CN101605076B - Testing access point and data link monitoring method - Google Patents
Testing access point and data link monitoring method Download PDFInfo
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- CN101605076B CN101605076B CN2009101584625A CN200910158462A CN101605076B CN 101605076 B CN101605076 B CN 101605076B CN 2009101584625 A CN2009101584625 A CN 2009101584625A CN 200910158462 A CN200910158462 A CN 200910158462A CN 101605076 B CN101605076 B CN 101605076B
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Abstract
The invention provides a testing access point and a data link monitoring method. The testing access point comprises at least two network ports, at least two monitoring ports, a configuration unit and a copy unit, wherein the network ports are used to receive bidirectional data on a tested data link respectively; the configuration unit is used to configure a current working pattern; and the copy unit is connected with the network ports, the monitoring ports and the configuration unit, and is used to copy the bidirectional data to different monitoring ports when the current working pattern is a single-port working pattern and to copy the bidirectional data to the same monitoring port when the current working pattern is a convergent working pattern. By adopting the testing access point, the working pattern of TAP can be switched between a single-port working pattern and a convergent working pattern according to requirements.
Description
Technical field
The present invention relates to network service monitoring field, relate in particular to a kind of test access point and data link monitoring method.
Background technology
The major function of TAP (Test Access Point, test access point) is to accomplish duplicating of data on the network data link, to carry out the monitoring of data link.Be illustrated in figure 1 as the application sketch map of single port TAP of the prior art; Single port TAP is connected with tested network node 2 with tested network node 1 respectively with port 2 through port 1; Single port TAP transmits the bi-directional data between tested network node 1 and the tested network node 2; And after said bi-directional data duplicated respectively from monitoring mouthful 1 and monitoring mouthful 2 outputs, wherein, the monitoring mouthful data that the tested network node 1 of 1 output sends to tested network node 2; Monitor mouthful data that the tested network node 2 of 2 outputs sends to tested network node 1, monitoring mouth 1 uses with the data confession data monitoring system of monitoring mouthful 2 outputs.It is many that above-mentioned single port TAP has monitoring mouthful demand, the shortcoming that integrated level is not high.
For saving the monitoring mouth; Can adopt and converge TAP and accomplish duplicating of data on the network data link; Be illustrated in figure 2 as the application sketch map of the TAP of converging of the prior art; Converge TAP and transmit the bi-directional data between tested network node 1 and the tested network node 2, and said bi-directional data is duplicated the back from same monitoring mouthful output, supply data monitoring system to use.Though the above-mentioned TAP of converging can save the monitoring mouth, yet when the data rate of monitored data link rose to certain flow, the data at monitoring mouthful place may be overflowed, thereby cause loss of data.
Summary of the invention
In view of this, the embodiment of the invention provides a kind of test access point and data link monitoring method, can as required the mode of operation of TAP be switched between single port mode of operation and convergent working pattern.
For addressing the above problem, the embodiment of the invention provides a kind of test access point, comprising:
At least two ports are used for receiving respectively the bi-directional data on the measured data link;
At least two monitoring mouths;
Dispensing unit is used to dispose the work at present pattern;
Copied cells; Be connected with said port, said monitoring mouth and said dispensing unit; Be used for when said work at present pattern is the single port mode of operation; Said bi-directional data is copied to the different monitoring mouth respectively, when said work at present pattern is convergent working pattern, said bi-directional data is copied to same monitoring mouth.
Said test access point also comprises:
Retransmission unit is connected with said port, is used to transmit said bi-directional data.
Said dispensing unit comprises:
Receiving element is used to receive the exterior arrangement order;
First dispensing unit is used for disposing said work at present pattern according to said exterior arrangement order.
Said dispensing unit comprises:
Judging unit, whether the data rate that is used to judge said measured data link is more than or equal to predetermined threshold value;
Second dispensing unit; When being used for data rate at said measured data link more than or equal to said predetermined threshold value; With said work at present pattern configurations is the single port mode of operation; During less than said predetermined threshold value, is convergent working pattern with said work at present pattern configurations at the data rate of said measured data link.
Said test access point also comprises:
Control unit is used at system running state just often, controls said port and is connected with said copied cells through said retransmission unit simultaneously, and when system running state was unusual, it was direct-connected to control said port.
Said test access point also comprises:
The relay switching matrix, said port connects through said relay switching matrix, is used under the control of said control unit, switching, to change the connection status of said port.
