CN101599847A - A kind of method for inhibiting continuous errors of optical ring network - Google Patents
A kind of method for inhibiting continuous errors of optical ring network Download PDFInfo
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- CN101599847A CN101599847A CNA2008100676451A CN200810067645A CN101599847A CN 101599847 A CN101599847 A CN 101599847A CN A2008100676451 A CNA2008100676451 A CN A2008100676451A CN 200810067645 A CN200810067645 A CN 200810067645A CN 101599847 A CN101599847 A CN 101599847A
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Abstract
The invention discloses a kind of method for inhibiting continuous errors of optical ring network, described method comprises the steps: step 1: by the following link point of webmaster according to business, obtain the APS ID of link point on this business, obtain this professional corresponding relation traffic table; By described webmaster described traffic table is issued to the APS module; Step 2: the APS ID with link point on the described business is inserted in the corresponding idle channel expense by described webmaster; Step 3: describedly go up the APS ID of link point and the ID in the described traffic table by what link point under the described business was relatively received,, then carry out push operation if the APS ID and the ID in the described traffic table of link point are inequality on described.Decision logic of the present invention is simple, realizes easily, has avoided wrongly connecting but in fact the resistance of the mistake of the business of wrong company is wrong.
Description
Technical field
The present invention relates to annular SDH (Synchronous Digital Hierarchy, SDH (Synchronous Digital Hierarchy)) optical transport network, be specifically related to the method for inhibiting continuous errors that the SDH equipment protection is switched.
Background technology
An important feature of SDH equipment is its self-healed protection function, and especially the self-healed protection function of ring topology is its outstanding advantage.G.841, ITU-T is making concrete suggestion to the protection switch function of various ring topologies in the agreement " type and the characteristic of SDH network protection architecture ".
But, G.841 propose in the recommended standard, when loop multiplexing section protection generation protection is switched,, insert identical protection channel time slot owing to serve to compete because each protects channel time slot to can be used for a plurality of services, this just has the wrong possibility even of the business of generation.Show under the normal condition, a professional Q is arranged between node A-C as Fig. 1, a professional R is arranged between node A-F, Q, R all take same AU (Administrator Unit, administrative unit) number.When the A node taking place when isolated, as Fig. 2, do not have service communication between C, the F originally, but after bridge joint takes place switching, the result makes there has been service communication between node C, F, and wrong company has promptly taken place.
In transmission network, the wrong company firmly be avoided.G.841 error connection prevention has been provided a solution---be pressed into, promptly possible mistake was communicated with and inserted AIS (AlarmIndicator Signal in those time slots that may occur at wrong connection business, alarm indication signal), proposition the node of switching action takes place after by ring figure information and identification bridge joint request and check this switch can influence business determine that possible mistake connects, and advise being pressed into occurring in the switching node place.Switch and to discern by K1, K2 (being used to protect the MSOH byte of the effect of switching among the SDH) byte.Ring figure information comprises: node the order on the ring, this node up and down and the time slot configuration situation of the business of break-through, to each time slot services on the ring and the node address of ring down.But the solution in practical application proposition G.841 has following problem: can occur 1, that some time slot is inreal to be taken place wrong the company, but might be pressed into and cause professional obstructed phenomenon, resistance wrong problem sometimes promptly makes a mistake; What 2, need contains much information, and the decision logic complexity may influence protection switch time.
Summary of the invention
The invention provides a kind of method for inhibiting continuous errors of optical ring network, need to contain much information to solve in the prior art, the decision logic complexity, the wrong problem of wrong sometimes resistance.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of method for inhibiting continuous errors of optical ring network is characterized in that, described method comprises the steps:
Step 1: by the following link point of webmaster, obtain the APS ID of link point on this business, obtain this professional corresponding relation traffic table according to business; By described webmaster described traffic table is issued to the APS module;
Step 2: the APS ID with link point on the described business is inserted in the corresponding idle channel expense by described webmaster;
Step 3: describedly go up the APS ID of link point and the ID in the described traffic table by what link point under the described business was relatively received,, then carry out push operation if the APS ID and the ID in the described traffic table of link point are inequality on described.
Preferably, before execution in step 1, configuration two fine ring/4F Rings on webmaster, and configuration service.
Preferably, described configuration two fine ring/4F Rings comprise: in this two fine ring/4F Ring, to the unique APS ID of each node configuration one;
Described configuration service comprises: professional from source node, and under the destination node, the intermediate node break-through.
Preferably, the concrete list item of described traffic table comprises: following ring veneer, timeslot number, ID, receipts traffic direction.
Preferably, in step 1, check by webmaster whether described business has modification,, then continue execution in step 1 if modification is arranged, otherwise execution in step 2.
Preferably, in the step 3, whether the APS ID that carries of ring time slot is consistent with the ID in the described traffic table relatively down by described down link point, if inconsistent, then carries out push operation, towards the corresponding time slot insertion alarm indication signal that encircles down.
