CN101159524B - Automatic protection rearrangement checking method and device - Google Patents
Automatic protection rearrangement checking method and device Download PDFInfo
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- CN101159524B CN101159524B CN2007101780693A CN200710178069A CN101159524B CN 101159524 B CN101159524 B CN 101159524B CN 2007101780693 A CN2007101780693 A CN 2007101780693A CN 200710178069 A CN200710178069 A CN 200710178069A CN 101159524 B CN101159524 B CN 101159524B
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Abstract
The invention relates to a method and a device for checking automatic protection switch, wherein the method comprises presetting a check period of the automatic protection switch; judging whether the check time comes based on the check period; and judging whether the actual state is consistent with the existent automatic protection switch state when the check time comes, correcting the automatic protection switch state upon inconsistency. The invention can efficiently keep the APS consistent with the actual state, improve the validity and reliability of protection on transmission links, enhance the toughness of APS, and increase the stability and reliability of BSC transmission.
Description
Technical field
The present invention relates to network communications technology field, particularly a kind of automatic protection rearrangement checking method and device.
Background technology
In order to ensure base station controller (Base Station Controller; Abbreviation BSC) reliability of communication link improves system-wide stability and maintainability, general APS (the Automatic Protection Switching that adopts in the prior art; Be called for short APS) the 1+1 protection switch function: transmit on (work) passage and the reception business datum main using; If master channel breaks down, BSC and transmission equipment are held consultation according to the APS agreement on alternate channel, switch to the passage that receives data on subsequent use (protection) passage; Alternate channel switched be upgraded to main usefulness, accomplish the 1+1 protection of transmission link and switch.APS protection switches mainly that (APS passes through K1 through light mouth alarm report incident and K byte; The K2 byte communicates, general designation K byte, wherein; K1 byte, K2 byte are general knowledge as well known to those skilled in the art; Each all has its specific implication in K1, the K2 byte, representes and switches relevant special byte) interrupt reported event and trigger, accomplish the protection of switching of primary and backup passage.
Existing APS 1+1 switches and is divided into two kinds:
1) switching of 1+1 single-ended mode: the processing procedure of unidirectional switching pattern does not need that to carry out the K byte mutual with the opposite end, only need judge according to the local terminal situation, and switch, and is indifferent to the opposite end situation.
2) switching of 1+1 both-end pattern, introduce the reversed process of both-end pattern below through Fig. 1:
Step is 1.: as shown in Figure 1, above the 1st and the 2nd optical cable be service aisle, below the 3rd and the 4th optical cable be the protection passage; Receiving terminal on the service aisle of A end; Be that the 2nd optical cable breaks down among Fig. 1, the A end sends K byte switching request at former active channel (the 1st optical cable) to the B end, and the APS controller (APS protocol process module) of A end gets into switch status; Receive path is switched to the protection passage, and promptly the 2nd undercut is changed to the 3rd optical cable;
Step is 2.: after the B termination is received the K byte, carry out the bridge joint of service aisle, switch to the protection passage of B → A, promptly change to the 3rd optical cable from the 2nd undercut, and send reverse request and hold to A;
Step is 3.: after the A termination is received the reverse request of B end, carry out bridge joint and switch, switch to the protection passage of A → B, promptly the 1st undercut is changed to the 4th optical cable, and returns switch status to B;
Step is 4.: the B termination receives to carry out after the switching request and switches that switch to the protection passage of A → B, the 1st undercut is changed to the 4th optical cable, accomplishes two-way switching.
Though through the APS protection mechanism communication link is protected automatically in the prior art, when the master channel fault, is automatically switched to alternate channel.But, there is following defective in the prior art at least:
Light mouth of the prior art alarm is through the timer inquiry, and the K byte reports through interrupt mode because the influence of message between different boards time delay might cause actual first event, after deliver to the APS controller and handle.Because the APS controller is the conversion according to the sequencing decision state of incoming event, possibly cause switch status and actual situation about occurring and inconsistent in the APS agreement thus, cause the protection on the transmission link to be lost efficacy.In addition, when carrying out board switchover, because the current mechanism of new master control borad can't guarantee in time the state of APS agreement synchronously, can cause the protocol status mistake, active and standby plate butt joint dislocation is so that the communication traffic on this link interrupts.
Summary of the invention
First aspect of the present invention provides a kind of automatic protection rearrangement checking method; State and virtual condition in order to solve APS agreement in the prior art are inconsistent; Possibly cause the problems such as protection inefficacy on the transmission link; Maintenance is consistent with virtual condition, improves validity and the reliability protected on the transmission link.
