CN101908923B - Overall self-detecting system and method - Google Patents
Overall self-detecting system and method Download PDFInfo
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Abstract
The invention discloses an overall self-detecting system. In the system, a cross processing unit is used for performing cross loop-back of a space division/time division mode in a traversal mode under the control of a main control unit; and a branch processing unit is used for performing connectivity test on a loop-back link between the branch processing unit and the cross processing unit and a cross loop-back link in the cross processing unit under the control of the main control unit. The invention also discloses an overall self-detecting method. The method comprises the following steps of: performing cross loop-back of the space division/time division mode in the traversal mode by the cross processing unit under the control of the main control unit, and performing connectivity test on the loop-back link between the branch processing unit and the cross processing unit and the cross loop-back link in the cross processing unit through cooperative test of the cross processing unit and the branch processing unit so as to realize self-detecting. The system and the method can improve the reliability, accuracy and efficiency of the test and reduce the cost of the test.
Description
Technical field
The present invention relates to from detection technique, relate in particular to complete machine situation self-check system and the method for a kind of synchronous digital transmission system (SDH) equipment.
Background technology
SDH equipment generally is made up of the multiple line unit of finishing difference in functionality, comprises power subsystem, control unit, professional low-order and high-order cross unit, overhead processing unit, all kinds outlet unit, clock unit etc.These component units can be referred to as the SDH network element, and the SDH network element is through after production line machines, must pass through tests such as a series of function, performance reach qualified after, can deliver and dispatch from the factory.
The method of existing test SDH network element, generally be to carry out the networking test according to practical application, as shown in Figure 1, must be equipped with webmaster control desk, SDH test instrumentation etc., the tester at first uses the webmaster control desk to come the artificially configuration data, gives the SDH network element with the data distributing of configuration then, and under the cooperation test of SDH test instrumentation, wait for that the SDH network element returns the execution result at the data of this configuration, the last test personnel judge the working condition of SDH network element by the observed traffic situation.
Obviously, adopting existing method of testing, is manually operated to the control of testing, and the shortcoming that has is: for finishing the test to the SDH network element, must be equipped with more extra resource, such as webmaster control desk, SDH test instrumentation etc.; Need respectively dissimilar SDH network elements to be tested by dissimilar SDH test instrumentations, because SDH equipment is to be made of dissimilar SDH network elements, therefore, can't test the complete machine situation of SDH equipment, test completeness deficiency is difficult to accomplish all standing test; Test consuming time, consumption manpower, inefficiency; For the fault that occurs in the test, place one's entire reliance upon tester's the professional qualities of monitoring network pipe control desk of locating speed speed are unfavorable for operation.To the large-scale production of SDH network element, when concentrating delivery, above shortcoming is particularly evident, is problem places such as the problem that each SDH network element may exist can not be found fast, locatees, maintenance, also is the bottleneck place that delivery guarantees.In sum, adopt prior art, need by the tester artificially of monitor gateway control desk whole test process to be controlled; But also need the cooperating of test instrumentation, to test each SDH network element in the SDH equipment respectively, cause the reliability of testing and accuracy is low, the inefficiency of test, the cost height of test.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of overall self-detecting system and method, can be automatically, synergistically each SDH network element in the SDH equipment is tested, thereby improved reliability and accuracy, the efficient of test and the cost that has reduced test of test, economized on resources.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of overall self-detecting system, this system comprises: main control unit, cross processing unit, branch road processing unit; Wherein,
Main control unit is used for the collaborative test of control described cross processing unit and described branch road processing unit, realizes from detecting;
The cross processing unit comprises the space division cross module of carrying out sky merotype intersection loopback, the time-division Cross module that the merotype crossed loops returns when carrying out; The cross processing unit is used under the control of described main control unit, with the current empty port that divides that links to each other with described branch road processing unit in the described space division cross module, be crossed to the first via of described time-division Cross module from described space division cross module, and at the time-division of first via port loopback, until finish to the current empty traversal of intersecting loopback of dividing all corresponding time-division ports of port; At the next empty port that divides, continue to described next empty traversal of dividing all corresponding time-division ports of port to carry out to intersect loopback, until the traversal of finishing the intersection loopback of all corresponding time-division ports of having time branch port;
The branch road processing unit is used under the control of described main control unit, and to the link of loopback between branch road processing unit and the cross processing unit, and the link of cross processing unit internal chiasma loopback carries out continuity testing.
Wherein, described branch road processing unit is further used for the continuity testing order of receiving that described main control unit issues, for the link of loopback generates unique character string and writes transmitting terminal; Read character string from the receiving terminal corresponding with described transmitting terminal, extract the character string that writes, and mate with the character string that reads, matching result is reported main control unit.
