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 ...

Cisco Discovery Protocol (CDP) is a link layer discovery protocol that has been integrated into Cisco switches and routers ever since I can remember. Cisco introduced CDP support into their routers ...

Network layer routing protocols provide the communication protocols and algorithms for determining routes to every destination and also for distributing the routing information throughout the network.

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 ...

Fundamentals: Five ways to secure your Cisco routers and switches Your email has been sent David Davis describes the fundamentals of router security through a list of his top five best practices. He ...

This was a challenge we were given in my CCNP class tonight. The instructor did not realize how complicated this actually is since he did not do it himself. Took me about 2 hours to solve it.