CN101179367B - Transmission network universal switch analytical method based on switch factor relativity analysis - Google Patents
Transmission network universal switch analytical method based on switch factor relativity analysis Download PDFInfo
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Abstract
The invention relates to a method for analyzing general rearranging of transmission network based on relativity analysis of rearranging factors. The method includes the following steps: A. when the network element generates rearranging massages, all the rearranging factors generated recently are obtained to form a collection of factors to be analyzed. B. the rearranging factors resulted from StepA are filtrated according to time relativity. C. the rearranging factors resulted from Step B are filtrated according to space relativity. D. the rearranging factors resulted from Step C are filtrated according to business relativity and the unprotected rearranging factors in business are eliminated. E. the derivative factors and rearranging massages resulted from Step D are eliminated. F. the entity that generates root factors and that resulted from E is located on the object tree. G. the rearranging direction, the rearranging reason and the business view after rearranging are analyzed according to the protection type and the ending time of the rearranging factors. The method of the invention can, without considering equipment types, realize unified analysis of rearranging features and present the whole business rearranging view as well as the fault reasons that cause rearranging.
Description
Technical field
The present invention relates to the switch status universaling analysis method in a kind of transmission network category, or rather, the present invention relates to based on the general analytical method of switching of the transmission network of switching the factor correlation analysis.
Background technology
Business refers to carry the passage of user profile in the transmission network field, comprises the 2M circuit, VC4 passage etc.Two kinds of mechanism have been defined in order to improve transmission network availability ITU-T, protection and recovery.Wherein, protected mode is when traffic failure, and the transmission entity that utilizes the standby resources of reserving to replace generation fault or initiation performance degradation is realized.Switch and refer to mainly to comprise the resource switch that produces fault to standby resources, switch back the master from standby resources after in the return type network, also having comprised fault restoration to use resource with the change action between resource and the standby resources.Can produce switching messages during general device generation switching action, when switching messages takes place, mean that the path of professional process changes in the network, also mean to occur hidden danger in the network.
Telecom operators need provide the business with price advantage and service quality-advantage for the client in order to win in intense market competition, require the various faults of reply transmission network fast.Switching is one of focus wherein.Reason has three:
1) out of order switching on the business that occurs in protection, generally protecting business all is corresponding VIP client, in case switch, means working channels generation catastrophe failure, needs in time to handle.
2) out of order switching when taking place, the professional credit rating of protection drops to unshielded business, will cause service disconnection or error code in case alternate channel is bad, will face economic loss, needs to pay close attention to the alternate channel state this moment.
3) trouble-free switching means that fault gets rid of, and Service recovery, this moment the Business Stream warp be working channels, need focus to change.
The switch messages that present transmission network equipment supplier can provide generally dependence equipment provides, and analytic function seldom.The switching messages that equipment provides is based on the distributed information of network element, conclusion is got up, can be divided into 4 levels according to switching orientable minimum particle size (the most detailed origination point of switching that promptly can discern), network element/single-deck/physical port/high-order CTP/2M, its characteristic and quality are compared as follows:
| Switch the location minimum particle size | Device characteristics | Advantage | Shortcoming |
| Switching messages navigates to network element | No matter there are how many professional switching that a switching messages only is provided in this network element | 1. high 2. size of messages of message informing efficient are rare is beneficial to attendant reaction | 1. be unfavorable for judging which business influenced 2. is unfavorable for analyzing the fault that initiation is switched, prolonged and switched the processing time.3. being not suitable for MSP (multiplex section protection) and SNCP (path protection) 4. is not suitable for analyzing and switches reason. |
| Switch the location minimum particle size | Device characteristics | Advantage | Shortcoming |
| Switching messages navigates to single-deck | Each group road dish of switching provides a switching messages | 1. size of message is second few, helps attendant's fast reaction.2. message informing efficient is higher. | 1. to judge professional affected scope well with respect to first kind of situation.2. but the port of a professional dish and the TP number in the port are still many, be unfavorable for analyzing switching reason.3. relatively be fit to MSP, be not suitable for analyzing and switch reason but be not suitable for MSP 4.. |
