Transitioning Wireless Backhaul Networks to True Carrier Ethernet with foreword by Heavy Reading (pdf)
The wireless backhaul network, traditionally based on TDM technology, is reaching a breaking point. Originally designed to handle narrowband voice traffic, the backhaul network simply does not have the capacity to handle today's mobile traffic. Ciena offers a solution that integrates existing TDM technology with Ethernet to provide operators maximum benefits, while increasing bandwidth and reducing overall costs.
The wireless backhaul network, traditionally based on TDM technology, is reaching a breaking point. Originally designed to handle narrowband voice traffic, the backhaul network simply does not have the capacity to handle today's mobile traffic. Ciena offers a solution that integrates existing TDM technology with Ethernet to provide operators maximum benefits, while increasing bandwidth and reducing overall costs.
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.
The Business Case for a Simplified Architecture for Ethernet Transport (pdf)
This whitepaper presents a business case comparing the use of Ciena’s FlexSelect Architecture for the aggregation, transport and switching of a range of services versus a router-centric design promoted by other vendors. The advantages are compelling: Deploying Ciena’s FlexSelect Architecture solution results in 22 percent lower CAPEX and 46 percent lower OPEX for a five-year TCO that’s 36 percent less than router-centric solutions.
This whitepaper presents a business case comparing the use of Ciena’s FlexSelect Architecture for the aggregation, transport and switching of a range of services versus a router-centric design promoted by other vendors. The advantages are compelling: Deploying Ciena’s FlexSelect Architecture solution results in 22 percent lower CAPEX and 46 percent lower OPEX for a five-year TCO that’s 36 percent less than router-centric solutions.
Making the Case for Converged Ethernet Transport: The Advantages of Integrating Layer 2 Ethernet with Layer 0/1 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 and 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 and G10X Ethernet service modules, which deliver a cost-effective, high-performance, manageable packet optical networking platform.
From Promise to Reality: Extending the Reach of Managed Ethernet Services (pdf)
Managed Ethernet services can provide benefits to both enterprises and service providers. Ethernet access solutions must provide nearly ubiquitous service reach over a variety of access media and technologies, be flexible enough to satisfy customers’ current and future requirements without disruptive swapouts, and support and adapt to emerging, standards-based Ethernet OAM for carrier-class manageability. Ciena’s CN 3000 Ethernet Access Series meets and exceeds all of these requirements.
Managed Ethernet services can provide benefits to both enterprises and service providers. Ethernet access solutions must provide nearly ubiquitous service reach over a variety of access media and technologies, be flexible enough to satisfy customers’ current and future requirements without disruptive swapouts, and support and adapt to emerging, standards-based Ethernet OAM for carrier-class manageability. Ciena’s CN 3000 Ethernet Access Series meets and exceeds all of these requirements.
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.
CN 5060 OS: Ciena’s Fault-Tolerant, Real-Time Operating System (pdf)
Network reliability is essential to service growth. Public utility commissions and the FCC expect telecommunication services to run at all times. Carrier-class is not good enough—a true converged multiservice Carrier Ethernet/IP network should run as reliably and efficiently as non-stop telecom services, without overbuilding or chronic software pain.
Network reliability is essential to service growth. Public utility commissions and the FCC expect telecommunication services to run at all times. Carrier-class is not good enough—a true converged multiservice Carrier Ethernet/IP network should run as reliably and efficiently as non-stop telecom services, without overbuilding or chronic software pain.
Survivable Optical Networks with foreword by Ovum RHK (pdf)
Globalization and natural disasters have combined to rejuvenate interest in global communications networks, particularly the undersea networks interconnecting with their terrestrial counterparts. As these networks grow and customer needs evolve, mesh protection of undersea links is emerging as an important trend at the optical network layer as operators look to control costs while improving network resiliency.
Globalization and natural disasters have combined to rejuvenate interest in global communications networks, particularly the undersea networks interconnecting with their terrestrial counterparts. As these networks grow and customer needs evolve, mesh protection of undersea links is emerging as an important trend at the optical network layer as operators look to control costs while improving network resiliency.
Evolution to the 100G Transport Network (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 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.
