CN101072136B - Method, device and system for detecting internal channel fault of communication network element - Google Patents
Method, device and system for detecting internal channel fault of communication network element Download PDFInfo
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- CN101072136B CN101072136B CN200710123362XA CN200710123362A CN101072136B CN 101072136 B CN101072136 B CN 101072136B CN 200710123362X A CN200710123362X A CN 200710123362XA CN 200710123362 A CN200710123362 A CN 200710123362A CN 101072136 B CN101072136 B CN 101072136B
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Abstract
The method includes steps: adding channels check-up module (CCM) to first chip and second chip; CCM of first chip sends channel check-up digit sequence (CCDS) or channel check-up normal digit sequence (CCNDS) to second chip; CCM of second chip detects whether CCDS or CCNDS is received correctly; if not, then second chip prompts that fault occurs inside channel of communication net element. The device includes the sending module and receiving check-up module. The system includes local terminal and opposite terminal. The local terminal includes local sending module and local receiving check-up module. The opposite terminal includes opposite terminal sending module and opposite terminal receiving check-up module. The invention can heck-up fault inside channel of communication net element in real time.
Description
Technical field
The present invention relates to network communication field, particularly a kind of methods, devices and systems that detect internal channel fault of communication network element.
Background technology
In communication system, repeater chip has important effect as the external interface unit of communication network element, and it mainly finishes the conversion of analog line signal and HW (mode of Highway-high speed serialization digital communication) signal: finish the conversion of network element internal HW signal to the analog line signal at sending direction; Finish of the conversion of analog line signal at receive direction to network element internal HW signal.General repeater chip inside is made up of with E1/T1Framer (Frame Handler) two big logical constructions LIU (Line Interface Unit-line interface unit).Generate the analog line signal at the sending direction repeater chip according to HW signal, clock signal and frame synchronizing signal, from the analog line signal, extract the HW signal and recover clock signal at the receive direction repeater chip.The HW signal generally adopts the unified synchronizing clock signals of whole network element to finish transmission and the reception of data at built-in system when network element internal transmission, exchange.At the delivering path of the inner HW signal of communication system as shown in Figure 1: repeater chip a/ repeater chip b is the HW signal with the analog line conversion of signals of receiving, and the HW signal is sent to the inter-process chip; The inter-process chip sends to repeater chip b/ opposite end, opposite end repeater chip a after the HW signal of receiving is handled; Repeater chip b/ repeater chip a is the analog line signal with the HW conversion of signals of receiving, and sends this analog line signal.Because trunk is received extraneous interference easily, so for the correct transmission of guarantee information at trunk, repeater chip provides functions such as data sync detection, data CRC check at the analog line data side.Lose or CRC check when makeing mistakes when data-frame sync, all can produce corresponding warning information.
Repeater chip is mainly finished the mutual conversion of analog line signal and HW signal, because the analog line signal is subjected to extraneous interference easily in transmission course, so the receiving terminal at repeater chip determines that by the frame head that detects the analog line signal whether signal receives normal, will produce corresponding warning information if can not detect frame head.Whether the external transmission passage that can detect repeater chip by this method in time is normal.But this detection method has only been carried out the frame head detection at the artificial line trackside, because network element internal has the unified time slot synchronization mechanism, so repeater chip does not generally provide functions such as data sync detection and data CRC check at inner HW interface, the HW signal that recovers from analog signal does not carry out the passage detection when network element internal transmits like this, if network element internal exists hardware fault or welding existing problems, this channel failure can not be detected by repeater chip in time.Simultaneously in communication system, repeater chip is connected the transmission that realizes the Hw data with the inter-process chip by inside, inner connection may comprise being connected of veneer and motherboard, inside cable connection, internal optical fiber connection etc., wherein the fault of any one part or chips welding or printed board go wrong and all can cause communication disruption between repeater chip and the exchange chip, may single-pass or no audio for pure speech business, can cause service disconnection for other application, and this fault can't detect directly all generally.
