METHOD, SYSTEM AND MULTICAST NETWORK FOR IMPROVING MULTICAST RELIABILITY

摘要

A method, a system and a multicast network for improving multicast reliability in the multicast technology field are provided. The method includes that an intermediate node receives a retransmission window notification message sent by the first upstream node, updates the retransmission window notification message and sends the updated retransmission window notification message to a downstream node of the intermediate node. The first upstream node is the upstream node of the intermediate node. The system includes a receiving module and an update module. The multicast network includes the first upstream node, the intermediate node and the downstream node of the intermediate node. Updating retransmission window notification message enables receiver sides to know more retransmission data that can be provided. Consequently multicast reliability is improved.