LOS ANGELES—This is the second installment of a contribution from Jim DeFilippis on SDI versus IP. For Part 1, see “Which Switch is Which?” The second tale-of-the-tape issue is delay or latency. There ...

I'm interested in learning more about TCP/IP. I don't want anything <I>too</I> technical but I'd like to learn about the various parts of a packet and how to read it. I'd also like to see packets ...

Adam is the author of the AdamtheAutomator.com blog, and works as a Microsoft systems administrator specializing in the Microsoft System Center suite and PowerShell automation. Microsoft Network ...

The wireless infrastructure is likely to remain a circuit-switched, time-division multiplexed technology for much of the next five to seven years. Even after the transition to third-generation (3G) ...

Capture packets from IP networks is a commonly used technique in many IT fields for monitoring and analysis the IP traffic flows exchanged over computer networks. The new infrastructures for high ...

The use of IP for audio and broadcast transport applications has gained increasing attention as the quality of service (QoS) of packet switched networks continually improves. The lure of reduced costs ...

A digital network technology that breaks up a message into smaller chunks (packets) for transmission. Unlike circuit switching in traditional telephone networks, which requires the establishment of a ...

In October 1998, Cisco announced that it was acquiring Selsius, a manufacturer of packet-based phone systems. That signaled the beginning of a new era in how we think about the use of our IP networks.

The vast majority of administrators go to great lengths to protect the files on their network. Typically, elaborate firewalls are used to keep outsiders away from file servers. The files residing on ...

We have a VPN configured through a Cisco ASA 5505. We are getting hammered by some IP addresses that appear to be located in China and would like to put a stop to this. I have a little bit of a ...