The embodiment of the invention also provides a kind of data link monitoring method, may further comprise the steps:
Configuration step: test access point configuration work at present pattern;
Receiving step: said test access point receives the bi-directional data on the measured data link respectively through port;
Copy step: when said test access point is the single port mode of operation in said work at present pattern; Said bi-directional data is copied to the different monitoring mouth respectively; When said work at present pattern is convergent working pattern, said bi-directional data is copied to same monitoring mouth.
Also comprise after the said receiving step:
Transmit step: said test access point is transmitted said bi-directional data.
Said configuration step is specially:
Said test access point receives the exterior arrangement order;
Said test access point is ordered according to said exterior arrangement, disposes said work at present pattern.
Said configuration step is specially:
Said test access point judges that whether the data rate of said measured data link is more than or equal to predetermined threshold value;
Said test access point during more than or equal to said predetermined threshold value, is a single port mode of operation with said work at present pattern configurations at the data rate of said measured data link;
Said test access point during less than said predetermined threshold value, is a convergent working pattern with said work at present pattern configurations at the data rate of said measured data link.
Embodiments of the invention have following beneficial effect:
Test access point can be as required; Realize the switching between convergent working pattern and the single port mode of operation; With the bi-directional data on the measured data link that receives, copy to the different monitoring mouth respectively or copy to same monitoring mouth, thereby realize the flexible deployment of data monitoring system; The engineering maintenance of reduced data monitoring system has improved the availability of data monitoring system.
Description of drawings
Fig. 1 is the application sketch map of single port TAP of the prior art;
Fig. 2 is the application sketch map that converges TAP of the prior art;
Fig. 3 is the structural representation of the test access point of the embodiment of the invention;
Another structural representation of the test access point of Fig. 4 embodiment of the invention;
The another structural representation of the test access point of Fig. 5 embodiment of the invention;
A structural representation again of the test access point of Fig. 6 embodiment of the invention;
Fig. 7 is a concrete application scenarios sketch map of the test access point of the embodiment of the invention;
Fig. 8 is the schematic flow sheet of the data link monitoring method of the embodiment of the invention;
Fig. 9 is another schematic flow sheet of the data link monitoring method of the embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment, specific embodiments of the invention describes in further detail.
Be illustrated in figure 3 as the structural representation of the test access point of the embodiment of the invention, said test access point comprises:
At least two monitoring mouths 301; Said monitoring mouthfuls 301 is connected with data monitoring system, and the data on the measured data link that is used for said test access point is duplicated output to said data monitoring system;
At least two ports 303 are used for receiving respectively the bi-directional data on the measured data link; Said two ports 303 are connected with the second tested network node with the first tested network node of said measured data both link ends respectively; Wherein, One port receives first data that the said first tested network node sends to the said second tested network node; Another port receives second data that the said second tested network node sends to the said first tested network node, and said first data and second data are the bi-directional data on the said measured data link;
Copied cells 304; Be used for being connected with said port 303, said monitoring mouthfuls 301 and said dispensing unit 302; Be used for when said work at present pattern is the single port mode of operation; Said bi-directional data is copied to different monitoring mouth 301 respectively, when said work at present pattern is convergent working pattern, said bi-directional data is copied to same monitoring mouth 301.Said bi-directional data is copied to different monitoring mouth 301 respectively, after said first data that are about to receive and second data are duplicated, send to different monitoring mouth 301; Said bi-directional data is copied to different monitoring mouth 301 respectively, after said first data that are about to receive and said second data are duplicated, send to same monitoring mouth 301.
The test access point that provides through the foregoing description; Can realize the switching between convergent working pattern and the single port mode of operation, with the bi-directional data on the measured data link that receives as required; Copy to the different monitoring mouth respectively or copy to same monitoring mouth; Thereby realize the flexible deployment of data monitoring system, the engineering maintenance of reduced data monitoring system has improved the availability of data monitoring system.
In addition; For can be so that the first tested network node of measured data both link ends and the second tested network node can proper communications; Be illustrated in figure 4 as another structural representation of the test access point of the embodiment of the invention; On the basis of embodiment shown in Figure 3, said test access point also comprises:
In the foregoing description, said test access point can also provide a network management interface, be connected with the extranets guard system, and according to the order that network management system is sent, configuration work at present pattern, as shown in Figure 4, said dispensing unit 302 comprises:
Receiving element 3021 is used to receive the exterior arrangement order;
First dispensing unit 3022 is used for disposing said work at present pattern according to said exterior arrangement order.
