CN101895361A - Method, system and clock board for transmitting synchronous status message - Google Patents
Method, system and clock board for transmitting synchronous status message Download PDFInfo
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- CN101895361A CN101895361A CN2010102274614A CN201010227461A CN101895361A CN 101895361 A CN101895361 A CN 101895361A CN 2010102274614 A CN2010102274614 A CN 2010102274614A CN 201010227461 A CN201010227461 A CN 201010227461A CN 101895361 A CN101895361 A CN 101895361A
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- 238000000034 method Methods 0.000 title claims abstract description 34
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 22
- 230000005540 biological transmission Effects 0.000 claims description 20
- 230000008569 process Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000004891 communication Methods 0.000 description 12
- 230000008859 change Effects 0.000 description 6
- 238000004364 calculation method Methods 0.000 description 5
- 230000006855 networking Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- RGNPBRKPHBKNKX-UHFFFAOYSA-N hexaflumuron Chemical compound C1=C(Cl)C(OC(F)(F)C(F)F)=C(Cl)C=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F RGNPBRKPHBKNKX-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
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- 238000012797 qualification Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
- H04J3/0685—Clock or time synchronisation in a node; Intranode synchronisation
- H04J3/0697—Synchronisation in a packet node
Abstract
The invention mainly aims to provide a method, a system and a clock board for transmitting synchronous status message. The method comprises that the clock board sends the synchronous status message to a service board in an Ethernet message switching mode. The method, the system and the clock board are simple to implement and reduce the maintenance cost.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of method, system and clock board of transmitting synchronous status message.
Background technology
In synchronous digital communications network (SDH/SONET), Synchronization Status Message (SSM) is the important assurance that clock unit is realized clock networking protection, and the protection in clock source is switched by SSM and realized.And transmit SSM between clock board and business board in real time is that the important step of protecting with the clock networking is switched in the clock source protection; whether what it directly influenced the phase-locked loop tracking is high-quality clock signal and networking defencive function; and then influence the clock signal situation of whole networking and whole SDH network operate as normal.
The inventor finds that present technology transmits SSM information by the hardware controls mode between clock board and business board, realizes complexity, and integrated level is low, reliability is low.
Summary of the invention
Main purpose of the present invention is to provide a kind of method, system and clock board of transmitting synchronous status message, to solve production cost and the maintenance cost problem of higher that above-mentioned hardware controls mode causes.
To achieve these goals, according to an aspect of the present invention, provide a kind of method of transmitting synchronous status message, comprising: clock board sends Synchronization Status Message by the Ethernet message switching scheme to business board.
To achieve these goals, according to a further aspect in the invention, provide a kind of clock board, having comprised: sending module is used for sending Synchronization Status Message by the Ethernet message switching scheme to business board.
To achieve these goals, according to a further aspect in the invention, provide a kind of system of transmitting synchronous status message, having comprised: business board and above-mentioned clock board.
The method of transmitting synchronous status message of the present invention, system and clock board are because send Synchronization Status Message by the Ethernet message switching scheme to business board, and this is a kind of software control method, so realize simply having reduced maintenance cost.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart of the method for transmitting synchronous status message according to the preferred embodiment of the invention;
Fig. 2 is the flow chart of the method for transmitting synchronous status message according to the preferred embodiment of the invention;
Fig. 3 is the system schematic of transmitting synchronous status message according to the preferred embodiment of the invention;
Fig. 4 is the schematic diagram of clock board according to the preferred embodiment of the invention.
Embodiment
Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
According to embodiments of the invention, a kind of method of transmitting synchronous status message is provided, comprising: clock board sends Synchronization Status Message by the Ethernet message switching scheme to business board.
In correlation technique, between clock board and business board, transmit SSM information by the hardware controls mode.Present embodiment is because send Synchronization Status Message by the Ethernet message switching scheme to business board, and this is a kind of software control method, so realize simply having reduced production and maintenance cost.
Preferably, clock board uses existing ethernet channel between clock board and the business board sharedly, sends SSM information by the Ethernet message switching scheme to business board.In correlation technique, between clock board and business board, transmit SSM information, and in the present embodiment,, share existing ethernet channel so can communicate by letter with other because employing is the Ethernet message switching scheme by the hardware controls mode.Because need not newly-built hardware corridor,, production and the maintenance cost of transmitting SSM have been saved so can improve integrated level.
