CN1306718C - A novel disk protection method - Google Patents
A novel disk protection method Download PDFInfo
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- CN1306718C CN1306718C CNB2004101017097A CN200410101709A CN1306718C CN 1306718 C CN1306718 C CN 1306718C CN B2004101017097 A CNB2004101017097 A CN B2004101017097A CN 200410101709 A CN200410101709 A CN 200410101709A CN 1306718 C CN1306718 C CN 1306718C
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- scratch diskette
- disc
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- interface disc
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Abstract
The present invention relates to a 1 to n working disk protection method realized by a terminal board, an interface disk and a cross disk terminal board. The method has the following procedures that whether the states of each working disk is normal is polled; when the states of the working disk are abnormally, whether the existing working disks are protected is judged, if the working disks are previously protected, the working disks are changed back; if a certain abnormally working disk is discovered in polling, whether the existing working disks are protected is judged, if the working disks are not previously protected, VC-4 (high-order virtual container) signals of the working disks sent to a cross disk is conveyed to a protection disk; whether the working state of the protection disk is normal is judged; if the working state of the protection disk is normal, changeover actions for protecting the working disks occur; else, the cross disk has no action, the process returns to the step of polling the states of the working disks. The protection method of the present invention causes the changeovers of the working disk to be reliable and fast, and effectively reduces the service fault rate of equipment; each changeover function and indexes of the system satisfy ITU-T recommended standard.
Description
Technical field
The present invention relates to a kind of interface disc guard method, more precisely, the present invention relates to the guard method of interface disc in synchronous digital transmission (SDH) system.
Background technology
Along with a large amount of commercializations of synchronous digital transmission (SDH) equipment, equipment operator has higher requirement to the quality of service of SDH system.Therefore the SDH network is except having multiplex section protection, path protection, and 1+1, self-healing functions such as 1:n route protection, as intersecting, clock has also been done 1+1 backup with the raising reliability to the manufacturer to the core of equipment itself.But in actual motion, if a certain service failure that the electrical interface dish breaks down and can cause equally joining with this dish in the system.Existing equipment generally can't be protected or protect with the volume of business of sacrificing just often the electrical interface dish; for example just often up and down the call business capacity be n VC-4 (higher order virtual container); take the work nest position owing to protective disc during protection; the call business capacity becomes n-1 VC-4 (higher order virtual container) up and down, therefore needs to propose a kind of guard method that does not take the electrical interface dish of system's cross-capacity.
Summary of the invention
The purpose of this invention is to provide a kind of interface disc guard method, this method is to 2Mb/s electrical interface dish, and it is a kind of rapid and reliable that 34M/45Mb/s electrical interface dish provides, and do not change the system interface ability, do not take the dish guard method of system's cross-capacity.
The invention provides the interface disc guard method of a kind of 1:n, when the 2Mb/s electrical interface dish of working in system, 34M/45Mb/s electrical interface dish break down and lost efficacy, the switching services of this dish is transmitted to protective disc, the value of n is 1～8.
The interface disc guard method of passing through the 1:n of terminal board, interface disc and the realization of Cross Trade terminal board provided by the invention; be 1 protection interface disc of interface disc configuration of n operate as normal; the interface disc of described operate as normal abbreviates scratch diskette as; described protection is called protective disc with interface disc, and this method may further comprise the steps:
Whether normal according to each piece scratch diskette state of network management configuration poll;
If each piece scratch diskette state is all normal, judge then whether existing scratch diskette is protected, if existing scratch diskette had before had protection, scratch diskette is backed in the protection of cancellation dish;
If find that in poll a certain scratch diskette is undesired, judge then whether existing scratch diskette is protected, if the previous unprotect of scratch diskette, the VC-4 signal that Cross Trade will send to this scratch diskette is sent to protective disc;
Judge whether this protective disc operating state is normal;
If this protective disc operating state is normal, the switching action of scratch diskette protection takes place, finish this protective disc protection operation; Otherwise Cross Trade is failure to actuate, and process turns back to the step of poll scratch diskette state.
The method according to this invention, the protective disc position is provided with separately, does not take the scratch diskette position; therefore the capacity of call business up and down of system still is n VC-4; do not change, protect route to pass through software setting simultaneously, system no matter is operated in normal condition or the guard mode cross-capacity is constant.Guard method of the present invention obtains following beneficial effect: (1) is not increasing on the basis of cost substantially, switches reliably rapidly, effectively reduces the traffic failure rate of equipment; (2) the every function of switching and the index of native system satisfy the ITU-T recommended standard fully.
Description of drawings
Signal flow schematic diagram when Fig. 1 is operate as normal;
Fig. 2 is the signal flow schematic diagram after protection takes place;
Fig. 3 is the operation principle block diagram of terminal board;
Fig. 4 is a protection control flow schematic diagram.
Embodiment
Elaborate below in conjunction with accompanying drawing and to coil guard method according to an embodiment of the invention.