Second aspect of the present invention provides a kind of APS calibration equipment; In order to solve in the prior art APS controller and virtual condition inconsistent, cause the problems such as protection inefficacy on the transmission link; Realization is consistent with virtual condition; Improve validity and the reliability protected on the transmission link, strengthen the stability of APS protocol status.
In order to realize first aspect of the present invention, automatic protection rearrangement checking method of the present invention comprises:
The check-verifying period of preset APS;
Judge according to said check-verifying period whether checking time arrives;
When checking time arrives, judge that whether virtual condition is consistent with existing APS state, proofreaies and correct the APS state when inconsistent.
In order to realize second aspect of the present invention, APS calibration equipment of the present invention comprises:
Memory module is used to preserve the check-verifying period of preset APS;
Whether processing module is connected with memory module, be used for according to check-verifying period regular check virtual condition consistently with existing APS state, and when inconsistent, the APS state is proofreaied and correct.
Compared with prior art, whether the present invention is consistent with virtual condition through periodically making regular check on the APS state, if the alarm status of APS agreement changes or agreement request state transition, then the APS protocol status proofreaied and correct with virtual condition is inconsistent.The present invention can effectively keep the consistent of APS and virtual condition, improves validity and the reliability protected on the transmission link, strengthens the robustness of APS, improves the stability and the reliability of BSC transmission.
Through accompanying drawing and embodiment, technical scheme of the present invention is done further detailed description below.
Description of drawings
Fig. 1 switches sketch map for existing APS1+1 both-end pattern;
Fig. 2 is APS method of calibration embodiment one flow chart of the present invention;
Fig. 3 is APS method of calibration embodiment two flow charts of the present invention;
Fig. 4 resolves sketch map for APS method of calibration embodiment three of the present invention;
Fig. 5 resolves sketch map for APS method of calibration embodiment four of the present invention;
Fig. 6 is APS calibration equipment embodiment one sketch map of the present invention;
Fig. 7 is processing module internal structure sketch map in the APS calibration equipment of the present invention.
Embodiment
Referring to Fig. 2, be APS method of calibration embodiment one flow chart of the present invention.Present embodiment comprises:
Step 0001: utilize a timer that the check-verifying period of APS is set in advance; As: it is 10 seconds that check-verifying period is set;
Step 0010: when starting APS protocol communication mechanism, also start timer and carry out the timing verification;
Step 0002: according to the check-verifying period of timer, judging whether checking time arrives, is execution in step 0003 then, otherwise continues execution in step 0010;
Step 0003: judge whether APS state existing in virtual condition and the APS protocol process module is consistent, is then to finish, otherwise execution in step 0004;
Step 0004: when inconsistent, the APS state is proofreaied and correct.
In the above-mentioned steps 0003, concrete manageable project comprises the alarm of light mouth, K byte, single board state, device fault, optical interface processing unit (GSM Optical Interface Unit is called for short GOIU) plate activestandby state etc.
Whether present embodiment is periodically made regular check on the APS state consistent with virtual condition, if the state and the virtual condition of APS agreement are inconsistent, then the APS protocol status proofreaied and correct.Because transmission delay APS agreement and virtual condition occur when inconsistent, can cause the protection inefficacy on the transmission link in the prior art; When board switchover, cause the mistake of new mainboard protocol status.Present embodiment is through increasing the APS verification scheme, can effectively keep the consistent of APS state and virtual condition, improves validity and the reliability protected on the transmission link, strengthens the robustness of APS, improves stability and reliability that BSC transmits.
Referring to Fig. 3, be APS method of calibration embodiment two flow charts of the present invention.Present embodiment and Fig. 2 embodiment are similar, have all functions of Fig. 2 embodiment, and present embodiment is more concrete, and present embodiment comprises:
Step 0001: utilize a timer that the check-verifying period of APS is set in advance;
Step 0010: when starting the APS protocol, also start timer and carry out the timing verification;
Step 0002: according to the check-verifying period of timer, judging whether checking time arrives, is execution in step 0031 then, otherwise continues execution in step 0010;
Step 0031: judge GOIU plate upstate, the alarm of light mouth, receive K byte and APS processing module, whether consistent like the data of storing in the APS protocol process module, be then to finish, otherwise execution in step 0041;
Step 0041: send and proofread and correct event notification message announcement APS controller;
Step 0004: controller is proofreaied and correct the APS state.
