CN101908931B - The method and system of protection switching of optical transmission equipment - Google Patents
The method and system of protection switching of optical transmission equipment Download PDFInfo
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- CN101908931B CN101908931B CN201010256260.7A CN201010256260A CN101908931B CN 101908931 B CN101908931 B CN 101908931B CN 201010256260 A CN201010256260 A CN 201010256260A CN 101908931 B CN101908931 B CN 101908931B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/03—Arrangements for fault recovery
- H04B10/032—Arrangements for fault recovery using working and protection systems
Abstract
The invention discloses a kind of method and system of protection switching of optical transmission equipment.The method comprises: the either end in low order interlace algorithm baffle and high order cross plate, after configuration protection business completes, sends to opposite end and switches ready signal; Either end in low order interlace algorithm baffle and high order cross plate after configuration protection business completes, receive from opposite end switch ready signal time, the protection business of its configuration enable.In the present invention; by communicating mutually between low order interlace algorithm baffle and high order cross plate; thus learn the configuration status of the other side; after the other side's configuration status completes; the protection business of enable configuration; thus solve due to high order cross plate and the switching action of low order interlace algorithm baffle inconsistent, cause the problem of business hit, and then reach the beneficial effect improving communication system stability.
Description
Technical field
The present invention relates to communications industry optical communication field, in particular to a kind of method and system of protection switching of optical transmission equipment.
Background technology
Along with the progress of society, the requirement of people to communication reliability is more and more higher, due to equipment fault cause communication traffic interrupt for a long time becoming be difficult to accept.Service board is SDH (Synchronous Digital Hierarchy) (Synchronous Digital Hierarchy, be called for short SDH)/synchronous optical network (Synchronous Optical Networking, be called for short SONET) basic element of character of/optical transport hierarchy (OpticalTransport Hierarchy, be called for short OTH).
Break down in order to avoid veneer and cause the professional chief time to be interrupted, in communication apparatus, carrying out the protection of plate level to service board is a kind of very effective, common safeguard measure, mainly comprises the protection of 1+1 plate level and the protection of 1:N plate level.Wherein, the protection of 1+1 plate level is employing one block protection single-chip protection one piece of service board, and protection veneer is identical with the configuration of service board; The protection of 1:N plate level is employing one block protection single-chip protection N block service board, and after switching, protection veneer is identical with the configuration of the service board broken down.At present, the method reducing 1:N switchover at the board level service outage duration is mainly increase and switches excitation information, such as, switch as switching excitation information triggering by increasing contact point state-detection, thus shorten 1:N working cell switching time.
Increase switches the method for excitation information in high-capacity transmission equipment; the protection veneer processing mass data information is needed for some; such as low order interlace algorithm plate; database etc.; in generation 1:N pretection switch process; high order cross plate and low order interlace algorithm baffle deal with data amount are different, and the time of low order interlace algorithm baffle configuration service is greater than the time of high order cross plate configuration service.Realizing in process of the present invention, inventor recognizes that prior art exists following defect: because high order cross plate is different with low order interlace algorithm baffle deal with data amount and cause switching action inconsistent, thus causes business to produce hit.
Summary of the invention
Main purpose of the present invention is the method and system providing a kind of protection switching of optical transmission equipment, with solve above-mentioned due to high order cross plate and the switching action of low order interlace algorithm baffle inconsistent, cause the problem of business hit.
According to an aspect of the present invention, provide a kind of method of protection switching of optical transmission equipment, comprising: the either end in low order interlace algorithm baffle and high order cross plate, after configuration protection business completes, sends to opposite end and switches ready signal; Either end in low order interlace algorithm baffle and high order cross plate after configuration protection business completes, receive from opposite end switch ready signal time, the protection business of its configuration enable.
Preferably; in the technical program; the enable business that it configures of either end in low order interlace algorithm baffle and high order cross plate comprises: receive in the threshold time of the either end in low order interlace algorithm baffle and high order cross plate after configuration protection business completes and switch ready signal, the protection business of its configuration enable from opposite end.
