CN101247324A - Network relay unit with network on-line testing package - Google Patents
Network relay unit with network on-line testing package Download PDFInfo
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- CN101247324A CN101247324A CNA2007100841026A CN200710084102A CN101247324A CN 101247324 A CN101247324 A CN 101247324A CN A2007100841026 A CNA2007100841026 A CN A2007100841026A CN 200710084102 A CN200710084102 A CN 200710084102A CN 101247324 A CN101247324 A CN 101247324A
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Abstract
The invention relates to a network relay device which has a network online test packet, and a plurality of the network relay devices which have the network online test packets are connected with each other, the online test packets are continuously generated in a fixed time difference or in a unfixed time difference, and the network relay device is indicated in normal station from a local part to a remote part if the online test packets are received by a remote online test transceiver; and the network relay device from the local part to the remote part is indicated in abnormal station if the online test packets are not received or missed by the remote online test transceiver, then a problem of an entity circuit which can not correctly transmit data to another end of the network relay device in a station of carrying a online signal is resolved, furthermore, sense time for network offline of the network relay device is shorter than response time for sensing online station used by the entity circuit connection signal if a time difference for continuously generating the test packets is shorter.
Description
Technical field
The present invention relates to a kind of network trunk device of network on-line testing package, relate in particular to and a kind ofly be provided with the online testing R-T unit, so local side and long-range network trunk device can be detected the on line state of plurality of networks relay by the online testing package that this online testing R-T unit is produced at network trunk device with medium access control circuit and entity circuit.
Background technology
Quick evolution along with mechanics of communication, its communication network of deriving is also fast-developing thereupon, and can divide into LAN and Wide Area Network according to its scale, wherein, LAN then is the regional network of being finished by many identical network frameworks, the catenet that Wide Area Network then is made up of many LAN, and its service can spread all over the whole nation even the whole world with online scope.
No matter be LAN or Wide Area Network, wherein modal basic framework, be Ethernet (Ethernet), in Ethernet, then include and utilize optical fiber or twisted wire hub (Hub), interchanger (Switch) or router network trunk devices such as (Router) for transmission line, and the combination by network trunk device and transmission line, LAN and computer or other device of different network domains be can make, the transmission or the control of data, instruction carried out as surveillance, safety system and automation etc.
In all kinds of network trunk devices, in order to meet the defined standard of OSI (Open System Interconnection), therefore all be provided with entity circuit (Physical, be called for short PHY) and medium access control circuit (Media Access Control, be called for short MAC), wherein, specifications such as the connectivity port in the entity circuit layer general reference network trunk device, transmission line.
Because the entity circuit layer has been responsible for the transmission or the reception of entity signal, entity circuit at general communication network has the function that possesses detecting local side and remote connection state, and this on line state shown by display lamp number LED, conveniently to tell the on line state of user's network equipment, but because this on line state is directly to be responsible for detecting by the entity circuit, when the entity circuit detect two ends online just often, do not represent medium access control circuit (MAC) data packet of sending and receiving normally just of the network trunk device at two ends.
When carrying out online and transfer of data between the plurality of networks relay, its medium access control circuit (MAC) separately transfers data package and external the transmission to except carrying out, also can check the package that receives, so that learn the package that receives whether loss or damage etc. are arranged, therefore, medium access control circuit (MAC) can further be tested the transmission line between the network trunk device easily, after yet the network trunk device for the treatment of the transmission end transfers the online testing data to the package form with its medium access control circuit (MAC), this package is transferred on the transmission line by entity circuit (PHY) in regular turn, again by transmission line with package transmission to long-range network trunk device, receive package by its entity circuit (PHY) more at last and pass in the medium access control circuit (MAC), the medium access control circuit (MAC) that receive package this moment just can carry out the inspection of package, data in checking errorless and acquisition package are to confirm as the data that online testing is used, so can say just that the transmission from the transmission end of telecommunication network relay to the receiving terminal of local network relay is normal, otherwise, learn from the transmission end of local relay to also available this mode of the receiving terminal of telecommunication network relay two ends relay or among transmission line whether abnormal case is arranged, find that transmission line occurs just can showing that this network trunk device is unusual by the LED or the network management software when unusual when medium access control circuit (MAC) at last.
