| 摘要 |
An electronic communication network supports delivery of video program Internet protocol packets and includes a source device, a first recipient device, and a second recipient device. The source device transmits both first and second video program Internet protocol packets. The first recipient device is assigned as positive acknowledgment leader by the source device and the second recipient device that is assigned as negative acknowledgement leader by the source device. The first recipient device is operable to transmit to the source device a positive acknowledgment of receipt of the first video program Internet protocol packet. The second recipient device is operable to transmit to the source device a negative acknowledgment of non-receipt upon not receiving the first video program Internet protocol packet. The source device responds to the negative acknowledgement of non-receipt by the second recipient device by multicast resending the second video program Internet protocol packet to both the first and second recipient devices.
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