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Carrier Ethernet Ready for Prime Time: Five Things to Consider
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Recent announcements concerning carrier plans to deploy Ethernet in metro and core networks clearly indicate that Ethernet's familiar role in the enterprise LAN has evolved to encompass MAN and WAN applications. Today, virtually every office environment and many residences count on Ethernet networks to interconnect individual workstations and peripherals. What follows are five things to keep in mind as you consider a larger role for Ethernet in your network.
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Gigabit Monitoring -- Tap Aggregation, Regeneration and Filtering to enable Deep Packet Inspection (DPI) in Carrier IP Networks
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The weapon of choice for service-oriented network monitoring is Deep Packet Inspection (DPI), enabling providers to identify, classify or even selectively block IP traffic. For the technology to work, DPI must be able to unobtrusively acquire high-fidelity replica of production traffic from multiple sources across a triple redundant network. Recently, instead of using conventional network taps, the Data Access Network (DAN) has emerged as the"Best Practice" data access and network monitoring architecture for cost-effective DPI monitoring/
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Gigabit Monitoring – How-to Segregate and Load-Balance 10-Gig Traffic among 1-Gig Tools
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2007 will emerge as the year of 10 Gigabit. Yet one challenge remains. How to monitor mission-critical traffic at full line-rate in order to ensure network integrity, including performance, security and compliance. 10-Gig monitoring tools are not readily available and are like to be costly. A new breed of Data Access Switch is an alternative.
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Gigabit Monitoring -- Interop's SpyNet Enables Virtualization of Monitoring Tools
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Interop is a significant event for network engineers, in part because InteropNet is known as the state-of-the-art network for demonstrating new technology . To ensure that such business activities can take place, there is a secondary overlay network that is also built along with InteropNet -- SpyNet, which enables the total traffic aggregated from multiple switches or taps to be redistributed to a parallel array of collaborating monitoring tools.
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Building Next Gen Modular Communication Platforms with AdvancedTCA
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There is a fundamental change occurring in telecommunication platform designs that have been ushered in by development of open standards, modularity and an effort to reduce cost through an interoperable, plug and play kind of economics. This article provides an overview of some of the key changes in telecom platform designs and the effect these changes have on the industry.
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Capitalizing on the Evolution of Metro Nets: Understanding Multidimensional Ethernet
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For years, Ethernet supporters have predicted that Ethernet will become the dominant network technology and lead to a truly homogeneous network. Even as new standards have threatened to provide functionality beyond the scope of Ethernet, relentless innovation has led to the evolution of an Ethernet that can provide unparalleled scalability, reliability and Quality of Service (QoS) for next-generation Metro networks. The result, Multidimensional Ethernet, is a combination of MAC-in-MAC, Hierarchical QoS, Ethernet Cross-Connect, and Service Resiliency technologies that maintain Ethernet's ability to meet the specific functional needs of the rapidly growing business services market.
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Illicit Fiber Tapping of Ethernet WANs and the Advantages of Layer 2 Encryption
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While it runs counter to conventional wisdom, fiber can be tapped — even without breaking cable sheathing. When used illicitly, optical taps can provide unfettered access to data and voice communications passing over a fiber line. Implementing encryption at Layer 2 ensures security of the fiber optic transmission and makes the data virtually impossible to misappropriate by those with malicious intentions.
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