Wherein, described branch road processing unit is further used for the continuity testing order of receiving that described main control unit issues, and generates unique character string and writes transmitting terminal for intersecting the link of loopback; Read character string from the receiving terminal corresponding with described transmitting terminal, extract the character string that writes, and mate with the character string that reads, matching result is reported main control unit.
Wherein, this system also comprises: the optical link processing unit, be used under the control of described main control unit, and to the direction loopback of described cross processing unit, and return at the light choma of optical link processing unit self inboard;
Described main control unit is further used for controlling the collaborative test of described optical link processing unit, described cross processing unit and described branch road processing unit, realizes from detecting.
Wherein, described branch road processing unit, be further used for selecting in the time-division Cross module connective normal two time-division ports to carry out bidirectional crossed, and will be wherein one tunnel time-division port be crossed to current empty branch port in the space division cross module that links to each other with the branch road processing unit, the current sky that another road time-division port is crossed in the space division cross module that links to each other with the optical link processing unit divides port, carries out described detection of connectivity; Under connective normal condition, described branch road processing unit, it is described bidirectional crossed to be further used for continue selecting in the time-division Cross module connective normal two time-division ports to carry out, until finish to space division cross module that the optical link processing unit links to each other in traversal and the detection of connectivity of the branch port of having time; Perhaps,
Under connective abnormal state, described optical link processing unit is further used for the direction loopback to the space division cross module, and returns at the light choma of optical link processing unit self inboard; Described branch road processing unit, be further used under the loopback situation, it is bidirectional crossed continue to select in the time-division Cross module connective normal two time-division ports to carry out, until finish to space division cross module that the optical link processing unit links to each other in traversal and the detection of connectivity of the branch port of having time.
Wherein, described branch road processing unit is further used for the continuity testing order of receiving that main control unit issues, for the link that intersects generates unique character string and writes transmitting terminal; Read character string from the receiving terminal corresponding with described transmitting terminal, extract the character string that writes, and mate with the character string that reads; Matching result is reported main control unit, realize described detection of connectivity.
A kind of complete machine is from the detection method, this method comprises: the cross processing unit specifically comprises under space division cross module and the time-division Cross module situation, under the control of main control unit, with the current empty port that divides that links to each other with the branch road processing unit in the space division cross module, be crossed to the first via of described time-division Cross module from described space division cross module, and at the time-division of first via port loopback, until finish to the current empty traversal of intersecting loopback of dividing all corresponding time-division ports of port; Afterwards, select the next empty port that divides, continuation to described next empty traversal of dividing all corresponding time-division ports of port to carry out to intersect loopback, until the traversal of finishing the intersection loopback of all corresponding time-division ports of having time branch port, collaborative test by cross processing unit and branch road processing unit, the branch road processing unit is to the link of loopback between branch road processing unit and the cross processing unit, and the link of cross processing unit internal chiasma loopback carries out continuity testing, realizes from detecting.
Wherein, by described collaborative test, the branch road processing unit carries out continuity testing to the link of loopback between branch road processing unit and the cross processing unit and specifically comprises:
After the branch road processing unit is received the continuity testing order that main control unit issues, for the link of loopback generates unique character string and writes transmitting terminal; Read character string from the receiving terminal corresponding with described transmitting terminal, extract the character string that writes, and mate with the character string that reads, matching result is reported main control unit.
Wherein, by described collaborative test, the branch road processing unit carries out continuity testing to the link of cross processing unit internal chiasma loopback and specifically comprises:
After the branch road processing unit is received the continuity testing order that main control unit issues, generate unique character string and write transmitting terminal for intersecting the link of loopback; Read character string from the receiving terminal corresponding with described transmitting terminal, extract the character string that writes, and mate with the character string that reads, matching result is reported main control unit.
Wherein, this method also comprises: under the control of main control unit, collaborative test by optical link processing unit, cross processing unit and branch road processing unit, the branch road processing unit is to the link of loopback between optical link processing unit and the cross processing unit, and the link of optical link processing unit internal loopback carries out continuity testing, realizes from detecting.
Wherein, the branch road processing unit is to the link of loopback between optical link processing unit and the cross processing unit, and the link of optical link processing unit internal loopback carries out continuity testing and specifically comprises:
Connective normal two time-division ports carry out bidirectional crossed in the selection time-division Cross module, and will be wherein one tunnel time-division port be crossed to current empty branch port in the space division cross module that links to each other with the branch road processing unit, after another road time-division port is crossed to current empty in the space division cross module that links to each other with the optical link processing unit and divides port, carry out described detection of connectivity;
If connective normal, it is described bidirectional crossed then to continue to select in the time-division Cross module connective normal two time-division ports to carry out, until finish to space division cross module that the optical link processing unit links to each other in traversal and the detection of connectivity of the branch port of having time; Otherwise, the optical link processing unit is to the direction loopback of space division cross module, and after the light choma of optical link processing unit self inboard returns, it is bidirectional crossed continue to select in the time-division Cross module connective normal two time-division ports to carry out again, until finish to space division cross module that the optical link processing unit links to each other in traversal and the detection of connectivity of the branch port of having time;
Wherein, described detection of connectivity is: after the branch road processing unit is received the continuity testing order that main control unit issues, for the link that intersects generates unique character string and writes transmitting terminal; Read character string from the receiving terminal corresponding with described transmitting terminal, extract the character string that writes, and mate with the character string that reads, matching result is reported main control unit.
The present invention is under the control of main control unit, the cross processing unit carries out the intersection loopback of air separation/time division pattern in the mode of traversal, collaborative test by cross processing unit and branch road processing unit, the branch road processing unit is to the link of loopback between branch road processing unit and the cross processing unit, and the link of cross processing unit internal chiasma loopback carries out continuity testing, realizes from detecting.
Adopt the present invention, by test cell built-in in the SDH equipment, such as main control unit, the collaborative test of cross processing unit and branch road processing unit, automatically finish comprising the own state of professional related chip on each SDH network element, the chip chamber connection status, and the detection of service connected state between plate, this method can be widely used in SDH/ synchronous optical network (SONET, Synchronous Optical NETwork)/test fast based on multi-service transport platform (MSTP, Multi-Service Transport Platform) the whole set equipment production line of SDH, equipment is opened the preceding quick self-test of complete machine operating mode etc.
Description of drawings
Fig. 1 is the networking test schematic diagram of existing test SDH network element;
Fig. 2 is the composition structural representation of system of the present invention;
Fig. 3 is the system test schematic diagram of the present invention's one system embodiment;
The realization flow schematic diagram of Fig. 4 the inventive method.
Embodiment
Basic thought of the present invention is: under the control of main control unit, the cross processing unit carries out the intersection loopback of air separation/time division pattern in the mode of traversal, collaborative test by cross processing unit and branch road processing unit, the branch road processing unit is to the link of loopback between branch road processing unit and the cross processing unit, and the link of cross processing unit internal chiasma loopback carries out continuity testing, realizes from detecting.
Be described in further detail below in conjunction with the enforcement of accompanying drawing to technical scheme.
As shown in Figure 2, a kind of overall self-detecting system, this system comprises: main control unit, cross processing unit, branch road processing unit.Wherein, main control unit is used for the collaborative test of control cross processing unit and branch road processing unit, realizes from detecting.The cross processing unit is used for carrying out the intersection loopback of air separation/time division pattern in the mode of traversal under the control of main control unit.The branch road processing unit is used under the control of main control unit, and to the link of loopback between branch road processing unit and the cross processing unit, and the link of cross processing unit internal chiasma loopback carries out continuity testing.
Here, the cross processing unit is further used for the loopback order of receiving that main control unit issues, the current empty port loopback that divides that is linking to each other with the branch road processing unit.The branch road processing unit is further used for the continuity testing order of receiving that main control unit issues, for the link of loopback generates unique character string and writes transmitting terminal; Read character string from the receiving terminal corresponding with transmitting terminal, extract the character string that writes, and mate with the character string that reads, matching result is reported main control unit.Wherein, when the character string that writes during with the string matching of reading, the connectivity of link of this loopback is normal.
Here, the cross processing unit specifically comprises space division cross module and time-division Cross module.Wherein, the space division cross module is used for carrying out the intersection loopback of sky merotype; The intersection loopback of merotype when the time-division Cross module is used for carrying out.
The cross processing unit is further by space division cross module and time-division Cross module, carry out the intersection loopback of air separation/time division pattern in the mode of traversal, be specially: with the current empty port that divides that links to each other with the branch road processing unit in the space division cross module, be crossed to the first via of time-division Cross module from the space division cross module, and at the time-division of first via port loopback, until finish to the current empty traversal of intersecting loopback of dividing all corresponding time-division ports of port; At the next empty port that divides, continue to next empty traversal of dividing all corresponding time-division ports of port to carry out to intersect loopback, until the traversal of finishing the intersection loopback of all corresponding time-division ports of having time branch port.
Here, the branch road processing unit is further used for the continuity testing order of receiving that main control unit issues, and generates unique character string and writes transmitting terminal for intersecting the link of loopback; Read character string from the receiving terminal corresponding with transmitting terminal, extract the character string that writes, and mate with the character string that reads, matching result is reported main control unit.Wherein, when the character string that writes during with the string matching of reading, it is normal that this intersects the connectivity of link of loopback.
