TRAFFIC ENGINEERING MULTICAST DISTRIBUTION METHOD, SYSTEM, NODES, AND PROGRAM

摘要

PROBLEM TO BE SOLVED: To set a path for transmitting band information for a user to view a content in a communication network, and for securing a band by the transmitted band information in the communication network, and for making contents with an identical content ID in the same route.

SOLUTION: In a node apparatus, a multicast tree setting request message including the content ID is transmitted when a multicast group participation message is received from a terminal device of the user. In the node apparatus connected to a content transmitting apparatus, a path calculation means for calculating such a path that a plurality of LSPs set for distribution may become identical paths, and a band security startup message including the calculated path and the band information is created and transmitted to a downstream node when the multicast tree setting request message is received.

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