This chapter is from the book
This chapter is from the book
This chapter is from the book
Summary
Here are the main topics covered in this chapter:
This chapter discusses how routers forward traffic through a network based on source and destination IP addresses.
This chapter also covers the sources of route information used to populate a router’s routing table. These sources include directly connected routes, statically configured routes, and dynamically learned routes.
This chapter distinguishes between routed protocols (for example, IP) and routing protocols (such as OSPF or EIGRP).
Some routing sources are more trustworthy than other routing sources, based on their administrative distances.
Different routing protocols use different metrics to select the best route in the presence of multiple routes.
This chapter distinguishes between IGPs (which run within an autonomous system) and EGPs (which run between autonomous systems).
This chapter contrasts the behavior of distance-vector and link-state routing protocols and shows how split horizon and poison reverse can prevent routing loops in a distance-vector routing protocol environment.
This chapter describes today’s most popular routing protocols (including RIP, OSPF, IS-IS, EIGRP, and BGP), along with their characteristics.
This chapter reviews various QoS technologies, with an emphasis on traffic shaping, which can limit the rate of data transmission on a WAN link to the CIR.