiber plant to reach mid-sized to large businesses has never been easier or more rewarding. But what is the best way to aggregate, transport and switch the services for these customers?
FlexSelect Architecture: Achieving Profitability and Convergence (pdf)
IP and Ethernet packet services are a growing part of the network traffic load, but service providers must continue to support legacy services. Customers cannot be forced to move to packet-based services before they are ready. It makes financial sense for service providers to extend their existing networks to support packet traffic rather than to overlay them with a new network.
IP and Ethernet packet services are a growing part of the network traffic load, but service providers must continue to support legacy services. Customers cannot be forced to move to packet-based services before they are ready. It makes financial sense for service providers to extend their existing networks to support packet traffic rather than to overlay them with a new network.
Practical TDM Service Migration to a Converged Ethernet Infrastructure (pdf)
Until businesses and enterprises complete the transition from TDM private lines to ubiquitous Ethernet to support point-to-point, dedicated inter-office voice and data connectivity, there remains a strong TDM market segment for service providers worldwide. This white paper looks at how TDMoP provides a standards-based method for emulating TDM services over a converged packet network in a very scalable, reliable, and cost-effective way.
Until businesses and enterprises complete the transition from TDM private lines to ubiquitous Ethernet to support point-to-point, dedicated inter-office voice and data connectivity, there remains a strong TDM market segment for service providers worldwide. This white paper looks at how TDMoP provides a standards-based method for emulating TDM services over a converged packet network in a very scalable, reliable, and cost-effective way.
Scaling and Adapting to Ongoing Innovation with Ciena's FlexSelect Architecture (pdf)
Gaining the flexibility to grow new services, change architectures on demand, and scale to high speeds requires a forward-looking, cost-effective approach. Ciena’s FlexSelect™ Architecture addresses these needs by helping network equipment continually adapt to the changing landscape with flexibility, manageability, and assured operations without continual forklift upgrades.
Gaining the flexibility to grow new services, change architectures on demand, and scale to high speeds requires a forward-looking, cost-effective approach. Ciena’s FlexSelect™ Architecture addresses these needs by helping network equipment continually adapt to the changing landscape with flexibility, manageability, and assured operations without continual forklift upgrades.
Cost-Effective, High-Quality, Differentiated Service Bundles Evolve ISPs (pdf)
Traditional ISP roles are changing. As basic Internet access becomes commoditized and margins decrease, ISPs must consider building and controlling their own metro and regional transport network infrastructures to offer higher value-add services. An Ethernet-based approach to these networks enables cost-effective, on-demand bandwidth delivery to meet the needs of the end customer while enhancing overall quality.
Traditional ISP roles are changing. As basic Internet access becomes commoditized and margins decrease, ISPs must consider building and controlling their own metro and regional transport network infrastructures to offer higher value-add services. An Ethernet-based approach to these networks enables cost-effective, on-demand bandwidth delivery to meet the needs of the end customer while enhancing overall quality.
Beyond Carrier Ethernet: Making Ethernet Performance-Grade (pdf)
Ciena is now committed to making Ethernet suitable for use in service provider transport networks. To achieve this end, solutions need to build upon and go beyond Carrier Ethernet requirements. This whitepaper identifies the challenges associated with taking Ethernet to the WAN and proposes a set of solutions required to make Ethernet performance-grade.
Ciena is now committed to making Ethernet suitable for use in service provider transport networks. To achieve this end, solutions need to build upon and go beyond Carrier Ethernet requirements. This whitepaper identifies the challenges associated with taking Ethernet to the WAN and proposes a set of solutions required to make Ethernet performance-grade.
Heavy Reading White Paper: Helping MSOs Solve the Commercial Puzzle (pdf)
This white paper examines the commercial telecom services market, exploring the possibilities and challenges for cable operators as they seek to expand beyond their traditional base of residential customers, as well as the opportunities for MSOs to capture particular segments of the enterprise market through targeted network architecture improvements, equipment upgrades, and service rollouts.
This white paper examines the commercial telecom services market, exploring the possibilities and challenges for cable operators as they seek to expand beyond their traditional base of residential customers, as well as the opportunities for MSOs to capture particular segments of the enterprise market through targeted network architecture improvements, equipment upgrades, and service rollouts.