| Switching messages navigates to physical port | Each PTP that switches (physics destination node) provides a switching messages | 1. size of message is that the 3rd few 2. message informing efficient are higher.3. be applicable to that MSP switches analysis | 1. being not suitable for channel switching 2. is not suitable for analyzing and switches reason. |
| Switching messages navigates to high-order | Each high-order TP that switches provides a switching messages | 1. can analyze MSP and high-order SNC P | 1. size of message is more, and the attendant is flooded by information easily.2. message informing efficient is lower, and single-deck is handled slow.3. be not suitable for analyzing than the 4.th for the analysis supporting dynamics of rudimentary switching services and switch reason. |
| Switching messages navigates to 2M's | Each business of switching all reports a switching messages in this network element | 1. switching of position more accurate 2. suitable various protected modes switched in reflection | 1. size of message is too big.Be unfavorable for what the attendant found really will to be concerned about from various message.2. the treatment effeciency of single-deck is the slowest. |
To sum up state analysis, current various analytical methods all depend on equipment, and which kind of mode all can not obtain good balance between message number and the transmission equipment operational efficiency in the location granularity.It is as follows to trace it to its cause:
1) key property of equipment is in real time (switch generally is unit with the millisecond), the high-quality business of no error code rather than analytic function, and analytic function does not also require real-time (can with minute be unit).
2) equipment is distributed, and the business information between network element is transparent to single-deck, and analytic function need be considered ring network structure and end-to-end passage, and switching the path and switching reason of whole service just can be provided.
3) message that reports of equipment is that first priority is paid close attention to, if granularity navigates to 2M, then in case switch and cause numerous switching messages, the message that can flood other can not in time be paid close attention to the guardian.
4) operational capability of equipment is limited.
Therefore to sum up analyze, depending on the starting point itself that device analysis switches has born defective.And system master point can have very high concentrated operational capability according to configuration is different, and the facility that has the whole network view simultaneously has the basis of analysis.But it is exactly how to unify to handle the characteristic that various device varies that the master control point faces a born problem, has property difference (2.5G for example, 622 between the diverse equipment, WDM, 10G etc.), even kind equipment of the same race is because designer's difference also can cause switching messages there are differences.
Summary of the invention
It is a kind of based on the general analytical method of switching of the transmission network of switching the factor correlation analysis that the object of the invention is to provide, the type of this method and apparatus is irrelevant, can unify to analyze it and switch characteristic, provide professional the whole network simultaneously and switch the failure cause that view and initiation are switched.
The present invention is directed to above-mentioned existing deficiency of switching analysis mechanisms and defective and provide a kind of based on master control point, switch analytical method, mainly solve following three big problems with device type has nothing to do:
1) solves the born deficiency that existing dependence equipment is switched analysis,, average out between message number and the transmission equipment operational efficiency in the location granularity.Realize that minimum location granularity is the 2M time slot, can support multiplex section protection, the switch status analysis of path protection protection type.(not containing the recovery pattern) with reference to the definition of ITU-T about protection and recovery
2) provide professional the whole network to switch view, provide and cause the failure reason analysis result who switches.
3) failure cause of switching is caused in the whole network location, and the direction of switching of the whole network business is provided.
In order to solve the equipment diversity difficult problem of master control point, and existing method do not have and switches the whole network and analyze view and can not analyze the shortcoming of switching reason, the invention provides a kind of general analytical method of switching.This method is that a kind of type of and equipment is irrelevant, with protected mode irrelevant (protected mode that does not contain recovery), can unify to analyze the method that it switches characteristic, provides professional the whole network simultaneously and switches the failure cause that view and initiation are switched.And the minimum particle size that can locate for path protection is 2M, and what can locate for multiplex section protection is the physics mouth, can analyze the fault point, the network element internal fault reason and the professional current flow direction.This method is applicable to multiplex section protection and path protection.
Its basic principle is the most of uncorrelated factor of switching of correlation processing filtration of utilizing the factor of switching and switching incident, and utilize the transmission network object tree (entity that refers to resource in the transmission network, because inter-entity exists set membership and inclusion relation, therefore formed network of personal connections, abbreviate object tree as) obtain the root factor, and draw according to the entity that this factor takes place and to switch direction, switch granularity and switch reason.