Preferably, in the technical program, do not receive in the Preset Time of the either end in low order interlace algorithm baffle and high order cross plate after configuration protection business completes and switch ready signal from opposite end; Method also comprises: the either end in low order interlace algorithm baffle and high order cross plate after configuration protection business completes, after threshold time arrives, the business of its configuration enable.
Preferably, in the technical program, for low order interlace algorithm baffle, the maximum duration of threshold time needed for high order cross plate configuration service is arranged; For high order cross plate, the maximum duration of threshold time needed for low order interlace algorithm baffle configuration service is arranged.
According to a further aspect in the invention, provide a kind of system of protection switching of optical transmission equipment, comprise high order cross plate, 1:N pretection switch group, 1:N pretection switch group comprises the low order interlace algorithm plate of low order interlace algorithm baffle and the protection of its needs, and high order cross plate is connected by connection with 1:N pretection switch group, low order interlace algorithm baffle, for after receiving the signal triggering and switch, carry out switching business configuration, complete after switching business configuration, send first to high order cross plate and switch ready signal; And when receive that high order cross plate sends second switches ready signal, enablely switch business; High order cross plate, for after receiving the signal triggering and switch, carries out cross business configuration, after completing cross business configuration, sends second switch ready signal to low order interlace algorithm baffle; And when receive the transmission of low order interlace algorithm baffle first switches ready signal, enable cross business.
Preferably, in the technical program, low order interlace algorithm baffle, for complete in the first threshold time after switching business configuration receive second switch ready signal time, enablely switch business, otherwise, when the first threshold time arrives, enablely switch business.
The present invention adopts high order cross plate and baffle to wait for the method for the progress that the other side configures respectively; solve due to high order cross plate and the switching action of low order interlace algorithm baffle inconsistent; cause the problem of business hit, and then reach the beneficial effect improving communication system stability.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart according to the inventive method embodiment one protection switching of optical transmission equipment method;
Fig. 2 is the flow chart according to the inventive method embodiment three protection switching of optical transmission equipment method;
Fig. 3 is the flow chart according to the inventive method embodiment four protection switching of optical transmission equipment method;
Fig. 4 is the flow chart according to the inventive method embodiment five protection switching of optical transmission equipment method;
Fig. 5 is the schematic diagram of system according to the invention embodiment one protection switching of optical transmission equipment system.
Embodiment
Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
Embodiment of the method one:
Fig. 1 is the flow chart according to the inventive method embodiment one protection switching of optical transmission equipment method.As shown in Figure 1, the present embodiment comprises:
Step S102, the one end in low order interlace algorithm baffle and high order cross plate, after configuration protection business completes, sends to opposite end and switches ready signal;
Step S104, the one end in low order interlace algorithm baffle and high order cross plate after configuration service completes, receive from opposite end switch ready signal time, the protection business of its configuration enable.
For low order interlace algorithm baffle, protection business is the business of switching; For high order cross plate, protection business is cross business.In the present embodiment; by communicating mutually between low order interlace algorithm baffle and high order cross plate; thus learn the configuration status of the other side; after the other side's configuration status completes; the protection business of enable configuration; thus solve due to high order cross plate and the switching action of low order interlace algorithm baffle inconsistent, cause the problem of business hit, and then reach the beneficial effect improving communication system stability.
Embodiment of the method two:
The present embodiment, by the basis of embodiment of the method one, arranges threshold time at high order cross plate and low order interlace algorithm baffle, after this threshold time arrives, and high order cross plate and low order interlace algorithm baffle starting protection business voluntarily.
Specifically, ready signal is switched from opposite end, the enable protection business that it configures in one end in low order interlace algorithm baffle and high order cross plate if received in the threshold time of the one end in low order interlace algorithm baffle and high order cross plate after configuration protection business completes; Ready signal is switched from opposite end if do not received in the Preset Time of the one end in low order interlace algorithm baffle and high order cross plate after configuration protection business completes; one end in low order interlace algorithm baffle and high order cross plate is after configuration protection business completes; after threshold time arrives, the business of its configuration enable.
