EVENT DRIVEN FILTER MONITORING FOR IP MULTICAST SERVICES

摘要

Event driven methods for implementing or removing a filter (104) used in receiving a multicast transmission are disclosed. An exemplary method for implementing a filter (104) includes: detecting a message, such as an 1Pv6 MLD message, wherein the message comprises an address of a multicast group and a request to join the multicast group to receive a multicast transmission. in response to detecting the message, determining a filter parameter (104) (e.g., a PID number and/or MAC address) needed to receive the multicast transmission, and implementing the determining a filter parameter (104) to receive the multicast transmission. Alternative methods wherein filter implementation or removal (104) is based on the detection of direct procedure calls, such as a Setsockopt call, are also disclosed.