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- Wavelength Assignment to Minimize the Number of SONET ADMs in WDM Rings
- Optical Wavelength Division Multiplexing WDM rings are being deployed to support SONET/SDH self-healing rings. The cost of such a system is dominated by the SONET Add/Drop Multiplexers ADMs. To minimize the system cost, algorithms must be developed to assign wavelengths to lightpaths in the system so that the number of...
- Tags: SONET, Florida State University, WDM, Wavelength Assignment, Fiber Optics, Optical Networking, Networking, Telecommunications
- White papers
- Hitless Network Engineering of SONET Rings
- Shrinking capital expenditure budgets are forcing telecom service providers to explore engineering tools that extract greater utilization from their existing transport infrastructure. This paper explores the challenges in engineering SONET rings to support higher traffic volumes. Unlike network design tools, engineering operations have to reconfigure live traffic and do so...
- Tags: SONET, Network, SONET Ring, Network Design, Optical Networking, Fiber Optics, Networking, Telecommunications
- White papers
- How Cisco IT Migrated TDM Local Access From SONET to OC-192 Infrastructure
- By 2003, 18 more Cisco buildings on the San Jose campus were using so much capacity that customer-provided access would be more economical, but Cisco could not add these buildings to the legacy infrastructure of unconnected SONET rings. The legacy infrastructure had other drawbacks as well, including high management burden,...
- Tags: Microsoft Access, SONET, Information Technology, Cisco Systems Inc.
- Case studies 2007-12-19
- Element Manager for WDM (SONET) Network Elements
- Wave Division Multiplexing technologies has provided more Bandwidth to transmission systems than was ever imagined earlier. The solution-path undertaken by Aricent to convert this opportunity into a success story comprised working on an Element Management system based on a distributed architecture using CORBA and Management applications being developed using JAVA....
- Tags: Software, SONET, Network, Object-oriented, WDM, Wave Division Multiplexing Technology, Optical Networking, Ooa/Ood/Oop, Networking, Software Development, Software/Web Development
- Case studies 2006-03-10
- SAN Over SDH/SONET for Business Continuity and Disaster Recovery
- Tremendous growth in enterprise storage needs has created demand for reliable and cost-effective backup and data protection solutions. The emergence of storage extension solutions is a natural evolution of the growing use of Storage Area Networks SANs within the enterprise. These solutions provide data connectivity between separate SAN islands within...
- Tags: SONET, SAN, SDH, Business Continuity, Disaster Recovery, Storage, Storage Area Networks (SAN), Storage Management, Hardware
- White papers 2005-12-01
- Introduction to SONET
- SONET stands for Synchronous Optical NETwork. The SONET format allows different types of formats to be transmitted on one line. SONET is a long term solution for a mid-span-meet between vendors. The other major advantage is that SONET allows ADDING and DROPING signals with a single multiplexer. Communication between various...
- Tags: SONET, DS1, Fiber Optics, Optical Networking, Networking, Telecommunications
- White papers 2003-01-01
Additional Resources
- High-Speed Optical Network Transparency
- Where do high speed optical transparency technologies fit into wired infrastructure equipment? This webcast covers the roots of this historic evolution of transparency; discusses current trends; and offers perspectives on future directions for: generic SONET/SDH -> OTN transport (SONET/SDH over OTN); SONET-over-SONET / G.modem transparency; (G.707: SONET/SDH over OTN over...
- Tags: SONET/SDH, Fiber Optics, Optical Networking, Networking, Telecommunications
- Webcasts
- Next-Gen Sonet/SDH Chips
- Much has happened in the development of next-generation Sonet/SDH systems in the past year. The big driver in this field is user demand for Ethernet-based services, which is growing rapidly around the world. In many cases, carriers will provide these services over existing Sonet/SDH infrastructure using multiservice provisioning platforms boasting...
- Tags: Provisioning, SONET/SDH, Fiber Optics, Optical Networking, Networking, Telecommunications
- Webcasts
- The Future of Sonet/SDH
- Sonet/SDH is no longer spoken of as a "legacy technology" - something to be replaced by the "next big thing." There is a growing and urgent realization among carriers around the world that when it comes to next-generation telco infrastructure, Sonet/SDH is the next big thing - and that for...
- Tags: SONET/SDH, Fiber Optics, Optical Networking, Networking, Telecommunications
- White papers 2003-11-14
- Deploying Data Services Over SONET/SDH
- This webcast discusses how to cost-effectively provide data services over your existing SONET/SDH infrastructure, and the underlying technologies, topologies, and architectures available for you to consider. Advanced services such as Voice over IP, video, distance learning, disaster recovery, and business continuance require both bandwidth and a robust, reliable data transport...
- Tags: Data Service, SONET/SDH, Fiber Optics, Optical Networking, Networking, Telecommunications
- Webcasts
- Packet-Over-SONET/SDH
- Synchronous Optical Network/Synchronous Digital Hierarchy (SONET/SDH) and optical fiber have emerged as significant technologies for building large-scale, high speed, Internet Protocol IP-based networks. Even though SONET/SDH is frequently labeled as "Old World" because it is a time-division multiplexing TDM technology optimized for voice traffic, its capability to provide high-bandwidth capacity...
