CN101355386B - Method for automatically discovering error connection of multiplex segment protective optical fiber - Google Patents
Method for automatically discovering error connection of multiplex segment protective optical fiber Download PDFInfo
- Publication number
- CN101355386B CN101355386B CN200810141783XA CN200810141783A CN101355386B CN 101355386 B CN101355386 B CN 101355386B CN 200810141783X A CN200810141783X A CN 200810141783XA CN 200810141783 A CN200810141783 A CN 200810141783A CN 101355386 B CN101355386 B CN 101355386B
- Authority
- CN
- China
- Prior art keywords
- network element
- byte
- network
- bit
- net
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention discloses a method for automatically finding out the wrong connection between multiplex section protective optical fibers. The method comprises: firstly, the network configuration information of all net elements in a detecting light net is read out; secondly, the k byte received by two adjacent net elements are analyzed and processed, and simultaneously the K byte is constructed and sent to adjacent net elements; until all net elements in the light net execute the multiplex section switching repositioning command, the wrong connection between multiplex section protective optical fibers found out is reported to the net management system. In the invention, all net elements in the light net perform the automatic finding operation, the net configuration information is utilized, and IDs and connection light port IDs of the adjacent net elements are detected and compared, thereby realizing the automatic finding of the wrong connection between multiplex section protective optical fibers, ensuring the successful automatic protection switching mechanism and improving the survivability of the light net.
Description
Technical field
What the present invention relates to is the wrong automatic discovering method that connects of a kind of optical fiber, in particular a kind of automatic discovering method of error connection of multiplex segment protective optical fiber in the optical transmission field in the optical communication field.
Background technology
Synchronous digital staging hierarchy of the prior art (SDH-Synchronous Digital Hierarchy) is a kind of with the transmission of multiple connection, circuit and function of exchange combines together and transmit network by the integrated information of united net management system operation; Synchronous Optical Network (SONET-Synchronous Optical Network) is that U.S.'s Bel's Research on Communication Technology puts forward; International Telecommunication Union (ITU-InternationalTelecommunication Union) has accepted the SONET notion and has renamed to be SDH in 1988; It is become is not only applicable to optical fiber and is applicable to that the current techique system .SDH of microwave and satellite transmits is the employed tranmission techniques of telecommunications backbone net yet; And these telecommunication networks have been considered the reliability of network when planning and designing; In system, be provided with a series of resist technology, for example SNCP (SNCP:Sub-Network Connection Protection), multiplex section protection (MSP:MultiplexSection Protection) etc.Because the application of these resist technologies; When user's business breaks down in transmission path; Just can be switched to the protection path, the business datum of transmission is recovered rapidly, improve the reliability of transmission network like this in the short time (generally requiring) less than 50 milliseconds.
But these protection configurations all can more complicated, trunk ring normally, and some backbone nodes are with some low speed rings more then; Topological structure although it is so is higher to the protection of business, and still more complicated in the configuration of engineering disposes easily and makes mistakes; Especially all the more so in the connection for optical fiber.Because each website all can have a lot of optical fiber; And what connect is again the network element of other website usually, is carrying out just being easy to occur wrong the company when multiplex segment protective optical fiber connects like this, but also is being not easy to find; Sometimes also can occur switching normal; Just the time can exceed standard, and can cover the true cause of problem like this, has increased the time and the difficulty of dealing with problems.Network diagram when being illustrated in figure 1 as a general multiplex section protective ring and correctly connecting, circle is represented network element, and the numeral in the circle is a NE ID, and the line segment representative connects optical fiber, the digitized representation light mouth ID on the line segment; Network diagram when being illustrated in figure 2 as network that Fig. 1 representes and occurring in the position of network element 5 that the light mouth is wrong to be connected.
Thereby prior art awaits to improve and improve.
Summary of the invention
The object of the present invention is to provide a kind of automatic discovering method of error connection of multiplex segment protective optical fiber,, guarantee carrying out smoothly of APS mechanism to realize the finding error connection of multiplex segment protective optical fiber in the networking configuration automatically.
Technical scheme of the present invention comprises:
A kind of automatic discovering method of error connection of multiplex segment protective optical fiber, this method comprises:
A, read the network configuration information of all network elements in the optical-fiber network to be detected;
B, all network elements in the said optical-fiber network are carried out find operation automatically.
Described automatic discovering method, wherein, said step B also comprises:
Carry out the multiplex section rearrangement reset command on B1, the arbitrary network element in said optical-fiber network, said arbitrary network element structure K byte also sends to its adjacent network element;
B2, said adjacent net meta analysis are handled the said K byte of receiving, construct the K byte simultaneously and send to its adjacent network element;
B3, repeating step B2, all network elements execute the multiplex section rearrangement reset command in said optical-fiber network, and report the error connection of multiplex segment protective optical fiber of being found to NMS.
Described automatic discovering method, wherein, said step B1 also comprises:
B11, said arbitrary network element is set for carrying out the beginning network element of finding operation automatically;
B12, NMS are assigned to said arbitrary network element and are carried out the multiplex section rearrangement reset command;
B13, said arbitrary network element are received said multiplex section rearrangement reset command, with the rearrangement revocation of carrying out originally;
B14, said arbitrary network element are constructed the K byte, and are sent to its adjacent network element from the light mouth that has disposed multiplex section protection.
Described automatic discovering method, wherein, said step B2 also comprises:
B21, said adjacent net unit carry out analyzing and processing according to network configuration information to said K byte;
B22, said adjacent network element are constructed the K byte, and are sent to its adjacent network element from the light mouth that has disposed multiplex section protection.
Described automatic discovering method, wherein, said K byte comprises K1 byte and K2 byte, said K1 byte and K2 byte are configured respectively.
Described automatic discovering method, wherein, the building method of said K1 byte comprises: bit 1 is set to 0000 to bit 4, and bit 5 is set to predetermined receiving terminal network element numbering to bit 8.
Described automatic discovering method, wherein, the building method of said K2 byte comprises: bit 1 is set to actual transmitting terminal network element numbering to bit 4, and bit 5 is set to line of apsides sign, and bit 6 is set to 000 to bit 8.
Described automatic discovering method, wherein, the said analyzing and processing process among the said step B21 comprises:
B211, the receiving terminal network element in K1 byte numbering and actual reception end network element numbering are compared inspection;
B212, the transmitting terminal network element in K2 byte numbering and predetermined transmitting terminal network element numbering in the network configuration information are compared inspection;
Predetermined light mouth numbering in B213, the actual light mouth numbering that will transmit the K byte and the network configuration information compares inspection.
Described automatic discovering method, wherein, said steps A also comprises
According to the detection needs, from network element to be detected, read corresponding network configuration information.
The automatic discovering method of a kind of error connection of multiplex segment protective optical fiber provided by the present invention; Owing to adopted all network elements in the said optical-fiber network are carried out discovery operation automatically; According to network configuration information; Adjacent NE ID of audit by comparison and connection light mouth ID have realized the error connection of multiplex segment protective optical fiber in the automatic discovery networking configuration; Guarantee carrying out smoothly of APS mechanism, improved the survivability of optical-fiber network.
Description of drawings
Network diagram when a general multiplex section protective ring correctly connects in Fig. 1 prior art;
Network diagram when light mouth mistake company appears in the network of corresponding diagram 1 expression in Fig. 2 prior art in network element 5 positions;
The method flow diagram of Fig. 3 preferred embodiment of the present invention;
Network diagram when two fiber complex section guard rings of Fig. 4 preferred embodiment of the present invention correctly connect;
Network diagram when light mouth mistake company appears in two fiber complex section guard rings of Fig. 5 preferred embodiment of the present invention in network element 1 position;
The network diagram of two fiber complex section guard rings of Fig. 6 preferred embodiment of the present invention when wrong the company appears in the receiving terminal network element position;
Two fiber complex section guard rings of Fig. 7 preferred embodiment of the present invention the wrong network diagram that connects occurs at the transmitting terminal network element position.
