| 摘要 |
Measures, including methods, systems and computer programs, for use in processing multicast group membership discovery protocol messages in a data centre network 200 including a plurality of compute servers 202, 212, 222, 232, 242. Each compute server in the plurality is capable of running one or more virtual machines. At a multicast group membership discovery protocol proxy 202C, 212C, 222C, 232C, 242C located on a compute server in the plurality, a multicast group membership discovery protocol report message is received 250 requesting delivery of data associated with a specified multicast group from a specified multicast data source. It is determined whether the specified multicast data source is hosted by a virtual machine running on the compute server. In response to a positive determination, a request corresponding to the received multicast group membership discovery protocol report message is forwarded 260 to the virtual machine hosting the specified multicast data source on the compute server. Multicast group membership discovery protocols such as the internet group management protocol (IGMP) or the multicast listener discovery (MLD) protocol are designed for internet protocol (IP) networks where potentially there are a large number of subscribers on the same local area network (LAN). |
