Patent ID: 7454484

Claim:
A method of producing a multicast tree by a network management application configured to use a first multicast routing protocol, from existing protocol independent multicast routing information in a network, at least some of the protocol independent multicast routing information having been created from multicast information associated with an application configured to use a second multicast routing protocol, the network including a plurality of network devices including at least a plurality of routers that are members of a multicast associated with the multicast tree, a set of the routers each including a management information base containing protocol independent multicast routing information, the method comprising the steps of: accessing, by the network management application, a plurality of the management information bases containing the protocol independent multicast databases; retrieving, by the network management application, at least a portion of the existing protocol independent multicast routing information from each accessed management information bases; and tracing, by the network management application, the retrieved existing protocol independent multicast routing information to form a representation of the multicast tree in the network management application.