TechRepublic Resources
- 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
Additional Resources
- 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
- 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
- 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
- Five Reasons to Adopt Layer 2 Ethernet Switching Over DWDM Networks Now
- A new network is emerging for delivering media-rich and bandwidth-hungry content, applications and services. Traditional SONET Synchronous Optical NETwork/SDH Synchronous Digital Hierarchy architectures, developed for the narrowband world of a generation ago, are overloaded. Such practices as stacking SONET/SDH rings to increase capacity are complex and costly, while Ethernet-over-SONET/SDH protocol...
- Tags: Layer 2, SONET, DWDM, Narrowband, Optical Networking, Fiber Optics, Networking, Telecommunications
- White papers 2006-11-08
- SDH Pocket Guide
- This pocket guide provides an introduction to synchronous digital hierarchy SDH technology. It includes information about the SDH market and the benefits of SDH over previous communications technologies. Most of the guide is devoted to describing SDH layers, components, and frame formats. Other topics include a comparison to SONET...
- Tags: SDH, Fiber Optics, Optical Networking, Telecommunications, Networking
- 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
- 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
- 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
- Synchronous Ethernet - A RAD White Paper
- As more and more traffic is being delivered in Ethernet format, carriers are realizing the advantages to converging on a pure Ethernet infrastructure, but are not able to do so with Ethernet as presently defined. New ITU-T Recommendations, such as Y.1731 for Ethernet OAM and G.8031 for Ethernet protection switching,...
- Tags: RAD, Ethernet, Network Technology, Networking
- White papers 2006-08-22
- 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
- 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
- OSI Layer-2 Encryption: Security goes one layer deeper
- Ethernet Layer 2 EncryptionI find it hard to believe this article firstly has no posts, and secondly doesn't recognise Senetas. Senetas is a pure Layer 2 vendor, who provides Layer 2 encryption hardware to SafeNet, nCipher and Thales.Senetas has Layer 2 encryptors for ATM, Sonet/SDH and Ethernet, ans all...
- Tags: Network technology, NETWORKING, OSI, security, andrew.younger@..., Senetas, Ethernet, Layer 2
- Discussion threads 2007-09-13
- Evolution of Ethernet for Data Transport Networks
- The Recent introduction of new revenue-generating services based on Ethernet has made more acute the need to improve Ethernet by adding features essential for efficient data transport. Various enhancements to the bridged Ethernet protocols in terms of scalability, OAM, restoration, QoS, and synchronization are being standardized that are making the...
- Tags: Network, Ethernet, Network Technology, Networking
- White papers 2005-09-01
- Multiservice Optical Networks for Cable MSOs
- This free Webinar will examine the key role optical communications systems will play in enabling the evolution of the MSO from a local video provider to a full-service network operator, capable of competing with local telcos on every front. Key topics will include Ethernet over Sonet/SDH for resilient transport of...
- Tags: Optical Network, Transport, Cable, Ethernet, Network Technology, Networking, Corporate Communications, Fiber Optics, Marketing, Telecommunications
- Webcasts
- Building High-End Ethernet Functionality Into SDH Networks
- For now, NG-SDH seems to have its roots firmly entrenched in Service Provider networks. Given the ubiquitous presence of SDH in the metro, incrementally offering high-end Ethernet services over this SDH network would be the best way of packetizing the metro. This approach ensures that the Service Provider can start...
- Tags: Network, Tejas Networks, Metro, Service Provider, SDH, Ethernet, Fiber Optics, Business Services, Optical Networking, Networking, Telecommunications
- White papers 2008-03-05
- RIC-155GE Connects IP DSLAM Infrastructure Transparently Over Dedicated Leased SDH Circuits
- Telefonica Deutschland is a German provider of integrated data and telecommunication solutions for business users. The company wanted to transport any Ethernet traffic transparently over conventional SDH lines. The challenge was to enable broadband services, including ADSL 2+, and multimedia services, such as Triple Play, on an advanced, Ethernet-based DSL...
- Tags: RAD Data Communications Ltd., IP, Telefonica, SDH, RIC-155GE, Telefonica Deutschland, Fiber Optics, Optical Networking, Ethernet, Network Technology, Networking, Telecommunications
- Case studies 2005-10-09
- SURPASS Carrier Ethernet: Focus on Ethernet Ring Protection (ERP)
- Ethernet Ring Protection ERP, part of the Siemens Advanced Ethernet Package, is a network protection mechanism that enables carriers to enjoy an SDH/SONET-like ring protection while leveraging the cost-effectiveness of Ethernet technology. ERP is interoperable with traditional Ethernet and MPLS protection mechanisms, even when other vendors' switches are part of...
- Tags: Carrier, Ethernet Ring Protection, Protection Mechanism, Ethernet Ring Protection Protection Mechanism, Ethernet, Network Technology, Networking
- White papers 2006-01-29
- The BEST Challenge for Next-Generation Ethernet Services
- Service providers are starting to offer next-generation E-Line (point-to-point) and E-LAN (multipoint-to-multipoint) Ethernet services over their existing SONET/SDH networks. While Ethernet typically is "Best-effort", these emerging services are expected to be "Carrier-class" with strict bandwidth guarantees. Consequently, spanning tree creation, critical to any Ethernet network is fundamentally changed; each tree...
- Tags: Lucent Technologies Inc., Alcatel, Service, Ethernet, Network Technology, Networking
- White papers
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