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  • What makes a WAN different from a LAN and MAN?

    Learn the basics of networking in this expert explanation of the differences between WANs, LANs and MANs -- how they connect and which protocols they use.  Ask the Expert

  • How do I increase network signal strength over a large distance?

    Learn how to establish a wireless network over a large area by incorporating access points or antennas in this expert response from Lisa Phifer.  Ask the Expert

  • Virtual machines present dynamic environment issues for network pros

    Virtual machines (VMs) routinely move between servers and can move across subnets, and virtualization blurs the line between the network and the server. These dynamic environment issues can challenge network professionals. In this tip, learn more abo...  Tip

  • Network architecture and capacity planning for server virtualization

    Server virtualization not only challenges network managers with consolidation and latency considerations, it also places a heavier burden on the network infrastructure going into each physical server. When a company reduces the number of physical ser...  Tip

  • Limit network energy consumption with computer cooling technologies

    The more heat generated by a piece of equipment, the more electricity is being wasted. For many networks, as in the data center, reducing the amount of heat generated, and therefore the amount of electricity wasted, can lead to significant monetary s...  Tip

  • What is a logical network? How do you improve one?

    Learn what logical and physical networks are and how to improve them, in this expert response with networking fundamentals expert, Chris Partsenidis.  Ask the Expert

  • Distributed antenna system streamlines wireless management

    Distributed antenna systems can help simplify wireless deployments, particularly for those charged with managing multiple systems.  Article

  • How to route L3 switches for a serial LAN design

    Learn from our routing and switching expert how to configure a Layer 3 switch in a serial LAN design to route from the interface to the last machine, in this Ask the Expert Q&A.  Ask the Expert

  • Virtualization and the network a hot topic at Interop

    Virtualization is a hot topic among server guys and data center managers who are looking to reduce hardware spending and power consumption and to increase flexibility and agility in the data center. But this hot technology poses challenges to enterpr...  Interop Las Vegas 2008 ex

  • 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

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