Though the above-mentioned network trunk device and the package load mode of transmission line are continued to use for many years, but still are that following defective is arranged:
One, all connected between the general plural network trunk device with transmission line, and carry out the transmission of package with medium access control circuit (MAC) separately, when therefore damage or fragmentation appear in the package that receives when long-range network trunk device, its medium access control circuit (MAC) except abandon damaging or broken package, also only be switched to the network trunk device of transmission end, can't inform the user or the network manager of network trunk device, must wait until that damage or broken appears in a large amount of packages, and the transmission that causes network occur serious unusual after, the medium access control circuit (MAC) just can notify user or network manager, therefore, can't in the very first time, overhaul network trunk device or transmission line; What for example work as the network connection is industrial production line (as: wafer factory, plastic molding and processing plant) or safety system (as: building supervisory control system) etc., after if above-mentioned anomaly appears in transmission line, because user or network manager can't learn at once that abnormality appears in transmission line, and make industrial production line or safety system etc. continue to keep running, by the time transmission line interrupt fully or anomaly very serious after, its user or network manager just can't control long-range industrial production line or safety system by local side, therefore cause the machinery on the industrial production line to produce paralysis even damage easily, or produce the leak of saving from damage.
Two, moreover, though the network trunk device of part is arranged can be tested on line state, but this test mode mainly still utilizes entity circuit (PHY) to send after the online detection signal, at last judge by long-range network trunk device whether transmission line takes place unusually again, but when the entity circuit detect two ends online just often, do not represent medium access control circuit (MAC) data packet of sending and receiving normally just of the network trunk device at two ends, therefore if the network trunk device only utilizes the entity circuit to judge near-end and long-range online whether normal, correctly whether judgment data is normally received by long-range relay, so that network management personnel or supervisory control system can't correctly be judged the on line state of near-end and long-range relay thereby cause careless mistake and infringement.
Therefore, how to solve above-mentioned prior art problems and defective, be the relevant manufacturer that is engaged in the industry and desire most ardently the direction place that research improves.
Summary of the invention
Main purpose of the present invention is to provide a kind of network trunk device of tool network on-line testing package, under the state of plurality of networks relay in transfer of data, can produce the online testing package by its inner online testing R-T unit that is provided with, the online testing R-T unit for the treatment of the network trunk device is received test packets in the scheduled time after, whether on line state and the data transfer state that can judge this plurality of networks relay be unusual, by this, supervisory control system or network management personnel can judge correctly whether the entity circuit only has online signal but data correctly can't be sent to the network trunk device of the other end.
Secondary objective of the present invention is to provide a kind of network trunk device of tool network on-line testing package, this device is by online testing R-T unit set in the network trunk device, if it is enough short that this online testing R-T unit produces the time difference of continuous online testing package, then the detecting time of its detecting network outage can come sooner than the reaction of detecting on line state by the connection signal (Link) that utilizes the entity circuit.
For reaching above-mentioned purpose and effect, an embodiment of the present invention is as follows:
A kind of network trunk device of tool network on-line testing package, this network trunk device connects by transmission line, and carries out the test of on line state by the online testing package, and wherein this network trunk device includes:
The online testing R-T unit, this online testing R-T unit can transmit or receive the online testing package, and can judge the transmission or the accepting state of online testing package;
The medium access control circuit, this medium access control circuit and online testing R-T unit are electric connection, and the online testing package that the online testing R-T unit can be produced is combined into and meets institute's specification data package form under the OSI framework; And
The entity circuit, this entity circuit and medium access control circuit are electric connection, and can receive the online testing package that combines with medium access control circuit institute by the online testing R-T unit, or will be sent to the network trunk device of the other end by the online testing package that the online testing R-T unit combines with medium access control circuit institute.
