The following section contains procedures for configuring PIM-SM and PIM-SSM.
Before you can configure PIM, you must prepare the switch as follows:
Install the Advanced Routing software license.
Enable routing globally.
Configure IP addresses and enable routing on the VLAN interfaces on which you want to configure PIM-SM.
Enable a unicast protocol, either RIP or OSPF, globally and on the interfaces on which you want to configure PIM.
PIM requires a unicast protocol to multicast traffic within the network when performing the Reverse Path Forwarding (RPF) check. PIM also uses the information from the unicast routing table to create and maintain the shared and shortest path multicast tree. The unicast routing table must contain a route to every multicast source in the network, as well as routes to PIM entities such as the rendezvous points (RP) and bootstrap router (BSR).
Use the following procedure to configure PIM-SM.
Enable PIM globally.
(If desired, modify the default global PIM properties.)
Enable PIM on individual VLAN interfaces.
(If desired, modify the default VLAN PIM properties.)
For PIM-SM, configure candidate RPs for the multicast groups in the network. (It is best to have multiple candidate-RPs in the network; however, with the Ethernet Routing Switch 5000, you can only configure one candidate-RP per switch for any number of groups.)
OR
Configure one (or several) static RPs for the multicast groups in the network. (To enable static RP in the PIM-SM domain, you must configure the same static RPs on every system that takes part in PIM forwarding.)
For PIM-SM, configure one or several candidate BSRs to propagate RP information to all switches in the network. You can configure every PIM-enabled VLAN as a C-BSR. (If Static RP is enabled, this step is not required.)