KR970072814A - Ring alarm method in a branching (ADM) network of a synchronous optical transmission apparatus - Google Patents

Ring alarm method in a branching (ADM) network of a synchronous optical transmission apparatus Download PDF

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Publication number
KR970072814A
KR970072814A KR1019960013980A KR19960013980A KR970072814A KR 970072814 A KR970072814 A KR 970072814A KR 1019960013980 A KR1019960013980 A KR 1019960013980A KR 19960013980 A KR19960013980 A KR 19960013980A KR 970072814 A KR970072814 A KR 970072814A
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South Korea
Prior art keywords
ring
bit
alarm
alm
dma
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KR1019960013980A
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Korean (ko)
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KR100195063B1 (en
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임상희
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유기범
대우통신 주식회사
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Publication of KR970072814A publication Critical patent/KR970072814A/en
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  • Time-Division Multiplex Systems (AREA)

Abstract

본 발명은 동기식 광전송장치의 분기결합(ADM)망에 있어서 링 경보방법에 관한 것으로 상기 네트웍에 연결된 노드들이 초기화하는 단계(200∼203); 상기 각 노드가 동기식 다중화 프레임의 구간오버헤드에 속하는 F1바이트를 읽어오는 단계(204); 상기 F1바이트를 검사하여 경보를 판단하는 단계(205); 상기 판단결과 경보가 검출되면 디엠에이(DMA)상태로 셋하고, 링경보비트(RING_ALM_BIT)를 셋하여 전송하는 단계(205, 206); 상기 판단결과 경보가 검출되지 않고 디엠에이(DMA)상태이면 디엠에이2 바이패스(DMA2 BYPASS)상태로 셋한 후 링경보비트(RING_ALM_BIT)를 리셋하고 전송하는 단계(212); 상기 판단결과 경보가 검출되지 않고 디엠에이2바이패스(DMA2 BYPASS)상태에서 소정시간이 경과되면 바이패스(BYPASS)상태로 셋하는 단계(210, 211); 상기 판단결과 경보가 검출되지 않고 바이패스(BYPASS)상태로서 모국(주국, Master station)이면, 정기적으로 링경보비트(RING_ALM_BIT)를 리셋하여 전송하고, 모국이 아니면 링경보비트(RING_ALM_BIT)를 그대로 통과시키는 단계(213∼218); 및 상기 링겨보비트(RING_ALM_BIT)에 따라 LED를 점등 혹은 소등시키는 단계(219∼226)가 구비되어 있다. 따라서 모든 노드들은 링 경보 비트에 따라 해당 경보를 표시하므로써 전송로의 장애상태를 표시하여 유지보수를 용이하게 하는 효과가 있다.The present invention relates to a ring alarm method in an ADM network of a synchronous optical transmission apparatus, wherein nodes connected to the network initialize (200 - 203); Reading (204) each F1 byte belonging to the interval overhead of the synchronous multiplexed frame; Checking (205) the F1 byte to determine an alert; If it is determined that an alarm is detected, setting (205, 206) a DMA (DMA) state and setting and transmitting a ring alert bit (RING_ALM_BIT); If it is determined that the alarm is not detected and the DMA is in the DMA state, resetting and transmitting the ring alert bit (RING_ALM_BIT) after setting the DMA2 bypass state (212); (210, 211) when the alarm is not detected and the DMA_BYPASS state is set to a bypass state when a predetermined time has elapsed; As a result of the determination, if the alarm is not detected and the BYPASS state is the master station, the ring alarm bit RING_ALM_BIT is periodically reset and transmitted. Otherwise, the ring alarm bit RING_ALM_BIT is passed as it is (213-218); And steps 219 to 226 for turning on or off the LED in accordance with the ringing notice bit RING_ALM_BIT. Therefore, all the nodes display the alarm according to the ring alarm bit, thereby displaying the failure state of the transmission path, thereby facilitating the maintenance.

Description

동기식 광전송장치의 분기결합(ADM)망에 있어서 링 경보방법Ring alarm method in a branching (ADM) network of a synchronous optical transmission apparatus

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

제6도는 본 발명에 따른 동작 상태도, 제7도는 본 발명에 따라 링 경보를 처리하는 흐름을 도시한 흐름도이다.FIG. 6 is an operational state diagram according to the present invention, and FIG. 7 is a flowchart showing a flow of processing a ring alarm according to the present invention.

