VP CAPACITY CHANGING SYSTEM FOR ATM SWITCHING NETWORK

摘要

PURPOSE: To realize the quick reaction of VP capacity changing control. CONSTITUTION: A repeating node 2 repeating plural VPs is provided with a connecting function part 30, an OAM cell copying part 41, the possibility of VP capacity change judging part 42 and a returning part 43. The connection function part 30 transfer-processes an OAM cell received from an upstream node to a down stream node. The OAM cell copying part 41 copies the OAM cell in parallel with the processing of the connecting function part 30. The possibility of VP capacity change judging part 42 extracts a control message from the OAM cell copied by the OAM cell copying part 41 to judge the possibility of changing the capacity. A returning part 43 transmits the juging result of the possibility of VP capacitor change judging part 42 to a transmission terminal node 1. A capacity change control part 11 in the transmission terminal node 1 judges the capacity change of VP from the transmission terminal node 1 to a terminating node 3 to be possible when the judging result from the repeating node 2 may image.