MULTICAST PACKET COUNT DEVICE, METHOD AND PROGRAM

PROBLEM TO BE SOLVED: To enable measured-rate charging of multicast according to a network use quantity with unitary management of a processing load and measured-rate charging data.SOLUTION: A device disposed on the content distribution provider network side includes: means for receiving a multicast packet distributed from a content distribution provider device; means for receiving a viewing request and a withdrawal request through an edge router; multicast viewing user registration means for registering user information included in the acquired viewing request into storage means, to notify the viewing request and the withdrawal request; and means for measuring received multicast packets and measuring a byte amount and a packet amount of the multicast packets from the viewing request to the withdrawal request acquired from the multicast viewing user registration means for each user, to store into the storage means.