KR970056468A - OAM processing unit of ATM-MSS - Google Patents

Abstract

The present invention relates to an OAM processing apparatus of ATM-MASS, and the apparatus of the present invention comprises: first and second receivers 10 and 60 for inputting a cell stream; First and second extractors 20 and 70 extracting and analyzing OAM cells of the cell streams and separating the cells according to functions, and extracting user cells of the OAM processing target; First and second processing units (30, 80) for OAM processing the extracted user cells by the extracted OAM cells and generating OAM cells as a result; First and second inserting units 40 and 90 for inserting the generated OAM cells and OAM-processed user cells into the user cell stream bypassed from the first and second extracting units 10 and 60; The first and second transmitters 50 and 100 transmit the inserted cell stream, extract the OAM cell and the user cell of the connection requested by the user, perform OAM processing, and transmit the generated OAM cell and the user cell. By inserting and outputting the cell flow, the OAM process can be performed more effectively.

Description

OAM processing unit of ATM-MSS

Since this is an open matter, no full text was included.

4 is a block diagram of an OAM processing apparatus of an ATM-MSS according to the present invention.

Claims (3)

A first receiver 10 for inputting a multiplexed cell stream from a subscriber or another node; A first extracting unit 20 which receives a cell stream from the first receiving unit 10, extracts and analyzes an OAM cell for each function, and separates a user cell of the OAM processing target; A first processor (30) for OAM processing the extracted user cell by the extracted OAM cell and generating an OAM cell based on the processing result; A first inserting unit 40 receiving the generated OAM cell and the OMA processed user cell and inserting the generated OAM cell and the user cell stream bypassed from the first extracting unit 10; A first transmitter 50 which receives a cell from the first cell inserter 40 and transmits the cell to a cell switching module; A second receiver 60 for inputting the multiplexed cell stream from the cell switching module; A second extracting unit (70) which receives the cell stream from the second receiving unit (60), extracts and analyzes OAM cells, and separates them by function, and extracts user cells of the OAM processing target; A second processing unit (80) for performing OAM processing on the extracted user cell by the extracted OAM cell and generating an OAM cell based on the processing result; A second inserter (90) for receiving the generated OAM cell and OAM-processed user cell and inserting the generated OAM cell into a user cell stream bypassed from the second extractor (60); And a second transmitter 90 which receives the cell from the second cell inserter 70 and transmits the cell to the cell switch module. The method according to claim 1, wherein the first processing unit 30 reads the OAM cell and the user cell of the corresponding function from the first extracting unit 20 and receives burnout coefficients or rare detection for each connection of the extracted user cells. A first operation monitoring unit 31 generating an OAM cell based on the result; A first continuous signal detector 32 which reads an OAM cell and a user cell of a corresponding function from the first extractor 30 and generates an OAM cell if transmission of the user cell does not occur for a predetermined time for a corresponding connection; To read the OAM cell of the corresponding function from the first extractor 20 and check whether there is an abnormal connection with the set receiving node, the OAM cell is generated and transmitted to the receiving node through the second inserting unit 90. A first loop checker (33) for receiving a number of phantom OAM cells from the receiving node through a first extracting unit (20) and comparing the transmitted OAM cells with the received OAM cells; The OAM cell is input from the first extractor 20, the error bit is inspected, and the cell in which the error is detected is discarded and transmitted to the first operation monitor 31 or the first continuous signal detector 32. The first error bit that receives the OAM cell from the first operation monitoring unit 31 or the first continuous signal detection unit 32, generates an error detection bit, and transmits the error detection bit to the first insertion unit 40 in addition to the corresponding part of the cell. It is characterized by consisting of a detection unit 34. The method of claim 1, wherein the second processor 80 reads an OAM cell and a user cell of a corresponding function from the second extractor 70, and performs transmission coefficient or error detection for each connection of the extracted user cell. A second operation monitoring unit 81 generating an OAM cell based on the result; A second continuous signal detector 82 which reads an OAM cell and a user cell of a corresponding function from the second extractor 70 and generates a cell if transmission of the user cell does not occur for a predetermined time for a corresponding connection; To read the OAM cell of the corresponding function from the second extractor 70 and check whether there is an abnormal connection with the set receiving node, the OAM cell is generated and transmitted to the receiving node through the first inserter 40. A second loop checker 83 which receives the OAM cell from the receiving node through the second extractor 70 and compares the transmitted OAM cell with the received OAM cell; And receiving the OAM cell from the second extractor 70 and checking the error bit to discard the cell in which the error is detected, and transmitting the discarded cell to the second operation monitor 81 or the second continuous signal detector 82, The OAM cell is input from the second operation monitoring unit 81 or the second continuous signal detection unit 82 to generate an error detection bit, and is added to the corresponding part of the cell and transmitted to the insertion unit. It is characterized by being configured. ※ Note: The disclosure is based on the initial application.