Summary of the invention
In order to solve the problem that internal channel fault of communication network element detects, the embodiment of the invention provides a kind of method that detects internal channel fault of communication network element, and described method is to increase channel detecting module at first chip and second chip, and carries out following steps:
The channel detecting module of described local terminal repeater chip detects Serial No. or passage detection normal digital sequence to described opposite end repeater chip sendaisle; That described passage detection Serial No. or passage detection normal digital sequence take is untapped detection time slot T in the high speed serialization digital communication signal;
Whether the channel detecting module of the high speed serialization Interface for digital communication of described opposite end repeater chip detects has received correctly that described passage detects Serial No. or passage detects the normal digital sequence, if correctly do not receive, breaking down in repeater chip prompting communication network element inner passage, then described opposite end, and detects Serial No. by described channel detecting module to the channel detecting module sendaisle of described local terminal repeater chip.
The beneficial effect of the embodiment of the invention: the embodiment of the invention is by increasing channel detecting module at first chip and second chip, can finish the fault detect of whole communication network element inner passage, reached the timely and effective property that internal channel fault of communication network element detects, reduced the influence of internal channel fault of communication network element detection the communication system operate as normal.
Description of drawings
Fig. 1 is the delivering path schematic diagram of the inner HW signal of communication system in the prior art;
Fig. 2 is the transmission schematic diagram at local terminal repeater chip and opposite end repeater chip increase channel detecting module detection internal channel fault of communication network element that the embodiment of the invention provides;
Fig. 3 is first kind of method flow diagram that detects internal channel fault of communication network element that the embodiment of the invention provides;
Fig. 4 is the transmission schematic diagram at repeater chip and inter-process chip increase channel detecting module detection internal channel fault of communication network element that the embodiment of the invention provides;
Fig. 5 is second kind of method flow diagram that detects internal channel fault of communication network element that the embodiment of the invention provides;
Fig. 6 is the structure chart of the device of the detection internal channel fault of communication network element that provides of the embodiment of the invention;
Fig. 7 is the structure chart of the system of the detection internal channel fault of communication network element that provides of the embodiment of the invention.
Embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
The embodiment of the invention increases channel detecting module at first chip and second chip, the channel detecting module of first chip can detect Serial No. A to the channel detecting module sendaisle of second chip or passage detects the normal digital sequence B, and the passage detection Serial No. A or the passage that also can receive the channel detecting module transmission of second chip simultaneously detect the normal digital sequence B.If the channel detecting module of first chip correctly receives passage detection Serial No. A or passage detection normal digital sequence B that the channel detecting module of second chip sends, the normal information of the first chip display communication network element internal passage then, and detect the normal digital sequence B to the channel detecting module sendaisle of second chip by channel detecting module; If the channel detecting module of first chip does not correctly receive passage detection Serial No. A or passage detection normal digital sequence B that the channel detecting module of second chip sends, then first chip produces receiving alarm information, detect internal channel fault of communication network element to second chip indication local terminal, and detect Serial No. A to the channel detecting module sendaisle of second chip by channel detecting module.Be that local terminal repeater chip, second chip are the opposite end repeater chip with first chip respectively below, and first chip is set forth the method for the detection internal channel fault of communication network element that the embodiment of the invention provides for example for repeater chip for inter-process chip, second chip.
When first chip be the local terminal repeater chip, when second chip is the opposite end repeater chip, the method for the detection internal channel fault of communication network element that the embodiment of the invention provides specifically may further comprise the steps, referring to Fig. 2 and Fig. 3:
Step 101: local terminal repeater chip a initialization;
Step 102: local terminal repeater chip a detects Serial No. A by channel detecting module to opposite end repeater chip b sendaisle, and local terminal receiving alarm information is set;
It can be character string combination, combination of numbers or the combination of digital padding string etc. that passage detects Serial No. A, but is not limited to these combinations;
Step 103: whether opposite end repeater chip b sense channel detection module has received correctly that passage detects Serial No. A, if then execution in step 104, otherwise execution in step 105;
Step 104: the normal information of opposite end repeater chip b display communication network element internal passage, and detect normal digital sequence B, execution in step 106 to local terminal repeater chip a sendaisle by channel detecting module;
It is to be different from the Serial No. that passage detects Serial No. A that passage detects the normal digital sequence B, can be character string combination, combination of numbers or the combination of digital padding string etc., but be not limited to these combinations;
Step 105: opposite end repeater chip b produces receiving alarm information, detects internal channel fault of communication network element to local terminal repeater chip a indication local terminal, and detects Serial No. A, execution in step 106 by channel detecting module to local terminal repeater chip a sendaisle;
Step 106: whether local terminal repeater chip a sense channel detection module has received correctly that passage detects Serial No. A or passage detects the normal digital sequence B, if then execution in step 107, otherwise execution in step 108;
Step 107: remove the receiving alarm information of local terminal repeater chip a, the normal information of local terminal repeater chip a display communication network element internal passage, and detect normal digital sequence B, execution in step 109 to opposite end repeater chip b sendaisle by channel detecting module;
Step 108: local terminal repeater chip a detects Serial No. A, execution in step 109 by channel detecting module to opposite end repeater chip b sendaisle;
Step 109: whether opposite end repeater chip b sense channel detection module has received correctly that passage detects Serial No. A or passage detects the normal digital sequence B, if then execution in step 110, otherwise execution in step 105;
Step 110: remove the receiving alarm information of opposite end repeater chip b, the normal information of opposite end repeater chip b display communication network element internal passage, and detect normal digital sequence B, execution in step 106 to local terminal repeater chip a sendaisle by channel detecting module.