In addition; Said test access point also can self detect the data rate of measured data link; During more than or equal to predetermined threshold value, can be the single port mode of operation at the data rate that detects the measured data link with the work at present pattern configurations, prevents that monitoring mouthful data from overflowing; During less than predetermined threshold value, can be convergent working pattern at the data rate that detects the measured data link with the work at present pattern configurations, reduces the demand of monitoring mouthful.
Be illustrated in figure 5 as the another structural representation of the test access point of the embodiment of the invention, on the basis of embodiment shown in Figure 4, said dispensing unit 302 comprises:
Judging unit 3023, whether the data rate that is used to judge said measured data link is more than or equal to predetermined threshold value;
Second dispensing unit 3024; When being used for data rate at said measured data link more than or equal to said predetermined threshold value; With said work at present pattern configurations is the single port mode of operation; During less than said predetermined threshold value, is convergent working pattern with said work at present pattern configurations at the data rate of said measured data link.
Test access point in the course of the work; Might power down or generation systems internal fault; When power down or generation systems internal fault, then need the operation of halt system, and need the transmission of the data between assurance and the link-attached port 303 of measured data unaffected.
Be illustrated in figure 6 as a structural representation again of the test access point of the embodiment of the invention, on the basis of embodiment shown in Figure 4, said test access point also comprises:
In addition, said test access point can also comprise a relay switching matrix 307, and said port 303 connects through said relay switching matrix 307, is used under the control of said control unit 306, switching, to change the connection status of said port 303.
Said control unit 306 can be according to the order of extranets guard system transmission; Carry out above-mentioned control operation; Certainly, said test access point also can self be monitored the running status of system, carries out above-mentioned control operation according to monitoring result; As shown in Figure 6, said test access point can also comprise:
In addition, each internal element of above-mentioned test access point all need power on when work, and therefore, said test access point also comprises: power supply unit is used to provide the system works power supply.Said power supply unit can provide the power supply of different voltages for each internal element of said test access point.
For example above-mentioned test access point is described below.
Be illustrated in figure 7 as a concrete application scenarios sketch map of the test access point of the embodiment of the invention, said test access point comprises: power supply unit, interface unit, central control unit, physical chip interface unit, exchange layer chip processing unit and logic control element.
Power supply unit provides each unit of internal system required various voltage sources, for example voltage sources such as 3.3V, 2.5V, 1.8V, 1.2V or 1.0V can be provided.
Interface unit comprises plurality of ports, and those port parts are configured to port, is used for being connected with the tested network node of measured data both link ends, and a part is configured to the monitoring mouth, is used for being connected with data monitoring system; Said interface unit also comprises the relay switching matrix, and said relay switching matrix is similar to a single-pole double-throw switch (SPDT), is connected through this relay switching matrix with 8 heart yearns of the link-attached port of measured data.When system running state was unusual, like power down or generation systems internal fault, interface unit was according to the control level of logic control element output; The control relay switching matrix switches; The port that connects the measured data link is switched to direct-connected state, and promptly data are without any processing of the internal element of said test access point, directly transparent transmission; Thereby when guaranteeing that the test access point power down is perhaps broken down, the transmission to the data on the measured data link does not impact.When system running state just often; Interface unit control relay switching matrix switches; The data that port is received switch to physical chip interface unit and exchange layer chip processing unit, thereby realize test access point duplicating the data on the measured data link.In addition, also have the network interface protective circuit in the interface unit of the embodiment of the invention, have the protective effect of antistatic and anti-thunderbolt.
Central control unit is through PCI (Pedpherd Component Interconnect; Peripheral element extension interface) bus is connected with exchange layer chip processing unit; Configuration register and status register through pci bus read-write exchange layer chip processing unit; Completion is configured to single port mode of operation or convergent working pattern to the configuration of the mode of operation of exchange layer chip processing unit with the mode of operation that exchanges layer chip processing unit, promptly carries out the function of the dispensing unit 302 in the foregoing description; Said central control unit can also provide network management interface; Be used to receive the order that network management system is sent; Accomplish a configuration according to said order, promptly carry out receiving element 3021 and the function of first dispensing unit 3022 in the foregoing description the mode of operation of exchange layer chip processing unit; Central control unit also provides the control interface to logic control element, thus the connection status of the port in the control interface unit; In addition, said central control unit can also be monitored the running status of system, the operating state of other each unit in the polling system, and when system running state was unusual, alarm report was given network management system.
