| 摘要 |
The invention relates to a method of performing multicast admission control in a communications network (1'), comprising the steps of: a) receiving, at a first node (1-1) of the communications network (1'), a request (6) for a multicast channel (4b) from a host system (5b) communicatively coupled to the first node (1-1); b) sending, by the first node (1-1), a request (6) for the multicast channel (4b) to a central admission controller (7) of the communications network (1'), the sending of the request (6) being triggered by receiving the request (6) from the host system (5b); c) determining, by the central admission controller (7), if sufficient resources exist on nodes (1-1 to 3-1) and interconnecting links (1.1 to 3.1, T2) of the communications network (1') to provide the requested multicast channel (4b) from a source (3) to the host system (5b); and d) in case that sufficient resources exist, installing on the nodes (1-1 to 3-1) having sufficient resources to provide the requested multicast channel (4b) to the host system (5b), a replication rule for the multicast channel (4b). The invention further relates to a central admission controller (7) and to a communications network (1'). |