Wherein, threshold time can be arranged in low order interlace algorithm baffle side separately, also can arrange at high order cross plate separately.Preferably, arrange respective threshold time respectively at low order interlace algorithm baffle and high order cross plate, for low order interlace algorithm baffle, the maximum duration of threshold time needed for high order cross plate configuration service is arranged; For high order cross plate; The maximum duration of threshold time needed for low order interlace algorithm baffle configuration service is arranged.
The present embodiment by the pre-determined threshold time, thus avoids low order interlace algorithm baffle and the unconfined wait of high order cross plate, thus further saves the time.
Embodiment of the method three:
The present embodiment will be described from low order interlace algorithm baffle side protection switching of optical transmission equipment method.Fig. 2 is the flow chart according to the inventive method embodiment three protection switching of optical transmission equipment method.As shown in Figure 2, the present embodiment comprises:
Step S202, low order interlace algorithm baffle carries out switching business configuration after receiving the signal triggering and switch;
Step S204, after low order interlace algorithm baffle completes and switches business configuration, sends first to high order cross plate and switches ready signal;
Step S206, if receive in the first threshold time that high order cross plate sent after cross business has configured second switches ready signal, low order interlace algorithm baffle is enable switches business; Otherwise low order interlace algorithm baffle is enable voluntarily switches business.
In the present embodiment, the maximum duration that the first threshold time carries out cross business configuration according to high order cross plate is arranged.
In the present embodiment; owing to having waited for the first threshold time; ensure that high order cross plate has time enough to carry out cross business configuration; solve due to high order cross plate and the switching action of low order interlace algorithm baffle inconsistent; cause the problem of business hit, and then reach the beneficial effect improving communication system stability.
Embodiment of the method four:
The present embodiment will be described from high order cross plate side protection switching of optical transmission equipment method.Fig. 3 is the flow chart according to the inventive method embodiment four protection switching of optical transmission equipment method.As shown in Figure 3, the present embodiment comprises:
Step S302, high order cross plate carries out cross business configuration after receiving the signal triggering and switch;
Step S304, after high order cross baffle completes cross business configuration, sends second to low order interlace algorithm baffle and switches ready signal;
Step S306, if receive in the second threshold time low order interlace algorithm baffle switch send after business configuration completes first switch ready signal, the enable cross business of high order cross plate; Otherwise high order cross plate is enable cross business voluntarily.
In the present embodiment, the maximum duration that the second threshold time carries out switching business configuration according to low order interlace algorithm baffle is arranged.In the present embodiment; owing to having waited for the second threshold time; ensure that low order interlace algorithm baffle has time enough to carry out switching business configuration; solve due to high order cross plate and the switching action of low order interlace algorithm baffle inconsistent; cause the problem of business hit, and then reach the beneficial effect improving communication system stability.