For reaching above-mentioned purpose and effect, another embodiment of the present invention is as follows:
A kind of network trunk device of tool network on-line testing package, this network trunk device connects by transmission line and carries out the test of on line state by the network signal package, and wherein this network trunk device includes:
The online testing R-T unit, this online testing R-T unit is for transmission or receive the online testing package, and can judge the transmission or the accepting state of online testing package; And
The entity circuit, this entity circuit and online testing R-T unit are electric connection, and can receive the online testing package that is produced by the online testing R-T unit, or will be sent to the network trunk device of the other end by the online testing package that the online testing R-T unit is produced.
Description of drawings
But Fig. 1 is the system block diagrams of the relay of tool programmed logic device of the present invention.
But Fig. 2 is the relay online testing flow chart of tool programmed logic device of the present invention.
But Fig. 3 is the relay system block diagrams of another tool programmed logic device of the present invention.
Fig. 4 is the system block diagrams of the relay of tool microprocessor of the present invention.
Symbol description among the figure
1, local side
11, network trunk device 113, medium access control circuit (MAC)
But 111 programmed logic devices 114, microprocessor
112, entity circuit (PHY) 115, display unit
2, long-range
21, network trunk device 213, medium access control circuit (MAC)
But 211 programmed logic devices 214, microprocessor
212, entity circuit (PHY) 215, display unit
3, transmission line
Embodiment
See also shown in Figure 1, but relay system block diagrams for tool programmed logic device of the present invention, find out that by knowing among the figure the present invention is made of network trunk device 11, but this network trunk device 11 includes programmed logic device 111 and entity circuit (PHY) 112, wherein:
But be somebody's turn to do programmed logic device 111 for can produce the online testing package, and can receive the online testing package, and can judge the online testing package state of the network trunk device 11 of local side 1 and long-range 2.
This entity circuit (PHY) but 112 with programmed logic device 111 be electric connection, but can receive the online testing package that programmed logic device 111 is produced simultaneously, and with this online testing package transmission that receives to long-range relay, and this entity circuit (PHY) 112 also is provided with the connectivity port that can be connected with transmission line 3, and this transmission line 3 can be transmission lines such as optical fiber, twisted-pair feeder or coaxial cable for corresponding connectivity port.
Yet for avoiding confusion, but the programmed logic device 111 of this explanation indication is meant an online testing R-T unit, but and in this implementation, will replace the use of online testing R-T unit one speech with programmed logic device or microprocessor, close and give Chen Ming; This online testing R-T unit then can comprise programmable logic element (Programmable Logic Device or claim PLD), on-the-spot Progranunable Array Logic (Field Programmable Gate Array or claim FPGA), also can be CPU or the μ P of tool logical operation function, therefore above-mentioned online testing R-T unit all refers to the device of tool online testing transmission-receiving function, contained by the present invention so can reach the form of aforementioned effect such as, simple and easy modification of this kind and equivalent structure change, all should in like manner be contained in the claim of the present invention, close and give Chen Ming.
Please cooperate simultaneously and consult Fig. 1, shown in Figure 2, but but be the system block diagrams of the relay of tool programmed logic device of the present invention and the relay online testing flow chart of tool programmed logic device, by can know among the figure find out when local side 1 and long-range 2 network trunk device 11,21 for after utilizing transmission line 3 and forming electric connection, it is online to carry out the package test network according to the following step:
(100) but after the programmed logic device 111 of the network trunk device 11 of local side 1 produces the online testing packages, and the online testing package transferred to entity circuit (PHY) 112 and transmission line 3 in regular turn;
(101) the online testing package transfers to long-range 2 network trunk device 21 by transmission line 3, and by the entity circuit (PHY) of long-range 2 network trunk device 21 212 but the online testing package is sent to long-range 2 programmed logic device 211;
(102) if long-range 2 network trunk device 21 is received test packets or package in the scheduled time damage or loss are not arranged, transfer path, on line state or the data transfer state that can judge the network trunk device is unusual state, and produces circular information or show by network trunk device 21.