The factor of switching is represented the state of transmission equipment, comprises that root is switched factor and the factor of switching of deriving (abbreviating the root factor respectively as and the factor of deriving).Direct fault or performance that the root factor of switching guides sending service to switch, fiber break for example, laser failure etc.What the factor of deriving referred to that all resources of the business process that the root factor causes produce switches relevant factor with this, for example remote bug announcement etc.
Switch granularity and refer to switch the minimum material that can navigate to after the analysis on the object tree, comprise network element/single-deck/physical port/CTP.
Switch the possible cause that reason is meant that the root factor takes place.
Be defined as follows abbreviation:
E: incident concluding time
B: Time To Event
S: the time of switching (generation time of switching messages comprises the switching action of refunding after fault disappears)
A1: forward direction temporal correlation threshold value (factor of switching occurs to the time of causing between the device switching action)
A2: the back is to temporal correlation threshold value (switching action begins to switch time between the factor to initiation)
WTR: Wait to Restore Time (definition is with reference to the ITU-T suggestion, and fault begins to carry out the time of refunding between the action to equipment after disappearing, by the equipment setting)
G.803 the information model that the present invention is based on meets ITU-T, TMF814,608,513Version 2.1 standards.
The general analytical method of switching of a kind of transmission network based on correlation analysis of the present invention specifically may further comprise the steps,
A obtain network element generation switching messages taking place at no distant date constantly all switch factor, form set of factors to be analyzed;
B filters the factor of switching to the result that steps A produces according to temporal correlation;
C filters the factor of switching to the result that step B produces according to spatial coherence;
D filters the factor of switching to the result that step C produces according to professional correlation, rejects the factor of not protecting on business of switching.Generation is switched the entity of factor if physical port, check then whether the CTP (destination point) under this physical port and this physical port has protection, if all not then reject and originally to switch factor, if CTP (destination point) mouth then check through this CTP (destination point) and down all sub-CTP (destination point) whether protection is arranged, if all not then reject the factor of originally switching;
E rejects derive factor and switching messages to the result that step D produces;
The result that F produces step e orients the entity that produces the root factor on object tree;
G analyzes according to protection type and the concluding time of switching factor and switches direction, switches reason and switches the back service view.
Wherein, the factor of obtaining in the steps A of switching comprises: B--time of origin, E--concluding time, the positional information on object tree, the title of factor and the possible cause of priming factors.
Wherein, step B may further comprise the steps:
Not real-time if B1 switches, promptly switch Indication message and from buffer area, obtain, then do not revise the content of message, if real-time messages, the time of then revising message according to message content;
If the concluding time of B2 switching messages is invalid, just the factor of switching in the set of factors to be analyzed is rejected Non-Compliance according to ((S-A1)＜B＜(S+A2)) rule, and the E that switches factor can not be sky, otherwise, just the factor of switching in the set of factors to be analyzed is rejected Non-Compliance according to ((S-A1-WTR)＜E＜(S+A2)) rule, wherein, S represents time of switching, the E presentation of events concluding time, A1 represents forward direction temporal correlation threshold value, A2 represents the back to the temporal correlation threshold value, and WTR represents Wait to Restore Time.
Wherein, step B1 may further comprise the steps: if switch Indication message sign be switch end will be made as the concluding time identical with time of origin, if switch the Indication message sign be switch taken place will be made as the concluding time invalid.
Wherein, step C may further comprise the steps:
C1 will switch factor according to the hardware entities grouping that takes place according to the positional information of switching factor, and the factor of switching that same hardware entities produces is divided into one group in buffer area;
C2 filters out the factor of switching that sub-hardware entities produces, and has father and son's inclusion relation between the hardware of the factor of switching, and then the factor of switching that involved sub-hardware entities is taken place is rejected in buffer area;
The factor of switching that C3 produces for same hardware entities, speed level according to the factor of switching is rejected the higher factor of switching of level, wherein, the speed hierarchical relationship is: physical layer＜optical transport layer＜optical multiplex layer＜optical channel layer＜light data cell layer＜regenerator section layer＜multiplex section＜higher order path＜rudimentary channel layer, also provide the speed hierarchical information if switch Indication message, then, weed out the switch factor higher than the speed level of switching Indication message according to above-mentioned ordering relation.