Beneficial effect of the present invention is, this invention is placed on professional circling point down to push operation, and whether comes from by simple ring relatively down is professional that node that it wants to receive finishes, and realizes simple; The present invention need not to utilize complicated topological diagram and ring figure, circling point APS (Automatic Protection Switch on the business that the wrong point of resistance is just simply more once received, APS) whether its desired value gets final product ID, and decision logic is simple, realizes easily; Simultaneously, owing to added by webmaster to check whether described business has the step of modification,, then obtained new traffic table again according to amended business if modification is arranged, thereby in the resistance mistake method of having avoided G.841 recommending, the mistake of the business of wrong company resistance mistake to may wrongly connecting but in fact; Simultaneously, this method has also been avoided broadcasting service to lose because of a purpose causing the also bulged-in situation of other purpose business, improved the service quality of network.
Description of drawings
Fig. 1 is the fine ring of two under a normal condition network chart;
The wrong network diagram that connects takes place because of node failure in Fig. 2;
Fig. 3 is the flow chart of the invention process error connection prevention.
Embodiment
The present invention will be further described below in conjunction with accompanying drawing.
Show under the normal condition, a professional Q is arranged between node A-C as Fig. 1, a professional R is arranged between node A-F, Q, R all take same AU number.When the A node taking place when isolated, as Fig. 2, do not have service communication between C, the F originally, but after bridge joint takes place switching, the result makes there has been service communication between node C, F, and wrong company has promptly taken place.For fear of this wrong the company, modern transmission board software has all designed a resistance mismatch piece, is used to judge that wrong company has taken place which business, then those business is pressed into, and the present invention is used for hindering the mismatch piece just and finds the wrong a kind of method that connects.
Business configuration on the two fine rings generally has a basic principle, professionally exactly walks same timeslot number on ring, otherwise after node failure takes place switching, business can be made mistakes.Because this requirement after a business is encircled from a point, or is walked working time slot, or is walked to protect time slot to arrive central port down.If professional following link point is a switching node, so professional will the ring down from reverse protection time slot; Otherwise business is encircled down from working time slot.Professional pass-through nodes outside last circling point and following circling point, bridge joint is switched the expense that can not change passage.
Analyzing the wrong reason that connects, can reach a conclusion, is because the business of encircling from certain point, has encircled under non-its destination node.If in business, can mark destination node or source node, allow down the link point judge what whether this business oneself should be received, or oneself want to receive, so just can judge whether wrong the company.Because broadcasting service is arranged, a plurality of destination nodes at last circling point tagged traffic are impossible, therefore, at last link point place mark source node, and judge in view of the above that at following link point place this business is that it wants to receive, determine whether wrong the company, the mark that APS ID is unique node on the ring, selecting for use APS ID as vertex ticks, is the easiest method.
Referring to Fig. 3, the implementation method of the error connection prevention of optical ring network provided by the invention may further comprise the steps:
Step 1: by the following link point of webmaster, obtain the APS ID of link point on this business, obtain this professional corresponding relation traffic table according to business; By described webmaster described traffic table is issued to the APS module.The concrete list item of traffic table comprises in the present embodiment: following ring veneer, timeslot number, ID number, receive traffic direction.Receiving traffic direction is clockwise or counter clockwise direction.Come link point on the tagged traffic with APS ID.The ring time slot at most only has a upward ring Timeslot source under one, a plurality of low order VC (VirtualContainer, virtual container) is crossed the multi-source business of a high-order VC transmission, still like this from single low order, at this moment, for broadcasting service, go up the ring time slot for one and can under a plurality of nodes, encircle.The APS module is protected and is switched according to detected alarm signal and from the order that webmaster issues.When business has modification, all to re-execute step 1 in the present embodiment, obtaining revising the professional traffic table in back, otherwise, might mistake hinder mistake.
Before execution in step 1, configuration two fine ring/4F Rings on webmaster, and configuration service.In present transmission network management, all there is the multiplex section protection configuration module, be responsible for distributing the APSID of each network element on the two fine ring/4F Rings, and the corresponding relation between configuration effort unit and the protected location.Disposing two fine ring/4F Rings in the present embodiment comprises: in this two fine ring/4F Ring, to the unique APS ID of each node configuration one; Configuration service comprises: professional from source node, and under the destination node, the intermediate node break-through.The business of recommending is walked same timeslot number on ring.
Step 2: the APS ID with link point on the described business is inserted in the corresponding idle channel expense by described webmaster; Hinder the mismatch piece in the present embodiment and obtain the APS ID of this this network element of multiplex section protective ring from the multiplex section protection configuration module; APS ID is inserted in the idle channel expense of ring VC.Path overhead is reserved no fewer, and is technical, can adopt the several positions that keep overhead byte, utilizes multi-frame to transmit.
Step 3: describedly go up the APS ID of link point and the ID in the described traffic table by what the following link point of described business was relatively received,, then carry out push operation if the APS ID and the ID in the described traffic table of link point are inequality on described.In the present embodiment, following link point is according to traffic table, and to each clauses and subclauses in the traffic table, whether the source APS ID that carries of ring time slot is consistent with the APS ID in the traffic table relatively down one by one, if inconsistent, then carries out push operation, towards the corresponding time slot of ring down insertion AIS.
