Lab 162 - Anycast RP

Prerequisites: CCNP level skills.

Topology

Pic. 1 - Topology Diagram.

Note!
Routers and switches are already configured as per the topology diagram. All devices use OSPF area 0 as their routing protocol as well as multicast routing. Also, IP PIM Sparse-Mode on VLANs 133 and 143 is enabled.

Task 1

Configure R3 and R4 as RPs for all multicast groups. Ensure that clients choose the closest RP while joining multicast groups (lowest OSPF metric). In case of failure of the closest RP they must be able to use the other one. You are allowed to create extra loopback interface with IP address: 172.16.34.34/32.

Solution

Task 1
Configure R3 and R4 as RPs for all multicast groups. Ensure that clients choose the closest RP while joining multicast groups (lowest OSPF metric). In case of failure of the closest RP they must be able to use the other one. You are allowed to create extra loopback interface with IP address: 172.16.34.34/32.

R3 Configuration:

!

interface Loopback103
 ip address 172.16.103.1 255.255.255.255

 ip ospf 1 area 0

!

interface Loopback34
 ip address 172.16.34.34 255.255.255.255
 ip ospf 1 area 0
!

ip pim rp-address 172.16.34.34
ip msdp peer 172.16.104.1 connect-source Loopback103
ip msdp originator-id Loopback103

!

R4 Configuration:

!

interface Loopback104
 ip address 172.16.104.1 255.255.255.255

 ip ospf 1 area 0

!

interface Loopback34
 ip address 172.16.34.34 255.255.255.255
 ip ospf 1 area 0
!

ip pim rp-address 172.16.34.34
ip msdp peer 172.16.103.1 connect-source Loopback104
ip msdp originator-id Loopback104

!

S3 Configuration:

!

ip pim rp-address 172.16.34.34

!

Verification:

Pic. 2 - MSDP Peer Session.