CN1764132A - Method for detecting spare channel - Google Patents
Method for detecting spare channel Download PDFInfo
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- CN1764132A CN1764132A CNA2004100878296A CN200410087829A CN1764132A CN 1764132 A CN1764132 A CN 1764132A CN A2004100878296 A CNA2004100878296 A CN A2004100878296A CN 200410087829 A CN200410087829 A CN 200410087829A CN 1764132 A CN1764132 A CN 1764132A
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- wiring board
- detection
- byte
- network element
- detects
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Abstract
The invention discloses a detection method to standby channel in network protection field, which comprises: a. the initiator sends detection bytes; b. the operator turns round detection bytes on cross place; c. if the received bytes of the initiator same as the send bytes, it shows the standby channel OK; d. or else, it decides the channel failure. This invention can take efficient monitor to protection channel, and avoids switch failure.
Description
Technical field
The present invention relates to the network protection field, relate in particular to the method that a kind of spare channel detects.
Background technology
Multiplex Section Shared Protection Ring is a kind of network protection method commonly used, can be used for protecting other Signal Fail of multiplex section level.For example in the multiplex section ring, 1～N/2 VC4 in optical fiber is service aisle (Working), (N/2+1)～and a N VC4 is protection passage (Protection).Under situation about not being used, the quality of protection passage (Protection) can not effectively be monitored, and in protection passage bad time, if multiplex section rearrangement takes place, will cause switching unsuccessful.Therefore be necessary to provide a kind of method that detects protection passage quality,, avoid switching failure to detect the quality of protection passage.Up to now, also there is not a kind of prior art can realize this needs.
Summary of the invention
The purpose of this invention is to provide the method that a kind of spare channel detects.The equipment that makes can in time detect the quality of alternate channel, avoids catching sight of in use channel failure, the loss of avoiding contingency to produce.
For achieving the above object, the present invention is achieved through the following technical solutions:
Comprise the steps:
A, the network element of initiating to detect send and detect byte;
After b, detection byte arrived the network element that cooperates detection through alternate channel, the network element that cooperation detects should detect the byte loopback;
The detection byte of the network element loopback that the cooperation that the network element that c, described initiation detect is received detects is identical with the detection byte of its transmission, judges that then described alternate channel is good, detects and finishes;
The detection byte of the network element loopback that the cooperation that the network element that d, described initiation detect is received detects and the detection byte of its transmission are inequality, think that then described alternate channel is bad.
A timer is set:
The network element of initiating to detect in step a sends and detects byte, opening timing device;
The detection byte of the network element loopback that the cooperation of receiving in setting-up time at the network element of initiating described in the step c to detect detects is identical with the detection byte of its transmission, judges that then described alternate channel is good;
The detection byte of the network element loopback that the cooperation of receiving in setting-up time at the network element of initiating described in the steps d to detect detects and the detection byte of its transmission are inequality, think that then described alternate channel is bad.
The network element that network element that described initiation detects and cooperation detect all can be the combination of wiring board or wiring board separately; The network element that described initiation detects is made of the master control borad and first wiring board, and the network element that described cooperation detects is made of second wiring board and cross board.
Described detection step is:
A, master control borad start alternate channel and detect to the first wiring board transmitting order to lower levels; After first wiring board is received order, the path overhead termination is set, sends to second wiring board and detect byte;
B, second wiring board are after receiving the detection byte, and the notice cross board is done the loopback operation, and the expense break-through of alternate channel is set;
The detection byte that c, first wiring board receive the passback of second wiring board is identical with the detection byte of its transmission, thinks that alternate channel is good;
It is inequality that d, first wiring board receive the detection byte of the detection byte of second wiring board passback and its transmission, thinks that alternate channel is bad.
A timer is set:
Master control borad starts the alternate channel detection and starts timer to the first wiring board transmitting order to lower levels in step a; After first wiring board is received order, the path overhead termination is set, sends to second wiring board and detect byte;
To receive the detection byte of second wiring board passback in setting-up time identical with the detection byte of its transmission for first wiring board in step c, thinks that alternate channel is good;
If it is inequality that first wiring board receives the detection byte of the detection byte of second wiring board passback and its transmission in setting-up time in steps d, think that alternate channel is bad.