When above-mentioned steps is carried out, between the network trunk device 11 of local side 1 and long-range 2 the network trunk device 21, with its entity circuit (PHY) 112 separately, 212 are connected with transmission line 3, make each internetwork network trunk device 11 and 21 carry out transfer of data, under the state of transfer of data, but the programmed logic device 111 of the network trunk device 11 of local side 1 can produce the online testing package, and with the entity circuit (PHY) 112 of online testing package transmission to network trunk device 11, and entity circuit (PHY) 112 is transferred to this online testing package long-range 2 network trunk device 21 again via transmission line 3, the entity circuit (PHY) 212 for the treatment of long-range 21 network trunk device 21 receives after the online testing package, again with the online testing package via the entity circuit (PHY) of network trunk device 21 but 212 be sent to programmed logic device 211, yet, if long-range 2 network trunk device 21 is received test packets or package in the scheduled time damage or loss are not arranged, can judge network trunk device 11,21 transfer path, on line state or data transfer state are unusual state, moreover, but should also can send the online testing package by programmed logic device 211, and this test packets is transferred in regular turn the entity circuit (PHY) 212 of network trunk device 21, and entity circuit (PHY) 212 is transferred to test packets the network trunk device 11 of local side 1 again via transmission line 3, and judge the transfer path of network trunk device according to above-mentioned step, whether on line state or data transfer state are unusual state, and, when judged result is that the network trunk device 21 of transmission line 3 or long-range 2 occurs when unusual, but the programmed logic device 111 of the network trunk device 11 of local side 1 can produce circular information, and circular information can be transferred to other long-range 2 network trunk device 21 via other normal transmission line 3, and make other long-range network trunk device 21 be learnt that the network trunk device 21 of which transmission line 3 or long-range 2 occurs unusual, and can avoid transfer of data to unusual transmission line 3 or long-range 2 network trunk device 21, yet, but the programmed logic device 111 of the network trunk device 11 of this local side 1 also can be called out or wake up (WAKE UP) another long-range network trunk device except can producing circular information.
Moreover, in the network trunk device architecture of tool network on-line testing package of the present invention, network trunk device 11,21 is for sending or receive the online testing package of plural number simultaneously, and each online testing package is can be from different network trunk device 11,21, therefore when network online comparatively huge, network trunk device 11,21 also can carry out the above-mentioned online method of package test network with electronic installation (personal computer, supervisory control system etc.) except carrying out the online testing with other network trunk device 11,21.
See also shown in Figure 3, but relay system block diagrams for another tool programmed logic device of the present invention, find out each network trunk device 11 by knowing among the figure, 21 for having the medium access control circuit (MAC) 113 and 213 that meets the OSI framework, but and can be with programmed logic device 111, the 211 online testing packages that produced are by entity circuit (PHY) 112,113 transmit, by this, the network trunk device 11 of local side 1 and long-range 2 network trunk device 21 are when carrying out transfer of data, but the programmed logic device 111 of the network trunk device 11 of local side 1 will produce the online testing package, test packets with combine by medium access control circuit (MAC) 113 data of being transmitted, form and meet institute's specification data package form under the OSI framework, and the entity circuit (PHY) 112 of this online testing package via network trunk device 11 externally sent with transmission line 3, after the data packet of OSI framework receives via long-range 2 network trunk device 21, but data packet can be handled by the programmed logic device 211 of network trunk device 21, yet when not receiving that as if network trunk device 21 online testing package or this online testing package have damage or loss in the scheduled time, can judge network trunk device 11,21 transfer path, on line state or data transfer state are unusual state; In like manner, the online testing package that network trunk device 21 is produced also can be incorporated in the data waiting for transmission, and be transferred to the network trunk device 11 of local side 1 again through transmission line 3, judge by this whether transmission line 3 or online network trunk device occur unusually, when judged result is that transmission line 3 or online network trunk device occur when unusual, but the programmed logic device 111 of the network trunk device 11 of local side 1 can produce circular information, and it is unusual to make network manager or user can learn by this that transmission line occurs, and can carry out maintenance in the very first time.
