Chapter 3. Routing Protocols
The book so far has concentrated on getting the core equipment in the ISP backbone up to a state in which it can be introduced safely into the larger network and the Internet. This chapter introduces the major routing protocols and some of the most useful features in those routing protocols that are available for ISPs.
Most of this chapter’s content covers BGP, the Border Gateway Protocol used by ISP networks to pass routing information between each other. In fact, BGP has grown to be more than just a routing protocol used by network border routers—BGP is now the mechanism for transporting noninfrastructure prefixes and routing information around the ISP’s backbone. The first part of this chapter discusses initial setup ...
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