Patent ID: 7304998
Filing Date: 2007-12-04
Classification: H04J,H04L

Abstract:
1. A fixed length data processing apparatus for processing fixed length data for asynchronous communication comprising: a request generating unit being able to generate an execution request for a continuity test processing in order to confirm a continuity state in said asynchronous communication; and a continuity test processing unit for generating fixed length data for a continuity test when receiving said execution request from said request generating unit, transmitting and receiving said fixed length data to and from another fixed length data processing apparatus via said transmitting apparatus to execute said continuity test processing, and notifying a result of said continuity test processing said request generating unit; wherein when fixed length data for the continuity test received from said another fixed length data processing apparatus is fixed length data having been generated by its own fixed length data processing apparatus requesting to be looped back, looped back by said another fixed length data processing apparatus and received, said continuity test processing unit notifies said request generating unit that said continuity state is normal as a result of said continuity test processing; wherein when fixed length data for a continuity test received from another fixed length data processing apparatus is data having been generated in said another fixed length data processing apparatus requesting to be looped back, said continuity test processing unit loops back said fixed length data to said another fixed length data processing apparatus; wherein said requesting generating unit generates, in response to said execution request, setting data for the continuity test processing including at least generating data necessary to generate fixed length data for said continuity test and confirming data necessary to confirm contents of fixed length data for the continuity test received from another fixed length data processing apparatus; and wherein said continuity test processing unit comprises: