Configuration Exercises

1:	What global Cisco IOS Software command is required to enable IP multicast routing? ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________
2:	Show the commands that enable PIM on an interface in dense mode, sparse mode, and sparse-dense mode. ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________
3:	Show the command to statically specify an RP with an address of 172.18.20.4. ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________
4:	Write the configuration statements necessary to statically map groups 239.1.2.3 and 228.1.8.0 through 228.1.8.255 to RP 192.168.15.5, and group 239.6.7.8 to RP 192.168.20.10. Map all other groups to RP 192.168.25.1. ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________
5:	All router interfaces shown in Figure 6-11 are running in sparse-dense mode. Show the relevant configurations in order for R1 to be the RP for only groups whose addresses begin with 226.13.0.0/24. R2 should only be the RP for groups whose addresses begin with 239.0.0.0/8. R3 is the mapping agent; ensure that the mapping agent will recognize only R1 and R2 as RPs, and only for the specified groups. All Auto-RP messages should have a TTL of 20. Figure 6-11. The Topology for Configuration Exercises 5 “8 ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________
6:	Given the configurations of Configuration Exercise 5, suppose a source originates traffic for group 228.23.14.135, and a member requests a join to that group. What will happen? ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________
7:	Again referring to Figure 6-11, write the necessary configurations to enable the bootstrap protocol, making R1 and R2 C-RPs for the same group addresses described in Configuration Exercise 5. Make R3 the BSR, and make R4 a backup BSR. ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________
8:	Write configurations for the topology in Figure 6-11 that allow multicast load balancing between source 172.16.1.75 and group member 172.16.2.100. Use unnumbered addressing on the tunnel interfaces, referencing E0, and assume the IGP is advertising those addresses. ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________
9:	Examine the configurations of Homburg and Porkpie shown in the case study "Multicast Load Sharing." Each router is running OSPF in passive mode on the tunnel interfaces. Why? ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________
10:	What is the purpose of the command ip pim spt-threshold 100 group-list 25? ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________