So I'm trying to hook an old EF Data (so old, it doesn't even have the Comtech brand!) SLM 3650 satellite modem to a Cisco 2811 with radically no level of success. Getting kinda frustrated, because ...

Are two routers enough for practicing CCNA skills in your home lab? Maybe, maybe not. But you can practice a surprising number of CCNA-level router tasks with a two-router lab using the topology ...

I’ve spent at least 25% of the space in this blog over the years to a discussion of what used lab gear you might want to get so that you can practice the commands you will see on various Cisco exams.

What you usually want is a "serial console switch", which is a small computer with one or two ethernet ports and lots of serial ports. These serial ports are usually presented as RJ45 connectors. Make ...

It would be fair to say that the Internet as we know it runs on Cisco hardware. While you might never see the devices first-hand, there’s an excellent chance that every web-bound packet leaving your ...

Cisco routers use buffers as blocks of memory to handle data during the network routing process. As data flows through a network, different rates of transmission occur between routers and network ...