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  • DNS monitoring: If it's slow, everything is slow

    Techniques for monitoring DNS performance, and the impact on applications when it is not performing properly, are explored in this tip.  Tip

  • Network monitoring -- Best practices

    Network monitoring best practices are outlined by expert Loki Jorgenson.  Tip

  • baseboard management controller (BMC)

    A baseboard management controller (BMC) is a specialized service processor that monitors the physical state of a computer, network server or other hardware device using sensors and communicating with the system administrator through an independent co...  Definition

  • Why has the terminal server ended my connection?

    Find out reasons a terminal server might end a connection, in this Q&A with Chris Partsenidis.  Ask the Expert

  • CRC-4 (Cyclic Redundancy Check 4)

    CRC-4 (Cyclic Redundancy Check 4) is a form of cyclic redundancy checking (a method of checking for errors in transmitted data) that is used on E-1 trunk lines.  Definition

  • Network monitoring gets video game touch

    Network monitoring vendor NetQoS has created a tool that monitors the network using video game-like graphics and sounds to highlight problems on the network.  Article

  • BYE packet

    A BYE (or Goodbye) packet is a type of Real-Time Transport Control Protocol (RTCP) packet that is sent when a participant in a multicast event leaves the session.  Definition

  • sniffer

    In common industry usage, a sniffer (with lower case "s") is a program that monitors and analyzes network traffic, detecting bottlenecks and problems.  Definition

  • running disparity (RD)

    Running disparity (RD or rd) is the difference between the number of logic 1 bits and logic 0 bits between the start of a data sequence and a particular instant in time during its transmission.  Definition

  • FCAPS (fault-management, configuration, accounting, performance, and security)

    FCAPS (fault-management, configuration, accounting, performance, and security) is an acronym for a categorical model of the working objectives of network management.  Definition

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