| 摘要 |
<p>PURPOSE:To facilitate the selection of a relay line having high confidentiality to information by adopting a random selection means using a random number for the selection of the relay line in a relay line selection system of a packet exchange. CONSTITUTION:When a packet exchange sends a data to other packet exchange, the data is inputted to a relay line selection input means 10, where it is in the state of processing standby. Then the data is inputted to a relay line selection means 12 and a request of relay line selection is given to a random selection means 21. The means 21 decides a relay line to be selected by using a random number from a random number generating means 20 and a processing table of a fixed bypass circuit selection and decision means 11. Suppose that a relay line 2a, then the relay line 2a selected by the preceding processing references an area storing the information to discriminate a faulty state, and when no fault exists, the data is sent to a destination packet exchange through a relay line output means 15a, a memory 16a and the relay line 2a.</p> |
