Section 8: Multicast (6 Points)

• Configure Multicast PIM Sparse-mode on VLAN_22 to allow Multicast traffic between R3, R5, and R6. Make R6 the rendezvous point.

If you configured this correctly as shown in Example 4-43, you have scored 3 points.

• To better control the interval of PIM query messages, change the frequency of sending these messages to 1 minute.

If you configured this correctly as shown in Example 4-43, you have scored 3 points.

Example 4-43 shows the multicast configuration according to the question requirement regarding the PIM mode and the rendezvous point. The show commands tell you if the RP is found and if the neighborhood is made.

Example 4-43. R3, R5, and R6 Multicast Configuration

 R3#show run Building configuration... ! ! ip multicast-routing ! ! interface FastEthernet0/0  ip address 160.10.22.3 255.255.255.0  ip pim query-interval 60  ip pim sparse-mode ! ip pim rp-address 160.10.22.6 ! ! ________________________________________________________________ R5#show run Building configuration... ! ! ip multicast-routing ! ! interface FastEthernet0/0  ip address 160.10.22.5 255.255.255.0  ip pim query-interval 60  ip pim sparse-mode ! ! ip pim rp-address 160.10.22.6 ! ! ________________________________________________________________ R6#show run Building configuration... ! ! ip multicast-routing ! ! interface Ethernet0/0  ip address 160.10.22.6 255.255.255.0  ip pim query-interval 60  ip pim sparse-mode ! ! ! ________________________________________________________________ R3#show ip pim rp Group: 224.0.1.40, RP: 160.10.22.6, uptime 1d01h, expires never ! ! ________________________________________________________________ R5#show ip pim rp Group: 224.0.1.40, RP: 160.10.22.6, uptime 1d01h, expires never R5# ! ________________________________________________________________ R6#sh ip pim neighbor PIM Neighbor Table Neighbor          Interface                Uptime/Expires    Ver   DR Address                                                            Prio/Mode 160.10.22.5       Ethernet0/0              1d04h/00:03:14    v2    1 / S 160.10.22.3       Ethernet0/0              1d04h/00:03:26    v2    1 / S R6#