Delivering on the Promise of Ethernet: MEF Services using Ciena's FlexSelect Architecture (pdf)
Service providers must develop a strategy for supporting Ethernet along with the existing mix of TDM, Frame Relay, and ATM services. Ciena offers a way for providers to transition those legacy offerings to an Ethernet format. Rather than continue to invest in legacy infrastructure and manage multiple types of transport networks, service providers now have a viable option for transitioning all traffic to a cost-effective, highly reliable Ethernet-based infrastructure.
Service providers must develop a strategy for supporting Ethernet along with the existing mix of TDM, Frame Relay, and ATM services. Ciena offers a way for providers to transition those legacy offerings to an Ethernet format. Rather than continue to invest in legacy infrastructure and manage multiple types of transport networks, service providers now have a viable option for transitioning all traffic to a cost-effective, highly reliable Ethernet-based infrastructure.
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.
High-Performance Ethernet Solutions for Service Providers (pdf)
To be an economical convergence catalyst in the WAN, Ethernet must be deployed in a way that addresses issues comprehensively and allows for Ethernet-optimized packet transport infrastructures. As the primary transport for all next-generation services, performance-grade and low-cost Ethernet solutions are critical for success. Standards bodies, customers and equipment manufacturers agree that high-performance Ethernet is now a requirement for next-generation networks.
To be an economical convergence catalyst in the WAN, Ethernet must be deployed in a way that addresses issues comprehensively and allows for Ethernet-optimized packet transport infrastructures. As the primary transport for all next-generation services, performance-grade and low-cost Ethernet solutions are critical for success. Standards bodies, customers and equipment manufacturers agree that high-performance Ethernet is now a requirement for next-generation networks.
Intelligent Optical Control Plane Architectures (pdf)
Intelligent control plane technology offers many capabilities and benefits that can lower costs dramatically, improve network reliability and increase customer satisfaction. This technology is demonstrable today on the CoreDirector Multiservice Switch, a key component of Ciena's FlexSelect Architecture. This white paper examines the control plane strategy, interoperability success and networking dividends delivered by CoreDirector intelligent networks.
Intelligent control plane technology offers many capabilities and benefits that can lower costs dramatically, improve network reliability and increase customer satisfaction. This technology is demonstrable today on the CoreDirector Multiservice Switch, a key component of Ciena's FlexSelect Architecture. This white paper examines the control plane strategy, interoperability success and networking dividends delivered by CoreDirector intelligent networks.
Optimizing Networks in Transition with Multiservice Pseudowires (pdf)
This white paper provides an overview of pseudowire technology and examines multiservice pseudowire benefits and deployment scenarios in key applications, such as broadband Triple Play, business data services and 2G/3G wireless backhaul. The paper also discusses technical considerations and requirements when constructing networks to enable pseudowire-based service convergence, such as reliability, Operations, Administration and Maintenance (OAM), scalability, interoperability and multiservice support.
This white paper provides an overview of pseudowire technology and examines multiservice pseudowire benefits and deployment scenarios in key applications, such as broadband Triple Play, business data services and 2G/3G wireless backhaul. The paper also discusses technical considerations and requirements when constructing networks to enable pseudowire-based service convergence, such as reliability, Operations, Administration and Maintenance (OAM), scalability, interoperability and multiservice support.
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.
Heavy Reading White Paper: Optical Ethernet's Role in Enabling Carrier-Class Ethernet Services (pdf)
In addition to significant operational efficiencies, carrier-grade Optical Ethernet now enables higher-value enterprise connectivity services designed to support time-sensitive applications. In this paper, "Optical Ethernet's Role in Delivering Carrier-Class Ethernet Services," Heavy Reading discusses new techniques for delivering Ethernet services that support high security and availability, low latency, and low packet loss - essential features for mission-critical applications - while capitalizing on Ethernet efficiencies.
In addition to significant operational efficiencies, carrier-grade Optical Ethernet now enables higher-value enterprise connectivity services designed to support time-sensitive applications. In this paper, "Optical Ethernet's Role in Delivering Carrier-Class Ethernet Services," Heavy Reading discusses new techniques for delivering Ethernet services that support high security and availability, low latency, and low packet loss - essential features for mission-critical applications - while capitalizing on Ethernet efficiencies.