In the present embodiment, the incident that needs treatment for correcting is given an example, carries out different notices to different correction incidents below and do and illustrate:
1) upstate of inspection GOIU plate; If the GOIU plate is that down state and APS protocol process module display channel state are for normal; Then send Signal Fail (Signal Fail is called for short SF) alarm, produce " SF_DETECTED " and proofread and correct event notification message; Incident is carried out alarm report, so that state is proofreaied and correct;
2) inspection GOIU plate hardware fault state, APS agreement display channel state then sends the SF alarm for normal if hardware fault is arranged, and produces " SF_DETECTED " and proofreaies and correct event notification message;
3) inspection GOIU plate light mouth warning information; APS protocol process module display channel state is for normal if the light mouth has alarm; Then send SF or Signal Degrade (Signal Degrade is called for short SD) alarm, produce " SF_DETECTED " or " SD_DETECTED " and proofread and correct event notification message;
4) inspection GOIU plate can be used, device fault-free, light mouth be with nowhere to turn to the police, but the APS protocol process module shows that there is SF/SD in this passage, then sends SF/SD alarm clearing " SF_CLEAR/SD_CLEAR " and proofreaies and correct event notification message;
Whether the K byte that 5) receives on the check protection passage is consistent with the K byte that the APS agreement is preserved, and the inconsistent K byte of then sending reports " K_REPORT " to proofread and correct event notification message;
6) whether the switch status of APS agreement is consistent with the activestandby state of GOIU plate in the inspection APS protocol process module, inconsistently then the GOIU plate switched.
The wherein generation of any inconsistent situation; All be through reporting corresponding APS processing messages again, APS protocol process module (APS controller) is handled this situation, has corrected the APS protocol message effectively and has had little time the incomplete problem of new mainboard protocol status handling or cause synchronously; Simultaneously; Can also write down the corresponding detailed log information of correction incident, supply the positioning problems analysis, can solve the fault of appearance fast.
Existing APS controller has three kinds of states: Idle state (IDLE), switch attitude (SWITCH) and Wait-to-Restore state (WTR): be in Idle state when not producing, detecting any bridge joint request as if current controller node; When controller node produces bridge joint request (comprise inner the generation automatically with outside receive), or when stopping a bridge joint request, this node is in switches attitude; When controller node is in when switching attitude, if detect SF, SD signal removal, or receive the K byte switching request that send the opposite end, or receive controller outside send switch clear command, then move to the Wait-to-Restore state.In the present embodiment, when virtual condition and APS state are inconsistent, can send in time, rapidly and proofread and correct event notification message; The APS state correction is come; As above-mentioned 4) in, after the transmission alarm clearing calibration message, can transfer the APS state to the Wait-to-Restore state from switch status; Above-mentioned 1), 2), 3), 5) and/or 6) in, originally APS is in normal condition, but actual detected is to unusual; After sending alarm information, can transfer normal condition to switch status, as early as possible handling failure; Avoid postponing the loss that brought, be consistent with virtual condition.
Referring to Fig. 4, for APS method of calibration embodiment three of the present invention resolves sketch map.Present embodiment is the processing of method of calibration of the present invention when specifically being applied to light mouth alarm and device switching among the APS and taking over:
Step 100: when starting APS or after having created the APS protocol, start timer, be preset with check-verifying period, after the GOIU plate went into operation, the APS adapter sent to the APS agency and starts request;
Step 200:APS carries out to facility registration and switches adapter, alarm reception after acting on behalf of and receiving that starting APS asks;
Step 300:APS agency of trademark registration finishes the back to APS adapter back response;
Step 400: alarm notification incident (HPI) produces or device switching request notice APS agency; Specifically can be the generation anomalous event information that equipment receives, also can be the warning information that is reported when inconsistent through verification scheme of the present invention detect and virtual condition;
Step 500:APS agency is to HPI event informations such as APS adapter transmitting apparatus switching request, correction event informations;
Step 600:APS adapter sends switching operation to the APS agency;
Step 700:APS agency carries out and switches or operation such as correction, if the incident of device external then need be sent the K byte to equipment, invocation facility is switched interface; When detecting device interior APS state and actual inconsistent situation, then the APS state is proofreaied and correct through verification scheme;
Step 800:APS acts on behalf of back the echoing to the APS adapter that be finished and answers message;
Step 900: when stopping the APS protocol, the APS adapter sends to the APS agency and stops request;
After step 1000:APS agency received and stops request, anti-adapter was switched in registration, alarm receives to equipment in execution;
Step 1100:APS agency is to APS adapter back response, and expression stops APS protocol communication mechanism.
The handling process of mouth alarm of present embodiment combination light and device switching interface when starting the APS protocol, starts verification timer, and the state with actual conditions is inquired about in timing, and inconsistent situation is carried out state correction.
