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.
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?
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.
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.
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.
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.
