What is the network layer? Located at Layer 3 of the Open Systems Interconnection (OSI) communications model, the primary function of the network layer is to move data into and through other networks.

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 ...

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 ...

Routing protocols have far-reaching effects on the performance and reliability of your network, but sorting out the differences between them can be a challenge. Choose the best one for your network by ...

BGP (Border Gateway Protocol) is the protocol that enables the internet's global routing system. It manages how packets get routed from network to network by exchanging routing and reachability ...

For years, the average network has been dominated by the Layer 2 switch. Now as network complexity increases and applications demand greater functions from the network, Layer 3 switches are coming out ...

For high-volume applications where speed, stable connectivity, and access to multiple IP addresses matter, datacenter proxies ...

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 ...

Routing got the early lead on switching thanks to Cisco, then the two technologies melded and evolved. It was the debate that separated Cisco from the pack and forever changed the enterprise network ...