A kind of overall self-detecting system, this system also comprises: the optical link processing unit is used under the control of main control unit, to the direction loopback of cross processing unit, and returns at the light choma of optical link processing unit self inboard.Main control unit is further used for controlling the collaborative test of optical link processing unit, cross processing unit and branch road processing unit, realizes from detecting.
Here, the cross processing unit specifically comprises space division cross module and time-division Cross module.Wherein, the space division cross module is used for carrying out the intersection loopback of sky merotype; The intersection loopback of merotype when the time-division Cross module is used for carrying out.
The branch road processing unit is further used for selecting in the time-division Cross module connective normal two time-division ports to carry out bidirectional crossed, and will be wherein one tunnel time-division port be crossed to current empty branch port in the space division cross module that links to each other with the branch road processing unit, the current sky that another road time-division port is crossed in the space division cross module that links to each other with the optical link processing unit divides port, carries out detection of connectivity.Below corresponding to the different testing results of detection of connectivity, respectively branch road processing unit and optical link processing unit are set forth.
Under connective normal condition, it is described bidirectional crossed that the branch road processing unit is further used for continue selecting in the time-division Cross module connective normal two time-division ports to carry out, until finish to space division cross module that the optical link processing unit links to each other in traversal and the detection of connectivity of the branch port of having time.
Under connective abnormal state, the optical link processing unit is further used for the direction loopback to the space division cross module, and returns at the light choma of optical link processing unit self inboard.The branch road processing unit, be further used under the loopback situation, it is bidirectional crossed continue to select in the time-division Cross module connective normal two time-division ports to carry out, until finish to space division cross module that the optical link processing unit links to each other in traversal and the detection of connectivity of the branch port of having time.
Here, the branch road processing unit is further used for the continuity testing order of receiving that main control unit issues, for the link that intersects generates unique character string and writes transmitting terminal; Read character string from the receiving terminal corresponding with transmitting terminal, extract the character string that writes, and mate with the character string that reads; Matching result is reported main control unit, the above-mentioned detection of connectivity of specific implementation.Wherein, when the character string that writes during with the string matching of reading, the connectivity of link of intersection is normal.
In sum, the present invention mainly comprises: the ASIC special chip of analyzing professional process in the SDH equipment, SDH network elements such as Key Circuit device, for each component units design of SDH realizes test cell, such as main control unit, cross processing unit and branch road processing unit, and be built in separately in the operating software version, during system test function to be activated, each built-in test cell starts and collaborative work, the device that passes through in conjunction with business, complete machine SDH equipment is carried out working condition measurement, after to be tested the finishing, output test result, thereby rapid analysis has the fault that the device that may lose efficacy or production defective cause.The formula loopback intersects and the loop fuction of regenerator section/multiplex section/higher order path chip by SDH air separation/time division cross matrix is traveled through, the overhead field that is used in combination SDH equipment again carries out continuity testing to above-mentioned loopback, can reach the purpose that SDH equipment complete machine operating mode is detected.Adopt automatic test, the analytical plan that possesses the expert diagnosis function provided by the present invention, can solve the fault that new equipment may exist in the production of SDH equipment scale effectively, and can carry out fast detecting, location, raise the efficiency.
System embodiment: be example with 4 light mouth STM-1 Optical Line Board OLs and 32 road E1 tributary cards, be illustrated in figure 3 as the system test schematic diagram of native system embodiment, wherein STM-1 is the abbreviation of Synchronous Transport Module Level 1, is a kind of 155M synchronous transfer mode; E1 is a kind of PCM signaling that comprises 32 road 64kbits/second.Among Fig. 3, main control unit is used for finishing test process control, test result analysis, test result output etc.; Branch road processing unit, optical link processing unit, cross processing unit etc., the order that the execution main control unit issues is also returned execution result.In this way, the cooperative cooperating between main control unit control branch road processing unit, cross processing unit and the optical link processing unit is to realize test automatically.Below respectively branch road processing unit, optical link processing unit, cross processing unit are specifically addressed.
PDH (Pseudo-synchronous Digital Hierarchy) in the branch road processing unit (PDH, Plesiochronous Digital Hierarchy) branch road module is for generation of PDH E1 signal.Low order in the branch road processing unit is shone upon/is gone and shines upon processing module, be used for finishing functions such as PDH E1 signal map that PDH branch road module is produced/go mapping processing, shining upon/going in the mapping, comprising: generate unique expense J2 byte, transmission, reception expense J2 byte.This expense J2 byte is: above-mentioned in order to finish unique character string that detection of connectivity generates.
Space division cross module in the cross processing unit is used for the annexation according to dynamic appointment, such as certain empty annexation of dividing port and branch road processing unit of above-mentioned space division cross module, to finish the functions such as cross scheduling to empty separate service signal.The time-division Cross module is used for the annexation according to dynamic appointment, such as certain empty annexation of dividing port to be crossed to certain time-division port of time-division Cross module of above-mentioned space division cross module, to finish the functions such as cross scheduling to the time-division service signal.
STM-1 regenerator section/multiplex section in the optical link processing unit/higher order path high-order overhead processing module is used for the section of finishing/path overhead processing, and inwardly, the functions such as signal loop back processing being in the outside.Wherein, refer to towards inloop: the loopback of optical link processing unit sidelight mouth in the optical link processing unit self; Refer to towards outloop: the optical link processing unit is to the loopback of space division cross module direction.The optical interface module is used for light/functions such as signal of telecommunication conversion.
Among Fig. 3, represent the position at loopback place with the arrow of band arc, below the loopback of each position is set forth respectively.
The loopback of space division cross module is: will enter the signal that space division cross module hollow divides the port Inbound and divide the port outgoing direction to send from this sky.
The loopback of time-division Cross module is: the signal that will enter time-division port Inbound in the time-division Cross module sends from this time-division port outgoing direction.Here, the granularity that the time-division intersects can be to exchange by the SDH/SONET row, also can be to exchange by virtual container (VC12, Virtual Container 12), and the loopback of Ben Chu position divides the capacity such as grade that links to each other loopback with itself and sky.
STM-1 regenerator section/multiplex section/higher order path high-order overhead processing module is towards the loopback of space division cross module direction.
The optical interface module uses optical fiber that tabula rasa light mouth is carried out loopback.
Among Fig. 3, also comprise various forms of intersections, a kind of cross modal is the intersection of space division cross module, to finish space division cross.For instance, such as the SP1 port is carried out bidirectional crossed the connection with the TP1 port; The SPm port is carried out bidirectional crossed the connection with the TPm port; SP1 port and SPm port are carried out bidirectional crossed be connected etc.Another kind of cross modal is the intersection of time-division Cross module, intersects to finish the time-division.For instance, such as TP1 port and TPm port being carried out bidirectional crossed be connected etc.
As shown in Figure 4, a kind of complete machine is from the detection method, and this method may further comprise the steps:
At the technical scheme that is constituted by step 101～step 103, here, in the step 103, by the collaborative test of cross processing unit and branch road processing unit, the branch road processing unit carries out continuity testing to the link of loopback between branch road processing unit and the cross processing unit and specifically comprises:
After the loopback order that main control unit issues is received in step 10311, cross processing unit, the current empty port loopback that divides that is linking to each other with the branch road processing unit.
After step 10312, branch road processing unit are received the continuity testing order that main control unit issues, for the link of loopback generates unique character string and writes transmitting terminal; Read character string from the receiving terminal corresponding with transmitting terminal, extract the character string that writes, and mate with the character string that reads, matching result is reported main control unit.
Wherein, when the character string that writes during with the string matching of reading, the connectivity of link of this loopback is normal.
Here, the cross processing unit comprises that specifically the concrete processing procedure of step 102 comprises under space division cross module and the time-division Cross module situation:
Step 1021, with the current empty port that divides that links to each other with the branch road processing unit in the space division cross module, be crossed to the first via of time-division Cross module from the space division cross module, and at the time-division of first via port loopback, until finish to the current empty traversal of intersecting loopback of dividing all corresponding time-division ports of port.
Step 1022, select the next empty port that divides, continue to next empty traversal of dividing all corresponding time-division ports of port to carry out to intersect loopback, until the traversal of finishing the intersection loopback of all corresponding time-division ports of having time branch port.
Correspondingly, in the step 103, by the collaborative test of cross processing unit and branch road processing unit, the branch road processing unit carries out continuity testing to the link of cross processing unit internal chiasma loopback and specifically comprises:
After step 10321, branch road processing unit are received the continuity testing order that main control unit issues, generate unique character string and write transmitting terminal for intersecting the link of loopback; Read character string from the receiving terminal corresponding with transmitting terminal, extract the character string that writes, and mate with the character string that reads, matching result is reported main control unit.
Wherein, when the character string that writes and described string matching of reading, the connectivity of link of this intersection loopback is normal.
A kind of complete machine is from the detection method, this method also comprises: under the control of main control unit, collaborative test by optical link processing unit, cross processing unit and branch road processing unit, the branch road processing unit is to the link of loopback between optical link processing unit and the cross processing unit, and the link of optical link processing unit internal loopback carries out continuity testing, realizes from detecting.
Here, the cross processing unit specifically comprises under space division cross module and the time-division Cross module situation, the branch road processing unit is to the link of loopback between optical link processing unit and the cross processing unit, and the link of optical link processing unit internal loopback carries out continuity testing and specifically comprises:
Connective normal two time-division ports carry out bidirectional crossed in the selection time-division Cross module, and will be wherein one tunnel time-division port be crossed to current empty branch port in the space division cross module that links to each other with the branch road processing unit, after another road time-division port is crossed to current empty in the space division cross module that links to each other with the optical link processing unit and divides port, carry out detection of connectivity.
This detection of connectivity is specially: after the branch road processing unit is received the continuity testing order that main control unit issues, for the link that intersects generates unique character string and writes transmitting terminal; Read character string from the receiving terminal corresponding with transmitting terminal, extract the character string that writes, and mate with the character string that reads, matching result is reported main control unit.Wherein, when the character string that writes during with the string matching of reading, the connectivity of link of intersection is normal; When the character string that writes did not match with the character string that reads, the connectivity of link of intersection was undesired.
Wherein, when connectedness just often, connective normal two time-division ports carry out above-mentioned bidirectional crossed in the continuation selection time-division Cross module, and will be wherein one tunnel time-division port be crossed to next empty branch port in the space division cross module that links to each other with the branch road processing unit, after another road time-division port is crossed to next empty in the space division cross module that links to each other with the optical link processing unit and divides port, carry out detection of connectivity.Until finish to space division cross module that the optical link processing unit links to each other in traversal and the detection of connectivity of the branch port of having time.
When connectedness is undesired, the optical link processing unit is to the direction loopback of space division cross module, and after the light choma of optical link processing unit self inboard returns, continue to select again under the loopback situation that connective normal two time-division ports carry out above-mentioned bidirectional crossed in the time-division Cross module, and will be wherein one tunnel time-division port be crossed to next empty branch port in the space division cross module that links to each other with the branch road processing unit, after another road time-division port is crossed to next empty in the space division cross module that links to each other with the optical link processing unit and divides port, carry out detection of connectivity.Until finish to space division cross module that the optical link processing unit links to each other in traversal and the detection of connectivity of the branch port of having time.
Method embodiment is: a whole-machine test method flow process of the present invention mainly comprises following steps:
Step 201, build the system test environment.
Here, test environment comprises: the STM-1 Optical Line Board OL of 32 tunnel E1 tributary card, master control borad, clock board, 4 light mouths, power panel etc., low-order and high-order cross board etc.Build finish after, use optical fiber to carry out loopback to 4 light mouths of STM-1 line unit, namely will send hoop to each light mouth and be back to its receiving terminal.Here, the E1 tributary card is the specific implementation of above-mentioned branch road processing unit, master control borad is the specific implementation of above-mentioned main control unit, and the STM-1 Optical Line Board OL is the specific implementation of above-mentioned optical link processing unit, and the low-order and high-order cross board is the specific implementation of above-mentioned cross processing unit.
Step 202, master control borad issue the loopback order and give the low-order and high-order cross board, and the sky that links to each other with the E1 tributary card at the low-order and high-order cross board divides the port loopback.
Step 203, master control borad issue the continuity testing order and give the E1 tributary card, follow the trail of character string for each bar VC12 branch road generates unique J2, write transmitting terminal; After waiting for that receive direction is stable, read receive direction J2 and follow the trail of character string; J2 tracking character string to transmitting terminal and receiving terminal is mated, and reports matching result to master control borad.
Here, J2 tracking character string is above-mentioned in order to finish unique character string that detection of connectivity generates.
Step 204, divide Cross module to divide port with the sky that the E1 tributary card links to each other low-order and high-order cross board hollow, be crossed to the first via of time-division Cross module in the low-order and high-order cross board, and do loop back processing being at first via time-division port.
Here, in step 204, the selection of time-division port is adopted the method for traversal, successively all time-division port traversals are finished, simultaneously, divide port at sky, do that accordingly the corresponding empty port that divides of E1 tributary card is traversed successively, and the sky that will traverse divides port to be connected to corresponding time-division port, does loop back processing being at the time-division port.
Step 205, repeating step 203 are to carry out the coupling that J2 follows the trail of character string.
Whether step 206, repeating step 204 and step 205 until the traversal of finishing the intersection loopback of all corresponding time-division ports of having time branch port, mate to judge by transmitting-receiving J2 is followed the trail of character string whether this connecting path is working properly.
Here, after time-division port traversal finished, continue below to finish to testing with the STM-1 Optical Line Board OL connectedness that low-order and high-order cross board hollow divides Cross module to be connected.
In step 207, the selection above-mentioned steps, connective normal 2 time-division ports in the time-division Cross module, are done two-way connection with these 2 ports; In the space division cross module, divide port by two-way one of them the time-division port that is connected to of space division cross module for sky the E1 tributary card.
Step 208, with above-mentioned another time-division port by the two-way corresponding empty port that divides that is connected to STM-1 Optical Line Board OL to be tested of space division cross module.
