CN103916258A - Alarm indication signal alarming clearing method and service layer and client layer maintenance entity group end point - Google Patents
Alarm indication signal alarming clearing method and service layer and client layer maintenance entity group end point Download PDFInfo
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- CN103916258A CN103916258A CN201310005019.0A CN201310005019A CN103916258A CN 103916258 A CN103916258 A CN 103916258A CN 201310005019 A CN201310005019 A CN 201310005019A CN 103916258 A CN103916258 A CN 103916258A
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Abstract
The invention provides an alarm indication signal alarming clearing method. According to the method, when a route between MEPs of a service layer maintenance entity group end point fails, an AIS alarming generation message is generated to be sent to a corresponding client layer MEP to generate AIS alarming, and when the route between the MEPs of the service layer recovers, an AIS alarming clearing message is generated to be sent to the corresponding client layer MEP to clear the generated AIS alarming, and a client layer protection switching error due to delayed clearing of the AIS alarming is effectively avoided. The invention further provides the service layer and client layer maintenance entity group end point clearing the alarm indication signal alarming.
Description
Technical field
The present invention relates to the alarming processing technology of a kind of service layer and client layer, particularly a kind of alarm indication signal alarm sweep-out method, service layer and client layer Maintenance Entity end points.
Background technology
Y.1731 be ITU-T(ITU Telecommunication Standardization Sector, International Telecommunications Union's telecommunication standards group) be the OAM(Operation of Ethernet definition specially, Administration and Maintenance, operation management maintain) standard, AIS(Alarm Indication Signal, alarm indication signal) be a kind of OAM instrument of this standard definition, it is mainly used in service layer and detects that the backward client layer of fault carries out alarm notice.For example, as the MEP(Maintenance Entity Group End Point of service layer, Maintenance Entity end points) detect after fault, adjacent client layer MEP sends ais alarm message downstream, to notify it that fault has occurred, adjacent client layer MEP can produce ais alarm after receiving ais alarm message; After the MEP of service layer detects that fault disappears, just stop adjacent client layer MEP downstream and send AIS message, adjacent client layer MEP does not receive from the ais alarm message of service layer and can remove ais alarm within the transmission cycle (1 second) of 3.5 times.
In carrier class Ethernet, ais alarm can be used to trigger client layer protection and switch, because the ais alarm extinction time of Y.1731 definition is oversize, and the generation of the situation of switching that leads to errors sometimes.For example, in stratification protection, if client layer still detects ais alarm after Hold-off timer expiry, just can think that service layer protects unsuccessfully, switch thereby trigger client layer protection.But, if having completed protection after Hold-off timer expiry, service layer switches, and just the value of ais alarm removing timer is non-vanishing, and now client layer still can detect ais alarm, occurs the situation of by mistake switching.
Summary of the invention
Main purpose of the present invention is to provide a kind of alarm indication signal alarm sweep-out method, to prevent switching mistake because of the client layer protection that delay removing ais alarm causes.
In addition, also provide a kind of alarm indication signal alarm to remove service layer and client layer Maintenance Entity end points, to prevent switching mistake because of the client layer protection that delay removing ais alarm causes.
A kind of alarm indication signal alarm sweep-out method, the method comprising the steps of: the state in the work at present path of detecting and the Maintenance Entity end points MEP of other service layers; When with the work at present path fails of the MEP of other service layers, generate alarm indication signal ais alarm and produce message, the ais alarm of generation is produced to message sends to adjacent client layer MEP so that adjacent client layer MEP produces ais alarm; Recover periodically to send described ais alarm before normal in the path of breaking down with the MEP of other service layers and produce message to adjacent client layer MEP so that adjacent client layer MEP produces ais alarm; The state in the path that detecting and the MEP of other service layers break down; In the time that the path of breaking down with the MEP of other service layers recovers normal, generate ais alarm and remove message, the ais alarm of generation is removed to message sends to adjacent client layer MEP so that adjacent client layer MEP removes ais alarm.
Preferably, the method also comprises: described adjacent client layer MEP, in the time receiving the ais alarm generation message that the MEP of service layer sends, produces message according to the ais alarm receiving and produces corresponding ais alarm; And described adjacent client layer MEP is in the time receiving the ais alarm removing message that the MEP of service layer sends, and removes the ais alarm of all correspondences of message removing generation according to the ais alarm receiving.
Preferably, described ais alarm generation message comprises the field that represents service layer's failure mode.
