Relay connection management program, relay connection management method, relay connection management apparatus and recording medium which stores relay connection management program

摘要

A relay system stores destination information of both end systems for which communications are relayed, the sequence number of the one of the end systems is connected with a high quality transmission path, an ACK response number, a re-transmission count, etc. in a connection management table. Upon receiving a re-transmitted packet from the one of end systems, the relay system searches for the connection management table containing a matching sequence number, and increments the re-transmission count in the table by 1. If the re-transmission count has not reached a certain number, the relay system relays the re-transmitted packet as it is to the other end system.