Network Design

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  • VoWLAN: Preparing your network for a voice over wireless LAN deployment

    If you are considering a voice over wireless LAN (VoWLAN) deployment, you must plan ahead to ensure the high call quality your users expect. In this tip, David Jacobs explains the three steps to a successful VoWLAN deployment: Analysis of the radio f... 

  • Duplex mismatch

    What is duplex, and what is the difference between half and full duplex? What is a duplex mismatch? How can autonegotiation help or hurt your network? How can you resolve duplex conflicts? In this tip, David Davis helps networking engineers and newco... 

  • Managing remotely hosted servers: Remote disaster recovery and prevention

    This tip discusses the two most basic ways you can recover from, and fend off, disasters that can overtake a remotely-hosted system: backup and redundancy. 

  • Planning Network Load Balancing clusters

    Servers that use Windows Network Load Balancing can benefit from optimization. Servers should be optimized for their role, the types of applications they will run, and the anticipated local storage they will use. 

  • WAN acceleration: Enabling successful disaster recovery

    Data replication and backup can be difficult to accomplish reliably because a large amount of information is sent across low bandwidth/high latency links. WAN acceleration can be an essential tool for overcoming these challenges. Learn how technologi... 

  • Breaking out of the data center

    This article examines the trend among enterprises to have greater volumes of data residing outside their traditional data centers and in frontline environments. It discusses how enterprises are accomplishing this, including an overview of databases f... 

  • Look before you leap: Assessing pre-deployment assessment

    Discover the key to effective pre-deployment planning. 

  • 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    It seems that the instant something is declared outdated, it is immediately recycled as the 'Next Big Thing.'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 the latest incarnation… 

  • Designing a DMZ and using iptables

    Our editors posted a question on ITKnowledge Exchange to help out "Ruhi" plan for a DMZ using iptables, and fellow techies jumped in to help out, providing excellent advice for DMZ design. 

  • IP network design, part 4: LAN design

    This final section of the IP network design series relates to the issues encountered with campus LAN design. The benefits of Ethernet switching over a traditional hub environment are first explained. The motivation behind the deployment of virtual LA...