Preferably, described ais alarm removing message comprises the field that represents service layer's fault clearance.
A kind of service layer Maintenance Entity end points, described service layer Maintenance Entity end points comprises: fault detection module, for detecting and the state in the work at present path of the MEP of other service layers, and the state in detecting and the MEP of other service layers path of breaking down; And AIS message sending module, produce message for generate ais alarm when with the work at present path fails of the MEP of other service layers, the ais alarm of generation is produced to message and send to adjacent client layer MEP, recover periodically to send described ais alarm before normal in the path of breaking down with the MEP of other service layers and produce message to adjacent client layer MEP, in the time that the path of breaking down with the MEP of other service layers recovers normal, generate ais alarm and remove message, the ais alarm of generation is removed to message and send to adjacent client layer MEP.
A kind of client layer Maintenance Entity end points, described client layer Maintenance Entity end points comprises: ais alarm produces and remove module, for in the time receiving the ais alarm generation message that the MEP of service layer sends, produce message according to the ais alarm receiving and produce corresponding ais alarm, and in the time receiving the ais alarm removing message that the MEP of service layer sends, remove the ais alarm of all correspondences of message removing generation according to the ais alarm receiving.
Compare prior art; when the present invention passes through the path fails between the Maintenance Entity end points MEP of service layer, instant generation alarm indication signal ais alarm generation message gives corresponding client layer MEP with generation ais alarm; and path failure between the MEP of service layer while recovering normal instant generate ais alarm remove message to corresponding client layer MEP to remove the ais alarm producing, effectively avoided switching mistake because postponing to remove the client layer protection that ais alarm causes.
Accompanying drawing explanation
Fig. 1 is the MEP of service layer of the present invention sends exemplary plot from AIS message to client layer MEP.
Fig. 2 is the functional block diagram of the MEP of service layer of the present invention and client layer MEP.
Fig. 3 is the topology example figure that ais alarm of the present invention produces message.
Fig. 4 is the topology example figure that ais alarm of the present invention is removed message.
Fig. 5 is the concrete implementing procedure figure of ais alarm sweep-out method of the present invention preferred embodiment.
Realization, functional characteristics and the advantage of the object of the invention, in connection with embodiment, are described further with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
As shown in Figure 1, send the exemplary plot of AIS message to client layer MEP for the MEP of service layer of the present invention.For example, at the MEP(Maintenance Entity Group End Point of service layer, Maintenance Entity end points) 1 detect and the MEP of other service layers 2 between path fails time, or, the MEP of service layer 1 detect and the MEP of other service layers 2 between path while recovering normal, the MEP of service layer 1 can send AIS(Alarm Indication Signal, alarm indication signal to adjacent client layer MEP 3) message.
As a preferred embodiment, described AIS message comprises that ais alarm produces message and ais alarm is removed message.That is: the MEP of service layer 1 detect and the MEP of other service layers 2 between path fails time, the MEP of service layer 1 can send ais alarm to adjacent client layer MEP 3 and produce message; The MEP of service layer 1 detect and the MEP of other service layers 2 between path while recovering normal, the MEP of service layer 1 can send ais alarm to adjacent client layer MEP 3 and remove message.
As shown in Figure 2, be the functional block diagram of the MEP of service layer of the present invention and client layer MEP.The described MEP of service layer comprises fault detection module 10 and AIS message sending module 20, and described client layer MEP comprises that ais alarm produces and remove module 30.
This fault detection module 10, for detecting and the state in the work at present path of the MEP of other service layers, and the state in detecting and the MEP of other service layers path of breaking down.
This AIS message sending module 20, produce message for generate ais alarm when with the work at present path fails of the MEP of other service layers, the ais alarm generation message of generation is sent to adjacent client layer MEP so that adjacent client layer MEP produces ais alarm, recover periodically to send described ais alarm before normal in the path of breaking down with the MEP of other service layers and produce message to adjacent client layer MEP so that adjacent client layer MEP produces ais alarm, in the time that the path of breaking down with the MEP of other service layers recovers normal, generate ais alarm and remove message, the ais alarm removing message of generation is sent to adjacent client layer MEP so that adjacent client layer MEP removes ais alarm.It should be noted that; in the present embodiment; (one is operating path between the MEP of service layer, to dispose two paths; another is Protection path); when fault happens in operational between the MEP of Liang Ge service layer, can cause that trail protection switches, work at present path is switched to Protection path; between the MEP of service layer if there is operating path fault, overprotection occurs and switch, this AIS message sending module 20 sends described ais alarm removing message via switching Hou road radially adjoining client layer MEP.
As a preferred embodiment, this AIS message sending module 20 is according to the adjacent client layer MEG Level(Maintenance Entity Group Level of configuration, Maintenance Entity grade) find its adjacent client layer MEP.
As a preferred embodiment, as shown in Figure 3, described ais alarm produces message and comprises " Type " field that represents service layer's failure mode, and for example, " 0000 " represents Loss of continuity (LOC) fault.
As a preferred embodiment, as shown in Figure 4, described ais alarm is removed message and is comprised " Type " field that represents service layer's fault clearance, and for example, " 0111 " represents service layer's fault clearance, recovers normal condition.
As preferred embodiment; it should be noted that: produce " Type " Field Definition ais alarm type in message and ais alarm removing message at ais alarm; greatly shorten the time that ais alarm is removed, especially solved in stratification protection because of the disappear problem of switching that causes too slowly of ais alarm by mistake.
This ais alarm produces and removes module 30, for in the time receiving the ais alarm generation message that the MEP of service layer sends, produce message according to the ais alarm receiving and produce corresponding ais alarm, and in the time receiving the ais alarm removing message that the MEP of service layer sends, remove the ais alarm of all correspondences of message removing generation according to the ais alarm receiving.
As shown in Figure 5, be the concrete implementing procedure figure of ais alarm sweep-out method of the present invention preferred embodiment.
It is emphasized that: flow chart shown in Fig. 5 is only a preferred embodiment, those skilled in the art is when knowing, any embodiment building around inventive concept should not depart from the scope containing in following technical scheme:
The MEP of service layer: the state in the work at present path of detecting and the MEP of other service layers; When with the work at present path fails of the MEP of other service layers, generate ais alarm and produce message, the ais alarm of generation is produced to message sends to adjacent client layer MEP so that adjacent client layer MEP produces ais alarm; Recover periodically to send described ais alarm before normal in the path of breaking down with the MEP of other service layers and produce message to adjacent client layer MEP so that adjacent client layer MEP produces ais alarm; The state in the path that detecting and the MEP of other service layers break down; In the time that the path of breaking down with the MEP of other service layers recovers normal, generate ais alarm and remove message, the ais alarm of generation is removed to message sends to adjacent client layer MEP so that adjacent client layer MEP removes ais alarm.
Further, client layer MEP: in the time receiving the ais alarm generation message that the MEP of service layer sends, produce message according to the ais alarm receiving and produce corresponding ais alarm, and in the time receiving the ais alarm removing message that the MEP of service layer sends, remove the ais alarm of all correspondences of message removing generation according to the ais alarm receiving.
Below progressively to realize the removing to ais alarm in conjunction with the present embodiment.
Step S10, the state in the work at present path of detecting and the MEP of other service layers.
Step S11, when with the work at present path fails of the MEP of other service layers, proceeds to and carries out following step S12, or, time working properly with the work at present path of the MEP of other service layers, proceed to and carry out above-mentioned steps S10.
Step S12, generates ais alarm and produces message, and the ais alarm generation message of generation is sent to adjacent client layer MEP so that adjacent client layer MEP produces ais alarm.
Step S13, recovers periodically to send described ais alarm before normal and produces message to adjacent client layer MEP so that adjacent client layer MEP produces ais alarm in the path of breaking down with the MEP of other service layers.
Step S15, the state in the path that detecting real-time and the MEP of other service layers break down.
Step S16, while recovering normal, proceeds to and carries out following step S17 in the path of breaking down with the MEP of other service layers, or, while not recovering normal in the path of breaking down with the MEP of other service layers, return and carry out above-mentioned steps S13.
Step S17, generates ais alarm and removes message, and the ais alarm removing message of generation is sent to adjacent client layer MEP so that adjacent client layer MEP removes ais alarm.
