This chapter focuses on networking devices. Familiarity with networking hardware devices is essential for understanding how a local area or a wide area network operates. This chapter covers the following aspects of network component functionality:
• Network interface cards (NICs)
• Switching and routing devices
• Wireless switching and routing devices
We start this chapter with discussion on the architecture of a network interface card (NIC). A NIC physically interfaces a networking device with its outside world such as a link that connects it to computer networks. We then proceed to the next topic of routing and switching devices by illustrating the block diagram setting for routing ...