CN1968263A - Data communication network protocol analysis testing method and device - Google Patents
Data communication network protocol analysis testing method and device Download PDFInfo
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- CN1968263A CN1968263A CN 200610062903 CN200610062903A CN1968263A CN 1968263 A CN1968263 A CN 1968263A CN 200610062903 CN200610062903 CN 200610062903 CN 200610062903 A CN200610062903 A CN 200610062903A CN 1968263 A CN1968263 A CN 1968263A
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Abstract
The invention relates to a data communication protocol analyzing testing method and relative tester, wherein said method comprises that: the programmable device writes data communication protocol into memory, via the memory space state or the preset work time state of programmable device, to send the read signal to CPU controller; CPU reads and analyzes the data communication protocol information stored in memory. And the device comprises that: photo/electric converter, synchronous digit frame processor, programmable device, CPU controller and memory; the programmable device via the memory state or the preset work time state of it, sends read signal to CPU controller; CPU controller reads and analyzes the protocol stored on memory. The invention can improve information picked amount.
Description
[technical field]
The present invention relates to the optical-fiber network technical field, relate in particular to a kind of data communication network protocol analysis method of testing and testing equipment.
[background technology]
Along with the fast development of ASON and optical-fiber network MSTP (Multi-Service Transport Platform multi-service transport platform) equipment, the reliable transmission of information such as the network management information of equipment and intelligent characteristic information is particularly important.At present a lot of all DCC (Data Communication Channels data communication channel) of the SDH (Synchronous Digital Hierarchy SDH (Synchronous Digital Hierarchy)) by optical network device of these information carry (D1 ~ D3: generally carry network management information, 192kbit/s; D4 ~ D12: the occasion of the higher management Capability Requirement of general carrying, as: intelligent characteristic information, wear third party NMS information etc. thoroughly, 576kbit/s).This kind mode need not to increase extra DCN (DataCommunication Network data communication network) passage, cost is low, uses conveniently, is subjected to service impact less.
When information is carried by DCC, except requiring DCC physical layer reliable operation, equipment has also been taked relevant various protocols guarantee information reliable delivery in link layer and network layer, as: HDLC (High-level Data Link Control High level data link control)/PPP (Point-to-Point protocol peer-peer protocol) OVER DCC, IP (Internet Protocol Internet protocol) OVER DCC, OSI (interconnection of Open System Interconnection development system) OVER DCC etc.In addition, along with increasing of network management information, intelligent characteristic information and control information, the DCC bandwidth chahnel of standard SDH may be not enough, needs expansion DCC passage, adopts promptly that undefined byte lane transmits the phase related control information among the SOH (SDHSection Overhead section overhead) of standard SDH.
Fig. 1 is the structural representation of STM-N SDH frame, and section overhead accounts for 9 * 9 * N row (byte), and wherein, section overhead comprises RSOH, Administrative Unit Pointer and MSOH; Higher Order Path Overhead and STM-N payload account for 9 * 261 * N row (byte) together.Fig. 2 is the structural representation of STM-1 section overhead, each little lattice is represented a byte, and all do not mark byte and are left international standard use in the future, and " * " expression is left the byte of domestic use, " * " represents unscrambled bytes, " △ " expression byte relevant with transmission medium.Above-mentioned expansion DCC passage adopts undefined byte in the section overhead (comprise and do not mark byte, " * " byte, " * " byte, " △ " byte etc.) passage to transmit the phase related control information exactly.
Fig. 3 is the SDH protocal analysis testing equipment of prior art and the connection diagram of optical network device, all passing through data communication channel (DCC) between each optical network device (a certain side's network equipment, third party's network equipment) in the transmission net intercoms mutually, SDH protocal analysis equipment is connected by optical fiber with a certain side's network equipment, and current SDH protocal analysis testing equipment comprises light/electricity and electricity/light modular converter, SDH Frame Handler, programming device and CPU control unit.When SDH protocal analysis testing equipment is handled the DCC passage of SDH or expansion DCC passage loaded information, light/electricity and electricity/light modular converter is converted to the signal of telecommunication to the light signal that transmits in the net, the SDH Frame Handler is handled the SDH frame, the SOH/POH that extracts (Path Overhead path overhead) information is placed in the register of programming device (or in one group of register of special-purpose ASIC appointment), reads by the CPU control unit afterwards and SOH/POH information is carried out protocal analysis.
