CHAPTER 33. Routing Protocols

SOME OF THE MAIN TOPICS IN THIS CHAPTER ARE

Basic Types of Routing Protocols 636

Multi-Protocol Label Switching (MPLS) 643

Routers are devices that examine Network layer protocol addresses and make decisions based on those addresses on how best to send a network packet on its way to its destination. Routers can be used in a corporate network to interconnect various LAN segments, to connect to a wide area network (WAN)—for connecting branch offices to the headquarters, other companies or business units for example—or, more commonly, to connect a local network to the Internet.

image Routers also play an important part in ...

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