In the application of reality, the HW signal of each 2M is made up of the time slot of 32 64Kbps, part in the time slot of 32 64Kbps of HW data occupancy of every analog line signal recovery, other time slot is in the inner not use of communication system, the passage that the channel detecting module of local terminal repeater chip and opposite end repeater chip sends detects Serial No. A or passage and detects in the HW signal that the normal digital sequence B takies 2M these and not have the time slot that uses, and these time slots are called as detection time slot T.
Present embodiment increases channel detecting module by the HW interface section at local terminal repeater chip and opposite end repeater chip, can finish of the fault detect of local terminal repeater chip to the whole communication network element of opposite end repeater chip inner passage, reached the timely and effective property that internal channel fault of communication network element detects, reduced the influence of internal channel fault of communication network element detection the communication system operate as normal.
When first chip be the inter-process chip, when second chip is repeater chip, the method for the detection internal channel fault of communication network element that the embodiment of the invention provides specifically may further comprise the steps, referring to Fig. 4 and Fig. 5:
Step 201: inter-process chip initiation;
Step 202: the inter-process chip detects Serial No. A by channel detecting module to repeater chip a sendaisle, and local terminal receiving alarm information is set;
It can be character string combination, combination of numbers or the combination of digital padding string etc. that passage detects Serial No. A, but is not limited to these combinations;
Step 203: whether repeater chip a sense channel detection module has received correctly that passage detects Serial No. A, if then execution in step 204, otherwise execution in step 205;
Step 204: the normal information of repeater chip a display communication network element internal passage, and detect normal digital sequence B, execution in step 206 to inner process chip sendaisle by channel detecting module;
It is to be different from the Serial No. that passage detects Serial No. A that passage detects the normal digital sequence B, can be character string combination, combination of numbers or the combination of digital padding string etc., but be not limited to these combinations;
Step 205: repeater chip a produces receiving alarm information, detects internal channel fault of communication network element to inner process chip indication local terminal, and detects Serial No. A, execution in step 206 by channel detecting module to inner process chip sendaisle;
Step 206: whether inter-process chip detection channel detecting module has received correctly that passage detects Serial No. A or passage detects the normal digital sequence B, if then execution in step 207, otherwise execution in step 208;
Step 207: remove the receiving alarm information of inter-process chip, the normal information of inter-process chip display communication network element internal passage, and detect normal digital sequence B, execution in step 209 to repeater chip a sendaisle by channel detecting module;
Step 208: the inter-process chip detects Serial No. A, execution in step 209 by channel detecting module to repeater chip a sendaisle;
Step 209: whether repeater chip a sense channel detection module has received correctly that passage detects Serial No. A or passage detects the normal digital sequence B, if then execution in step 210, otherwise execution in step 205;
Step 210: remove the receiving alarm information of repeater chip a, the normal information of repeater chip a display communication network element internal passage, and detect normal digital sequence B, execution in step 206 to inner process chip sendaisle by channel detecting module.
Present embodiment increases channel detecting module by HW interface section and the inter-process chip at repeater chip, can finish of the fault detect of inter-process chip to the whole communication network element internal transmission of repeater chip passage, reached the timely and effective property that internal channel fault of communication network element detects, reduced the influence of internal channel fault of communication network element detection the communication system operate as normal.