Embodiment
Below in conjunction with accompanying drawing, will specify preferred embodiment of the present invention.
Core of the present invention is that through on network element, carrying out the multiplex section rearrangement reset command, structure and transmission K byte according to network configuration information, relatively detect adjacent NE ID and light mouth ID, find the error connection of multiplex segment protective optical fiber in the networking configuration automatically; Guarantee carrying out smoothly of APS mechanism, improved the survivability of optical-fiber network.
Specify method flow of the present invention and beneficial effect with a concrete example below, as shown in Figure 3, help understand the present invention, but should not regard as qualification of the present invention.
S301, NMS are configured management to network to be detected, from network element to be detected, read corresponding network configuration information as required;
Be illustrated in figure 4 as a concrete network, two fiber complex section guard rings so that 3 network elements are formed are configured management through NMS to these 3 network elements, its network configured configuration information such as following table:
| NE ID | The east orientation NE ID | East orientation connects the light mouth | The west is to NE ID | The west is to connecting the |
| 1 | 2 | 6.1 | 3 | 11.1 |
| 2 | 3 | 6.1 | 1 | 7.1 |
| 3 | 1 | 6.1 | 2 | 8.1 |
Said NMS is launched the multiplex section protection of operation to needs, issues to launch order, and the multiplex section protection function is launched, and network has just configured multiplex section protection like this.
S302, the said NMS arbitrary network element in network to be detected issues the multiplex section rearrangement reset command; Said arbitrary network element is the starting point of network measuring; Said arbitrary network element is received said multiplex section rearrangement reset command, and the horizontal reset of going forward side by side operation is about to the original rearrangement revocation of carrying out and falls; In this object lesson, said arbitrary network element is set at network element 3, and is as shown in Figure 4;
S303, said arbitrary network element have been constructed the K byte and have been sent to its adjacent network element from the light mouth that has disposed multiplex section protection; Said K byte comprises K1 byte and K2 byte, and concrete building method is following:
The bit1-bit4 (first to the 4th) of K1 byte is set to 0000 (not having request NR-NonRequest); The bit5-bit8 of K1 is set to the promptly predetermined receiving terminal ID of destination NE ID, and said destination NE ID is provided with according to network configuration information; In this object lesson, the destination network element is a network element 1, and then the bit5-bit8 of K1 is 0001;
It is actual transmitting terminal ID that the bit1-bit4 of K2 byte is set to the source node NE ID, and in this object lesson, the source node network element is a network element 3, and then the bit1-bit4 of K2 is 0011; Bit5 is set to line of apsides sign, and its value can be determined by K byte transfer path for 0 (short circuit) or 1 (long road); In this object lesson, if K byte transfer path is for directly to be sent to network element 1 by network element 3, then the line of apsides is designated 0; If K byte transfer path is sent to network element 1 again for to be sent to network element 2 by network element 3, then the line of apsides is designated 1; Bit6-bit8 was set to for 000 (free time);
S304, said adjacent network element are received the K byte that said arbitrary network sends over; If this network element was not also carried out reset command; Then carry out and cancel the action of switching; Send to the adjacent network element of said adjacent network element simultaneously according to the new K byte of K byte-structured method construct among the step S303, and from the light mouth that has disposed multiplex section protection; And according to the network configuration information of correspondence, the said K byte that analyzing and processing is received has following three aspects:
(1), destination NE ID in the K1 byte and actual reception end NE ID are compared inspection;
Said adjacent network element reads the destination NE ID from the K1 byte, said destination NE ID and said adjacent NE ID are compared inspection; Following two kinds of situation are arranged:
