• data link layer

    The Data-Link Layer is the protocol layer in a program that handles the moving of data in and out across a physical link in a network.

  • The answer to the top 5 virtualization problems

    Transitioning to a virtualized network can be challenging for network engineers, despite the advantages. Understand these top five virtualization problems and how to handle them.

  • vCloud and VEPA: Neither answer is a winner

    vCloud and VEPA fail to address the virtualization networking problem, as both are deemed proprietary and don’t enable networking functions within the vSphere environment.

  • When physical security breaches are the problem

    Network engineers are so busy dealing with intrusion prevention and firewalling that they forget about physical security breaches. Blogger Ethan Banks has some advice.

The OSI Model

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  • data link layer

    The Data-Link Layer is the protocol layer in a program that handles the moving of data in and out across a physical link in a network.  Definition

  • The answer to the top 5 virtualization problems

    Transitioning to a virtualized network can be challenging for network engineers, despite the advantages. Understand these top five virtualization problems and how to handle them.  Fast Packet

  • vCloud and VEPA: Neither answer is a winner

    vCloud and VEPA fail to address the virtualization networking problem, as both are deemed proprietary and don’t enable networking functions within the vSphere environment.  Fast Packet

  • When physical security breaches are the problem

    Network engineers are so busy dealing with intrusion prevention and firewalling that they forget about physical security breaches. Blogger Ethan Banks has some advice.  Fast Packet

  • Cisco upgrades the Catalyst 6500…but some wonder why

    The Cisco Catalyst 6500 upgrade announced this year didn't excite everyone as expected. Blogger Greg Ferro wonders why Cisco didn't stay focused on the Nexus line instead.  Fast Packet

  • Need 10 GbE optimization? Hardware is not the solution

    10 GbE brings speed, but network latency is still an issue. The answer to 10 GbE optimization can't be found in increasing hardware. Our blogger says it's about the application.  Fast Packet

  • Cius vs. the iPad: Why bother comparing?

    Cisco launched its Cius tablet this year, which focuses on enterprise apps, desktop virtualization and network management, but one blogger says he'd rather have an iPad.  Fast Packet

  • Can Virtual Extensible LAN solve the VLAN problem?

    The Virtual Extensible LAN (VXLAN) protocol could mean the ability to spin off many more VLANs across dispersed data centers. So why does blogger Ivan Pepelnjak take issue?  Fast Packet

  • OpenFlow controllers will only take shape if vendors play nice

    OpenFlow controllers can result in a new level of granular network management and network virtualization on top of commodity hardware, but vendors will have to step out of the way.  Fast Packet

  • Network fabrics may not be the end-all

    Feature-rich network fabrics have been all the rage, but one blogger says the technology is only for creating more bandwidth. Other features should be left to edge software.  Fast Packet

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