Patent ID: 8086716
Filing Date: 2011-12-27
Classification: H04L

Abstract:
1. A host situated in a data network system and using a host-router multicast routing protocol based on IGMP (Internet Group Management Protocol) or MLD (Multicast Listener Discovery) protocol to communicate with a multicast router or proxy that is situated between the host and sources that send multicast packets to at least one multicast group address, the host having a network interface and one or more computer implemented applications that request data from the multicast group address and the sources, the host storing for the network interface and the multicast group address only one first INCLUDE source record containing information about include source lists derived by data requests made by the one or more computer implemented applications and only one first EXCLUDE source record containing information about exclude source lists derived by the data requests made by the one or more computer implemented applications, the first INCLUDE source record containing a union of all the source lists requested from the computer implemented applications and the first EXCLUDE source record containing an intersection of all the exclude source lists requested from the computer implemented applications.