Getting a handle on the invisible part of your network—the protocols that are in use—can be of enormous value in helping you detect problems. So far, we've talked about the tangibles of your ...

Open communication protocolsModbus TCP/IP is an open industrial protocol based on standard Ethernet. Modbus provides connectivity to programmable automation controllers (PACs), PLCs, and legacy ...

Trying to understand every detail involved in creating an embedded product that communicates via Internet protocols can be a daunting task. These protocols were created for systems that generally have ...

SS7 has been the tried and true signaling mechanism for providing signaling in traditional PSTN networks. But, with voice-over-IP (VoIP) becoming a more important technology for carriers, carriers are ...

Knowledge of the structure of Internet Protocol (IP) packets is a fundamental part of understanding the Internet and how information moves from one point to another. The benefits of such knowledge ...

I like to think of the transport layer as the layer of the OSI Model that enables more interesting traffic. While we network engineers may love a lot of the simpler uses of the IP protocol and ...

Although the Internet of Things (IoT) introduces remarkable ways to collect, manage, and apply data, it's also a huge vector for cyberattacks. One of the biggest vulnerabilities lies in embedded ...

Ethernet is ubiquitous. As long as it is the protocol of choice in IT, and the cost of even industrially hardened Ethernet switches and I/O are low, Ethernet will remain the communication protocol of ...

The online economy, particularly e-business, entertainment, and collaboration, continues to dramatically and rapidly increase the amount of Internet traffic to and from enterprise servers. Most of ...