Wherein, step e may further comprise the steps:
E1 rejects the factor of switching that subobject produces according to the inclusion relation of the entity that the factor of switching produces;
If the E2 factor of switching is created on the CTP (destination point), then according to intersecting data, only keep the debit to the factor of switching that produces of the group corresponding CTP in crossing (destination point);
If the E3 factor of switching is created on the PTP (physics destination node),, only keep the factor of switching of main port direction then according to PG (protection group) data.
Wherein, step F may further comprise the steps:
F1 judges protection type and the concrete entity of switching.
Wherein, step F 1 comprises:
If switch generation through judgement, then execution in step is F.1.1:
If F.1.1.1 1+1 multiplex section protection type forwards to, if F.1.1.2 1:n protection type forwards to; If F.1.1.3 2 fiber complex sections protection type then forwards to, if the path protection execution is F.1.1.4, wherein,
F.1.1.1: the physical port of switching factor is as working port W; in the port list of forming PG (protection group), search protection port P; then switching direction is that working port W swings to protection port P, and when providing service route figure, the connection of this network element optical fiber outlet is protection port P.And at protection port P record protection object one working port W;
F.1.1.2: the physical port of switching factor is as working port W, in the port list of forming PG (protection group), search protection port P, if protection port P record protection object is empty, then switching direction is that working port W swings to protection port P, and when providing service route figure, the connection of this network element optical fiber outlet is protection port P;
F.1.1.3: find the corresponding PTP (physics destination node) of the PTP (physics destination node) of the factor of switching in PG (protection group) group, PTP (physics destination node) the first half time slot of switching direction and being fault is switched to back half time slot of corresponding port;
F.1.1.4: the CTP (destination point) that switches factor searches the CTP (destination point) in the debit Xiang Qun crossing as work CTP (destination point) in intersection information, traffic direction is switched on the protection time slot at debit Xiang Qun crossing.
Wherein, step F 1 comprises:
If switch disappearance, then carry out following steps through judgement:
Service returning is to main usefulness after the fault restoration, and flow process is with F.1.1 identical, but switches direction with F.1.1 opposite.
The superiority of technical solution of the present invention is
1) provides a kind of type irrelevant, can utilize the unified method of switching characteristic of analyzing of alarm with equipment.The human cost and the program complexity that cause for the difference of analyzing various device have been reduced.
2) utilize the high operational capability of master control point and the whole network view information of webmaster to remedy the existing defective of switching analysis that depends on equipment, can be in the location granularity, obtain good balance between message number and the transmission equipment operational efficiency, make equipment be absorbed in quick and high-quality business the aspect is provided.
3) do not remedied the defective that the whole network fault can not be provided based on the having professional the whole network view of device analysis and switch direction.
Description of drawings
Fig. 1: general steps figure;
Fig. 2: temporal correlation analysis process figure;
Fig. 3: spatial Correlation Analysis flow chart;
Fig. 4: professional correlation analysis flow chart;
Fig. 5: switch status analysis process figure.
Embodiment
In order to describe the present invention more clearly, provide embodiment so that the present invention is described further below in conjunction with accompanying drawing.
One of purpose of the present invention is that a solution master control point compass of competency device type diversity difficult problem and existing method do not have the shortcoming of switching the whole network analysis view and switching reason.The description of invention does not relate to the particular type of equipment and only provides a kind of general analytical method of switching at the general rule of the factor of switching.
Its basic principle is the most of uncorrelated factor of switching of general correlation processing filtration of utilizing the factor of switching and switching incident, and utilize the transmission network object tree (entity that refers to resource in the transmission network, because inter-entity exists set membership and inclusion relation, therefore formed network of personal connections, abbreviate object tree as) obtain the root factor and draw switching direction according to the entity that this factor takes place, switch granularity and switch reason.
