We have recently spoken about IP routing, but there is something else that needs our attention, and it is all about the types of routes found in a routers routing table. It might sound confusing but ...

In a VPLS service, customers don’t peer routing protocols with the carrier, but directly between their own routers over the Layer-2 multi-access VPLS network. This is just like any Ethernet LAN you ...

I love new security testing tools. There is nothing quite like finding some magical bits of code allowing you to use and abuse protocols in unique and unnatural ways. I was introduced to Loki at ...

From the network layer’s routing magic to the shift toward IPv6 and the nuances of physical versus logical topologies, understanding these concepts is key to building robust systems. As IPv6 adoption ...

Welcome! Throughout this course, Network Systems Foundations, you will delve into the fundamental layers of network communication. You will start with a thorough discussion of the Link Layer and its ...

We have now met the archenemy of networks, Mr. Murphy, as he cackles “What can go wrong, will,” in the introduction to failure modes and the discussion of failure modes at the physical and data link ...