Routing Technologies and Bandwidth Management
In this sample chapter from CompTIA Network+ N10-008 Cert Guide, you will explore a variety of approaches for performing routing, including dynamic routing, static routing, and default routing. The chapter also breaks down the various categories of routing protocols and provides specific examples of each.
This chapter covers the following topics related to Objective 2.2 (Compare and contrast routing technologies and bandwidth management concepts) of the CompTIA Network+ N10-008 certification exam:
Routing Information Protocol (RIP)
Open Shortest Path First (OSPF)
Enhanced Interior Gateway Routing Protocol (EIGRP)
Border Gateway Protocol (BGP)
Link state vs. distance vector vs. hybrid
Exterior vs. interior
Time to live
Quality of service (QoS)
In Chapter 4, “IP Addressing,” you learned how Internet Protocol (IP) networks can be divided into subnets. Each subnet is its own broadcast domain, and the device that separates broadcast domains is a router (which this text considers synonymous with a multilayer switch). A multilayer switch is a network device that can perform the Layer 2 switching of frames as well as the Layer 3 routing of IP packets. Multilayer switches generally use dedicated chips to perform these functions and, as a result, may be faster than traditional routers in forwarding packets.
For traffic to flow between subnets, the traffic has to be routed; this routing is a router’s primary job. This chapter discusses how routing occurs and introduces a variety of approaches for performing routing, including dynamic routing, static routing, and default routing. The chapter also breaks down the various categories of routing protocols and provides specific examples of each.
The chapter concludes with a discussion of various bandwidth management topics, including a discussion of QoS concepts, such as traffic shaping.