Referring to Fig. 1 general steps, among the present invention general correlation mainly from tripartite surface analysis, the firstth, temporal correlation, according to test data, temporal correlation can filter out the 90% irrelevant factor of switching.The secondth, spatial coherence; mainly be the feature of entity on the speed level, for example the factor of switching of channel layer can not cause the multiplex section layer, and the 3rd is professional correlation; mainly get rid of same group of business and switched simultaneously under the factor affecting situation, do not had the business situation of not switching of protection.These three kinds of correlations are irrelevant with concrete device type, can the Gneral analysis switch status.Therefore can be used as NMS and EMS analysis transmission network and switch data.
The present invention is refined as alarm with the factor of switching, and every alarm comprises time of origin (B), concluding time (E), the positional information on object tree, the title of factor and the possible cause of priming factors, and wherein E is sky when alarm does not disappear.
The present invention will be defined as 3 days in the recent period, and the alarm separate, stored that has finished in the recent period is to accelerate retrieval rate.
The present invention is referenced to the multiplex section rearrangement time and is no more than 50ms, the general switching time of passage is in level second, take all factors into consideration the asynchronous problem of life period between master control point and the distributed apparatus (deviation is no more than a second level after during general school), and according to 1 fen MSP_A1 (10S) of test data forward direction temporal correlation threshold value A and SNCP_A1 (30S), A2: the back is defined as 10S to the temporal correlation threshold value.
Step (1) is collected the switching messages that needs analysis, and obtains all alarms that take place at no distant date constantly of network element generation switching messages, forms set of factors to be analyzed.
Step (2) is filtered the factor of switching to the result that step 1 produces according to temporal correlation.Referring to Fig. 2 temporal correlation analysis process, specifically comprise the steps:
Step (2.1) is promptly switched Indication message and is obtained from buffer area if switch and be not real-time, does not then revise the content of message.If real-time messages, the time of then revising message according to message content.
Wherein, step (2.1) comprising: if switch Indication message sign be switch end will be made as the concluding time identical with time of origin, if switch the Indication message sign be switch taken place will be made as the concluding time invalid.
Step (2.2) if the concluding time of switching messages invalid (being that transmission equipment is switched) forward step 2.2.1 to, otherwise forward step 2.2.2 to.
Step (2.2.1) is rejected Non-Compliance to the factor of switching in the set of factors to be analyzed according to ((S-A1)＜B＜(S+A2)) rule, and the E that switches factor can not be sky.
The concluding time of step (2.2.2) switching messages is not invalid, the expression switch finish or current be to refund action.Then the factor of switching in the set of factors to be analyzed is rejected Non-Compliance according to ((S-A1-WTR)＜E＜(S+A2)) rule.
Step (3) is filtered the factor of switching to the result that step 2 produces according to spatial coherence.Referring to Fig. 3 spatial Correlation Analysis flow process, it specifically comprises the steps:
Step (3.1) will be switched factor according to the hardware entities grouping that takes place according to the positional information of switching factor.The factor of switching that same hardware entities produces is divided into one group in buffer area;
Step (3.2) filters out the factor of switching that sub-hardware entities produces.Promptly have father and son's inclusion relation between the hardware of switching factor, then the factor of switching that involved sub-hardware entities is taken place is rejected in buffer area;
The factor of switching that step (3.3) produces for same hardware entities is according to the higher factor of switching of LayerRate (speed level) rejecting level of the factor of switching.The speed hierarchical relationship is: physical layer＜OTS＜OMS＜OCH＜ODU＜regenerator section layer＜multiplex section＜higher order path＜rudimentary channel layer (with reference to ITU-T G.805 about the definition of speed level).Also provide LayerRate information if switch Indication message,, weeded out than the LayerRate height of switching Indication message and switch factor then according to above-mentioned ordering relation.
Step (4) is filtered the factor of switching to the result that step 3 produces according to professional correlation, rejects the factor of not protecting on business of switching.Generation is switched the entity of factor if physical port then carries out 4.1, if CTP (destination point) mouthful is carried out 4.2.
