Layer 2, 3, and 4 switching • Layer 2, 3, and 4 switching • The Open Systems Interconnection (OSI) Reference Model provides a layered network design framework that establishes a standard so that devices from different vendors work together. • ...

The difference between unmanaged, managed, and Web-smart switches • The difference between unmanaged, managed, and Web-smart switches. • With regard to management options, the three primary classes of switches are unmanaged, managed, and Web s...

What is Digital Signage? • What is Digital Signage • The benefits are significant • Replacing traditional billboards, point-of-sale displays, and other static signage, digital signage has emerged as a great new way to catch the attention of an...

VPN considerations • Things to consider about VPN connections • Who’s setting it up? • You can buy and set up VPN equipment by yourself. But some service providers have introduced VPN solutions that guarantee certain levels of service. They bo...

A terminal server by any other name • A terminal server (sometimes called a serial server or a console server or a device server) is a hardware device that enables you to connect serial devices across a network. • Terminal servers acquired the...

Power Sum NEXT (PS-NEXT) • Power Sum NEXT (PS-NEXT) • Power Sum NEXT (PS-NEXT) is the sum of the total NEXT power copuled to a wire pair from all other adjacent pairs. NEXT (Near-end crosstalk) is the level of interference that occurs between ...

Serial ATA technology • Serial ATA technology. • Introduced in the mid 1980s, the Advanced Technology Attachment (ATA) interconnect soon became the industry-standard parallel input/output bus interface for connecting internal storage devices. ...