See also shown in Figure 4, system block diagrams for the relay of tool microprocessor of the present invention, by can know among the figure find out this figure and above-mentioned Fig. 3 different be in, this network trunk device 11 and 21 is provided with and can produces the online testing package, and the microprocessor 114 that can receive the online testing package, and this microprocessor 114 is with medium access control circuit (MAC) 113 that meets the OSI framework and entity circuit (PHY) 112 and is electrical connected, by this, the network trunk device 11 of local side 1 and long-range 2 network trunk device 21 are when carrying out transfer of data, the microprocessor 114 of the network trunk device 11 of local side 1 can produce the online testing package, this online testing package combines with the transmission data of medium access control circuit (MAC) 113 again, form and meet institute's specification data package form under the OSI framework, and the entity circuit (PHY) 112 of this online testing package via network trunk device 11 externally sent with transmission line 3, yet when not receiving that as if long-range 2 network trunk device 21 this online testing package or this online testing package have damage or loss in the scheduled time, can judge network trunk device 11,21 transfer path, on line state or data transfer state are unusual state.
Yet, see also shown in Figure 4 again, this network trunk device 11 or 21 is except can producing circular information, also can further be provided with the display unit 115,215 that can show that transfer path, on line state and data transfer state be whether unusual, this display unit 115,215 can be by literal, cresset, numerical value or chart mode the on line state of network trunk device 11 or 12 is shown, contained by the present invention so can reach the form of aforementioned effect such as; Moreover, network trunk device 11 of the present invention or 21 can be the network trunk device of interchanger (Switch) or router tool network on-line testing packages such as (Router), and therefore above-mentioned simple and easy modification and equivalent structure change, all should in like manner be contained in the claim of the present invention, close and give Chen Ming.
The network trunk device of tool network on-line testing package of the present invention is for improving the prior art key:
One, no matter be local side 1 or long-range 2 network trunk device 11,21, when carrying out general transfer of data, but can be via programmed logic device 111,211 or microprocessor 114,214 send or receive the online testing package, and by detecting the delivery status of online package in a period of time that transmits, whether judge transmission line 3 or online network trunk device occurs unusually, therefore can forgo located by prior art near-end and long-range entity circuit just often on line state, the medium access control circuit (MAC) of the network trunk device at these two ends is the defective of the data packet of sending and receiving normally just not necessarily, also therefore transmission and the reception by the online testing package, network manager or supervisory control system can judge whether transmission line 3 or online network trunk device occur unusually by the state of online testing package, therefore can be in the fastest time interior at unusual transmission line 3 or online network trunk device 11,21 carry out maintenance, moreover, when transmission network is connected with industrial equipment or safety system, user or network manager are finding transmission line 3 or arbitrary network trunk device 11, when 21 appearance are unusual, can notify Field Force or person skilled to keep in repair and safeguard immediately, or by network trunk device 11,21 wake the network trunk device of (WAKE UP) other end up, and change the path of transfer of data by this, therefore can avoid transmission line 3 or arbitrary network trunk device 11,21 produce interruption or fault, cause the user of local side or the awkward situation that the network manager can't carry out Long-distance Control.
Two, network trunk device 11, but 21 can utilize programmed logic device 111,211 or microprocessor 114,214 produce the online testing package, therefore can solve the puzzlement that reaction time that each tame manufacturer only utilizes the entity circuit to detect on line state differs, and in order to ensure reflecting online state within a certain period of time, but then utilize the entity circuit layer more the programmed logic device or the microprocessor on upper strata produce the on line state that the online testing package comes the TSTTRK test trunk device, whether can improve the on line state detecting function that the entity circuit layer itself only possesses by this but can't detect package has and loses or the shortcoming of damage.
Three, pass through the setting of display unit 115,215, user or manager can know whether transfer path, on line state and the data transfer state of understanding or browse network relay 11 or 21 are in unusual state, therefore user or manager need not install the on line state that extra application program can monitor each relay, and the manager can confirm or keeps in repair when this relay of maintenance at unusual cresset or numerical value.
The above, only be preferred embodiment of the present invention, non-so promptly limit to claim of the present invention, so the simple and easy modification and the equivalent structure that use specification of the present invention and graphic content to do such as change, all should in like manner be contained in the claim of the present invention, close and give Chen Ming.
In sum, the network trunk device of tool network on-line testing package of the present invention can reach its effect and purpose really, so the present invention is the invention of a practicality excellence really, meets the application important document of patent of invention, files an application in accordance with the law.