Solving First Mile Metro Access Challenges with Optical Ethernet (pdf)
As metro service providers try to lower operational and capital costs while introducing new services, Optical Ethernet becomes the clear choice for solving first mile access challenges. This white paper compares and contrasts metro access solutions, including adding Ethernet using multiservice platforms, trenching new fiber, and deploying best-of-breed solutions designed for carrier-grade Optical Ethernet transport. It also demonstrates the value of Optical Ethernet and shows how providers can deploy Optical Ethernet side-by-side with legacy SONET/SDH networks.
As metro service providers try to lower operational and capital costs while introducing new services, Optical Ethernet becomes the clear choice for solving first mile access challenges. This white paper compares and contrasts metro access solutions, including adding Ethernet using multiservice platforms, trenching new fiber, and deploying best-of-breed solutions designed for carrier-grade Optical Ethernet transport. It also demonstrates the value of Optical Ethernet and shows how providers can deploy Optical Ethernet side-by-side with legacy SONET/SDH networks.
Incorporating Optical Ethernet into ILEC Operational Models (pdf)
Despite today's constrained capital budgets, new Optical Ethernet services hold tremendous new revenue potential for ILECs that can deliver them simply, swiftly, and cost-effectively. This white paper identifies how to overcome technical and regulatory adoption barriers and defines ILEC requirements for the successful deployment of Optical Ethernet services. It discusses Ethernet access options for ILECs, concluding that Ethernet CWDM transport solutions are the only way to overcome adoption barriers and enable the profitable deployment of Optical Ethernet. It also provides an overview of Mainstream Operational Adaptation that shows ILECs how they can deploy Optical Ethernet services within existing operational models. Furthermore, it includes an example of SONET Wraparound solutions that allow ILECs to capitalize on existing fiber to deliver Optical Ethernet alongside SONET services while leveraging existing OAM&P infrastructure, methods, and procedures.
Despite today's constrained capital budgets, new Optical Ethernet services hold tremendous new revenue potential for ILECs that can deliver them simply, swiftly, and cost-effectively. This white paper identifies how to overcome technical and regulatory adoption barriers and defines ILEC requirements for the successful deployment of Optical Ethernet services. It discusses Ethernet access options for ILECs, concluding that Ethernet CWDM transport solutions are the only way to overcome adoption barriers and enable the profitable deployment of Optical Ethernet. It also provides an overview of Mainstream Operational Adaptation that shows ILECs how they can deploy Optical Ethernet services within existing operational models. Furthermore, it includes an example of SONET Wraparound solutions that allow ILECs to capitalize on existing fiber to deliver Optical Ethernet alongside SONET services while leveraging existing OAM&P infrastructure, methods, and procedures.
Bringing Carrier Grade Ethernet to Metro Networks (pdf)
Ethernet has become the prevalent and ubiquitous link-layer technology in the LAN, and has evolved from a shared-medium broadcast technology to dedicated full duplex links between Ethernet switches. Because of Ethernet's simplicity, cost-effectiveness, and scalability to 10 Gbps and beyond, there is significant demand for Ethernet connectivity in the metropolitan network and service providers are scrambling to cost-effectively capitalize on this opportunity. This white paper demonstrates how to overcome the historical limitations of Ethernet and defines the carrier-grade requirements for Optical Ethernet solutions so service providers can benefit from the carrier-grade features of SONET/SDH without the complexity and cost.
Ethernet has become the prevalent and ubiquitous link-layer technology in the LAN, and has evolved from a shared-medium broadcast technology to dedicated full duplex links between Ethernet switches. Because of Ethernet's simplicity, cost-effectiveness, and scalability to 10 Gbps and beyond, there is significant demand for Ethernet connectivity in the metropolitan network and service providers are scrambling to cost-effectively capitalize on this opportunity. This white paper demonstrates how to overcome the historical limitations of Ethernet and defines the carrier-grade requirements for Optical Ethernet solutions so service providers can benefit from the carrier-grade features of SONET/SDH without the complexity and cost.
