The following scenarios and questions are designed to draw together the content of the chapter and to exercise your understanding of the concepts. There is not necessarily a right answer. The thought process and practice in manipulating the concepts is the goal of this section. The answers to the scenario questions are found at the end of this chapter.
Scenario 6-1
In Figure 6-10, all routers share a common multiaccess segment. Because of the exchange of hello packets, one router is elected the DR and another is elected the BDR. Use Figure 6-10 to answer the following questions.
Figure 6-10. Network Diagram for Scenario 6-1
1:
Which parameter determines the router that will be selected as the DR in an OSPF network?
2:
Could a router with a priority value of zero assume the role of a DR or a BDR in the OSPF network shown in Figure 6-10?
3:
How is the OSPF router ID determined on a Cisco router?
4:
What is the role of the DR and BDR in the OSPF network shown in Figure 6-10?