The commercial SDH protocal analysis of part testing equipment can be caught SDH SOH channel information at present, comprise DCC passage (D1 ~ D3, D4 ~ D12) etc., some testing equipment can only be that the information of single 64kbit/s passage is caught, catch when also some testing equipment can be to the information of same of a plurality of 64kbit/s passages, but no matter adopt which kind of catching mode, the amount of information that captures all has only tens or a hundreds of byte, amount of information is all very little, can only analyze some simple agreements, as: K1, K2 byte N filtering frames function (as N=3), S1 byte N filtering frames function (as N=8), the SOH physical layer transmits simple and reliable property testing etc., can't carry out protocal analysis (such as HDLC/PPP OVER DCC to complicated DCC passage loaded information, IP OVER DCC etc.).When at the interface of different network elements, especially butt joint occurs when unusual at the interface of striding third party's network element, the agreement of both sides carrying analyzed so that deal with problems as early as possible just seem particularly important, and above-mentioned SDH SOH data capture mode (is many times also lacked than a basic data packet length) very little and can't in time agreement be analyzed because of data volume, is unfavorable for solving the unusual problem of butt joint of appearance.
[summary of the invention]
The technical problem to be solved in the present invention provides a kind of data communication network protocol analysis method of testing and testing equipment, can increase the quantity of the catch of information, helps agreement is analyzed.
The present invention realizes by following technical scheme:
A kind of data communication network protocol analysis method of testing may further comprise the steps:
101, programming device is written to data communication network protocol information in the memory, and according to the memory space state of memory or according to preset work time state on the programming device, sends the signal that reads the memory stores content for the CPU control unit;
102, CPU reads the also data communication network protocol information of the described memory stores of analyzing and processing.
Described step 101 also comprises: described memory is divided at least two in logic and/or physically independent storage area.
Step 101 specifically comprises: programming device is written to data communication network protocol information in the memory, when arbitrary storage area is filled with described data communication network protocol information, with the data communication network protocol information stores to other storage area that remaining space is arranged, simultaneously, programming device sends the signal that reads the memory stores content for the CPU control unit.
Read specifically described in the step 102 and comprise: the CPU control unit reads the data communication network protocol information of storing in the full storage area of memory space.
Step 101 specifically comprises: in the preset work time section, programming device is written to data communication network protocol information in the memory, when the operating time finishes, sends the signal that reads the memory stores content for the CPU control unit.
Also comprise before the step 101: the light signal that light/electric modular converter is sent optical network device here is converted to the signal of telecommunication, the SDH (Synchronous Digital Hierarchy) Frame Handler is handled the described signal of telecommunication, and extracts described data communication network protocol information and give described programming device.
Step 102 specifically comprises: described CPU control unit judges whether described data communication network protocol information exceeds its disposal ability limit;
If exceed, then will exceed partial data communication network protocol information or the total data communication network protocol information that it reads is delivered to protocol-analysis model carry out analyzing and processing;
Otherwise the CPU control unit carries out analyzing and processing to the total data communication network protocol information that it reads.
A kind of data communication network protocol analysis testing equipment, comprise: be used for the light signal that optical network device is sent here be converted to the signal of telecommunication light/electric modular converter, be used for the described signal of telecommunication is handled, and extract data communication network protocol information outwards SDH (Synchronous Digital Hierarchy) Frame Handler, programming device and the CPU control unit of output;
Also comprise memory, described programming device receives the data communication network protocol information of described SDH (Synchronous Digital Hierarchy) Frame Handler output, and this information stores in memory, according to the memory space state of memory or according to preset work time state on the programming device, send the signal that reads the memory stores content for the CPU control unit, the CPU control unit reads the also data communication network protocol information of the described memory stores of analyzing and processing.
Described a kind of data communication network protocol analysis testing equipment, also comprise protocol-analysis model, when described data communication network protocol information exceeds CPU control unit disposal ability limit, the CPU control unit will exceed partial data communication network protocol information or the total data communication network protocol information that it reads be delivered to protocol-analysis model carry out analyzing and processing.
Described memory built-in is in described programming device or external separately.
