Determination of a Time To Live ("TTL") hop count for repair data units transmitted from a repair head to a standard destination device in a communications network is facilitated for multicast transmission. The repair head destination device monitors the path between the repair head destination device...http://www.google.de/patents/US6104695?utm_source=gb-gplus-sharePatent US6104695 - Repair TTL computation and correction mechanism to perform localized repairs in a multicast data distribution setup/framework