Referring to Fig. 6, the embodiment of the invention provides a kind of device that detects internal channel fault of communication network element, and this device comprises sending module and receives detection module;
Sending module is used for detecting Serial No. or passage detection normal digital sequence to receiving the detection module sendaisle;
Receive detection module and be used to detect to have received that whether correctly the passage that sending module sends detects Serial No. or passage detection normal digital sequence, if correctly do not receive, then receives detection module prompting communication network element inner passage and breaks down.
Receive detection module and comprise detecting unit and warning information generation unit;
Whether correctly detecting unit is used to detect has received that the passage that sending module sends detects Serial No. or passage detection normal digital sequence, and testing result is sent to the warning information generation unit;
The warning information generation unit is used to receive passage that expression that detecting unit sends do not receive correctly that sending module sends and detects the testing result that Serial No. or passage detect the normal digital sequence, and according to this testing result generation receiving alarm information, indication detects internal channel fault of communication network element.
The detection module sendaisle detects Serial No. to present embodiment or passage detects the normal digital sequence to receiving by sending module, can carry out real-time ground to internal channel fault of communication network element and detect, reduce the influence of internal channel fault of communication network element detection the communication system operate as normal.
Referring to Fig. 7, the embodiment of the invention provides a kind of system that detects internal channel fault of communication network element, this system comprises local terminal and opposite end, and local terminal comprises that local terminal sending module and local terminal receive detection module, and the opposite end comprises that opposite end sending module and opposite end receive detection module;
The local terminal sending module is used for receiving the detection module sendaisle to the opposite end and detects Serial No. or passage detection normal digital sequence;
The opposite end receives detection module and is used to detect to have received that whether correctly the passage that the local terminal sending module sends detects Serial No. or passage detection normal digital sequence, passage detects Serial No. or passage detects the normal digital sequence if correctly do not receive, then break down in opposite end reception detection module prompting communication network element inner passage, and to opposite end sending module sendaisle failure message;
The opposite end sending module receives the detection module sendaisle to local terminal and detects Serial No. after being used to receive the channel failure message of opposite end reception detection module transmission;
Local terminal receives detection module and is used to detect to have received that whether correctly the passage that the opposite end sending module sends detects Serial No., do not detect Serial No. if correctly receive passage, then break down in local terminal reception detection module prompting communication network element inner passage, and to local terminal sending module sendaisle failure message.
The opposite end receives detection module and comprises detecting unit and warning information generation unit;
Whether correctly detecting unit is used to detect has received that the passage that the local terminal sending module sends detects Serial No. or passage detection normal digital sequence, and testing result is sent to the warning information generation unit;
The warning information generation unit is used to receive passage that expression that detecting unit sends do not receive correctly that the local terminal sending module sends and detects the testing result that Serial No. or passage detect the normal digital sequence, and according to this testing result generation receiving alarm information, indication detects internal channel fault of communication network element, to opposite end sending module sendaisle failure message.
Local terminal receives detection module and comprises detecting unit and warning information generation unit;
Whether correctly detecting unit is used to detect has received that the passage that the opposite end sending module sends detects Serial No., and testing result is sent to the warning information generation unit;
The warning information generation unit is used to receive the testing result that passage that expression that detecting unit sends do not receive correctly that the opposite end sending module sends detects Serial No., and according to this testing result generation receiving alarm information, indication detects internal channel fault of communication network element, to local terminal sending module sendaisle failure message.
The operation principle of the system of the detection internal channel fault of communication network element that present embodiment provides is: the local terminal sending module receives the detection module sendaisle to the opposite end and detects Serial No. or passage detection normal digital sequence; The opposite end receives detection module and detects whether received correctly that passage detects Serial No. or passage detects the normal digital sequence, passage detects Serial No. or passage detects the normal digital sequence if correctly do not receive, then break down in opposite end reception detection module prompting communication network element inner passage, and to opposite end sending module sendaisle failure message; After the opposite end sending module receives channel failure message, receive the detection module sendaisle to local terminal and detect Serial No.; Local terminal receives detection module and detects whether received correctly that passage detects Serial No., do not detect Serial No. if correctly receive passage, then break down in local terminal reception detection module prompting communication network element inner passage, and to local terminal sending module sendaisle failure message.
