Fig. 1: Software-defined networking environment To appreciate how SDN functions let’s first review the operation of a traditional layer 3 packet switch. A newly installed switch looks at its connected ...

Need a jump start on Unix networking? Whether you're working on your home network or setting up systems at work, here are some basic Unix networking commands and insights that might prove helpful.

Confused by the alphabet soup of wireless-networking technologies? We'll tell you what you need to know.

This week, we’ll take at look at the signaling system used by the PSTN as we begin to highlight some of the security concerns about networks moving toward a converged infrastructure. Today, we ...