Joel is an internationally recognized expert in the areas of security, networking and messaging. Follow him on X (formerly Twitter) @joelsnyder. Building enterprise networks with routers and switches ...

The possibility of using IP-based networks could greatly reduce the energy and costs associated with wireless IoT communication, which would otherwise need expensive mobile-tower connectivity and ...

We received this question from a student at a recent Profinet One-Day Training Class. I found it particularly prescient given the latest discussions going on around Industry 4.0. The question is ...

Network protocols are formal standards and policies consisting of rules, procedures, and formats that define how data is exchanged over networks. They ensure that devices can communicate effectively, ...

I explained in the previous post how the RSVP-TE Explicit Route Object (ERO) specifies the path of an MPLS LSP by means of a sequenced list of Label Switching Routers (LSRs) that the LSP must pass ...

Thread is a simplified, IPv6-based mesh networking protocol developed for connecting products around the home to each other, to the internet, and to the cloud. Thread is simple to install, highly ...

As an incident that we reported on last week shows, the Internet routing system isn't as secure as we want it to be. But how bad is it really? Let's start with a very short introduction into Internet ...

Network Engineers are always looking for new ways to gain some low-cost network testing capabilities. Few companies sufficiently fund networking labs for their networking teams to learn on prior to ...

So at work we have about 25 nodes, split about evenly between workstations and printers. Last year we bought a Trendnet router to try to rid our network of stability problems. Previously we'd been ...

The Domain Name Service is what I call a “dense” protocol. I call it dense because there is so much to DNS that it has resulted in many books being written solely on DNS, what it is, and what it does.