Cross board is after receiving the loopback application, judge whether alternate channel uses, then notify the failure of the second wiring board command execution as using, second wiring board directly returns and detects byte to first wiring board, then carry out loopback as not using, the success of announcement trunk plate command execution.
If second wiring board receives the normal byte that first wiring board sends, perhaps regularly finish, second wiring board is then cancelled the application of intersection loopback, recovers the configuration of original path overhead termination, sends normal byte simultaneously and returns first wiring board; If cross board just at loopback, is then cancelled loopback after receiving and finishing the loopback order.
Second wiring board if do not receive the response message of cross board, is then thought can send the loopback order until the response message that receives cross board to cross board continuously by communication abnormality in the timing of setting.
First wiring board sends normal byte to second wiring board after regularly finishing, recover the configuration of original path overhead termination, withdraws from testing process.
A detection counter is set, its maximum is more than or equal to 1, and the detection byte of receiving at the network element of initiating described in the steps d to detect and the detection byte of its transmission are inequality, then judge whether to reach the detection counter maximum, if do not reach maximum, then return step a; If judged result thinks then that for reaching the detection counter maximum described alternate channel is bad.
The present invention effectively monitors the quality of protection passage under the situation that the protection passage is not used, and the method that detects protection passage quality is provided, and to detect the quality of protection passage, avoids switching failure, for Network Transmission safety provides better protection.
Description of drawings
The method schematic diagram of Fig. 1 for alternate channel is detected;
Fig. 2 is the network element state figure in the testing process;
Fig. 3 is the 2 fine diagrams of sharing the multiplex section ring.
Embodiment
Core concept of the present invention provides the method that a kind of spare channel detects.
The embodiment of this method comprises the steps: as depicted in figs. 1 and 2
A, multiplex section are shared network element master control borad and the transmission of first wiring board initiating in the ring to detect and are detected byte, start timer and detect register;
After the network element that b, cooperation detect is received the detection byte of transmission, should detect byte at the infall loopback;
The detection byte that the network element that c, described initiation detect is received in setting-up time is identical with the detection byte of its transmission, judges that then this alternate channel is good;
The detection byte that the network element that d, described initiation detect is received in setting-up time and the detection byte of its transmission are inequality, then judge whether to reach the detection counter maximum, if do not reach maximum, then return step a; If judged result thinks then that for reaching the detection counter maximum detected alternate channel is bad, report alternate channel bad to main frame.
Execution mode is explained as follows more specifically:
1, the network element of initiation detection comprises the master control borad and first wiring board, and master control borad to the first wiring board transmitting order to lower levels, starts the alternate channel testing mechanism at certain special time, starts timer simultaneously and detects register;
2, first wiring board judges whether detected alternate channel satisfies testing conditions after receiving this order, and promptly (1) detected passage is not used; (2) detected passage place optical fiber does not have the multiplex section rank, or other alarm of regenerator section level, as RLOS, and MSAIS.If satisfy then the path overhead termination be set, send to second wiring board and detect j1 byte, start timer (time regularly can be adjusted according to the real network situation) and detection counter, if do not satisfy then be failure to actuate;
3, second wiring board judges whether to satisfy testing conditions after receiving the detection j1 byte, and promptly (1) detected passage is not used; (2) detected passage place optical fiber does not have the multiplex section rank, or other alarm of regenerator section level, as RLOS, and MSAIS.If satisfy then notify cross board to do the loopback operation, the expense break-through of respective channel is set, start timer (time regularly can be adjusted according to the real network situation) simultaneously, if do not satisfy then the path overhead termination is set, directly send the detection j1 byte;
4, cross board judges whether passage uses after receiving the loopback application, and then this application is invalid as using, notify the failure of the second wiring board command execution, second wiring board directly sends and detects j1 byte to first wiring board, does not use and then carries out loopback, the success of announcement trunk plate command execution;
5, second wiring board if do not receive the response message of cross board, is suspected communication abnormality in the timing of setting, and can send a loopback order until the response message that receives cross board every one fen clockwise cross board;
If 6, first wiring board is in timing, the detection j1 byte that receives the passback of second wiring board is identical with the detection j1 byte of its transmission, thinks that corresponding alternate channel is good, reports the alternate channel of current detection good to master control borad;
7, first wiring board sends the original normal j1 byte that disposes to second wiring board after regularly finishing, and recovers the configuration of original path overhead termination, withdraws from testing process;
8, first wiring board is after regularly finishing, judge the testing result of this alternate channel, the bad alarm of the no corresponding alternate channel of record if testing result is good, writing down this passage simultaneously need not detect again, if it is bad that the alternate channel testing result is arranged, continue then to judge whether detection counter has count down to the maximum times that allows detection, the time rear board of then back off timer setting that also it's not true initiatively starts alternate channel once more and detects, if detection counter has count down to the maximum times that allows detection, the continuous detecting of explanation in allowing number of times all detects failure, can determine that alternate channel is bad.
If 9, second wiring board receives normal j1 byte in the timing of setting, perhaps regularly finish, wiring board is cancelled the application of intersection loopback, recovers the configuration of original path overhead termination, sends the normal j1 byte that receives simultaneously;
10, after cross board receives and finishes the loopback order, if loopback is then cancelled loopback;
This detection method relates to the interoperation of a plurality of network elements, and each network element is in different states in the different courses of work, and detected wiring board is carried out different actions under different states; To being described as follows of state diagram:
Idle state (IDLE);
Detect attitude (CLIENT) for after initiating detection, continue check and receive the j1 byte stage;
Time-delay attitude (CLIENT) for detect finish after, the time-delay certain hour is initiated stage of detecting once more;
Operating conditions (SERVER) for receive detect byte after, the detected stage of alternate channel;
Described network element or wiring board can only be in the state along with the variation of oneself state is finished in the variation of operating state.
Wiring board is in the IDLE attitude, and master control issues starting command, judges whether to satisfy entry condition, if satisfy, just jumps to CLIENT and detects attitude; Wiring board is when CLIENT detects the attitude end, and judging whether also needs to initiate once more to detect, if do not need, just jumps to the IDLE attitude, if the overtime IDLE attitude of also getting back to; Wiring board is when CLIENT detects the attitude end, and judging whether also needs to initiate once more to detect, and if desired, just jumps to CLIENT time-delay attitude; Wiring board directly jumps to CLIENT and detects attitude when CLIENT time-delay attitude finishes; Wiring board receives the detection j1 byte in the IDLE attitude, judge whether to satisfy entry condition, if satisfy, just jumps to the SERVER attitude; Wiring board receives non-detection j1 byte in the SERVER attitude, directly jump to the IDLE state.
When wiring board is in non-IDLE attitude,, need jump to the IDLE attitude immediately if start detection condition one does not satisfy;
When wiring board is in the SERVER attitude, if in official hour, never receive normal j1 byte, have the ability to jump to automatically the IDLE attitude
To with the detection mode of passage, passage detects one by one, but also certain several passage detects simultaneously.
For 4 fine rings, method is similar, the middle byte of J0 byte (or other section overhead) can be set carry out the detection of spare channel, and the expense that also can be provided with in the higher order path detects the passage quality.
For 1: also available this method of the linear multiplex section of N detects the protection passage.
The protection form that is not used on other protection passage also can protect the passage quality to detect by this method.
This method is not limited to SDH (Synchronous Digital Hierarchy) (SDH) field, and also available similar method detects spare channel in optical transfer network (OTN) field.Can be provided with similar mode in the OTN field, intersect side at OTN and carry out the loopback of light path data cell (ODUk), reach the purpose that detects spare channel.
The above be preferred forms of the present invention only, but protection scope of the present invention is not limited to therewith.Anyly be familiar with those skilled in the art, thinkable variation of institute or replacement all are encompassed within protection scope of the present invention in the disclosed scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the determined protection range of claims.
Claims (10)
1, a kind of method of spare channel detection is characterized in that, comprises the steps:
A, the network element of initiating to detect send and detect byte;
After b, detection byte arrived the network element that cooperates detection through alternate channel, the network element that cooperation detects should detect the byte loopback;
The detection byte of the network element loopback that the cooperation that the network element that c, described initiation detect is received detects is identical with the detection byte of its transmission, judges that then described alternate channel is good, detects and finishes;
The detection byte of the network element loopback that the cooperation that the network element that d, described initiation detect is received detects and the detection byte of its transmission are inequality, think that then described alternate channel is bad.
2, the method for a kind of spare channel detection as claimed in claim 1 is characterized in that, a timer is set:
The network element of initiating to detect in described step a sends and detects byte, opening timing device;
The detection byte of the network element loopback that the cooperation of receiving in setting-up time at the network element of initiating described in the described step c to detect detects is identical with the detection byte of its transmission, judges that then described alternate channel is good;
The detection byte of the network element loopback that the cooperation of receiving in setting-up time at the network element of initiating described in the described steps d to detect detects and the detection byte of its transmission are inequality, think that then described alternate channel is bad.
3, the method for a kind of spare channel detection as claimed in claim 1 or 2 is characterized in that, the network element that network element that described initiation detects and cooperation detect all can be the combination of wiring board or wiring board separately; The network element that described initiation detects is made of the master control borad and first wiring board, and the network element that described cooperation detects is made of second wiring board and cross board.
4, the method for a kind of spare channel detection as claimed in claim 3 is characterized in that described detection step is:
A, master control borad start alternate channel and detect to the first wiring board transmitting order to lower levels; After first wiring board is received order, the path overhead termination is set, sends to second wiring board and detect byte;
B, second wiring board are after receiving the detection byte, and the notice cross board is done the loopback operation, and the expense break-through of alternate channel is set;
The detection byte that c, first wiring board receive the passback of second wiring board is identical with the detection byte of its transmission, thinks that alternate channel is good;
It is inequality that d, first wiring board receive the detection byte of the detection byte of second wiring board passback and its transmission, thinks that alternate channel is bad.
5, the method for a kind of spare channel detection as claimed in claim 4 is characterized in that, a timer is set:
Master control borad starts the alternate channel detection and starts timer to the first wiring board transmitting order to lower levels in described step a; After first wiring board is received order, the path overhead termination is set, sends to second wiring board and detect byte;
To receive the detection byte of second wiring board passback in setting-up time identical with the detection byte of its transmission for first wiring board in described step c, thinks that alternate channel is good;
If it is inequality that first wiring board receives the detection byte of the detection byte of second wiring board passback and its transmission in setting-up time in described steps d, think that alternate channel is bad.
6, the method that detects as claim 4 or 5 described a kind of spare channels, it is characterized in that, cross board is after receiving the loopback application, judge whether alternate channel uses, then notify the failure of the second wiring board command execution as using, second wiring board directly returns and detects byte to first wiring board, then carries out loopback as not using, the success of announcement trunk plate command execution.
7, the method that detects as claim 4 or 5 described a kind of spare channels, it is characterized in that, if second wiring board receives the normal byte that first wiring board sends, perhaps regularly finish, second wiring board is then cancelled the application of intersection loopback, recover the configuration of original path overhead termination, send normal byte simultaneously and return first wiring board; If cross board just at loopback, is then cancelled loopback after receiving and finishing the loopback order.
8, the method for a kind of spare channel detection as claimed in claim 5, it is characterized in that, second wiring board is in the timing of setting, if do not receive the response message of cross board, then think and to send the loopback order until the response message that receives cross board to cross board continuously by communication abnormality.
9, the method for a kind of spare channel detection as claimed in claim 5 is characterized in that, first wiring board sends normal byte to second wiring board after regularly finishing, and recovers the configuration of original path overhead termination, withdraws from testing process.