Step (4.1) check this physical port and its down all CTP (destination point) whether protection is arranged, if all not then reject the factor of originally switching.
Step (4.2) check this CTP (destination point) and its down all sub-CTP (destination point) whether protection is arranged, if all not then reject the factor of originally switching.
Step (5) is rejected derive factor and switching messages to the result that step 4 produces, and this step comprises:
Step (5.1) is rejected the factor of switching that subobject produces according to the inclusion relation of the entity that the factor of switching produces.
Step (5.2) is if the factor of switching is created on the CTP (destination point), then according to intersecting data, only keep the debit to the factor of switching that produces of the group corresponding CTP in crossing (destination point).
Step (5.3) then according to PG (protection group) data, only keeps the factor of switching of main port direction if the factor of switching is created on the PTP (physics destination node).The professional correlation analysis flow process of step (4) and (5) is referring to Fig. 4.
The result that step (6) produces step 5 orients the entity that produces the root factor on object tree.
Step (7) is analyzed according to protection type and the concluding time of switching factor and is switched direction, switches reason and switches the back service view.Switch analysis process referring to Fig. 5.
Step (7.1) is judged protection type and the concrete entity of switching.Take place to carry out 7.1.1 if switch, carry out 7.1.2 if switch to disappear.
The method of judging is as follows:
(a) if the entity of switching is PTP (a physics destination node); and PTP (physics destination node) is contained in PG (protection group) group; multiplex section protection has then taken place, otherwise path protection (method of discrimination is seen step 4.1) has taken place in the CTP that protection is arranged (destination point) that PTP (physics destination node) is comprised.The CTP that protection is arranged (destination point) of PG wherein (protection group) group or termination is recorded as the entity of switching.
(b) be CTP (destination point) as sporocarp, path protection has taken place in the sub-CTP (destination point) that protection is arranged that then CTP (destination point) comprises, if CTP (destination point) itself be have intersect process path protection has taken place in itself.The CTP that protection is arranged (destination point) of termination wherein is recorded as the entity of switching.
Step (7.1.1) is if 1+1 multiplex section protection type forwards 7.1.1.1 to, if 1:n protection type forwards 7.1.1.2 to; If 2 fiber complex sections protection type then forwards 7.1.1.3 to, if path protection is carried out 7.1.1.4.
Step (7.1.1.1) is switched the physical port of factor as working port (abbreviating working port W as); in the port list of forming PG (protection group), search protection port (abbreviating protection port P as); then switching direction is that working port W swings to protection port P; and when providing service route figure, the connection of this network element optical fiber outlet is protection port P.And at protection port P record protection object-working port W.
Step (7.1.1.2) is switched the physical port of factor as working port (abbreviating working port W as); in the port list of forming PG (protection group), search protection port (abbreviating protection port P as); if protection port P record protection object is empty; then switching direction is that working port W swings to protection port P; and when providing service route figure, the connection of this network element optical fiber outlet is protection port P.Otherwise execution in step 7.1.1.2.1.
Step (7.1.1.2.1) is if the protection strategy of PG (protection group) group can not be seized, and the service disconnection of then drawing is switched failure.If can seize, then switching direction is that working port W swings to protection port P, and when providing service route figure, the connection of this network element optical fiber outlet is protection port P.And the business setting of original object of protection process for interrupting.
Step (7.1.1.3) finds the corresponding PTP (physics destination node) of the PTP (physics destination node) of the factor of switching in PG (protection group) group, PTP (physics destination node) the first half time slot of switching direction and being fault is switched down back half time slot of corresponding port.
Step (7.1.1.4) is switched the CTP (destination point) of factor as work CTP (destination point), searches the CTP (destination point) in the debit Xiang Qun crossing in intersection information, and traffic direction is switched on the protection time slot at debit Xiang Qun crossing.
Service returning is to main usefulness after step (7.1.2) fault restoration, and flow process is identical with 7.1, and it is just opposite with 7.1 just to switch direction.What describe is the releasing of the factor of switching, and replys the equipment of mode and uses to getting back to the master from standby.