Claims (3)

동기식 다중화기능을 갖는 광전송장치들로 구성된 노드들이 링형으로 이중선로를 형성한 후 분리/결합(ADM)형으로 운용되는 네트웍에 있어서, 상기 네트웍에 연결된 노드들이 초기화하는 단계(200∼203); 상기 각 노드가 동기식 다중화 프레임의 구간오버헤드에 속하는 F1바이트를 읽어오는 단계(204); 상기 F1바이트와 자체 시스템을 검사하여 경보를 판단하는 단계(205); 상기 판단결과 경보가 검출되면 디엠에이(DMA)상태로 셋 하고, 링 경보 비트(RING_ALM_BIT)를 셋하여 전송하는 단계(205, 206); 상기 판단결과 경보가 검출되지 않도 디엠에이(DMA)상태이면 디엠에이2바이패스(DMA2 BYPASS)상태로 셋 한 후 링 경보 비트(RING_ALM_BIT)를 리셋하여 전송하는 단계(212); 상기 판단결과 경보가 검출되지 않고 디엠에이2바이패스(DMA2 BYPASS)상태에서 소정시간이 경과되면 바이패스(BYPASS)상태로 셋하는 단계(210, 211); 상기 판단결과 경보가 검출되지 않고 바이패스(BYPASS)상태로서 모국(Master station)이면, 정기적으로 링 경보 비트(RING_ALM_BIT)를 리셋하여 전송하고, 모국이 아니면 링 경보 비트(RING_ALM_BIT)를 그대로 통과시키는 단계(213∼218); 및 상기 링경보비트(RING_ALM_BIT)에 따라 LED를 점등 혹은 소등시키는 단계(219∼226)가 구비된 동기식 광전송장치의 분기결합(ADM)망에 있어서 링 경보방법.A network in which nodes formed of optical transmission devices having a synchronous multiplexing function form a ring-shaped double line and operate as an ADM type, the nodes connected to the network initialize steps (200 to 203); Reading (204) each F1 byte belonging to the interval overhead of the synchronous multiplexed frame; Checking the F1 byte and its own system to determine an alert (205); If it is determined that an alarm is detected, setting (205, 206) a DMA (DMA) state and setting and transmitting a ring alert bit (RING_ALM_BIT); If the alarm is not detected as a result of the determination, it is set to a DMA2 bypass state if the DMA state is DMA, and then reset and transmit the ring alert bit RING_ALM_BIT 212; (210, 211) when the alarm is not detected and the DMA_BYPASS state is set to a bypass state when a predetermined time has elapsed; (RING_ALM_BIT) is periodically reset if the alarm is not detected and the master station is in the BYPASS state, and if not, the RING_ALM_BIT is passed as it is (213-218); And steps (219 to 226) for turning on or off the LED according to the ring alarm bit (RING_ALM_BIT). 제1항에 있어서, 상기 모국이 링 경보 비트(RING_ALM_BIT)를 정기적으로 리셋하는 단계는 매분의 15초이내이면 리셋하고, 이후에는 수신된 링 경보 비트(RING_ALM_BIT)를 그대로 통과시키는 것을 특징으로 하는 동기식 광전송장치의 분기결합(ADM)망에 있어서 링 경보 방법.2. The method of claim 1, wherein the step of periodically resetting the ring alert bit (RING_ALM_BIT) by the parent station resets within 15 seconds of each minute and then passes the received ring alert bit (RING_ALM_BIT) A ring alarm method in a branching (ADM) network of an optical transmission apparatus. 제1항에 있어서, 상기 LED를 점등 혹은 소등시키는 단계는 링 경보 비트(RING_ALM_BIT)에 따라 링 경보 플래그(RING_ALM_flag)를 셋 혹은 리셋하고, 상기 링 경보 플래그(RING_ALM_flag)의 셋 혹은 리셋 상태에 따라 LED를 점등 혹은 소등하는 것을 특징으로 하는 동기식 광전송장치의 분기결합(ADM)망에 있어서 링 경보방법.The method of claim 1, wherein the step of turning on or off the LED comprises: setting or resetting a ring alarm flag (RING_ALM_flag) according to a ring alarm bit (RING_ALM_BIT) (ADM) network of a synchronous optical transmission apparatus. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is disclosed by the contents of the first application.
KR1019960013980A 1996-04-30 1996-04-30 Ring Alarming Method in Branch Coupling Network of Synchronous Optical Transmission Device KR100195063B1 (en)

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KR1019960013980A KR100195063B1 (en) 1996-04-30 1996-04-30 Ring Alarming Method in Branch Coupling Network of Synchronous Optical Transmission Device

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KR1019960013980A KR100195063B1 (en) 1996-04-30 1996-04-30 Ring Alarming Method in Branch Coupling Network of Synchronous Optical Transmission Device

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KR100195063B1 KR100195063B1 (en) 1999-06-15

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100798264B1 (en) * 2001-10-31 2008-01-24 주식회사 케이티 The method for mapping unit alarm of synchronous optical transmission system to service circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100798264B1 (en) * 2001-10-31 2008-01-24 주식회사 케이티 The method for mapping unit alarm of synchronous optical transmission system to service circuit

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