The present invention needs terminal board, and interface disc and Cross Trade three cooperation are finished jointly.The interface disc of the interface disc of scratch diskette position and protective disc position abbreviates scratch diskette and protective disc respectively as.Terminal board is finished the balanced of service signal and is driven in system, and interface disc is finished the mapping between service signal and the VC-4 and gone mapping, n interface disc correspondence n terminal board, the interconnection of low-order and high-order signal is finished in Cross Trade.According to embodiments of the invention, the value of n is 1～8.
As shown in Figure 1, n interface disc for operate as normal disposes 1 interface disc that is used to protect.The operate as normal interface disc abbreviates scratch diskette as, and the interface disc that is used to protect abbreviates protective disc as.Signal flow is seen Fig. 1 during the scratch diskette operate as normal, on deliver to scratch diskette after talking about the terminal board equilibrium of service signal warp trackside of direction, be mapped to the Cross Trade of being sent to system side behind the VC-4.Under talk about this Cross Trade of direction the VC-4 signal be sent to scratch diskette, this signal is separated the mapping back and is driven away by terminal board.At this moment, the turnover invalidating signal of protective disc.
Signal flow after a certain scratch diskette is protected is seen Fig. 2, and the service signal of at this moment going up the words direction is through to being sent to protected scratch diskette and protective disc simultaneously after the terminal board equilibrium of piece scratch diskette, and the Cross Trade selection is from the signal of protective disc.Under talk about this Cross Trade of direction the VC-4 signal be sent to this scratch diskette and protective disc simultaneously, terminal board is selected to drive away from the signal of protective disc.The control signal that terminal board relies on Cross Trade to send here is finished the switching action in interface disc line side.
Fig. 3 is the operation principle block diagram of terminal board.TUSWTI is that the dish that Cross Trade is sent here is switched control signal, and each terminal board is all distinguished a corresponding TUSWTI (dish is switched control signal) independently.When TUSWTI=0, working properly, so scratch diskette do not switch, select signal at the sending direction terminal board from this scratch diskette, at receive direction signal is sent to scratch diskette.Because same bus of the signal common between each terminal board and the protective disc, so the signal that the terminal board of not switching needs to be sent to protective disc is changed to high-impedance state.When TUSWTI=1, scratch diskette is switched, and at the signal of sending direction terminal board selection from this protective disc, at receive direction signal is sent to scratch diskette and protective disc simultaneously.
Interface disc needs whether normal state is informed Cross Trade with the work of this dish.Each interface disc groove position comprises scratch diskette groove position and protective disc groove position, and each groove position respectively has an alarm line to be connected to Cross Trade by backboard.
If satisfying following all conditions can think that interface disc is working properly, alarm line keeps low level.
The service port that is using in the interface disc down the words direction have at least one the road normal.
2. power supply and clock are normal in the interface disc.
3. interface disc is received network management configuration.
If following arbitrary situation occurs, then think the interface disc operation irregularity, the alarm line level becomes height.
1. do not have interface disc on the groove position, the alarm line level of this groove position is drawn high in Cross Trade.
2. alarm all appears interrupting in the words direction under the service port that is using in the interface disc.
3. abnormity of power supply or clock interrupt in the interface disc.
4. interface disc is not received network management configuration.
Above listed criterion can be taken the circumstances into consideration increase and decrease according to actual needs.Cross Trade realizes the control of whole protecting process and the protection of docking port disc system side.The protected priority in branch road scratch diskette position reduces from left to right successively, when promptly polylith branch road dish breaks down simultaneously, and the keep left branch road dish on limit of priority protection dish position.
Fig. 4 is the flow chart of whole protecting process of the scratch diskette guard method of a kind of 1:n, and n is 1-8.The scratch diskette that needs protection can pass through the webmaster flexible configuration.Whether normal according to this each piece scratch diskette state of configuration poll, if all normal, judge then whether existing scratch diskette is protected; if existing scratch diskette had before had protection; can back scratch diskette immediately, promptly the cancellation dish is protected, and turns back to the step of poll scratch diskette state.Can after appearring in lasting detection a period of time, alarm not refund again to increase reliability yet.Find that in poll a certain scratch diskette is undesired, judge then whether existing scratch diskette is protected, if previous no scratch diskette protection, the at first tentative VC-4 signal that will send to this scratch diskette of Cross Trade is sent to protective disc, judges then whether the protective disc operating state is normal, judges promptly whether words direction service port is normal down, if protective disc is not alarmed then TUSWTI is changed to height, change interconnection, finish protection, the switching action of scratch diskette protection promptly takes place; Otherwise Cross Trade is failure to actuate, and process turns back to the step of poll scratch diskette state.If interface disc is not judged article one in the normal condition and the second in the abnormal conditions, then above-mentioned exploratory process can directly be skipped.Find that in poll a certain scratch diskette B is undesired, and before existing scratch diskette A is when protected, if the switching action of scratch diskette B protection does not then take place scratch diskette A priority ratio scratch diskette B height; Otherwise the switching action of protection scratch diskette B takes place.