If 1+1 multiplex section protection type forwards 7.1.2.1 to, if 1:n protection type forwards 7.1.2.2 to; If 2 fiber complex sections protection type then forwards 7.1.2.3 to, if path protection is carried out 7.1.2.4.
The physical port that step (7.1.2.1) factor of switching disappears is as working port (abbreviating working port W as); searching work port in the port list of forming PG (protection group) (abbreviating protection port P as); then switching direction is that protection port P swings to working port W; and when providing service route figure, the connection of this network element optical fiber outlet is working port W.And remove and protect port P record protection object.
The physical port that step (7.1.2.2) factor of switching disappears is as working port W; in the port list of forming PG (protection group), search protection port P; switching direction is that protection port P swings to working port W; and when providing service route figure, the connection of this network element optical fiber outlet is working port W.
Step (7.1.2.3) finds the corresponding PTP (physics destination node) of the PTP (physics destination node) that switches the factor factor in PG (protection group) group, switch direction and be back half time slot that PTP (physics destination node) the first half time slot that fault is repaired is switched down corresponding port.
The CTP (destination point) that step (7.1.2.4) factor of switching disappears searches the CTP (destination point) in the debit Xiang Qun crossing as work CTP (destination point) in intersection information, switching services is to receive direction group crossing.
Step (8) is drawn the transmission network current business and is flowed to figure.
Claims (6)
1. one kind based on the general analytical method of switching of the transmission network of switching the factor correlation analysis, may further comprise the steps:
A, obtain network element generation switching messages taking place at no distant date constantly all switch factor, form set of factors to be analyzed;
B, the result that steps A is produced filter the factor of switching according to temporal correlation;
C, the result that step B is produced filter the factor of switching according to spatial coherence;
D, the result that step C is produced filter the factor of switching according to professional correlation, the factor of switching that rejecting is not protected on business, generation is switched the entity of factor if physical port, whether the intersection of then checking this physical port and this physical port of process has protection, if all not then reject and originally to switch factor, if the destination point mouth is then checked the intersection through this destination point whether protection is arranged, if all not then reject the factor of originally switching;
E, the result that step D is produced reject derive factor and switching messages;
F, the result that step e is produced orient the entity that produces the root factor on object tree;
G, analyze according to protection type and concluding time of switching factor and to switch direction, switch reason and switch the back service view,
Wherein, step B comprises:
Not real-time if B1 switches, promptly switch Indication message and from buffer area, obtain, then do not revise the content of message, if real-time messages, the time of then revising message according to message content;
If the concluding time of B2 switching messages is invalid, just the factor of switching in the set of factors to be analyzed is rejected Non-Compliance according to ((S-A1)＜B＜(S+A2)) rule, and the E that switches factor can not be sky, otherwise, just the factor of switching in the set of factors to be analyzed is rejected Non-Compliance according to ((S-A1-WTR)＜E＜(S+A2)) rule, wherein, S represents time of switching, the E presentation of events concluding time, A1 represents forward direction temporal correlation threshold value, A2 represents the back to the temporal correlation threshold value, and WTR represents Wait to Restore Time
Step C comprises:
C1 will switch factor according to the hardware entities grouping that takes place according to the positional information of switching factor, and the factor of switching that same hardware entities produces is divided into one group in buffer area;
C2 filters out the factor of switching that sub-hardware entities produces, and has father and son's inclusion relation between the hardware of the factor of switching, and then the factor of switching that involved sub-hardware entities is taken place is rejected in buffer area;
The factor of switching that C3 produces for same hardware entities, speed level according to the factor of switching is rejected the higher factor of switching of level, wherein, the speed hierarchical relationship is: physical layer＜optical transport layer＜optical multiplex layer＜optical channel layer＜light data cell layer＜regenerator section layer＜multiplex section＜higher order path＜rudimentary channel layer, also provide the speed hierarchical information if switch Indication message, then, weed out the switch factor higher than the speed level of switching Indication message according to above-mentioned ordering relation
Step e comprises:
E1 rejects the factor of switching that subobject produces according to the inclusion relation of the entity that the factor of switching produces;
If the E2 factor of switching is created on the destination point, then according to intersecting data, only keep the debit to the factor of switching that produces of the corresponding destination point in group crossing;
If the E3 factor of switching is created on the physics destination node,, only keep the factor of switching of main port direction then according to protection group data.