Referring to Fig. 5, for APS method of calibration embodiment four of the present invention resolves sketch map.Present embodiment is that the processing that method of calibration specifically is applied to the outside K byte requests in the APS protocol reports, the processing when the K byte is sent in the outside:
After step 010～step 040 expression, APS controller (APS protocol process module) are carried out protocol processes to the K byte of sending, notice APS adapter, APS adapter notice APS agency, APS proxy call driving interface is outwards sent the K byte requests;
Step 050～step 090 expression, after the device drives interface received the K byte, driving interface can be called the K byte interrupt interface in the APS agreement automatically, and the APS agency reports the K byte to the APS adapter, and the APS adapter is to APS controller notice K byte requests.
Method of calibration of the present invention regularly detects the K byte, if the K byte that receives on K byte of in the APS controller, having preserved and the passage is inconsistent, then sends K byte reporting message and corrects.
Above-mentioned each embodiment is through increasing the agreement verification scheme; Strengthened the robustness of APS protocol protection switch function; Thereby improved the reliability and stability of BSC transmission link more, reduced the risk that communication service is interrupted, guaranteed primary channel effectively in real time; Nondestructively protection is switched, in the resolution protocol processing procedure owing to have little time the incomplete problem of protocol status that the synchronous protocol state causes.Above-mentioned only light mouth alarm, K byte being reported etc. is illustrated, but method of calibration according to the invention can also be applied to multiple butt joint scene, can bring huge support benefit.
Referring to Fig. 6, be calibration equipment embodiment one sketch map of the present invention.Present embodiment comprises:
Memory module is used to preserve the check-verifying period of preset APS; Memory module can also be used to store virtual condition and existing APS state detailed correction log information when inconsistent, is convenient to positioning analysis;
Whether processing module is connected with memory module, be used for according to check-verifying period regular check virtual condition consistently with existing APS state, and when inconsistent, the APS state is proofreaied and correct.
Fig. 7 is an APS calibration equipment processing module internal structure sketch map of the present invention.Present embodiment is to the further refinement of the processing module among Fig. 6 embodiment, and is as shown in Figure 7, and the present embodiment processing module comprises:
The timer submodule is used for carrying out the timing inquiry according to check-verifying period;
Judge submodule; Be connected with the timer submodule; Be used for when the timing arrives of timer submodule the actual upstate of inquiry optical interface processing unit, the alarm of light mouth and/or whether receive the data of storing in K byte and the APS protocol process module consistent;
The syndrome module is connected with judging submodule, is used for when virtual condition and existing APS state are inconsistent, the APS state being proofreaied and correct.
The present invention can have multiple multi-form embodiment; Be that example combines accompanying drawing that technical scheme of the present invention is illustrated with Fig. 1-Fig. 7 above; This does not also mean that the applied instantiation of the present invention can only be confined in certain embodiments flow process or the concrete structure; Those of ordinary skill in the art should understand; The specific embodiments that preceding text provided is some examples in the multiple its preferred usage, and any execution mode that in APS, has increased verification scheme all should be within technical scheme of the present invention scope required for protection.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be accomplished through the relevant hardware of program command; Aforesaid program can be stored in the computer read/write memory medium; This program the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
What should explain at last is: above embodiment is only in order to explaining technical scheme of the present invention, but not to its restriction; Although with reference to previous embodiment the present invention has been carried out detailed explanation, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these are revised or replacement, do not make the spirit and the scope of the essence disengaging various embodiments of the present invention technical scheme of relevant art scheme.
Claims (11)
1. an automatic protection rearrangement checking method is characterized in that, comprising:
The check-verifying period of preset APS;
Judge according to said check-verifying period whether checking time arrives;
When checking time arrives, judge whether APS state existing in virtual condition and the APS protocol process module is consistent, when inconsistent, the APS state proofreaied and correct.
2. automatic protection rearrangement checking method according to claim 1 is characterized in that, when inconsistent, also comprises: send inconsistent situation corresponding warning information.
3. automatic protection rearrangement checking method according to claim 1 is characterized in that, also comprises: corresponding log information proofreaied and correct in record.
4. automatic protection rearrangement checking method according to claim 1 is characterized in that, saidly judges APS state existing in virtual condition and the APS protocol process module consistent comprising whether:
Whether consistently detect actual upstate, the alarm of light mouth of optical interface processing unit and/or receive the data of storing in K byte and the APS protocol process module.
