Prerequisites

Before you can configure PIM, you must prepare the switch as follows:


Step Action

1

Install the Advanced Routing software license.


Attention

If your Ethernet Routing Switch is running an Advanced License for a release prior to Release 6.0, to enable PIM you must regenerate your license file from the Nortel web site and install the new license file on the switch.

2

Configure IP addresses on the VLAN interfaces on which you want to configure PIM.

3

Enable a unicast protocol, either RIP or OSPF, globally and on the interfaces on which you want to configure PIM.


Attention

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 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).


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