In sum, the method for inhibiting continuous errors of optical ring network provided by the invention need not to utilize complicated topological diagram and ring figure, and whether its desired value gets final product circling point APS ID on the business that the wrong point of resistance is just simply more once received, decision logic is simple, realizes easily.Simultaneously, in the resistance mistake method that the present invention has avoided G.841 recommending, the mistake of the business of wrong company resistance mistake to may wrongly connecting but in fact.
Claims (6)
1, a kind of method for inhibiting continuous errors of optical ring network is characterized in that, described method comprises the steps:
Step 1: by the following link point of webmaster, obtain the APS ID of link point on this business, obtain this professional corresponding relation traffic table according to business; By described webmaster described traffic table is issued to the APS module;
Step 2: the APS ID with link point on the described business is inserted in the corresponding idle channel expense by described webmaster;
Step 3: describedly go up the APS ID of link point and the ID in the described traffic table by what link point under the described business was relatively received,, then carry out push operation if the APS ID and the ID in the described traffic table of link point are inequality on described.
2, the method for inhibiting continuous errors of optical ring network as claimed in claim 1 is characterized in that, before execution in step 1, and configuration two fine ring/4F Rings on webmaster, and configuration service.
3, the method for inhibiting continuous errors of optical ring network as claimed in claim 2 is characterized in that, described configuration two fine ring/4F Rings comprise: in this two fine ring/4F Ring, to the unique APS ID of each node configuration one;
Described configuration service comprises: professional from source node, and under the destination node, the intermediate node break-through.
4, the method for inhibiting continuous errors of optical ring network as claimed in claim 1 is characterized in that, the concrete list item of described traffic table comprises: following ring veneer, timeslot number, ID, receipts traffic direction.
5, the method for inhibiting continuous errors of optical ring network as claimed in claim 1 is characterized in that, in step 1, checks by webmaster whether described business has modification, if modification is arranged, then continues execution in step 1, otherwise execution in step 2.
6, the method for inhibiting continuous errors of optical ring network as claimed in claim 1; it is characterized in that; in the step 3; whether consistent by the APS ID that the relatively more following ring time slot of described following link point carries with the ID in the described traffic table; if it is inconsistent; then carry out push operation, insert alarm indication signal towards the corresponding time slot of ring down.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008100676451A CN101599847A (en) | 2008-06-06 | 2008-06-06 | A kind of method for inhibiting continuous errors of optical ring network |
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| CNA2008100676451A CN101599847A (en) | 2008-06-06 | 2008-06-06 | A kind of method for inhibiting continuous errors of optical ring network |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106941373A (en) * | 2017-03-21 | 2017-07-11 | 烽火通信科技股份有限公司 | A kind of device and method that broadcasting service protection is realized in optical transfer network |
| WO2018192223A1 (en) * | 2017-04-20 | 2018-10-25 | Sino-Telecom Technology Co., Inc | Method and device for automatically discovering cross-node service topology on transoceanic multiplex section shared protection ring |
| CN110417631A (en) * | 2019-07-22 | 2019-11-05 | 华信塞姆（成都）科技有限公司 | A kind of L1 environmental protection maintaining method in SPN based on FlexE |
-
2008
- 2008-06-06 CN CNA2008100676451A patent/CN101599847A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106941373A (en) * | 2017-03-21 | 2017-07-11 | 烽火通信科技股份有限公司 | A kind of device and method that broadcasting service protection is realized in optical transfer network |
| WO2018171209A1 (en) * | 2017-03-21 | 2018-09-27 | 烽火通信科技股份有限公司 | Device and method for realizing broadcast service protection in optical transport network |
| CN106941373B (en) * | 2017-03-21 | 2019-09-17 | 烽火通信科技股份有限公司 | A kind of device and method for realizing broadcasting service protection in optical transfer network |
| WO2018192223A1 (en) * | 2017-04-20 | 2018-10-25 | Sino-Telecom Technology Co., Inc | Method and device for automatically discovering cross-node service topology on transoceanic multiplex section shared protection ring |
| AU2017410499B2 (en) * | 2017-04-20 | 2020-05-28 | Sino-Telecom Technology Co., Inc | Method and device for automatically discovering cross-node service topology on transoceanic multiplex section shared protection ring |
| RU2730390C1 (en) * | 2017-04-20 | 2020-08-21 | Сино-Телеком Технолоджи Ко., ИНК | Method and apparatus for automatic determination of inter-node communication topology in shared backup ring of transoceanic multiplex section |
| US10972309B2 (en) | 2017-04-20 | 2021-04-06 | Sino-Telecom Technology Co., Inc. | Method and device for automatically discovering cross-node service topology on transoceanic multiple section shared protection ring |
| CN110417631A (en) * | 2019-07-22 | 2019-11-05 | 华信塞姆（成都）科技有限公司 | A kind of L1 environmental protection maintaining method in SPN based on FlexE |
| CN110417631B (en) * | 2019-07-22 | 2022-04-19 | 华信塞姆（成都）科技有限公司 | L1 ring protection method in SPN based on Flexe |
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Application publication date: 20091209 |