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  • IDSL

    IDSL is a system in which digital data is transmitted at 128 Kbps on a regular copper telephone line (twisted pair) from a user to a destination using digital (rather than analog or voice) transmission, bypassing the telephone company's central offic...  Definition

  • What are three vital pieces of criteria used to evaluate a network?

    Learn what to look for when evaluating a network, including common problems with architecture.  Ask the Expert

  • Keeping it green: Design principles for efficient network architectures

    Green networking often equates to making networks more efficient. Efficient network design combines improvements in consumption and consolidation to achieve increased manageability and lower lifecycle cost. In this tip, learn more about the specifics...  Tip

  • Craft a green IT action plan

    Many IT departments want to undertake green IT initiatives, but don't know where to start. Use this research note to begin understanding green IT as an umbrella term, the difference between victory projects, and leadership projects, and which require...  Research Report

  • How green is my network? -- A look at the cost-savings benefit of green IT

    The trend of green networking is an offshoot of the growing emphasis on greening, or decreasing the negative impact to the environment of just about everything -- including data centers and IT in general. Richard Ptak has written about green IT for S...  Tip

  • Optical Carrier levels (OCx)

    The Synchronous Optical Network (SONET) includes a set of signal rate multiples for transmitting digital signals on optical fiber.  Definition

  • Governance, compliance, security: How are these network problems?

    Issues of governance, compliance and security are becoming the responsibility of network operations staff because increasingly complex, componentized services are carried on the network. Network staff must cooperate with other teams to ensure good co...  Tip

  • Cisco re-thinks Layer 8 networking with green components

    Cisco Systems has re-written the rules of networking at the highest level, upgrading traditional Layer 8 technologies with higher-performing, greener counterparts, the company announced at a New York City event.  Article

  • Understanding VLAN implementation and IP address assignment

    Learn how to create and configure a VLAN in this response from a network administration expert  Ask the Expert

  • Green networking: Energy efficient upgrades can cut costs

    Upgrading older networking products to greener, more efficient equipment can cut costs, but administrators should take a close look at total savings from switching out energy hogs like gigabit Ethernet switches for new, greener models. A report by Sc...  Article

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