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 ...

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 ...

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 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) ...

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 ...

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 ...

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.

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 ...

The communications technology of the public Internet, local area networks (LANs) and most wide area networks (WANs). The Internet Protocol (IP) is part of the TCP/IP protocol suite, and the terms "IP ...