Embodiment of the method five:
Fig. 4 is the flow chart according to the inventive method embodiment five protection switching of optical transmission equipment method.As shown in Figure 4, the present embodiment comprises:
Step S402, when switching generation, high order cross buttress, according to pretection switch agreement, configures cross business;
Step S404, when switching generation, low order interlace algorithm baffle is according to protected low order interlace algorithm working plate data, and configuration switches business, because low order interlace algorithm baffle needs to process more data message, so this step spended time is relatively long;
Step S406, after the configuration of high order cross plate finishing service, sends second to low order interlace algorithm baffle and switches ready signal, now high order cross plate finishing service configuration, but owing to not performing page turning (unblock) action, the enable closedown of business, business configuration Pending The Entry Into Force;
Step S408, after the configuration of low order interlace algorithm baffle finishing service, sends first to high order cross plate and switches ready signal, now low order interlace algorithm baffle finishing service configuration, but owing to not performing page turning (unblock) action, the enable closedown of business;
Step S410, what high order cross plate wait low order interlace algorithm baffle sent switches ready signal (namely first switching ready signal), if high order cross plate receives first of low order interlace algorithm baffle transmission and switches ready signal in the second threshold time T2, then go to step S414; Otherwise go to step S418;
Wherein, the second threshold time T2, when can protect the maximum data message of veneer process according to low order interlace algorithm, the shared time is arranged, such as, it is 10 seconds that low order interlace algorithm baffle configures the time required for business, then the threshold time of high order cross plate can be set to 10 seconds;
Step S412, low order interlace algorithm baffle waits for " switching ready signal " that high order cross plate sends; If low order interlace algorithm baffle receives " second switches ready signal " that high order cross plate sends in the first threshold time T1, then go to step 4316; Otherwise go to step S420;
Wherein, the first threshold time T1, during data message maximum according to the process of high order cross plate, the shared time is arranged, and such as, required for the full business of high order cross plate configuration, the time is 5 seconds, then the threshold time of low order interlace algorithm baffle can be set to 5 seconds;
Step S414, after high order cross plate receives " second switches ready signal " of low order interlace algorithm baffle transmission, open business enable, namely perform page turning (unblock) action, the business that step S402 is configured comes into force, and performs step S422;
Step S416, after low order interlace algorithm baffle receives " first switches ready signal " of high order cross plate transmission, open business enable, namely perform page turning (unblock) action, the business that step S404 is configured comes into force, and performs step S424;
Step S418, wait action of " switching ready signal " jumped out by high order cross plate, and open business enable, namely perform page turning (unblock) action, the business that step S302 is configured comes into force, and performs step S422;
Step S420, wait action of " switching ready signal " jumped out by low order interlace algorithm baffle, and open business enable, namely perform page turning (unblock) action, the business that step S404 is configured comes into force, and performs step S424;
Step S422, high order cross plate removes " switching ready signal ";
Step S424, low order interlace algorithm baffle removes " switching ready signal ".
In the present embodiment, the timing of the first threshold time and the first threshold time normally receives order from corresponding board software and issues, and to board software, register is completed to the time difference of configuration.Because the situation of veneer each run is very complicated, the length of each finishing service setup time is also different, and therefore, the precise requirements of timing is not very strict.First threshold time, can from low order interlace algorithm baffle configuration switch business timing; Second threshold time, can timing from high order cross plate configuration cross business.For simplicity, the first threshold time and the second threshold time can be set to identical.Preferably, the first threshold time can carry out the maximum duration setting of cross business configuration according to high order cross plate; The maximum duration that second threshold time carries out switching business configuration according to low order interlace algorithm baffle is arranged.
In the present embodiment; wait for that " switching ready signal " limits the time of implementation of step S414 and step S416; simultaneously; the time of carrying out Signal transmissions between high order cross plate and low order interlace algorithm baffle can be similar to be ignored; both respective " configuring the enable time " can reach well synchronous in theory, thus the good service outage duration controlling to cause owing to there is 1:N switchover at the board level.
System embodiment one:
Fig. 5 is the schematic diagram of system according to the invention embodiment one protection switching of optical transmission equipment system.As shown in Figure 5, the present embodiment protection switching of optical transmission equipment system comprises: high order cross plate, 1:N pretection switch group.1:N pretection switch group comprises the low order interlace algorithm plate of low order interlace algorithm baffle and the protection of its needs, and high order cross plate is connected by connection with 1:N pretection switch group.
In the present embodiment, low order interlace algorithm baffle, for after receiving the signal triggering and switch, carries out switching business configuration, completes after switching business configuration, sends first switch ready signal to high order cross plate; And when receive that high order cross plate sends second switches ready signal, enablely switch business;
High order cross plate, for after receiving the signal triggering and switch, carries out cross business configuration, after completing cross business configuration, sends second switch ready signal to low order interlace algorithm baffle; And when receive the transmission of low order interlace algorithm baffle first switches ready signal, enable cross business.