The physical chip interface unit is handled receiving data; Accomplish the recovery of data link clock, the processing capacities such as conversion of analog and digital signal; Interface between physical chip interface unit and the exchange layer chip processing unit is SGMII (Serial Gigabit Media Independent Interface, a serial gigabit GMII) interface.
Exchange layer chip processing unit is forced to transmit to the data that receive; And execution mirror image operation (being the operation that above-mentioned copied cells 304 is carried out); When the work at present pattern of test access point is the single port mode of operation; The bi-directional data of port is mirrored to the different monitoring mouth respectively, when the work at present pattern of test access point is convergent working pattern, the bi-directional data of port is mirrored to same monitoring mouthful.
Logic control element is provided with register and latch; Be used to receive the control command of central control unit; Judgement needs the operation of execution, output control corresponding level, and the relay switching matrix of control interface unit switches; Thereby the connection status of Control Network mouth is promptly carried out the function of the control unit 306 in the foregoing description.Logic control element is through reading the system status monitoring register of central control unit; Whether the running status to judge system is normal; In case find that system running state is unusual, for preventing the frequent switching of relay switching matrix, the bypass operating state of logic control element lock-up relay switching matrix; Make with the link-attached port of measured data direct-connectedly, no longer switch.
In the foregoing description, the QUICC processor that can adopt MOTOLORA company is as above-mentioned central control unit, and this preparation implement has that performance is good, integrated level is high and the cost performance advantages of higher; The chip that can adopt BROADCOM company is as above-mentioned exchange layer chip processing unit, and this chip can provide MAC (Media Access Control, the media interviews control) layer data of maximum 24 ports to handle; Can use 3 BROADCOM chips that 4 tunnel physical layer process functions are provided as above-mentioned physical chip interface unit, accomplish the processing of 12 physical ports altogether.The interface unit of supposing the embodiment of the invention has 12 ports; When the mode of operation of test access point was configured to convergent working pattern, generally, the 1-8 port of interface unit was set to port; The 9-12 port is set to the monitoring mouth; When the mode of operation of test access point was configured to the single port mode of operation, the 1-6 port was set to port, and the 7-12 port is set to the monitoring mouth.
Be illustrated in figure 8 as the schematic flow sheet of the data link monitoring method of the embodiment of the invention, said data link monitoring method may further comprise the steps:
Step 801 is a configuration step, test access point configuration work at present pattern;
Step 802 is a receiving step, and said test access point receives the bi-directional data on the measured data link respectively through port;
Step 803 is a copy step: when said test access point is the single port mode of operation in said work at present pattern; Said bi-directional data is copied to the different monitoring mouth respectively; When said work at present pattern is convergent working pattern, said bi-directional data is copied to same monitoring mouth.
In addition, for can be so that the first tested network node of measured data both link ends and the second tested network node can proper communications, also comprise after the above-mentioned steps 802: transmit step: said test access point be transmitted said bi-directional data.
In the foregoing description; Said test access point can also provide a network management interface, is connected with the extranets guard system, according to the order of network management system transmission; Configuration work at present pattern, this moment, said configuration step can be specially: said test access point receives the exterior arrangement order; Said test access point is ordered according to said exterior arrangement, disposes said work at present pattern.
In addition; Said test access point also can self detect the data rate of measured data link; During more than or equal to predetermined threshold value, can be the single port mode of operation at the data rate that detects the measured data link with the work at present pattern configurations, prevents that monitoring mouthful data from overflowing; During less than predetermined threshold value, can be convergent working pattern at the data rate that detects the measured data link with the work at present pattern configurations, reduces the demand of monitoring mouthful.At this moment, said configuration step can be specially: said test access point judges that whether the data rate of said measured data link is more than or equal to predetermined threshold value; Said test access point during more than or equal to said predetermined threshold value, is a single port mode of operation with said work at present pattern configurations at the data rate of said measured data link; Said test access point during less than said predetermined threshold value, is a convergent working pattern with said work at present pattern configurations at the data rate of said measured data link.
Test access point in the course of the work; Might power down or generation systems internal fault; When power down or generation systems internal fault, then need the operation of halt system, and need the transmission of the data between assurance and the link-attached port of measured data unaffected.