Because adopted above technical scheme, programming device all is written to the data communication network protocol information that captures in the memory, has increased the quantity of the catch of data communication network protocol information; The present invention is divided at least two separate storage areas to memory, the information of catching all writes in these storage areas, when a certain storage area is filled with, programming device sends the signal that makes the CPU control unit read this storage area internal information for the CPU control unit, treat the CPU control unit read finish after this storage area new memory space is arranged again, so repeatedly, improved the quantity of the catch of data communication network protocol information greatly; When the CPU control unit does not have ability to handle complicated data communication network protocol information, handle by special protocol-analysis model, be convenient to locate fast and solve the abnormal problem that occurs in the network; The present invention can also be provided with the acquisition mode of programming device, as: can in continuous time or in a certain period, catch, improve the flexibility of information capture, be beneficial to specific aim and deal with problems data communication network protocol information; The present invention can also be at the heterogeneous networks equipment interface, or strides third party's network device interface place, and the network management information or the intelligent characteristic information completely of DCC passage or the carrying of expansion DCC passage are caught the protocal analysis of the line correlation of going forward side by side.
[description of drawings]
Fig. 1 is the structural representation of STM-N SDH frame.
Fig. 2 is the structural representation of STM-1 section overhead.
Fig. 3 is the SDH protocal analysis testing equipment of prior art and the connection diagram of optical network device.
Fig. 4 is the connection diagram of SDH protocal analysis testing equipment of the present invention and optical network device.
[embodiment]
Below in conjunction with drawings and Examples the present invention is further set forth:
The connection diagram of Fig. 4 SDH protocal analysis of the present invention testing equipment and optical network device, in a certain side's network equipment in the testing equipment access optical-fiber network of the present invention, can certainly be linked in third party's network equipment, not shown, according to use occasion testing equipment is arranged in line states or complete pass-through state; Wherein, presence, promptly testing equipment and optical network device dock mutually, carry out business transmitting-receiving test mutually; Complete pass-through state, promptly testing equipment is just monitored, and optical network device is given complete constant the sending back to again in the optical network device of information meeting of testing equipment, does not influence the normal operation of optical network device.
Testing equipment of the present invention, mainly comprise: light/electricity and electricity/light modular converter, the auspicious processor of SDH, programming device, memory and CPU control unit, the light signal that light/electricity and electricity/the light modular converter is sent optical network device here is converted to the signal of telecommunication, the SDH (Synchronous Digital Hierarchy) Frame Handler is handled the described signal of telecommunication, and extract data communication network protocol information (section overhead in the SDH (Synchronous Digital Hierarchy) and/or path overhead information) and give described programming device, described programming device is written to described data communication network protocol information in the memory, and according to the memory space state of memory, send the signal that reads the memory stores content for the CPU control unit, the CPU control unit reads and the data communication network protocol information of the described memory stores of analyzing and processing after receiving the described signal that reads the memory stores content.
For complicated protocol information is handled, testing equipment of the present invention also comprises: protocol-analysis model, the some or all of protocol-analysis model of delivering to of the described data communication network protocol information that described CPU control unit will read carries out analyzing and processing.This protocol-analysis model can be the terminal or the server of far-end, can adopt 10/100M Ethernet between itself and the CPU control unit, and modes such as RS232 are carried out communication.
It is to be noted, memory of the present invention can be built in the programming device or be external separately, it can be divided at least two in logic and/or physically independent storage area, when certain storage area is filled with described data communication network protocol information, with the data communication network protocol information stores to other storage areas that remaining space is arranged, simultaneously, programming device sends the signal that reads the memory stores content for the CPU control unit, the CPU control unit reads this storage area that has been filled with data communication network protocol information, afterwards, this storage area has new memory space to continue the data communication network protocol information that storage is newly caught again, so circulate, just improved the data communication network protocol information capture amount of testing equipment.
Utilize above-mentioned SDH protocal analysis testing equipment below, method of testing of the present invention be described specifically (wherein, memory divides two storage areas into, is designated as memory 1 and memory 2):
It is fixed that the size of memory can be come according to actual conditions and CPU disposal ability, and (the DCC maximum bandwidth is 64kbit/s*12=768kbit/s to general 256Kbytes, adds expansion DCC passage, and maximum bandwidth is generally in 2Mbit/s with regard to enough; The 128Kbytes buffer memory can be stored the above data of 500ms at least).
At first, after the SDH light signal that optical network device the is sent light of equipment/electricity conversion after tested, SDH frame are handled, from the SDH Frame Handler, extract SDH SOH/POH information and send programming device to handle.
Secondly, in programming device, will carry out following processing:
Finishing the conversion that SDH SOH/POH extracts interface and memory write interface (promptly extracts SDH SOH/POH information, for preparing in the protocol information write memory in the SDH Frame Handler.), and memory is divided into two equirotal storage entity, be designated as memory 1 and memory 2.Certainly the size of memory 1 and memory 2 also can be different, can realize goal of the invention equally.