The method that the present embodiment realizes can the related description of reference method embodiment one to five, and has the beneficial effect of above-described embodiment, no longer repeats herein.
System embodiment two:
The present embodiment, by the basis of system embodiment two, increases the restriction to threshold time, thus under guarantee high order cross plate and low order interlace algorithm baffle complete the prerequisite of configuration, saves time as much as possible, ensures the normal operation of system.
In the present embodiment, low order interlace algorithm baffle, for after completing and switching business configuration, and receives second when switching ready signal in the first threshold time, enablely switches business, otherwise when the first threshold time arrives, and enablely switches business.Wherein, the maximum duration that the first threshold time carries out cross business configuration according to high order cross plate is arranged.
In the present embodiment, high order cross plate, for after completing cross business configuration, and receives first when switching ready signal, enable cross business in the second threshold time, otherwise when the second threshold time arrives, enable cross business.The maximum duration that second threshold time carries out switching business configuration according to low order interlace algorithm baffle is arranged.
In the present embodiment; owing to having waited for the threshold time preset; ensure that low order interlace algorithm baffle and high order cross plate have time enough to carry out switching business configuration; solve due to high order cross plate and the switching action of low order interlace algorithm baffle inconsistent; cause the problem of business hit, and then reach the beneficial effect improving communication system stability.
The method that the present embodiment realizes can the related description of reference method embodiment one to five, and has whole beneficial effects of above-described embodiment, no longer repeats herein.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, and in some cases, step shown or described by can performing with the order be different from herein, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. a method for protection switching of optical transmission equipment, is characterized in that, comprising:
Either end in low order interlace algorithm baffle and high order cross plate, after configuration protection business completes, sends to opposite end and switches ready signal;
Either end in described low order interlace algorithm baffle and high order cross plate after configuration protection business completes, receive from opposite end switch ready signal time, the protection business of its configuration enable; Wherein,
The enable business that it configures of either end in described low order interlace algorithm baffle and high order cross plate comprises:
Receive in the threshold time of either end in described low order interlace algorithm baffle and high order cross plate after configuration protection business completes and switch ready signal, the protection business of its configuration enable from opposite end.
2. method according to claim 1, is characterized in that, does not receive to switch ready signal from opposite end in the described threshold time of the either end in described low order interlace algorithm baffle and high order cross plate after configuration protection business completes; Described method also comprises:
Either end in described low order interlace algorithm baffle and high order cross plate after configuration protection business completes, after described threshold time arrives, the business of its configuration enable.
3. method according to claim 1 and 2, is characterized in that,
For described low order interlace algorithm baffle, the maximum duration of described threshold time needed for described high order cross plate configuration service is arranged;
For described high order cross plate, the maximum duration of described threshold time needed for described low order interlace algorithm baffle configuration service is arranged.
4. method according to claim 3, is characterized in that, for described low order interlace algorithm baffle, described protection business is the business of switching; For described high order cross plate, described protection business is cross business.
5. the system of a protection switching of optical transmission equipment; it is characterized in that, comprise high order cross plate, 1:N pretection switch group, described 1:N pretection switch group comprises the low order interlace algorithm plate of low order interlace algorithm baffle and the protection of its needs; described high order cross plate is connected by connection with 1:N pretection switch group
Described low order interlace algorithm baffle, for after receiving the signal triggering and switch, carries out switching business configuration, after switching business configuration, sends first switch ready signal to described high order cross plate described in completing; And when receive the transmission of described high order cross plate second switches ready signal, described in enable, switch business;
Described high order cross plate, for after receiving the signal triggering and switch, carries out cross business configuration, after completing described cross business configuration, sends described second switch ready signal to described low order interlace algorithm baffle; And when receive the transmission of described low order interlace algorithm baffle described first switches ready signal, enable described cross business; Wherein, described low order interlace algorithm baffle, for receive in the first threshold time after switching business configuration described in completing second switch ready signal time, switch business described in enable, otherwise, described first threshold time arrive time, switch business described in enable;
Described high order cross plate, for complete described cross business configuration after the second threshold time in receive first switch ready signal time, enable described cross business, otherwise, described second threshold time arrive time, enable described cross business.