Be illustrated in figure 9 as another schematic flow sheet of the data link monitoring method of the embodiment of the invention, said data link monitoring method may further comprise the steps:
The data link monitoring method that provides through the foregoing description; Can realize that the mode of operation of test access point is switched between convergent working pattern and single port mode of operation, with the bi-directional data on the measured data link that receives as required; Copy to the different monitoring mouth respectively or copy to same monitoring mouth; Thereby realize the flexible deployment of data monitoring system, the engineering maintenance of reduced data monitoring system has improved the availability of data monitoring system.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (6)
1. a test access point is characterized in that, comprising:
At least two ports are used for receiving respectively the bi-directional data on the measured data link;
At least two monitoring mouths;
Dispensing unit is used to dispose the work at present pattern;
Copied cells; Be connected with said port, said monitoring mouth and said dispensing unit; Be used for when said work at present pattern is the single port mode of operation; Said bi-directional data is copied to the different monitoring mouth respectively, when said work at present pattern is convergent working pattern, said bi-directional data is copied to same monitoring mouth;
Wherein, said dispensing unit comprises:
Judging unit, whether the data rate that is used to judge said measured data link is more than or equal to predetermined threshold value;
Second dispensing unit; When being used for data rate at said measured data link more than or equal to said predetermined threshold value; With said work at present pattern configurations is the single port mode of operation; During less than said predetermined threshold value, is convergent working pattern with said work at present pattern configurations at the data rate of said measured data link.
2. test access point according to claim 1 is characterized in that, also comprises:
Retransmission unit is connected with said port, is used to transmit said bi-directional data.
3. test access point according to claim 1 is characterized in that, also comprises:
Control unit is used at system running state just often, controls said port and is connected with said copied cells through said retransmission unit simultaneously, and when system running state was unusual, it was direct-connected to control said port.
4. test access point according to claim 3 is characterized in that, also comprises:
The relay switching matrix, said port connects through said relay switching matrix, is used under the control of said control unit, switching, to change the connection status of said port.
5. a data link monitoring method is characterized in that, may further comprise the steps:
Configuration step: test access point configuration work at present pattern;
Receiving step: said test access point receives the bi-directional data on the measured data link respectively through port;
Copy step: when said test access point is the single port mode of operation in said work at present pattern; Said bi-directional data is copied to the different monitoring mouth respectively; When said work at present pattern is convergent working pattern, said bi-directional data is copied to same monitoring mouth;
Wherein, said configuration step is specially:
Said test access point judges that whether the data rate of said measured data link is more than or equal to predetermined threshold value;
Said test access point during more than or equal to said predetermined threshold value, is a single port mode of operation with said work at present pattern configurations at the data rate of said measured data link;
Said test access point during less than said predetermined threshold value, is a convergent working pattern with said work at present pattern configurations at the data rate of said measured data link.
6. data link monitoring method according to claim 5 is characterized in that, also comprises after the said receiving step:
Transmit step: said test access point is transmitted said bi-directional data.
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| CN2009101584625A CN101605076B (en) | 2009-06-30 | 2009-06-30 | Testing access point and data link monitoring method |
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| CN2009101584625A CN101605076B (en) | 2009-06-30 | 2009-06-30 | Testing access point and data link monitoring method |
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| CN101605076A CN101605076A (en) | 2009-12-16 |
| CN101605076B true CN101605076B (en) | 2012-02-08 |
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Families Citing this family (4)
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| CN102082706B (en) * | 2010-12-23 | 2014-06-11 | 中兴通讯股份有限公司 | Method for monitoring test access points and data links |
| CN102801573A (en) * | 2011-05-26 | 2012-11-28 | 上海固泰科技有限公司 | Method for testing local interconnect network (LIN) bus data link layer |
| CN103259830A (en) * | 2012-05-10 | 2013-08-21 | 南京英飞诺网络科技有限公司 | Low-latency convergence TAP |
| CN107612613A (en) * | 2017-11-08 | 2018-01-19 | 郑州云海信息技术有限公司 | A kind of communication link fails transfer method, system and photoelectricity link switch equipment |
Citations (1)
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| CN1838621A (en) * | 2005-03-24 | 2006-09-27 | 安捷伦科技有限公司 | Apparatus for monitoring a network |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1838621A (en) * | 2005-03-24 | 2006-09-27 | 安捷伦科技有限公司 | Apparatus for monitoring a network |
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| Title |
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| 刘军杰等.千兆以太网TAP卡的设计与实现.《电视技术》.2008,第48卷(第7期),74-76. * |
| 黄丽艳等.TAP及其应用.《光通信研究》.2006,(第138期),67-70. * |
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