5. according to the arbitrary described automatic protection rearrangement checking method of claim 1-4, it is characterized in that, saidly judge APS state existing in virtual condition and the APS protocol process module consistent comprising whether:
If optical interface processing unit reality is unavailable, hardware fault takes place or have the light warning information, the data representation channel status of APS protocol process module storage is normal, judges that then APS state and virtual condition are inconsistent.
6. according to the arbitrary described automatic protection rearrangement checking method of claim 1-4, it is characterized in that, saidly judge that APS state existing in virtual condition and the APS protocol process module is whether consistent and also comprise:
If optical interface processing unit reality is available, hardware fault-free or No Light Alarm information, the data representation passage of APS protocol process module storage exists Signal Fail or Signal Degrade, judges that then APS state and virtual condition are inconsistent.
7. according to the arbitrary described automatic protection rearrangement checking method of claim 1-4, it is characterized in that, saidly judge that APS state existing in virtual condition and the APS protocol process module is whether consistent and also comprise:
Whether the K byte that receives on the inspection optical interface processing unit protection passage identical with the K byte that the APS protocol process module is stored, when inequality the APS state is set then and virtual condition inconsistent; Or
Inspection optical interface processing unit active and standby whether identical with the switch status of APS protocol process module with state, when inequality the APS state is set then and virtual condition inconsistent.
8. according to the arbitrary described automatic protection rearrangement checking method of claim 1-4, it is characterized in that said when inconsistent, the APS state correction comprises:
The APS state is set to the respective value consistent with virtual condition.
9. an APS calibration equipment is characterized in that, comprising:
Memory module is used to preserve the check-verifying period of preset APS;
Whether processing module is connected with memory module, be used for according to the existing APS state of check-verifying period regular check virtual condition and APS protocol process module consistently, and when inconsistent, the APS state is proofreaied and correct.
10. APS calibration equipment according to claim 9 is characterized in that, said processing module comprises:
The timer submodule is used for carrying out the timing inquiry according to check-verifying period;
Judge submodule, be connected, be used for when the timing arrives of timer submodule whether the actual upstate of inquiry optical interface processing unit, the alarm of light mouth and/or reception K byte be consistent with existing APS state with the timer submodule;
The syndrome module is connected with judging submodule, is used for when the existing data of virtual condition and APS protocol process module are inconsistent, the APS state being proofreaied and correct.
11. APS calibration equipment according to claim 10; It is characterized in that said memory module also is used for storing the correction log information when the existing APS state of virtual condition and APS protocol process module is inconsistent.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101780693A CN101159524B (en) | 2007-11-26 | 2007-11-26 | Automatic protection rearrangement checking method and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101780693A CN101159524B (en) | 2007-11-26 | 2007-11-26 | Automatic protection rearrangement checking method and device |
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| CN101159524A CN101159524A (en) | 2008-04-09 |
| CN101159524B true CN101159524B (en) | 2012-06-27 |
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| CN2007101780693A Expired - Fee Related CN101159524B (en) | 2007-11-26 | 2007-11-26 | Automatic protection rearrangement checking method and device |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101668358B (en) * | 2009-09-30 | 2012-06-06 | 中兴通讯股份有限公司 | Examining method of protection switching and device thereof |
| WO2012167490A1 (en) * | 2011-07-28 | 2012-12-13 | 华为技术有限公司 | Channel group protection method, system and node device |
| CN102386993B (en) * | 2011-10-24 | 2014-12-10 | 中兴通讯股份有限公司 | Protection switching method for optical transport networks and transport device |
| CN103246571B (en) * | 2012-02-10 | 2018-02-27 | 联想(北京)有限公司 | Control method and electronic equipment |
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|---|---|---|---|---|
| CN1295397A (en) * | 1999-11-04 | 2001-05-16 | 深圳市中兴通讯股份有限公司 | Automatically protected switching method and device in high rate SDH loop |
| CN1874612A (en) * | 2005-05-30 | 2006-12-06 | 中兴通讯股份有限公司 | SDII device, and method for protecting SDH service |
| CN1893332A (en) * | 2005-07-04 | 2007-01-10 | 中兴通讯股份有限公司 | Method and apparatus for shortening SDH multi-plexing segement protective rearranging time |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1295397A (en) * | 1999-11-04 | 2001-05-16 | 深圳市中兴通讯股份有限公司 | Automatically protected switching method and device in high rate SDH loop |
| CN1874612A (en) * | 2005-05-30 | 2006-12-06 | 中兴通讯股份有限公司 | SDII device, and method for protecting SDH service |
| CN1893332A (en) * | 2005-07-04 | 2007-01-10 | 中兴通讯股份有限公司 | Method and apparatus for shortening SDH multi-plexing segement protective rearranging time |
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