If first is consistent, for example shown in Figure 4, the destination NE ID is 0001, and actual reception end NE ID also is 0001, and this explanation actual reception end network element position is correct;
If second is not consistent; As shown in Figure 6; The destination NE ID is 0001, and actual reception end NE ID is 0010 (network element 2), and this explanation actual reception end network element position is incorrect; Optical channel should be connected to network element 1 and but link network element 2 and got on, and at this moment mistake is reported NMS;
(2), the source node NE ID is that predetermined transmitting terminal NE ID in actual transmitting terminal and the network configuration information compares inspection in the K2 byte;
Said adjacent network element reads the source node NE ID from the K2 byte; From actual reception end network element (perhaps this network element), read corresponding network configuration information, obtain predetermined transmitting terminal NE ID; Following two kinds of situation are arranged:
If first is consistent, as shown in Figure 4, actual transmitting terminal NE ID is 0011 to be network element 3, and predetermined transmitting terminal NE ID also is 0011 in the network configuration information, and this explains that actual transmitting terminal network element position is correct;
If second is not consistent, actual transmitting terminal NE ID is 0010 to be network element 2; The predetermined transmitting terminal NE ID that from network configuration information, obtains is 0011, and this explains that actual transmitting terminal network element position is incorrect, and optical channel should connect network element 3 but have been linked network element 2 and got on, as shown in Figure 7, at this moment mistake is reported NMS;
(3), will transmit the actual light mouth ID of K byte and the predetermined light mouth ID in the network configuration information and compare inspection;
Said adjacent network element reads the bit5 line of apsides sign in the K2 byte, is used for confirming to transmit the actual light mouth ID of K byte, and said light mouth ID comprises: transmitting terminal light mouth ID and receiving terminal light mouth ID; In this object lesson, said transmitting terminal network element is a network element 3, and said adjacent network element is a network element 1; Network element 1 reads the K2 byte in the K byte of receiving, wherein bit5 line of apsides sign is detected, and following two kinds of situation are arranged:
If first its value is 0 (minor axis), can know that from network configuration information the predetermined light mouth ID that the K byte transmits is: predetermined transmitting terminal light mouth ID is 6.1, and predetermined receiving terminal light mouth ID is 11.1; Obtain the actual light mouth ID that the K byte transmits passage, as shown in Figure 4, actual transmitting terminal light mouth ID is 6.1, and actual reception end light mouth ID is 11.1, and the two consistent light mouth of explaining connects correctly; If actual transmitting terminal light mouth ID is 6.1, actual reception end light mouth ID is 6.1, and is as shown in Figure 5; At this moment this explanation actual reception end light mouth mistake connects mistake and offers NMS;
If second its value is 1 (major diameter), can know that from network configuration information the predetermined light mouth ID that the K byte transmits is: predetermined transmitting terminal light mouth ID is 8.1, and predetermined receiving terminal light mouth ID is 6.1; Obtain the actual light mouth ID that the K byte transmits passage, as shown in Figure 4, actual transmitting terminal light mouth ID is 8.1, and actual reception end light mouth ID is 6.1, and the two consistent light mouth of explaining connects correctly; If actual transmitting terminal light mouth ID is 8.1, actual reception end light mouth ID is 11.1; As shown in Figure 5, at this moment this explanation actual reception end light mouth mistake connects mistake and offers NMS;
S305, the network element that receives the K byte are set to the transmitting terminal network element; According to the good K byte of K byte-structured method construct among the step S303, and to its adjacent network element transmission K byte; Until all carried out the multiplex section rearrangement reset command on all network elements in the network to be detected; Handle the K byte of receiving according to the methods analyst among the step S304; And with corresponding network configuration information audit by comparison, so just can find all error connection of multiplex segment protective optical fiber.