- Tags: SONET/SDH, Cisco Systems Inc., Fiber Optics, Optical Networking, Networking, Internet, Telecommunications
- White papers 2004-08-01
- Accurate High-Speed SONET/SDH Jitter Measurement
- Learn the principal sources of SONET/SDH jitter, the reasons previous testers gave such widely differing measurements, and the new ITU-T 0.172 process for accurately calibrating jitter signals.
- Tags: Measurement, Fiber Optics, Optical Networking, Networking, Telecommunications
- Webcasts
- Testing Ethernet Over SONET/SDH
- Data traffic levels continue to increase. As a result, there is a desire to optimize transport networks originally designed for voice to accommodate this traffic. The majority of metro and long-haul networks are based on SONET and SDH, as these protocols carry fixed-bandwidth circuit-switched voice very effectively. Ethernet over SONET/SDH...
- Tags: Network, SONET/SDH, Ethernet Over SONET/SDH, Ethernet, Fiber Optics, Optical Networking, Networking, Network Technology, Telecommunications
- White papers 2004-07-07
- Efficient and Flexible Transport of Next-Generation Data Services Over SONET/SDH Using GFP, VCAT and LCAS
- New services such as Ethernet and storage area networks SANs could not efficiently be delivered over existing SONET/SDH networks despite the proven value of, and considerable investment in this infrastructure. However, the maturity of three new technologies - Generic Framing Procedure GFP, Virtual Concatenation VCAT, and Link Capacity Adjustment Scheme...
- Tags: Network, SONET/SDH, Fiber Optics, Optical Networking, Networking, Telecommunications
- White papers 2005-06-01
- Nortel Network Case Study: The School District of Philadelphia
- The School District of Philadelphia - the seventh largest school district in the United States comprised of more than 200,000 students. They wanted to improve the quality of education provided to its large and diverse student base through the use of standardized electronic curriculum and assessment in all of its...
- Tags: Network, Nortel Networks Corp., Ethernet, Fiber Optics, Networking, Optical Networking, Network Technology, Telecommunications
- Case studies 2005-05-17
- Differential Delay Aware Routing for Ethernet Over SONET/SDH
- The Virtual Concatenation protocol in SONET/SDH has ushered in a novel routing paradigm that enables a circuit to be "Split" and routed over multiple paths. However, this diverse routing causes differential delay among the paths which can impact service if not accounted for in the routing. This paper introduces the...
- Tags: Aware, Lucent Technologies Inc., Formulation, SONET/SDH, Alcatel, Programming, Fiber Optics, Optical Networking, Ethernet, Networking, Development Tools, Telecommunications, Software Development, Software/Web Development
- White papers
- OC-192c/STM-64c and 10 Gigabit Ethernet WAN PHY
- The introduction of 10 Gigabit Ethernet (10 GbE) WAN PHY into the IP/Ethernet networking community has led to confusion over the applicability between 10 GbE WAN PHY and OC-192c/STM-64 interfaces. Both of these interfaces support transmission at 9.6 Gbps, support SONET/SDH framing, and can be connected to SONET/SDH ADM or...
- Tags: Force10 Networks Inc., 10-Gigabit Ethernet, SONET/SDH, Ethernet, WANs, Network Technology, Optical Networking, Networking, Fiber Optics, Telecommunications
- White papers 2007-08-01
- Routing Updates Over APS on POS Interfaces
- This paper clarifies how routing protocols operate over Packet Over SONET POS interfaces configured as working or protective members of Automatic Protection Switching APS setups. The Cisco 12000 series APS implementation supports unidirectional and bidirectional APS modes. The default operational mode is bidirectional, which means that either W or P...
- Tags: Point-of-sale, Network, Circuit, Cisco Systems Inc., Networking
- White papers 2006-05-16
- Advanced Intelligence in Cisco Multiservice Transport Product
- The advent of Reconfigurable Optical Add/Drop Multiplexer ROADM technology and mesh optical networks challenges the operating model for transport service providers, with SONET/SDH moving to the edge and even being replaced by Layer 2 and Layer 3 traffic. Traditional point-to-point Wavelength-Division Multiplexing WDM becomes complex all-optical networking, eliminating the need...
- Tags: SONET/SDH, Cisco Systems Inc., Optical Networking, Fiber Optics, Networking, Telecommunications
- White papers 2007-01-01
- Efficient Transport of Storage and Ethernet Across Hybrid DWDM and SONET/SDH Networks
- Proliferation of storage traffic due to disaster recovery and business continuance requirements, combined with the high cost associated with downtime or loss of data, justifies the need for interconnecting geographically dispersed data centers. At the same time, mission-critical applications such as e-business and customer relationship management, and emerging applications such...
- Tags: DWDM, SONET/SDH, Ethernet, Optical Networking, Storage, Networking, Fiber Optics, Hardware, Telecommunications
- White papers 2006-01-01
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