6. system according to claim 5, is characterized in that, the maximum duration that described first threshold time carries out cross business configuration according to described high order cross plate is arranged.
7. system according to claim 5, is characterized in that, the maximum duration that described second threshold time carries out switching business configuration according to described low order interlace algorithm baffle is arranged.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010256260.7A CN101908931B (en) | 2010-08-17 | 2010-08-17 | The method and system of protection switching of optical transmission equipment |
| PCT/CN2011/071923 WO2012022147A1 (en) | 2010-08-17 | 2011-03-17 | Method and system for protection switching of optical transport device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010256260.7A CN101908931B (en) | 2010-08-17 | 2010-08-17 | The method and system of protection switching of optical transmission equipment |
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| CN101908931A CN101908931A (en) | 2010-12-08 |
| CN101908931B true CN101908931B (en) | 2015-08-12 |
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| CN201010256260.7A Active CN101908931B (en) | 2010-08-17 | 2010-08-17 | The method and system of protection switching of optical transmission equipment |
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| WO (1) | WO2012022147A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101908931B (en) * | 2010-08-17 | 2015-08-12 | 中兴通讯股份有限公司 | The method and system of protection switching of optical transmission equipment |
| WO2011157162A2 (en) * | 2011-06-01 | 2011-12-22 | 华为技术有限公司 | Protection switching method and apparatus |
| CN107483103A (en) * | 2017-10-11 | 2017-12-15 | 深圳市新格林耐特通信技术有限公司 | OLT device and OLT device redundancy protected method |
| CN111131935B (en) * | 2019-12-27 | 2022-03-29 | 上海欣诺通信技术股份有限公司 | OTN switching method, device, equipment and storage medium |
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| CN1558638A (en) * | 2004-01-18 | 2004-12-29 | 中兴通讯股份有限公司 | An inter-processor communication method based on message |
| CN1984503A (en) * | 2006-04-07 | 2007-06-20 | 华为技术有限公司 | System and method for crossed scheduling |
| CN101540638A (en) * | 2009-05-06 | 2009-09-23 | 烽火通信科技股份有限公司 | Inter-board protection switching method of TDM service channel in EPON system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4844558B2 (en) * | 2005-03-31 | 2011-12-28 | 日本電気株式会社 | Optical communication method, optical communication apparatus, and optical communication system |
| CN101145869B (en) * | 2007-08-02 | 2011-03-02 | 中兴通讯股份有限公司 | Switching method |
| CN101188455A (en) * | 2007-12-18 | 2008-05-28 | 中兴通讯股份有限公司 | A protection method for intercrossed board |
| CN101969583B (en) * | 2009-07-28 | 2013-06-05 | 中兴通讯股份有限公司 | Total service cross configuration method and device for optical transmission system |
| CN101908931B (en) * | 2010-08-17 | 2015-08-12 | 中兴通讯股份有限公司 | The method and system of protection switching of optical transmission equipment |
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2010
- 2010-08-17 CN CN201010256260.7A patent/CN101908931B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1558638A (en) * | 2004-01-18 | 2004-12-29 | 中兴通讯股份有限公司 | An inter-processor communication method based on message |
| CN1984503A (en) * | 2006-04-07 | 2007-06-20 | 华为技术有限公司 | System and method for crossed scheduling |
| CN101540638A (en) * | 2009-05-06 | 2009-09-23 | 烽火通信科技股份有限公司 | Inter-board protection switching method of TDM service channel in EPON system |
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| WO2012022147A1 (en) | 2012-02-23 |
| CN101908931A (en) | 2010-12-08 |
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