May 2006

  • Minimize Windows security testing's impact on performance

    Testing security is a good thing, but if you're not careful you could adversely affect your Windows networks and systems. Contributor Kevin Beaver has extensive security testing experience and tell...

  • OpenNMS, an introduction: Affordable network management

    Open source expert Maria Winslow brings network managers up to speed about the free open source enterprise-grade network-management system OpenNMS.

  • Crash Course: Security patching and upgrades

    Keeping your network safe and secure is a never ending job. Just when you think your defenses can't get any better, a new worm hits the net or a flaw is detected in your hardware. That's where secu...

  • Virtualization, Cisco chop one network into many

    Philips Research Laboratories already had a pretty impressive network, but when the Netherlands-based firm had to partition it and give a host of other companies access, that's when things got inte...

  • 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.

  • Wireless networking (CWNA)

    Do you think you know a lot about wireless networking? Are you interested in taking the Certified Wireless Network Administrator (CWNA) exam? Test your knowledge with our 13-question quiz on wirele...

  • Get ready to automate

    After decades of hand-holding, networks are edging closer to becoming automated. While there are still obstacles to overcome, the benefits of enhancing the overall performance of your network throu...

  • Merging application management with network management

    This tip considers what is needed when merging applications management with the management of your network.

  • MOS: A love-hate relationship

    Defining an appropriate performance metric for a particular class of application is not simple but it is very important. Discover why we have a love-hate relationship with MOS.

  • 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.

  • Look before you leap: Assessing pre-deployment assessment

    Discover the key to effective pre-deployment planning.

  • 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...

  • Invisible traffic that steals bandwidth

    If you network is busy though you know it is empty you may be experiencing "phantom traffic." Here Loki Jorgeson takes the mystery out of of the sources of traffic-like behavior.

  • Circuits: Return of the living dead?

    It seems that the instant something is declared outdated, it is immediately recycled as the 'Next Big Thing.' The latest technology to rise from the dead is circuit-based networks. Learn more about...

  • Network intelligence for dumb applications, Part 1

    This article will help you grasp the concept of network intelligence and understand how 'awareness' reflects a critical step forward in network infrastructures. Loki Jorgenson describes two views o...

  • Network management in 3-D: Experience the terror

    Forget about the people in Plato's cave -- in network management, seeing is knowing. Loki Jorgenson explains why you don't have to rely on shadows and guesswork to tell how your network is performi...

  • Network intelligence for dumb applications, Part 2

    Part two of this two-part series introduced us to the concept of "network awareness" and "application awareness." In this column, Loki examines the indications of a trend towards a unified "intelli...

  • Fix before breaking

    The tried-and-true standard of TCP/IP isn't able to meet today's high performance demands and we must turn to new schemes for network transport. Here we look at some alternatives.

  • Checking for high-network utilization on a switched network

    Learn the general approaches means for checking for high-network utilization on switched networks.

  • Bandwidth scam: Sticky fingers at fault

    Throwing bandwidth at a network performance problem rarely solves anything. But why did we think it would? This column guides you to think 'outside the box.'