Step 209, repeating step 203 to carry out the coupling that J2 follows the trail of character string, if normal, illustrate that whole path is connective normal, changes execution in step 212 over to; If undesired, change execution in step 210 over to.
Step 210, master control borad transmitting order to lower levels are to the STM-1 Optical Line Board OL, and the STM-1 regenerator section/multiplex section in the STM-1 Optical Line Board OL/higher order path high-order overhead processing module is done loopback inwards.
Step 211, repeated execution of steps 203 to carry out the coupling that J2 follows the trail of character string, if failure illustrates that fault is present in the STM-1 Optical Line Board OL and low-order and high-order cross board hollow is divided Cross module, record this continuity testing result.
Step 212, repeated execution of steps 208 and step 209.And, in step 209, to the STM-1 Optical Line Board OL the corresponding empty selection that divides port adopt the method for traversal, successively all skies are divided the port traversal to finish, institute's branch port of having time travels through to be finished test and namely finishes.
The above is preferred embodiment of the present invention only, is not for limiting protection scope of the present invention.
Claims (11)
1. an overall self-detecting system is characterized in that, this system comprises: main control unit, cross processing unit, branch road processing unit; Wherein,
Main control unit is used for the collaborative test of control described cross processing unit and described branch road processing unit, realizes from detecting;
The cross processing unit comprises the space division cross module of carrying out sky merotype intersection loopback, the time-division Cross module that the merotype crossed loops returns when carrying out; The cross processing unit is used under the control of described main control unit, with the current empty port that divides that links to each other with described branch road processing unit in the described space division cross module, be crossed to the first via of described time-division Cross module from described space division cross module, and at the time-division of first via port loopback, until finish to the current empty traversal of intersecting loopback of dividing all corresponding time-division ports of port; At the next empty port that divides, continue to described next empty traversal of dividing all corresponding time-division ports of port to carry out to intersect loopback, until the traversal of finishing the intersection loopback of all corresponding time-division ports of having time branch port;
The branch road processing unit is used under the control of described main control unit, and to the link of loopback between branch road processing unit and the cross processing unit, and the link of cross processing unit internal chiasma loopback carries out continuity testing.
2. system according to claim 1 is characterized in that, described branch road processing unit is further used for the continuity testing order of receiving that described main control unit issues, for the link of loopback generates unique character string and writes transmitting terminal; Read character string from the receiving terminal corresponding with described transmitting terminal, extract the character string that writes, and mate with the character string that reads, matching result is reported main control unit.
3. system according to claim 1 is characterized in that, described branch road processing unit is further used for the continuity testing order of receiving that described main control unit issues, and generates unique character string and writes transmitting terminal for intersecting the link of loopback; Read character string from the receiving terminal corresponding with described transmitting terminal, extract the character string that writes, and mate with the character string that reads, matching result is reported main control unit.
4. system according to claim 1, it is characterized in that this system also comprises: the optical link processing unit is used under the control of described main control unit, to the direction loopback of described cross processing unit, and return at the light choma of optical link processing unit self inboard;
Described main control unit is further used for controlling the collaborative test of described optical link processing unit, described cross processing unit and described branch road processing unit, realizes from detecting.
5. system according to claim 4, it is characterized in that, described branch road processing unit, be further used for selecting in the time-division Cross module connective normal two time-division ports to carry out bidirectional crossed, and will be wherein one tunnel time-division port be crossed to current empty branch port in the space division cross module that links to each other with the branch road processing unit, the current sky that another road time-division port is crossed in the space division cross module that links to each other with the optical link processing unit divides port, carries out described detection of connectivity; Under connective normal condition, described branch road processing unit, it is described bidirectional crossed to be further used for continue selecting in the time-division Cross module connective normal two time-division ports to carry out, until finish to space division cross module that the optical link processing unit links to each other in traversal and the detection of connectivity of the branch port of having time; Perhaps,
Under connective abnormal state, described optical link processing unit is further used for the direction loopback to the space division cross module, and returns at the light choma of optical link processing unit self inboard; Described branch road processing unit, be further used under the loopback situation, it is bidirectional crossed continue to select in the time-division Cross module connective normal two time-division ports to carry out, until finish to space division cross module that the optical link processing unit links to each other in traversal and the detection of connectivity of the branch port of having time.
6. system according to claim 5 is characterized in that, described branch road processing unit is further used for the continuity testing order of receiving that main control unit issues, for the link that intersects generates unique character string and writes transmitting terminal; Read character string from the receiving terminal corresponding with described transmitting terminal, extract the character string that writes, and mate with the character string that reads; Matching result is reported main control unit, realize described detection of connectivity.