Present embodiment receives the cooperation of detection module by local terminal sending module and opposite end, and the cooperation of opposite end sending module and local terminal reception detection module, can finish internal channel fault of communication network element is carried out the detection of real-time ground, in case break down in the communication network element inner passage, just can detect in time, and produce fault warning information notice upper system and carry out troubleshooting, guaranteed the normal operation of whole communication system.
The embodiment of the invention increases channel detecting module by the Hw interface section at local terminal repeater chip and opposite end repeater chip, and increase channel detecting module in the HW interface section of repeater chip and inter-process chip, can finish the local terminal repeater chip to the opposite end repeater chip, and the inter-process chip is to the fault detect of the whole communication network element of repeater chip inner passage, reached the timely and effective property that internal channel fault of communication network element detects, reduced the influence of internal channel fault of communication network element detection the communication system operate as normal.
Above-described embodiment is a more preferably embodiment of the present invention, and common variation that those skilled in the art carries out in the technical solution of the present invention scope and replacement all should be included in protection scope of the present invention.
Claims (2)
1. a method that detects internal channel fault of communication network element is characterized in that, partly increases channel detecting module at the high speed serialization Interface for digital communication of local terminal repeater chip and opposite end repeater chip, and carries out following steps:
The channel detecting module of described local terminal repeater chip detects Serial No. or passage detection normal digital sequence to described opposite end repeater chip sendaisle; That described passage detection Serial No. or passage detection normal digital sequence take is untapped detection time slot T in the high speed serialization digital communication signal;
Whether the channel detecting module of the high speed serialization Interface for digital communication of described opposite end repeater chip detects has received correctly that described passage detects Serial No. or passage detects the normal digital sequence, if correctly do not receive, breaking down in repeater chip prompting communication network element inner passage, then described opposite end, and detects Serial No. by described channel detecting module to the channel detecting module sendaisle of described local terminal repeater chip.
2. the method for detection internal channel fault of communication network element as claimed in claim 1, it is characterized in that, break down and specifically comprise in repeater chip prompting communication network element inner passage, described opposite end: described opposite end repeater chip produces receiving alarm information, detects internal channel fault of communication network element to described local terminal repeater chip indication.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200710123362XA CN101072136B (en) | 2007-06-25 | 2007-06-25 | Method, device and system for detecting internal channel fault of communication network element |
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| CN200710123362XA CN101072136B (en) | 2007-06-25 | 2007-06-25 | Method, device and system for detecting internal channel fault of communication network element |
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| CN101072136A CN101072136A (en) | 2007-11-14 |
| CN101072136B true CN101072136B (en) | 2011-05-04 |
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| CN200710123362XA Expired - Fee Related CN101072136B (en) | 2007-06-25 | 2007-06-25 | Method, device and system for detecting internal channel fault of communication network element |
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Families Citing this family (3)
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| JP6359914B2 (en) * | 2014-08-13 | 2018-07-18 | ＡＰＲＥＳＩＡ Ｓｙｓｔｅｍｓ株式会社 | Relay system and relay device |
| CN109936518B (en) * | 2017-12-18 | 2022-02-11 | 迈普通信技术股份有限公司 | Detection method for channel fault of switching chip and distributed rack switch |
| CN109859448A (en) * | 2019-01-28 | 2019-06-07 | 武汉恒泰通技术有限公司 | A kind of communication link failure processing system and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1310531A (en) * | 2000-02-23 | 2001-08-29 | 华为技术有限公司 | Error detection method for high speed data transmission |
| US6321361B1 (en) * | 1997-06-26 | 2001-11-20 | Bull S.A. | Process for detecting errors in a serial link of an integrated circuit and device for implementing the process |
| US7216269B2 (en) * | 2002-01-09 | 2007-05-08 | Renesas Technology Corporation | Signal transmit-receive device, circuit, and loopback test method |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6321361B1 (en) * | 1997-06-26 | 2001-11-20 | Bull S.A. | Process for detecting errors in a serial link of an integrated circuit and device for implementing the process |
| CN1310531A (en) * | 2000-02-23 | 2001-08-29 | 华为技术有限公司 | Error detection method for high speed data transmission |
| US7216269B2 (en) * | 2002-01-09 | 2007-05-08 | Renesas Technology Corporation | Signal transmit-receive device, circuit, and loopback test method |
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