CN101159524A - Automatic protection rearrangement checking method and device - Google Patents
Automatic protection rearrangement checking method and device Download PDFInfo
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- CN101159524A CN101159524A CNA2007101780693A CN200710178069A CN101159524A CN 101159524 A CN101159524 A CN 101159524A CN A2007101780693 A CNA2007101780693 A CN A2007101780693A CN 200710178069 A CN200710178069 A CN 200710178069A CN 101159524 A CN101159524 A CN 101159524A
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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; improve 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; the passage that receives data is switched on standby (protection) passage; alternate channel switched be upgraded to main usefulness, finish the 1+1 protection of transmission link and switch.APS protection switches mainly that (APS passes through K1 by 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, represents and switches relevant special byte) interrupt reported event and trigger, finish 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 by 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 enters 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, finishes two-way switching.
Though by 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 by the timer inquiry, and the K byte reports by 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, may 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; inconsistent in order to the state and the virtual condition that solve APS agreement in the prior art; may 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 default APS;
Judge according to described 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 default 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 by 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.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Fig. 1 switches schematic diagram 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 schematic diagram for APS method of calibration embodiment three of the present invention;
Fig. 5 resolves schematic diagram for APS method of calibration embodiment four of the present invention;
Fig. 6 is APS calibration equipment embodiment one schematic diagram of the present invention;
Fig. 7 is processing module internal structure schematic diagram 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 to set in advance the check-verifying period of APS; 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 by 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 to set in advance the check-verifying period of APS;
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 as 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 at 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, be 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) check 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) check 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) check that can there be SF/SD in the GOIU plate but the APS protocol process module shows this passage with, device fault-free, light mouth with nowhere to turn to the police, then sends SF/SD alarm clearing " SF_CLEAR/SD_CLEAR " and proofreaies and correct event notification message;
5) whether the K byte that receives on the check protection passage is consistent with the K byte of APS agreement preservation, and the inconsistent K byte that then sends reports " K_REPORT " to proofread and correct event notification message;
6) check whether the switch status of APS agreement in the APS protocol process module is consistent with the activestandby state of GOIU plate, inconsistently then the GOIU plate is switched.
The wherein generation of any inconsistent situation, all be by reporting corresponding APS processing messages again, APS protocol process module (APS controller) is handled this situation, corrected effectively that the APS protocol message has little time to handle or the problem of the new mainboard protocol status incompleteness that causes synchronously, simultaneously, the detailed log information of correction incident correspondence can also be write down,, the fault of appearance can be solved fast for the positioning problems analysis.
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 (comprising inner the generation automatically and outside receiving), 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 the opposite end sends, 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 is proofreaied and correct 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 schematic diagram.Present embodiment is the processing of method of calibration of the present invention when specifically being applied to light mouth alarm among the APS and device switching 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 by 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 needs to send 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 by 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.
Present embodiment when starting the APS protocol, starts verification timer in conjunction with the handling process of alarm of light mouth and device switching interface, 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 schematic diagram.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 outside sends the K byte:
After step 010～step 040 expression, APS controller (APS protocol process module) are carried out protocol processes to the K byte that sends, notice APS adapter, APS adapter notice APS agency, APS proxy call driving interface outwards sends 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 having preserved in the APS controller and the passage is inconsistent, then sends K byte reporting message and corrects.
The various embodiments described above are by increasing the agreement verification scheme; strengthened the robustness of APS protocol protection switch function; thereby the reliability and stability of BSC transmission link have been improved more; reduced the risk that communication service is interrupted; guarantee primary channel effectively in real time; nondestructively protection is switched, in the resolution protocol processing procedure owing to have little time the problem of the protocol status incompleteness that the synchronous protocol state causes.Above-mentioned only light mouth alarm, K byte being reported etc. is illustrated, but method of calibration of the present invention can also be applied to multiple butt joint scene, can bring huge support benefit.
Referring to Fig. 6, be calibration equipment embodiment one schematic diagram of the present invention.Present embodiment comprises:
Memory module is used to preserve the check-verifying period of default 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 schematic diagram of the present invention.Present embodiment is to the further refinement of the processing module among Fig. 6 embodiment, and as shown in Figure 7, 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 of timer submodule arrives 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 illustrates technical scheme of the present invention in conjunction with the accompanying drawings 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; above the specific embodiments that is provided is some examples in the multiple its preferred usage, and any execution mode that has increased verification scheme in APS all should be within technical solution 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 finished by the relevant hardware of program command, aforesaid program can be stored in the computer read/write memory medium, this program is carried out 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.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, 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 modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (11)
1. an automatic protection rearrangement checking method is characterized in that, comprising:
The check-verifying period of default APS;
Judge according to described 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.
2. automatic protection rearrangement checking method according to claim 1 is characterized in that, also comprises when inconsistent: 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, describedly judges virtual condition and existing APS state 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, describedly judge virtual condition and existing APS state 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, describedly judge that virtual condition and existing APS state be 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, describedly judge that virtual condition and existing APS state be whether consistent and also comprise:
Check whether the K byte that the K byte that receives on the optical interface processing unit protection passage and APS protocol process module store identical, when inequality the APS state is set then and virtual condition inconsistent; Or
Check the active and standby whether identical with the switch status of APS protocol process module of optical interface processing unit 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 described 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 default 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.
10. APS calibration equipment according to claim 9 is characterized in that, described 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 of timer submodule arrives, 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 virtual condition and existing data are inconsistent the APS state being proofreaied and correct.
11. APS calibration equipment according to claim 10 is characterized in that, described memory module also is used to store the correction log information when virtual condition and existing APS state are 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 true CN101159524A (en) | 2008-04-09 |
| CN101159524B 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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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102318273A (en) * | 2011-07-28 | 2012-01-11 | 华为技术有限公司 | A kind of channel group guard method and system, node device |
| 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 |
| WO2013060130A1 (en) * | 2011-10-24 | 2013-05-02 | 中兴通讯股份有限公司 | Optical transport network protection switching method and transport device |
| CN103246571A (en) * | 2012-02-10 | 2013-08-14 | 联想(北京)有限公司 | Control method and electronic equipment |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1126331C (en) * | 1999-11-04 | 2003-10-29 | 深圳市中兴通讯股份有限公司 | Automatically protected switching method and device in high rate SDH loop |
| CN100562179C (en) * | 2005-05-30 | 2009-11-18 | 中兴通讯股份有限公司 | A kind of SDH equipment and SDH service protecting method thereof |
| CN1893332B (en) * | 2005-07-04 | 2010-09-08 | 中兴通讯股份有限公司 | Method and apparatus for shortening SDH multi-plexing segment protective rearranging time |
-
2007
- 2007-11-26 CN CN2007101780693A patent/CN101159524B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102318273A (en) * | 2011-07-28 | 2012-01-11 | 华为技术有限公司 | A kind of channel group guard method and system, node device |
| CN102318273B (en) * | 2011-07-28 | 2013-12-18 | 华为技术有限公司 | Channel group protection method and system, node device |
| WO2013060130A1 (en) * | 2011-10-24 | 2013-05-02 | 中兴通讯股份有限公司 | Optical transport network protection switching method and transport device |
| CN103246571A (en) * | 2012-02-10 | 2013-08-14 | 联想(北京)有限公司 | Control method and electronic equipment |
| 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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|---|---|
| CN101159524B (en) | 2012-06-27 |
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