These are only the preferred embodiments of the present invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes specification of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (6)
1. an alarm indication signal alarm sweep-out method, is characterized in that, the method comprising the steps of:
The state in the work at present path of detecting and the Maintenance Entity end points MEP of other service layers;
When with the work at present path fails of the MEP of other service layers, generate alarm indication signal ais alarm and produce message, the ais alarm of generation is produced to message sends to adjacent client layer MEP so that adjacent client layer MEP produces ais alarm;
Recover periodically to send described ais alarm before normal in the path of breaking down with the MEP of other service layers and produce message to adjacent client layer MEP so that adjacent client layer MEP produces ais alarm;
The state in the path that detecting and the MEP of other service layers break down;
In the time that the path of breaking down with the MEP of other service layers recovers normal, generate ais alarm and remove message, the ais alarm of generation is removed to message sends to adjacent client layer MEP so that adjacent client layer MEP removes ais alarm.
2. alarm indication signal alarm sweep-out method as claimed in claim 1, is characterized in that, the method also comprises:
Described adjacent client layer MEP, in the time receiving the ais alarm generation message that the MEP of service layer sends, produces message according to the ais alarm receiving and produces corresponding ais alarm; And
Described adjacent client layer MEP, in the time receiving the ais alarm removing message that the MEP of service layer sends, removes the ais alarm of all correspondences of message removing generation according to the ais alarm receiving.
3. alarm indication signal alarm sweep-out method as claimed in claim 1, is characterized in that, described ais alarm produces message and comprises the field that represents service layer's failure mode.
4. alarm indication signal alarm sweep-out method as claimed in claim 1, is characterized in that, described ais alarm is removed message and comprised the field that represents service layer's fault clearance.
5. the service layer's Maintenance Entity end points that is applied to method described in the arbitrary claim of claim 1 to 4, is characterized in that, described service layer Maintenance Entity end points comprises:
Fault detection module, for detecting and the state in the work at present path of the MEP of other service layers, and the state in detecting and the MEP of other service layers path of breaking down; And
AIS message sending module, produce message for generate ais alarm when with the work at present path fails of the MEP of other service layers, the ais alarm of generation is produced to message and send to adjacent client layer MEP, recover periodically to send described ais alarm before normal in the path of breaking down with the MEP of other service layers and produce message to adjacent client layer MEP, in the time that the path of breaking down with the MEP of other service layers recovers normal, generate ais alarm and remove message, the ais alarm of generation is removed to message and send to adjacent client layer MEP.
6. a client layer Maintenance Entity end points that is applied to method described in the arbitrary claim of claim 1 to 4, is characterized in that, described client layer Maintenance Entity end points comprises:
Ais alarm produces and removes module, for in the time receiving the ais alarm generation message that the MEP of service layer sends, produce message according to the ais alarm receiving and produce corresponding ais alarm, and in the time receiving the ais alarm removing message that the MEP of service layer sends, remove the ais alarm of all correspondences of message removing generation according to the ais alarm receiving.
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| CN201310005019.0A CN103916258A (en) | 2013-01-07 | 2013-01-07 | Alarm indication signal alarming clearing method and service layer and client layer maintenance entity group end point |
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| CN201310005019.0A CN103916258A (en) | 2013-01-07 | 2013-01-07 | Alarm indication signal alarming clearing method and service layer and client layer maintenance entity group end point |
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| CN110401876A (en) * | 2019-07-16 | 2019-11-01 | 视联动力信息技术股份有限公司 | The asynchronous alarm method of audio-video, device, electronic equipment and readable storage medium storing program for executing |
| CN112003715A (en) * | 2019-05-27 | 2020-11-27 | 烽火通信科技股份有限公司 | End-to-end service alarm state monitoring method and system |
| WO2021120708A1 (en) * | 2019-12-19 | 2021-06-24 | 盛科网络（苏州）有限公司 | Message processing method and device, storage medium, and electronic device |
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| CN1756182A (en) * | 2004-09-30 | 2006-04-05 | 华为技术有限公司 | Protection switching method in multiprotocol label switching system |
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| CN112003715A (en) * | 2019-05-27 | 2020-11-27 | 烽火通信科技股份有限公司 | End-to-end service alarm state monitoring method and system |
| CN112003715B (en) * | 2019-05-27 | 2022-09-13 | 烽火通信科技股份有限公司 | End-to-end service alarm state monitoring method and system |
| CN110401876A (en) * | 2019-07-16 | 2019-11-01 | 视联动力信息技术股份有限公司 | The asynchronous alarm method of audio-video, device, electronic equipment and readable storage medium storing program for executing |
| WO2021120708A1 (en) * | 2019-12-19 | 2021-06-24 | 盛科网络（苏州）有限公司 | Message processing method and device, storage medium, and electronic device |
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