NAC • Network Access Control (NAC) is a method of ensuring that only known devices are allowed to connect to your network and that they meet your network’s requirements before they are granted access. • This is NAC at its most basic level. How...

ServSwitch over IP solutions. • ServSwitch Wizard IP • Remote acces • For remotely accessing and controlling servers, many administrators use remote access software. But is it enough? After all, it's operating system dependent and doesn't work...

Remote Management • Remote Management • Inconvenience. • "It's late on Sunday evening and you're about to settle down to watch the big film when you receive a message that the system has gone down". It's a common style of catch line for vendor...

Common display configurations • Common display configurations • Individual video screens • The most common digital signage application is individual video screens displaying information. Often multiple screens in various locations are networke...

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...

Fibre Channel Technology • Fibre Channel Technology • What is Fibre Channel? • Fibre Channel is a set of communication standards designed to provide high-speed data transfer over a duplex, serial interface. It’s an open standard that supports ...

Category 5 and 5e • Category 5 and 5e • Category 5 • Category 5 (CAT5) cabling is good, solid cable for 100-Mbps LANs. The Category 5 standard has been around since 1991, so it’s well established. You’ll find existing Category 5 installati...

OM3 and OM4 • OM3 and OM4 • There are different categories of graded-index multimode fiber optic cable. The ISO/IEC 11801 Ed 2.1:2009 standard specifies categories OM1, OM2, and OM3. The TIA/EIA recognizes OM1, OM2, OM3, and OM4. The TIA/EIA r...