According to user's user demand, promptly on programming device, start the triggering mode that presets, the trigger condition that DCC or expansion DCC channel data write toward memory is set, as long as trigger condition satisfies, the DCC of reception or expansion DCC channel data just write toward memory 1 continuously.
When memory 1 is write when full, if also have DCC or expansion DCC channel data need continue to catch storage, then DCC that receives or expansion DCC channel data are continued to write toward memory 2, send a signal that reads the memory stores content simultaneously and give CPU element, CPU element reads the data of memory 1 at once, and carries out protocal analysis; If SDH SOH/POH information is comparatively complicated, then these message parts or all deliver to protocol-analysis model and carry out subsequent treatment, as: send terminal or server so that more bulky information storage and subsequent analysis by the telecommunication port.
If memory 2 is also write full, also have this moment DCC or expansion DCC channel data need continue to catch storage, then DCC that continues to receive or expansion DCC channel data are begun again to write toward memory 1, send simultaneously a signal that reads the memory stores content once more and give CPU element, CPU element reads the data of memory 2 at once, and carries out protocal analysis; If SDH SOH/POH information is comparatively complicated, then these message parts or all deliver to protocol-analysis model and carry out subsequent treatment, as: send terminal or server so that more bulky information storage and subsequent analysis by the telecommunication port.
Above-mentioned process can be reduced to: signal → programming device memory write 1 that signal → programming device memory write 2 that programming device memory write 1 → memory 1 is full, the memory stores content is read in output, CPU memory read 1 → memory are 2 full, the memory stores content is read in output, CPU memory read 2 → ... .., so circulation just can be extracted the complete information of DCC passage or the carrying of expansion DCC passage fully.
At last, protocol-analysis model (terminal or server) resolves to complete one by one packet to the complete information of DCC passage that captures or expansion DCC passage, the protocal analysis of being correlated with then according to related protocol.
The present invention is divided into two above storage areas to memory can reach goal of the invention too, its detailed process and said process are similar, when certain storage area is filled with described data communication network protocol information, with the data communication network protocol information stores to other storage areas that remaining space is arranged, simultaneously, programming device sends the signal that reads the memory stores content for the CPU control unit, reads the data communication network protocol information in this storage area that has been filled with.
Equally, the present invention also can realize the analysis of simple physics layer protocol, i.e. N filtering frames etc.
In addition, some occasion may there is no need DCC passage in the network equipment running or expansion DCC passage loaded information are monitored (promptly catch and analyze) for a long time, and the information that only need monitor specific a period of time gets final product, triggering mode to programming device is made amendment, and changes into: the data communication network protocol information in memory writes default section sometime; DCC passage or expansion DCC passage loaded information only need be caught and be positioned in the memory and be got final product this moment, were gone to read by CPU element again after information capture is finished to be used for subsequent analysis; And there is no need memory is divided into two, write, read two block messages alternately by programming device and CPU control unit respectively so as to carry out the more storage of large information capacity (that is: full, the output of programming device memory write 1 → memory 1 read that memory stores content → programming device memory write 2, CPU memory read 1 → memory are 2 full, the memory stores content is read in output → programming device memory write 1, CPU memory read 2 → ... .. circulates repeatedly).
In sum, the present invention can increase the quantity of the catch of information, helps agreement is analyzed, thereby in time solves the abnormal problem that occurs in the network; With the 64kbit/s passage is unit, and the present invention can finish among the SDH SOH/POH catching fully of any one or N combination of channels (N＜=32) loaded information, and amount of information can infinitely great (only being subject to current industry Computer Storage level); The definite position of SDH SOH/POH number of channels and each passage is selected by the user fully, and the user can only pay close attention to its information content that needs, and filters its useless information; The seizure Starting mode of each passage beared information can promptly start the triggering mode of catching and freely be selected by the user according to the user's request setting; Make the user can further focus on the information content of its concern; According to the SDH SOH/POH passage loaded information of catching, finish the related protocol analysis (according to the concrete agreement customization of passage carrying) of link layer and network layer etc. by protocol-analysis model.
In addition, the present invention can also be used to carry the K1 of APS (APS), the information completely of K2 byte lane is caught, and is convenient to analysis to APS (APS) agreement etc.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within the claim scope of the present invention.
Claims (10)
1, a kind of data communication network protocol analysis method of testing is characterized in that, may further comprise the steps:
101, programming device is written to data communication network protocol information in the memory, and according to the memory space state of memory or according to preset work time state on the programming device, sends the signal that reads the memory stores content for the CPU control unit;
102, CPU reads the also data communication network protocol information of the described memory stores of analyzing and processing.