2. the method for claim 1, wherein the factor of obtaining in the steps A of switching comprises: B--time of origin, E--concluding time, the positional information on object tree, the title of factor and the possible cause of priming factors.
3. the method for claim 1, wherein step B1 may further comprise the steps: if switch Indication message sign be switch end will be made as the concluding time identical with time of origin, if switch the Indication message sign be switch taken place will be made as the concluding time invalid.
4. the method for claim 1, wherein step F may further comprise the steps:
F1 judges protection type and the concrete entity of switching.
5. method as claimed in claim 4, wherein, step F 1 comprises:
If switch generation through judgement, then execution in step is F.1.1:
If F.1.1.1 1+1 multiplex section protection type forwards to, if F.1.1.2 1:n protection type forwards to; If F.1.1.3 2 fiber complex sections protection type then forwards to, if the path protection execution is F.1.1.4, wherein,
F.1.1.1: the physical port of switching factor is as working port W, in the port list of forming the protection group, search protection port P, then switching direction is that working port W swings to protection port P, and when providing service route figure, the connection outlet of this network element optical fiber is protection port P, and at protection port P record protection object-working port W;
F.1.1.2: the physical port of switching factor is as working port W, in the port list of forming the protection group, search protection port P, if protection port P record protection object is empty, then switching direction is that working port W swings to protection port P, and when providing service route figure, the connection of this network element optical fiber outlet is protection port P;
F.1.1.3: find the corresponding physics destination node of the physics destination node of the factor of switching in protection group group, physics destination node the first half time slot of switching direction and being fault is switched to back half time slot of corresponding port;
F.1.1.4: the destination point of switching factor is searched the destination point in the debit Xiang Qun crossing as the work destination point in intersection information, traffic direction is switched on the protection time slot at debit Xiang Qun crossing.
6. method as claimed in claim 5, wherein, step F 1 comprises:
If switch disappearance, then carry out following steps through judgement:
Service returning is to main usefulness after the fault restoration, and flow process is with F.1.1 identical, but switches direction with F.1.1 opposite.
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| CN101360013B (en) * | 2008-09-25 | 2011-05-04 | 烽火通信科技股份有限公司 | General fast fault locating method for transmission network based on correlativity analysis |
| CN104753717B (en) * | 2013-12-30 | 2018-12-21 | 深圳键桥通讯技术股份有限公司 | The method for improving pretection switch testing efficiency |
| CN109818795B (en) * | 2019-01-31 | 2022-02-15 | 烽火通信科技股份有限公司 | Fault analysis method and system for intelligent service dynamic switching |
| CN110266516A (en) * | 2019-05-20 | 2019-09-20 | 国网山东省电力公司临沂供电公司 | EMS system network channel statistics and troubleshooting tools |
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| US6373383B1 (en) * | 1995-03-29 | 2002-04-16 | Aprisma Management Technologies, Inc. | Method and apparatus for policy-based alarm notification in a distributed network management environment |
| CN1505284A (en) * | 2002-12-02 | 2004-06-16 | 深圳市中兴通讯股份有限公司 | A distributed fault-locating method in a total optical network |
| CN1633082A (en) * | 2004-12-21 | 2005-06-29 | 中国联合通信有限公司 | A method and apparatus for fault location in communication network |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6373383B1 (en) * | 1995-03-29 | 2002-04-16 | Aprisma Management Technologies, Inc. | Method and apparatus for policy-based alarm notification in a distributed network management environment |
| CN1505284A (en) * | 2002-12-02 | 2004-06-16 | 深圳市中兴通讯股份有限公司 | A distributed fault-locating method in a total optical network |
| CN1633082A (en) * | 2004-12-21 | 2005-06-29 | 中国联合通信有限公司 | A method and apparatus for fault location in communication network |
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