7. a complete machine is from the detection method, it is characterized in that, this method comprises: the cross processing unit specifically comprises under space division cross module and the time-division Cross module situation, under the control of main control unit, with the current empty port that divides that links to each other with the branch road processing unit in the space division cross module, be crossed to the first via of described time-division Cross module from described space division cross module, and at the time-division of first via port loopback, until finish to the current empty traversal of intersecting loopback of dividing all corresponding time-division ports of port; Afterwards, select the next empty port that divides, continuation to described next empty traversal of dividing all corresponding time-division ports of port to carry out to intersect loopback, until the traversal of finishing the intersection loopback of all corresponding time-division ports of having time branch port, collaborative test by cross processing unit and branch road processing unit, the branch road processing unit is to the link of loopback between branch road processing unit and the cross processing unit, and the link of cross processing unit internal chiasma loopback carries out continuity testing, realizes from detecting.
8. method according to claim 7 is characterized in that, by described collaborative test, the branch road processing unit carries out continuity testing to the link of loopback between branch road processing unit and the cross processing unit and specifically comprises:
After the branch road processing unit is received the continuity testing order that main control unit issues, for the link of loopback generates unique character string and writes transmitting terminal; Read character string from the receiving terminal corresponding with described transmitting terminal, extract the character string that writes, and mate with the character string that reads, matching result is reported main control unit.
9. method according to claim 7 is characterized in that, by described collaborative test, the branch road processing unit carries out continuity testing to the link of cross processing unit internal chiasma loopback and specifically comprises:
After the branch road processing unit is received the continuity testing order that main control unit issues, generate unique character string and write transmitting terminal for intersecting the link of loopback; Read character string from the receiving terminal corresponding with described transmitting terminal, extract the character string that writes, and mate with the character string that reads, matching result is reported main control unit.
10. method according to claim 7, it is characterized in that, this method also comprises: under the control of main control unit, collaborative test by optical link processing unit, cross processing unit and branch road processing unit, the branch road processing unit is to the link of loopback between optical link processing unit and the cross processing unit, and the link of optical link processing unit internal loopback carries out continuity testing, realizes from detecting.
11. method according to claim 10 is characterized in that, the branch road processing unit is to the link of loopback between optical link processing unit and the cross processing unit, and the link of optical link processing unit internal loopback carries out continuity testing and specifically comprises:
Connective normal two time-division ports carry out bidirectional crossed in the selection time-division Cross module, and will be wherein one tunnel time-division port be crossed to current empty branch port in the space division cross module that links to each other with the branch road processing unit, after another road time-division port is crossed to current empty in the space division cross module that links to each other with the optical link processing unit and divides port, carry out described detection of connectivity;
If connective normal, it is described bidirectional crossed then to continue to select in the time-division Cross module connective normal two time-division ports to carry out, until finish to space division cross module that the optical link processing unit links to each other in traversal and the detection of connectivity of the branch port of having time; Otherwise, the optical link processing unit is to the direction loopback of space division cross module, and after the light choma of optical link processing unit self inboard returns, it is bidirectional crossed continue to select in the time-division Cross module connective normal two time-division ports to carry out again, until finish to space division cross module that the optical link processing unit links to each other in traversal and the detection of connectivity of the branch port of having time;
Wherein, described detection of connectivity is: after the branch road processing unit is received the continuity testing order that main control unit issues, for the link that intersects generates unique character string and writes transmitting terminal; Read character string from the receiving terminal corresponding with described transmitting terminal, extract the character string that writes, and mate with the character string that reads, matching result is reported main control unit.
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| CN1366393A (en) * | 2000-12-14 | 2002-08-28 | 美国阿尔卡塔尔资源有限合伙公司 | Wave length flexible light retransmission device used in bidirectional single optical fiber wave part multiplexing system testing |
| EP1727309A1 (en) * | 2005-05-27 | 2006-11-29 | Alcatel | Methods and apparatus for monitoring link integrity for signaling traffic over a path traversing hybrid ATM/ethernet infrastructure in support of packet voice service provisioning |
| CN101197733A (en) * | 2007-12-18 | 2008-06-11 | 中兴通讯股份有限公司 | Automatic detection method and device for network connectivity |
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| CN1366393A (en) * | 2000-12-14 | 2002-08-28 | 美国阿尔卡塔尔资源有限合伙公司 | Wave length flexible light retransmission device used in bidirectional single optical fiber wave part multiplexing system testing |
| EP1727309A1 (en) * | 2005-05-27 | 2006-11-29 | Alcatel | Methods and apparatus for monitoring link integrity for signaling traffic over a path traversing hybrid ATM/ethernet infrastructure in support of packet voice service provisioning |
| CN101197733A (en) * | 2007-12-18 | 2008-06-11 | 中兴通讯股份有限公司 | Automatic detection method and device for network connectivity |
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