Fig. 1 is the flow chart of the method for transmitting synchronous status message according to the preferred embodiment of the invention, and clock board sends Synchronization Status Message by the Ethernet message switching scheme to business board and comprises:
Step S102, judge whether clock board following at least a incident takes place: the system clock credit rating of clock board changes; Protection takes place in the clock source of clock board switches; Clock board receives the notice that business board starts; Clock board receives webmaster and forces to send the SSM notification of information;
Step S104 is if then clock board sends Synchronization Status Message to business board.
Communication or cry the communication of S mouth between plate is between veneer and the veneer, and transmission system internal data between NCP and the veneer does not have mutual communication with webmaster.If in order to transmit SSM in real time between clock board and business board, transmit SSM as far as possible continually, this frequent communication might cause the communication of S mouth to be blocked.Present embodiment just transmits SSM information under the situation that particular event drives, this can guarantee the real-time that SSM information is transmitted, and can reduce the traffic again, thus solved that the real-time that transmits SSM requires and channel pressure between the problem of generation contradiction.
Preferably, also judge whether to reach the transmission cycle, if then clock board sends SSM information to business board.Real-time in order to guarantee that SSM information is transmitted in the correlation technique, and transmit SSM information as far as possible continually.And in the present embodiment,, can be provided with greatlyyer so periodically send the cycle of SSM information because reasonably be provided with the trigger event that transmits SSM information, to reduce the traffic, avoid influencing other S port communications.
Preferably, clock board judges whether the system clock credit rating of clock board changes earlier, whether the clock source of judging clock board then protection takes place is switched, judge then whether clock board receives the notice that business board starts, judge then whether clock board receives webmaster and force to send the SSM notification of information, judges whether to have arrived the transmission cycle then; In the process that order is judged, in case judge establishment, the determining step after then ignoring is directly carried out clock board sends step from SSM information to business board.
Fig. 2 is according to the flow chart of the method for the transmitting synchronous status message of the preferred embodiment, comprises the steps:
Step S201, after the generation incident, whether decision event if change step S205, otherwise changes step S202 for the system clock credit rating changes.
Detect current system clock in this step, do not cause that the clock source protection switches if the change of credit rating just takes place system clock, then mark triggers is transmitted the flag bit of SSM information, carries out the step that sends SSM information.
Step S202, whether decision event switches for protection takes place in the clock source, if change step S205 over to, otherwise changes step S203 over to.
Owing to alarm is lost in the power supply input, credit rating changes, forces reasons such as switching timing source, cause the present clock source that protection takes place and switch in this step, then mark triggers is transmitted the flag bit of SSM information, carries out the step that sends SSM information.
Step S203, whether decision event is the notice after business board starts, if change step S205 over to, otherwise changes step S204 over to.
Owing to increase the insertion business board newly, perhaps restart reasons such as existing business board, the agreement business board need transmit current SSM information by specific format (as the message of interior Wen Weiquan 0) the notice clock veneer that sends the SSM infomational message and give business board after entering normal operating condition.If this special packet is received and resolved to the clock veneer, then mark triggers is transmitted the flag bit of SSM information, carries out the step that sends SSM information.
Step S204, whether decision event is that webmaster is forced to send the SSM notification of information, if change step S205 over to, otherwise gets back to step S201 again.
Because webmaster is forced certain port of certain business board is forced to send specific SSM information, if the clock veneer is received and resolved correctly, then mark triggers is transmitted the flag bit of SSM information, carries out the step that sends SSM information in this step.
Step S205 sends current SSM information.Present embodiment to all current SSM of business board broadcast transmission on the throne, continues execution in step S201-S205 after receiving incident with the form of multicast.
Detect each business board situation on the throne in this step, and,, write message with the multicast form with reference to message specification according to the situation that the SSM information and the webmaster of current system clock source force to transmit SSM information, and to the current SSM information of all business board broadcast transmissions on the throne.
Above step S201 forms an implementation to step S205.Present embodiment adopts above-mentioned judgement order, but the present invention is not limited to this, and clock board also can adopt the order that is different from above-mentioned order to judge to the incident that receives.
Step S206, whether the timing of timed sending SSM information arrives, if change step S207 over to.
The concrete condition that sends according to the message of S mouth communication in this step, other of the communication between plate of staggering be the transmission cycle of Ethernet message periodically, avoids crossing swords with them, selects the regularly cycle of circulating transfer SSM information, is 11 minutes and 11 seconds as selection cycle., the timing of timing cycle transmission SSM information carries out the step that sends SSM information if arriving.
Step S207 sends current SSM information, and restarts timer, gets back to step S206.Present embodiment with the form of multicast to all current SSM of business board broadcast transmission on the throne.
Detect each business board situation on the throne in this step, and,, write message with the multicast form with reference to message specification according to the situation that the SSM information and the webmaster of current system clock source force to transmit SSM information, and to the current SSM information of all business board broadcast transmissions on the throne.
In addition, step S206-S207 forms a circulation, above step S201 is the relation that walks abreast to the implementation of step S205 formation and the circulation of step S206-S207, promptly no matter whether step S201 carries out step S205 to the implementation that step S205 forms, the circulation of step S206-S207 all will be carried out independently, and constantly circulation is gone down.
Need to prove, can in computer system, carry out in the step shown in the flow chart of accompanying drawing such as a set of computer-executable instructions, and, though there is shown logical order in flow process, but can carry out in some cases, with the order execution step shown or that describe that is different from herein.
Preferably, the transmission cycle is set to asynchronous with other cycles of communicating by letter of sharing ethernet channel.This can reduce the pressure of communication between plate, reduces the possibility of blocking.
Preferably, clock board sends SSM information by the multicast mode to a plurality of business boards.Correlation technique is to adopt point-to-point message mode to transmit SSM information, compares with point-to-point message mode, thereby guarantees the real-time of the SSM information synchronization of each business board and clock board better.
The embodiment of the invention provides a kind of clock board, comprising: sending module is used for sending Synchronization Status Message by the Ethernet message switching scheme to business board.
In correlation technique, between clock board and business board, set up special hardware line to transmit SSM information, this belongs to a kind of hardware controls mode.Present embodiment is because send Synchronization Status Message by the Ethernet message switching scheme to business board, and this is a kind of software control method, so realize simply can improving integrated level, has reduced maintenance cost.
Fig. 3 is the schematic diagram of clock board according to the preferred embodiment of the invention, comprising:
Sending module 20 is used for judge module and is judged as when being, sends Synchronization Status Message to business board.
Preferably, sending module uses existing ethernet channel between clock board and the business board sharedly, sends Synchronization Status Message by the Ethernet message switching scheme to business board.
Preferably, judge module also judges whether to reach the transmission cycle, and sending module is judged as when being at judge module, sends Synchronization Status Message to business board, and wherein, the transmission cycle is asynchronous with other cycles of communicating by letter of shared ethernet channel.
Embodiments of the invention also provide a kind of system of transmitting synchronous status message, comprising: the clock board of business board and above-mentioned arbitrary embodiment.
Fig. 4 is the schematic diagram of the system of transmitting synchronous status message according to the preferred embodiment of the invention, comprising: clock board 1 has the passage of transmitting synchronous status message; Business board 2 connects with clock board 1, transmitting synchronous status message, and wherein, clock board 1 connects with a plurality of business boards 2, and by the form broadcast transmission Synchronization Status Message of Ethernet message switching scheme realization with multicast.
Because many large-scale communication apparatus, its professional groove position has about 40, each groove position is no less than two ports, present embodiment adopts multicast proforma message broadcast transmission mode can also improve first groove position business board and last groove position business board obtains the simultaneity of current SSM information, thereby guarantees the real-time of the SSM information synchronization of each business board and clock board better.
From above description, as can be seen, the present invention has realized following technique effect: just transmit SSM information under the situation that particular event drives, this can guarantee the real-time that SSM information is transmitted, can reduce the traffic again, thus solved that the real-time of the transmission SSM of correlation technique requires and channel pressure between produce the problem of contradiction.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. the method for a transmitting synchronous status message is characterized in that, comprising:
Clock board sends described Synchronization Status Message by the Ethernet message switching scheme to business board.
2. method according to claim 1 is characterized in that, described clock board uses existing ethernet channel between described clock board and the described business board sharedly, sends described Synchronization Status Message by the Ethernet message switching scheme to described business board.
3. method according to claim 2 is characterized in that, clock board sends described Synchronization Status Message by the Ethernet message switching scheme to business board and comprises:
Judge whether described clock board following at least a incident takes place:
The system clock credit rating of described clock board changes;
Protection takes place in the clock source of described clock board switches;
Described clock board receives the notice that business board starts;
Described clock board receives the notice that webmaster forces to send described Synchronization Status Message;
If then described clock board sends described Synchronization Status Message to described business board.
4. method according to claim 3 is characterized in that, also judges whether to reach the transmission cycle, if then described clock board sends described Synchronization Status Message to described business board.
5. method according to claim 4, it is characterized in that, described clock board judges whether the system clock credit rating of described clock board changes earlier, whether the clock source of judging described clock board then protection takes place is switched, judge then whether described clock board receives the notice that business board starts, judge that then whether described clock board receives the notice that webmaster forces to send described Synchronization Status Message, judges whether to have arrived the transmission cycle then; In the process that order is judged, in case judge establishment, the determining step after then ignoring is directly carried out described clock board sends step from described Synchronization Status Message to described business board.
6. method according to claim 4 is characterized in that, the described transmission cycle is set to asynchronous with other cycles of communicating by letter of sharing described ethernet channel.
7. method according to claim 1 is characterized in that, described clock board sends described Synchronization Status Message by the multicast mode to a plurality of described business boards.
8. a clock board is characterized in that, comprising:
Sending module is used for sending described Synchronization Status Message by the Ethernet message switching scheme to business board.
9. clock board according to claim 8 is characterized in that, also comprises:
Judge module is used to judge whether described clock board following at least a incident takes place:
The system clock credit rating of described clock board changes;
Protection takes place in the clock source of described clock board switches;
Described clock board receives the notice that business board starts;
Described clock board receives the notice that webmaster forces to send described Synchronization Status Message;
Described sending module is used for described judge module and is judged as when being, sends described Synchronization Status Message to described business board.
10. clock board according to claim 9, it is characterized in that, described judge module also judges whether to reach the transmission cycle, described sending module is judged as when being at described judge module, send described Synchronization Status Message to described business board, wherein, the described transmission cycle is asynchronous with other cycles of communicating by letter of sharing described ethernet channel.
11. the system of a transmitting synchronous status message is characterized in that, comprising: business board and each described clock board according to Claim 8-10.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010227461.4A CN101895361B (en) | 2010-07-12 | 2010-07-12 | Method, system and clock board for transmitting synchronous status message |
| PCT/CN2010/079578 WO2012006852A1 (en) | 2010-07-12 | 2010-12-08 | Method, system and clock board for transmitting synchronization status message |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010227461.4A CN101895361B (en) | 2010-07-12 | 2010-07-12 | Method, system and clock board for transmitting synchronous status message |
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| Publication Number | Publication Date |
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| CN101895361A true CN101895361A (en) | 2010-11-24 |
| CN101895361B CN101895361B (en) | 2017-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010227461.4A Expired - Fee Related CN101895361B (en) | 2010-07-12 | 2010-07-12 | Method, system and clock board for transmitting synchronous status message |
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| CN (1) | CN101895361B (en) |
| WO (1) | WO2012006852A1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102244573A (en) * | 2011-07-18 | 2011-11-16 | 中兴通讯股份有限公司 | Clock reporting method and device |
| WO2012006852A1 (en) * | 2010-07-12 | 2012-01-19 | 中兴通讯股份有限公司 | Method, system and clock board for transmitting synchronization status message |
| CN102387001A (en) * | 2011-10-21 | 2012-03-21 | 中兴通讯股份有限公司 | Method and system for transmitting frame headers of backplane |
| CN102594481A (en) * | 2012-03-08 | 2012-07-18 | 中兴通讯股份有限公司 | Clock oscillation generating method, device and system |
| WO2013097365A1 (en) * | 2011-12-26 | 2013-07-04 | 中兴通讯股份有限公司 | Method and network device for converging master clock sources |
| CN104270433A (en) * | 2014-09-23 | 2015-01-07 | 烽火通信科技股份有限公司 | Distributed type SSM protocol processing system and method based on complex packet switching system |
| WO2016082369A1 (en) * | 2014-11-25 | 2016-06-02 | 中兴通讯股份有限公司 | Method, apparatus and system for synchronizing clock source attributes |
| CN107959537A (en) * | 2016-10-17 | 2018-04-24 | 中国移动通信有限公司研究院 | A kind of state synchronization method and device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113641623B (en) * | 2021-06-30 | 2024-02-20 | 曙光网络科技有限公司 | Information interaction method and device, frame type network equipment and computer readable storage medium |
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| DE602007010225D1 (en) * | 2006-10-18 | 2010-12-16 | Tellabs Oy | Synchronization method and arrangement |
| US20090016384A1 (en) * | 2007-07-12 | 2009-01-15 | Tellabs Operations, Inc. | Method and apparatus for distributing synchronization status messages over a Resilient Packet Ring (RPR) |
| CN101895361B (en) * | 2010-07-12 | 2017-05-10 | 中兴通讯股份有限公司 | Method, system and clock board for transmitting synchronous status message |
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2010
- 2010-07-12 CN CN201010227461.4A patent/CN101895361B/en not_active Expired - Fee Related
- 2010-12-08 WO PCT/CN2010/079578 patent/WO2012006852A1/en active Application Filing
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| CN1758583A (en) * | 2004-10-09 | 2006-04-12 | 华为技术有限公司 | Clock, signal multiplex method and system |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012006852A1 (en) * | 2010-07-12 | 2012-01-19 | 中兴通讯股份有限公司 | Method, system and clock board for transmitting synchronization status message |
| CN102244573B (en) * | 2011-07-18 | 2017-03-22 | 中兴通讯股份有限公司 | clock reporting method and device |
| CN102244573A (en) * | 2011-07-18 | 2011-11-16 | 中兴通讯股份有限公司 | Clock reporting method and device |
| CN102387001A (en) * | 2011-10-21 | 2012-03-21 | 中兴通讯股份有限公司 | Method and system for transmitting frame headers of backplane |
| WO2012152158A1 (en) * | 2011-10-21 | 2012-11-15 | 中兴通讯股份有限公司 | Method and system for transmitting frame header in backplane |
| WO2013097365A1 (en) * | 2011-12-26 | 2013-07-04 | 中兴通讯股份有限公司 | Method and network device for converging master clock sources |
| CN103178919B (en) * | 2011-12-26 | 2017-03-29 | 中兴通讯股份有限公司 | The method and the network equipment of convergence master clock source |
| CN102594481B (en) * | 2012-03-08 | 2017-05-10 | 中兴通讯股份有限公司 | Clock oscillation generating method, device and system |
| CN102594481A (en) * | 2012-03-08 | 2012-07-18 | 中兴通讯股份有限公司 | Clock oscillation generating method, device and system |
| WO2016045539A1 (en) * | 2014-09-23 | 2016-03-31 | 烽火通信科技股份有限公司 | Distributed ssm protocol processing system and method based on complex packet switching system |
| CN104270433A (en) * | 2014-09-23 | 2015-01-07 | 烽火通信科技股份有限公司 | Distributed type SSM protocol processing system and method based on complex packet switching system |
| CN104270433B (en) * | 2014-09-23 | 2017-11-07 | 烽火通信科技股份有限公司 | Distributed SSM protocol processing systems and method based on complicated packet switching system |
| RU2673404C2 (en) * | 2014-09-23 | 2018-11-26 | Файберхоум Телекоммьюникейшн Текнолоджиз Ко., Лтд | System and method for processing distributed ssm protocols based on complex packet exchange system |
| WO2016082369A1 (en) * | 2014-11-25 | 2016-06-02 | 中兴通讯股份有限公司 | Method, apparatus and system for synchronizing clock source attributes |
| CN105703893A (en) * | 2014-11-25 | 2016-06-22 | 中兴通讯股份有限公司 | Clock source attribute synchronization method, clock source attribute synchronization device and clock source attribute synchronization system |
| CN107959537A (en) * | 2016-10-17 | 2018-04-24 | 中国移动通信有限公司研究院 | A kind of state synchronization method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101895361B (en) | 2017-05-10 |
| WO2012006852A1 (en) | 2012-01-19 |
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