Ovum RHK White Paper: OTN Emerges as a Must Have (pdf)
OTN, the Optical Transport Network, dates back to 1998, but is only now hitting its stride as a requirement for next-generation optical network elements. OTN was one of many promising optical technologies whose rollout was delayed by post-bubble investment declines. As network operators have begun spending again, and as service bandwidths and transport pipes are getting larger, OTN has reemerged as a “must have” technology, but not for the lofty reasons many often cite.
OTN, the Optical Transport Network, dates back to 1998, but is only now hitting its stride as a requirement for next-generation optical network elements. OTN was one of many promising optical technologies whose rollout was delayed by post-bubble investment declines. As network operators have begun spending again, and as service bandwidths and transport pipes are getting larger, OTN has reemerged as a “must have” technology, but not for the lofty reasons many often cite.
Infonetics Research White Paper: ROADM Evolves...Should You Be Paying Attention? (pdf)
ROADM technologies and ROADM-enabled Wavelength Division Multiplexing (WDM) systems have come a long way, and are on the verge of becoming commonplace in the networks of service providers around the world. ROADMs are here to stay as an integral part of WDM networks, since they reduce the costs of networks and open the opportunity for service providers to build a versatile, agile, easily-manageable optical transport layer.
ROADM technologies and ROADM-enabled Wavelength Division Multiplexing (WDM) systems have come a long way, and are on the verge of becoming commonplace in the networks of service providers around the world. ROADMs are here to stay as an integral part of WDM networks, since they reduce the costs of networks and open the opportunity for service providers to build a versatile, agile, easily-manageable optical transport layer.
CN 4200: A Business Case Supporting Flexible and Scalable Convergence (pdf)
With the release of the CN 4200, Ciena has introduced a fresh alternative for cable MSOs seeking converged transport solutions based on DWDM to grow bandwidth capacity and lower operational expense. This whitepaper presents a business case comparing the market leader for Traditional Metro DWDM, the market leader for SONET MSTP with integrated ROADM, and the CN 4200 in addressing the needs of a representative cable metro network. This business case clearly demonstrates that in building a future-proof transport network, the CN 4200 offers optimal cost efficiency, unprecedented flexibility, unsurpassed service management and the most efficient use of fiber available in the industry. Also illustrated, is how the CN 4200 solution provides a 49-58% Capital Expense (CAPEX) savings versus the SONET MSTP plus ROADM solution and a 48-53% CAPEX savings versus the Traditional Metro DWDM solution over the course of a three year period (based on list prices).
With the release of the CN 4200, Ciena has introduced a fresh alternative for cable MSOs seeking converged transport solutions based on DWDM to grow bandwidth capacity and lower operational expense. This whitepaper presents a business case comparing the market leader for Traditional Metro DWDM, the market leader for SONET MSTP with integrated ROADM, and the CN 4200 in addressing the needs of a representative cable metro network. This business case clearly demonstrates that in building a future-proof transport network, the CN 4200 offers optimal cost efficiency, unprecedented flexibility, unsurpassed service management and the most efficient use of fiber available in the industry. Also illustrated, is how the CN 4200 solution provides a 49-58% Capital Expense (CAPEX) savings versus the SONET MSTP plus ROADM solution and a 48-53% CAPEX savings versus the Traditional Metro DWDM solution over the course of a three year period (based on list prices).
Carrier-Grade Requirements for Cable Networks (pdf)
For years, cable operators have built multiple networks to satisfy separate customer applications. From video broadcast to Internet access, to Video On Demand (VOD), these separate network infrastructures were built at the lowest up front capital cost and with the minimum reliability to meet individual application requirements. But this approach is no longer acceptable. The migration to digital infrastructure that will support multiple services is almost complete, and competitive pressures from Direct Broadcast Satellite (DBS) providers and telcos, as well as customer demand for higher reliability and better performance, are forcing operators to rethink their metro area networks. The result: operators are at a crossroads.
For years, cable operators have built multiple networks to satisfy separate customer applications. From video broadcast to Internet access, to Video On Demand (VOD), these separate network infrastructures were built at the lowest up front capital cost and with the minimum reliability to meet individual application requirements. But this approach is no longer acceptable. The migration to digital infrastructure that will support multiple services is almost complete, and competitive pressures from Direct Broadcast Satellite (DBS) providers and telcos, as well as customer demand for higher reliability and better performance, are forcing operators to rethink their metro area networks. The result: operators are at a crossroads.