The protection of Cross Trade docking port disc system side is finished by the routing configuration in the single-chip microcomputer real time modifying cross chips.Just often the signal of talking about up and down of scratch diskette links to each other with source end from group road dish with the Su Duan that is sent to group road dish respectively by cross matrix.The words signal of going up that the words signal replaces scratch diskette of going up of switching the back protective disc links to each other with the place end, and the source end signal while links to each other with the following words signal of scratch diskette and protective disc, cooperates with terminal board like this to have finished service signal and transmit on protective disc.
The present invention is applied in the SDH equipment of 2.488G bandwidth, with mouthful defencive function of dish that achieves a butt joint.Dish guard method of the present invention also is applicable to the protection of the circuit working in other field.
Embodiments of the invention and accompanying drawing only are illustrative, protection scope of the present invention are not construed as limiting, and protection scope of the present invention is limited by the accompanying claims.
Claims (4)
1. interface disc guard method by the 1:n of terminal board, interface disc and the realization of Cross Trade terminal board; be 1 protection interface disc of interface disc configuration of n operate as normal; the interface disc of described operate as normal abbreviates scratch diskette as; described protection is called protective disc with interface disc, and this method may further comprise the steps:
Whether normal according to each piece scratch diskette state of network management configuration poll;
If each piece scratch diskette state is all normal, judge then whether existing scratch diskette is protected, if existing scratch diskette had before had protection, scratch diskette is backed in the protection of cancellation dish;
If find that in poll a certain scratch diskette is undesired, judge then whether existing scratch diskette is protected, if the previous unprotect of scratch diskette, the higher order virtual container signal that Cross Trade will send to this scratch diskette is sent to protective disc; When if the judgment task dish had before been protected, the priority of failure judgement scratch diskette also, if judged result is lower than the scratch diskette of having protected for this priority, the switching action of scratch diskette protection does not then take place, if judged result is higher than the scratch diskette of having protected for this priority, then enters the higher order virtual container signal that Cross Trade will send to this scratch diskette and be sent to protective disc and step subsequently;
Judge whether this protective disc operating state is normal;
If this protective disc operating state is normal, the switching action of scratch diskette protection takes place, finish this protective disc protection operation; Otherwise Cross Trade is failure to actuate, and process turns back to the step of poll scratch diskette state.
2. according to the interface disc guard method of the 1:n of claim 1, the switching action of wherein said scratch diskette protection is to be finished by the control signal that terminal board relies on Cross Trade to send here.
3. according to the interface disc guard method of the 1:n of claim 1, whether normal step comprises the following abnormal state of judging described scratch diskette to each piece scratch diskette state of wherein said poll: groove does not have interface disc on the position; Alarm all appears interrupting in the service port that is using in interface disc words direction down; Abnormity of power supply or clock interrupt in the interface disc; Interface disc is not received network management configuration; One of above-mentioned four kinds of states occur, and then the judgment task dish is in abnormal state.
4. according to the interface disc guard method of the 1:n of claim 1, whether normal step comprises the following normal condition of judging each piece scratch diskette to each piece scratch diskette state of wherein said poll: interface disc is working properly, alarm line maintenance low level; The service port that is using in the interface disc down words direction has at least one the road normal; Power supply and clock are normal in the interface disc; Interface disc is received network management configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004101017097A CN1306718C (en) | 2004-12-23 | 2004-12-23 | A novel disk protection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004101017097A CN1306718C (en) | 2004-12-23 | 2004-12-23 | A novel disk protection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1622485A CN1622485A (en) | 2005-06-01 |
| CN1306718C true CN1306718C (en) | 2007-03-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004101017097A Expired - Fee Related CN1306718C (en) | 2004-12-23 | 2004-12-23 | A novel disk protection method |
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| Country | Link |
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| CN (1) | CN1306718C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101026426B (en) * | 2007-01-16 | 2011-07-13 | 烽火通信科技股份有限公司 | Tributary interface device and method for protecting slot flexible configuration |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1519736A (en) * | 2003-01-24 | 2004-08-11 | 华为技术有限公司 | Magnetic disk storage system |
| CN1521629A (en) * | 2003-01-29 | 2004-08-18 | 纬创资通股份有限公司 | Real time processing method for data in external memory module |
-
2004
- 2004-12-23 CN CNB2004101017097A patent/CN1306718C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1519736A (en) * | 2003-01-24 | 2004-08-11 | 华为技术有限公司 | Magnetic disk storage system |
| CN1521629A (en) * | 2003-01-29 | 2004-08-18 | 纬创资通股份有限公司 | Real time processing method for data in external memory module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1622485A (en) | 2005-06-01 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Guangzhou beacon Communication Technology Co., Ltd. Assignor: Fenghuo Communication Science &. Technology Co., Ltd. Contract fulfillment period: 2007.4.1 to 2012.3.31 contract change Contract record no.: 2009420010006 Denomination of invention: A novel disk protection method Granted publication date: 20070321 License type: Exclusive license Record date: 2009.3.28 |
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| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2007.4.1 TO 2012.3.31; CHANGE OF CONTRACT Name of requester: GUANGZHOU FENGHUO COMMUNICATION SCIENCE CO., LTD. Effective date: 20090328 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070321 Termination date: 20161223 |
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| CF01 | Termination of patent right due to non-payment of annual fee |