Method and system for measuring reception characteristics in a multicast data distribution group

摘要: A method and system for accurately measuring the reception characteristics of receivers in a multicast data distribution group having sending node plurality receivers. The is organized as repair tree which selected nodes comprise downstream Multicast packets transmitted by include retransmission count field addition to packet header information, session identifier, sequence number payload data. provides an indication times respective has been retransmitted response request. original counter each session. Each receiver increments upon receipt that not previously received. adds value contained received corresponds identified missing receiver. actual employed generate loss metric at measure characteristic particular