FRAME TRANSFER PREFERENTIAL PROCESSOR

摘要

PROBLEM TO BE SOLVED: To shorten delay time between terminals with high efficiency by processing a transferred frame of a logical path prior to that of another logical path when the real delay time of the former transferred frame becomes larger. SOLUTION: A frame transfer preferential processor is applied to the node 2 of a frame relay network where the plural nodes 2 storing plural terminals 1a-1d by a physical line and the frame is transferred through the plural logical paths 3a and 3b which are fixedly set so as to make communication among the terminals. A real delay time measuring means 4 measures real delay time being time which is actually required for the transfer of the frame from the terminals 1a and 1b to the node 2 on the logical paths 3a and 3b. The permission delay time permitted for the transfer of the frame is previously stored in a permission delay time storage means 5 on the logical paths 3a and 3b. A transfer processing means 6 preferentially transfers the frame where real delay time is larger than permitted delay time compared to a frame where real delay time is judged to be smaller than permitted delay time.