In sum; The inventive method is through carrying out the multiplex section rearrangement reset command on the network element, structure and transmission K byte are to obtain the light mouth ID of NE ID and transmission passage; Compare inspection according to network configuration information, find the error connection of multiplex segment protective optical fiber in the networking configuration automatically; The inventive method is owing to adopted the byte through structure K; According to network configuration information; Adjacent NE ID of audit by comparison and connection light mouth ID have realized the error connection of multiplex segment protective optical fiber in the automatic discovery networking configuration, have improved accident analysis efficient and have eliminated the influence of problem to subsequent analysis; Guarantee carrying out smoothly of APS mechanism, improved the survivability of optical-fiber network.
Should be understood that above-mentioned description to specific embodiment is comparatively detailed, can not therefore think the restriction to scope of patent protection of the present invention, scope of patent protection of the present invention should be as the criterion with accompanying claims.
Claims (5)
1. the automatic discovering method of an error connection of multiplex segment protective optical fiber, this method comprises:
A, read the network configuration information of all network elements in the optical-fiber network to be detected;
B, all network elements in the said optical-fiber network are carried out find operation automatically;
Said step B also comprises:
Carry out the multiplex section rearrangement reset command on B1, the arbitrary network element in said optical-fiber network, said arbitrary network element structure K byte also sends to its adjacent network element;
B2, said adjacent net meta analysis are handled the said K byte of receiving, construct the K byte simultaneously and send to its adjacent network element;
B3, repeating step B2, all network elements execute the multiplex section rearrangement reset command in said optical-fiber network, and report the error connection of multiplex segment protective optical fiber of being found to NMS;
Said step B1 also comprises:
B11, said arbitrary network element is set for carrying out the beginning network element of finding operation automatically;
B12, NMS are assigned to said arbitrary network element and are carried out the multiplex section rearrangement reset command;
B13, said arbitrary network element are received said multiplex section rearrangement reset command, with the rearrangement revocation of carrying out originally;
B14, said arbitrary network element are constructed the K byte, and are sent to its adjacent network element from the light mouth that has disposed multiplex section protection;
Said step B2 also comprises:
B21, said adjacent net unit carry out analyzing and processing according to network configuration information to said K byte;
If the said adjacent network element of B22 was not also carried out reset command, then carry out and cancel the action of switching, construct the K byte simultaneously, and send to its adjacent network element from the light mouth that has disposed multiplex section protection.
2. automatic discovering method according to claim 1 is characterized in that, said K byte comprises K1 byte and K2 byte, and said K1 byte and K2 byte are configured respectively.
3. automatic discovering method according to claim 2 is characterized in that, the building method of said K1 byte comprises: bit 1 is set to 0000 to bit 4, and bit 5 is set to predetermined receiving terminal network element numbering to bit 8.
4. automatic discovering method according to claim 2 is characterized in that, the building method of said K2 byte comprises: bit 1 is set to actual transmitting terminal network element numbering to bit 4, and bit 5 is set to line of apsides sign, and bit 6 is set to 000 to bit 8.
