In another aspect of the invention, the retransmit server retransmits {HEAD ~ the missing packets} in {TAIL ~ bypass mode}, because multicast enabled servers in the network are experiencing congestion, the defect that likely caused the failure of the original multicast transmit of the packets 
In another aspect of the invention , the retransmit server retransmits { HEAD ~ the missing packets } in { TAIL ~ bypass mode } , because multicast enabled servers in the network are experiencing congestion , the defect that likely caused the failure of the original multicast transmit of the packets
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