EVENT DRIVEN FILTER MONITORING FOR IP MULTICAST SERVICES

摘要

Event driven methods for implementing or removing a filter used in receiving a multicast transmission are disclosed. An exemplary method for implementing a filter 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 (e.g., a PID number and/or MAC address) needed to receive the multicast transmission, and implementing the filter parameter to receive the multicast transmission. Alternative methods wherein filter implementation or removal is based on the detection of direct procedure calls, such as a Setsockopt call, are also disclosed.