5. automatic discovering method according to claim 1 is characterized in that, the said analyzing and processing process among the said step B21 comprises:
B211, the receiving terminal network element in K1 byte numbering and actual reception end network element numbering are compared inspection;
B212, the transmitting terminal network element in K2 byte numbering and predetermined transmitting terminal network element numbering in the network configuration information are compared inspection;
Predetermined light mouth numbering in B213, the actual light mouth numbering that will transmit the K byte and the network configuration information compares inspection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810141783XA CN101355386B (en) | 2008-08-26 | 2008-08-26 | Method for automatically discovering error connection of multiplex segment protective optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810141783XA CN101355386B (en) | 2008-08-26 | 2008-08-26 | Method for automatically discovering error connection of multiplex segment protective optical fiber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101355386A CN101355386A (en) | 2009-01-28 |
| CN101355386B true CN101355386B (en) | 2012-05-23 |
Family
ID=40308005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810141783XA Active CN101355386B (en) | 2008-08-26 | 2008-08-26 | Method for automatically discovering error connection of multiplex segment protective optical fiber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101355386B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102457408B (en) * | 2010-10-26 | 2015-05-27 | 中国移动通信集团北京有限公司 | Method and device for checking business sub network connection protection |
| CN102710324A (en) * | 2012-05-16 | 2012-10-03 | 中兴通讯股份有限公司 | Method for processing messages in intelligent optical network and optical line equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003134072A (en) * | 2001-10-22 | 2003-05-09 | Fujitsu Ltd | Method and system for evading transmission line switching abnormality |
| CN1472894A (en) * | 2002-07-30 | 2004-02-04 | 深圳市中兴通讯股份有限公司 | Soluting method for protection of loop fault of optical transmission network by four fiber complex section sharing |
| CN1503478A (en) * | 2002-11-21 | 2004-06-09 | 华为技术有限公司 | Method for checking multiplex section state |
| CN1525662A (en) * | 2003-02-26 | 2004-09-01 | 华为技术有限公司 | A test method for multiplexing segment protection protocol |
-
2008
- 2008-08-26 CN CN200810141783XA patent/CN101355386B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003134072A (en) * | 2001-10-22 | 2003-05-09 | Fujitsu Ltd | Method and system for evading transmission line switching abnormality |
| CN1472894A (en) * | 2002-07-30 | 2004-02-04 | 深圳市中兴通讯股份有限公司 | Soluting method for protection of loop fault of optical transmission network by four fiber complex section sharing |
| CN1503478A (en) * | 2002-11-21 | 2004-06-09 | 华为技术有限公司 | Method for checking multiplex section state |
| CN1525662A (en) * | 2003-02-26 | 2004-09-01 | 华为技术有限公司 | A test method for multiplexing segment protection protocol |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101355386A (en) | 2009-01-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7633952B2 (en) | Discovery of physically adjacent neighbor devices using a unidirectional in-band process coupled with an out-of-band follow-up process | |
| EP2493116B1 (en) | Topology management method of ether multi-ring network, and system thereof | |
| US4901312A (en) | Remote interconnection of local area networks | |
| US6785224B2 (en) | Ring configuring method and node apparatus used in the ring | |
| US8488963B2 (en) | Link diversity and load balancing across digital and optical express-thru nodes | |
| US20020009091A1 (en) | Ring transmission system and squelch method used for same | |
| US6895182B1 (en) | Optical ring transmission system using squelch method | |
| CA2471184A1 (en) | Method for automated connection discovery in optical networks | |
| US7515545B2 (en) | Signal repeater and switching device, method of detecting connecting relation between signal repeater and switching device and communication system | |
| US7974187B2 (en) | Data transmission | |
| CN101355386B (en) | Method for automatically discovering error connection of multiplex segment protective optical fiber | |
| CN106301857A (en) | A kind of method of network protection, network node and system | |
| CN100571158C (en) | The method of monitoring network quality and device | |
| JP4427079B2 (en) | Automatic update of squelch tables for optical network applications | |
| US7522533B2 (en) | Optical transmission apparatus having path trace function | |
| US6535529B1 (en) | Cross connect apparatus capable of reducing workload of operator | |
| US8135284B2 (en) | Fiber misconnection detecting method and device | |
| US7355967B2 (en) | Transmission device | |
| US7580998B2 (en) | Method for describing problems in a telecommunications network | |
| US6839319B2 (en) | Office recognition method in ring network | |
| US7801122B2 (en) | Method and apparatus for extending synchronous optical networks | |
| CN101102163B (en) | Method for preventing the protection network of the loop multiplexing section from incorrect optical fiber connection and loop multiplexing section network | |
| CN100571171C (en) | A kind of method that realizes SNCP by serial monitoring function | |
| US20080181606A1 (en) | Optical bi-directional line-switched ring transmission system, transmission apparatus, and through cross-connect setting method | |
| JP2007243861A (en) | Pon system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |