BROCADE IP PRIMER

Chapter 11: Open Shortest Path First (OSPF)9. Which OSPF show command will tell you the states of your neighboringrouters?a. show ip ospf databaseb. show ip ospf routec. show ip ospf borderd. show ip ospf neighbor10. An ABR is:a. A router that participates in more than one routing protocolb. A router with interfaces participating in more than one areac. A router with the highest priorityd. A router with the highest Router IDAnswers to Review Questions1. b. The router with the highest Router ID becomes DR; the second highestRouter ID becomes BDR. The Router ID is either the IP address of the lowestloopback interface, or the IP address of the lowest physical interface(if no loopback is configured).2. d. It will not receive any of these (other than a default gateway).3. a. You can change this, but by default, it is 100 divided by the maximumbandwidth in Mbps.4. b. Area 0 is the Backbone. Area 51 is for those wishing to amusethemselves.5. c. By default, Hello packets are sent every 10 seconds.6. a. The last three neighbor states constitute the Adjacency Process.Answer C describes the Neighboring Process.7. c. An NSSA may receive external routes from an ASBR in its own area, butit will not receive external routes advertised from the backbone (thus havingoriginated from an ASBR other than the one in its own area).8. a. An Autonomous System Boundary Router is a router participating inmore than one Autonomous System (AS or routing protocol).9. d. show ip ospf neighbor or show ip ospf interface will give you thisinformation.10. b. An Area Border Router is a router that participates in more than oneOSPF area.260 Brocade IP Primer