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  • Binary-to-decimal conversion

    Binary to decimal conversion is explained in this tip on how a network device uses its IP address, subnet mask and default gateway information.  Tip

  • Making the triple play

    Triple play is the hype – and yet there is a serious advantage to be gained that is more than just voice and video mixed with data.  Tip

  • Network retardation: Will IP networks ever grow up?

    Networks and the systems that support them are slow maturing and the heavy lifting and regular maintenance of networks must be attended by humans. The consequence is that networks are slow to adapt, difficult to manage, and do not scale easily. When ...  Tip

  • What is the advantage of SFP ports on a Gigabit switch?

    Our routing and switching expert explains the benefits of SFPs on a Gigabit switch. SFP stands for "small form-factor pluggable" and is a hot-swappable input/output device that plugs into a switch port, allowing multiple options for connectivity.  Ask the Expert

  • Words to Go: VoIP

    This handy, printable glossary will assist you with terminology related specifically to voice over IP.  Article

  • Troubleshooting switching: Overcome function overlap confusion

    Switches can perform many very distinct functions, most of which have nothing to do with the academic definition of "switching." In order to troubleshoot your environment with a minimum of effort, you need to understand these functions -- how they wo...  Tip

  • Router Expert: DHCP services for WLANs

    Learn how to configure Dynamic Host Configuration Protocol (DHCP) services as part of a WLAN implementation.  Tip

  • Why can't our wireless NIC get an IP address?

    Wireless association followed by DHCP failure is not uncommon. Learn why your wireless NIC is unable to get an IP address from an access point (AP) that it can see and detect a signal from, in this Ask the Expert answer.  Ask the Expert

  • Troubleshooting routing: Strategies for fast problem solving

    Network troubleshooting can be challenging for a number of reasons, not the least of which is the lack of a standard methodology. In this tip, Tom Lancaster looks at some of the best and fastest ways to find out where your problem lies.  Tip

  • The QoS scam: Paying for reduced bandwidth

    On an unhealthy or broken network, quality of service (QoS) is a rudder on a sinking boat -- it fixes nothing and cannot resolve degradation issues. On a healthy, well-provisioned network, QoS is not needed -- all applications receive sufficient reso...  Tip

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