2, a kind of data communication network protocol analysis method of testing according to claim 1 is characterized in that described step 101 also comprises: described memory is divided at least two in logic and/or physically independent storage area.
3, a kind of data communication network protocol analysis method of testing according to claim 2, it is characterized in that, step 101 specifically comprises: programming device is written to data communication network protocol information in the memory, when arbitrary storage area is filled with described data communication network protocol information, with the data communication network protocol information stores to other storage area that remaining space is arranged, simultaneously, programming device sends the signal that reads the memory stores content for the CPU control unit.
4, a kind of data communication network protocol analysis method of testing according to claim 3 is characterized in that, reads specifically described in the step 102 to comprise: the CPU control unit reads the data communication network protocol information of storing in the full storage area of memory space.
5, a kind of data communication network protocol analysis method of testing according to claim 1, it is characterized in that, step 101 specifically comprises: in the preset work time section, programming device is written to data communication network protocol information in the memory, when the operating time finishes, send the signal that reads the memory stores content for the CPU control unit.
6, a kind of data communication network protocol analysis method of testing according to claim 1, it is characterized in that, also comprise before the step 101: the light signal that light/electric modular converter is sent optical network device here is converted to the signal of telecommunication, the SDH (Synchronous Digital Hierarchy) Frame Handler is handled the described signal of telecommunication, and extracts described data communication network protocol information and give described programming device.
7, a kind of data communication network protocol analysis method of testing according to claim 1 is characterized in that step 102 specifically comprises: described CPU control unit judges whether described data communication network protocol information exceeds its disposal ability limit;
If exceed, then will exceed partial data communication network protocol information or the total data communication network protocol information that it reads is delivered to protocol-analysis model carry out analyzing and processing;
Otherwise the CPU control unit carries out analyzing and processing to the total data communication network protocol information that it reads.
8, a kind of data communication network protocol analysis testing equipment, comprise: be used for the light signal that optical network device is sent here be converted to the signal of telecommunication light/electric modular converter, be used for the described signal of telecommunication is handled, and extract data communication network protocol information outwards SDH (Synchronous Digital Hierarchy) Frame Handler, programming device and the CPU control unit of output; It is characterized in that:
Also comprise memory, described programming device receives the data communication network protocol information of described SDH (Synchronous Digital Hierarchy) Frame Handler output, and this information stores in memory, according to the memory space state of memory or according to preset work time state on the programming device, send the signal that reads the memory stores content for the CPU control unit, the CPU control unit reads the also data communication network protocol information of the described memory stores of analyzing and processing.
9, a kind of data communication network protocol analysis testing equipment according to claim 8, it is characterized in that: also comprise protocol-analysis model, when described data communication network protocol information exceeds CPU control unit disposal ability limit, the CPU control unit will exceed partial data communication network protocol information or the total data communication network protocol information that it reads be delivered to protocol-analysis model carry out analyzing and processing.
10, a kind of data communication network protocol analysis testing equipment according to claim 8 is characterized in that: described memory built-in is in described programming device or external separately.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100629038A CN100563252C (en) | 2006-09-27 | 2006-09-27 | A kind of data communication network protocol analysis method of testing and testing equipment |
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| CNB2006100629038A CN100563252C (en) | 2006-09-27 | 2006-09-27 | A kind of data communication network protocol analysis method of testing and testing equipment |
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| CN1968263A true CN1968263A (en) | 2007-05-23 |
| CN100563252C CN100563252C (en) | 2009-11-25 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101605281B (en) * | 2009-06-10 | 2012-05-09 | 深圳市共进电子股份有限公司 | Method for communicating among a plurality of processors in passive optical network equipment |
| CN103746827A (en) * | 2013-12-16 | 2014-04-23 | 云南电力调度控制中心 | Method and system for automatic parameter identification in IEC101/104 protocol analysis |
-
2006
- 2006-09-27 CN CNB2006100629038A patent/CN100563252C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101605281B (en) * | 2009-06-10 | 2012-05-09 | 深圳市共进电子股份有限公司 | Method for communicating among a plurality of processors in passive optical network equipment |
| CN103746827A (en) * | 2013-12-16 | 2014-04-23 | 云南电力调度控制中心 | Method and system for automatic parameter identification in IEC101/104 protocol analysis |
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| Publication number | Publication date |
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| CN100563252C (en) | 2009-11-25 |
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