The network is the fundamental backdrop of your IT operations infrastructure, allowing data to transverse between users, data storage, and data processing. Routers, switches, and firewalls work together to enable data transfer while protecting networks, data, and end users. This chapter discusses how to review these critical pieces of your infrastructure while helping you to do the following:
• Unravel the complexity of network equipment.
• Understand critical network controls.
• Review specific controls for routers, switches, and firewalls.
Routers, switches, and firewalls join and protect our networks, but how did we end up with this interconnected network of devices?
It started ...