Figuring out the amount of bandwidth a video signal requires on an IP network isn’t terribly hard, but it does require some familiarity with the underlying technologies and packet formats. Getting the ...

Voice over IP (VoIP) is the descriptor for the technology used to carry digitised voice over an IP data network. VoIP requires two classes of protocols: a signaling protocol such as SIP, H.323 or MGCP ...

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 ...

Recently, a significant amount of time has been expended on the discussion of certain numbers. Topics have included 1Gb versus 10Gb, 4K versus 8K, single-frame times (16 or 33 milliseconds), and so ...

In Part 1 of this article, we talked about security issues related to sending and receiving IP packets and the function of IP Security, or IPSec. We also discussed different levels of security and ...

The purpose of the network layer is to help route messages between different local networks. Central to this layer is the concept of exclusive network addresses, where every terminal connected to the ...

Real-world communications over the Internet are becoming more and more widespread. In particular, commercial transactions, which deserve a high level of security, often take place over our ...