METHOD FOR DESIGNING BYPASS

摘要

PURPOSE:To design an optimum bypass in real time through high speed design processing by replacing plural active lines having different subscribers with a standby line so as to design the bypass so that an active path not replaced with the standby path is not in existence. CONSTITUTION:Suppose that a transmission line between nodes B and C is faulty in the network configuration as shown in figure, then let 10 active lines (a) be accommodated, five active lines (b) be accommodated and one active line (c) be accommodated respectively in a transmission line between the nodes B and C, then 1st bypass design is applied to each line group of the (a) to (c) in the unit of line groups. As a result, eight bypasses a' as A-E-F-C for the lines (a) are obtained, four bypasses b' as B-E-F-D for the lines (b) are obtained and one bypass c' as A-E-F-D is obtained as a relieved bypass design. Since standby lines between E and F are 10, 6 lines a', 3 lines b' and one line c' are obtained by proportional share to the number of the active lines.