10, the method that detects as claim 1,2,4,5,8 or 9 described a kind of spare channels, it is characterized in that, a detection counter is set, its maximum is more than or equal to 1, the detection byte of receiving at the network element that initiate to detect described in the steps d and the detection byte of its transmission are inequality, then judge whether to reach the detection counter maximum,, then return step a if do not reach maximum; If judged result thinks then that for reaching the detection counter maximum described alternate channel is bad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100878296A CN100362816C (en) | 2004-10-22 | 2004-10-22 | Method for detecting spare channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100878296A CN100362816C (en) | 2004-10-22 | 2004-10-22 | Method for detecting spare channel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1764132A true CN1764132A (en) | 2006-04-26 |
| CN100362816C CN100362816C (en) | 2008-01-16 |
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ID=36748094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100878296A Expired - Fee Related CN100362816C (en) | 2004-10-22 | 2004-10-22 | Method for detecting spare channel |
Country Status (1)
| Country | Link |
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| CN (1) | CN100362816C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010083764A1 (en) * | 2009-01-22 | 2010-07-29 | 中兴通讯股份有限公司 | Device and method for coordinating automatic protection switching operation and recovery operation |
| CN101242618B (en) * | 2008-03-04 | 2011-12-07 | 中兴通讯股份有限公司 | A real time detection method for communication status in communication channel |
| WO2015035919A1 (en) * | 2013-09-11 | 2015-03-19 | International Business Machines Corporation | Coordination of spare lane usage between link partners |
| CN106888138A (en) * | 2017-03-17 | 2017-06-23 | 烽火通信科技股份有限公司 | A kind of service channel detecting system and detection method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100297590B1 (en) * | 1998-09-18 | 2001-08-07 | 서평원 | Path test method of switch network at exchange |
| CN1113518C (en) * | 1999-03-18 | 2003-07-02 | 上海贝尔电话设备制造有限公司 | User board controller for cut-in network equipment |
| JP2001045021A (en) * | 1999-07-30 | 2001-02-16 | Hitachi Kokusai Electric Inc | Duplicate processing system |
| JP2003008621A (en) * | 2001-06-19 | 2003-01-10 | Fujitsu Ltd | System configuration control equipment |
| CN1512675A (en) * | 2002-12-31 | 2004-07-14 | 东方通信科技发展有限公司 | Conversion method for main and spare communication channels |
-
2004
- 2004-10-22 CN CNB2004100878296A patent/CN100362816C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101242618B (en) * | 2008-03-04 | 2011-12-07 | 中兴通讯股份有限公司 | A real time detection method for communication status in communication channel |
| WO2010083764A1 (en) * | 2009-01-22 | 2010-07-29 | 中兴通讯股份有限公司 | Device and method for coordinating automatic protection switching operation and recovery operation |
| US8775869B2 (en) | 2009-01-22 | 2014-07-08 | Zte Corporation | Device and method for coordinating automatic protection switching operation and recovery operation |
| WO2015035919A1 (en) * | 2013-09-11 | 2015-03-19 | International Business Machines Corporation | Coordination of spare lane usage between link partners |
| CN105531964A (en) * | 2013-09-11 | 2016-04-27 | 国际商业机器公司 | Coordination of spare lane usage between link partners |
| US9354990B2 (en) | 2013-09-11 | 2016-05-31 | International Business Machines Corporation | Coordination of spare lane usage between link partners |
| US10296253B2 (en) | 2013-09-11 | 2019-05-21 | International Buiness Machines Corporation | Coordination of spare lane usage between link partners |
| CN106888138A (en) * | 2017-03-17 | 2017-06-23 | 烽火通信科技股份有限公司 | A kind of service channel detecting system and detection method |
| CN106888138B (en) * | 2017-03-17 | 2019-07-16 | 烽火通信科技股份有限公司 | A kind of service channel detection system and test method |
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| CN100362816C (en) | 2008-01-16 |
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