Claims (16)
1. the network trunk device of a tool network on-line testing package, this network trunk device connects by transmission line and carries out the test of on line state by the online testing package, and wherein this network trunk device includes:
Online testing R-T unit, this online testing R-T unit transmit or receive the online testing package, and judge the transmission or the accepting state of online testing package;
The medium access control circuit, this medium access control circuit and online testing R-T unit are electric connection, and the online testing package that the online testing R-T unit can be produced is combined into and meets institute's specification data package form under the OSI framework; And
The entity circuit, this entity circuit system is electric connection with the medium access control circuit, and can receive the online testing package that combines with medium access control circuit institute by the online testing R-T unit, or will be sent to the network trunk device of the other end by the online testing package that the online testing R-T unit combines with medium access control circuit institute.
2. the network trunk device of tool network on-line testing package as claimed in claim 1, wherein this network trunk device is interchanger or router.
3. the network trunk device of tool network on-line testing package as claimed in claim 1, wherein this network trunk device can be connected and carry out online testing with personal computer or supervisory control system.
4. the network trunk device of tool network on-line testing package as claimed in claim 1, wherein this network trunk device is provided with display unit, and this display unit shows the state that on line state or data transmit by the mode of literal, cresset, numerical value or chart.
5. the network trunk device of tool network on-line testing package as claimed in claim 1, wherein this network trunk device is the online testing package that can send or receive plural number simultaneously, and each online testing package is from different network trunk devices.
6. the network trunk device of tool network on-line testing package as claimed in claim 1, wherein this network trunk device can wake the network trunk device of the other end up.
7. the network trunk device of tool network on-line testing package as claimed in claim 1, wherein this online testing R-T unit is the online testing R-T unit of the tool generation online testing packet function of CPU, μ P, PLD or FPGA.
8. the network trunk device of tool network on-line testing package as claimed in claim 1, wherein this online testing R-T unit directly and the entity circuit be and be electrical connected.
9. the network trunk device of tool network on-line testing package as claimed in claim 1, wherein this an entity circuit and a PLD are and are electrical connected.
10. the network trunk device of a tool network on-line testing package refers to that especially the network trunk device of plural number carries out the test of on line state by the transmission line connection and by the network signal package, and wherein this network trunk device includes:
Online testing R-T unit, this online testing R-T unit be for can transmit or receive the online testing package, and can judge the transmission or the accepting state of online testing package; And
The entity circuit, this entity circuit system is electric connection with the online testing R-T unit, and receive the online testing package that is produced by the online testing R-T unit, or will be sent to the network trunk device of the other end by the online testing package that the online testing R-T unit is produced.
11. the network trunk device of tool network on-line testing package as claimed in claim 10, wherein this network trunk device is interchanger or router.
12. the network trunk device of tool network on-line testing package as claimed in claim 10, wherein this network trunk device can be connected and carry out online testing with personal computer or supervisory control system.
13. the network trunk device of tool network on-line testing package as claimed in claim 10, wherein this network trunk device is provided with display unit, and this display unit shows the state that on line state or data transmit by the mode of literal, cresset, numerical value or chart.
14. the network trunk device of tool network on-line testing package as claimed in claim 10, wherein this network trunk device is the online testing package that can send or receive plural number simultaneously, and each online testing package is from different network trunk devices.
15. the network trunk device of tool network on-line testing package as claimed in claim 10, wherein this network trunk device can wake the network trunk device of the other end up.
16. the network trunk device of tool network on-line testing package as claimed in claim 1, wherein this online testing R-T unit is the microprocessor of the tool generation online testing packet function of CPU, μ P, PLD or FPGA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100841026A CN101247324A (en) | 2007-02-16 | 2007-02-16 | Network relay unit with network on-line testing package |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100841026A CN101247324A (en) | 2007-02-16 | 2007-02-16 | Network relay unit with network on-line testing package |
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| CN101247324A true CN101247324A (en) | 2008-08-20 |
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| CNA2007100841026A Pending CN101247324A (en) | 2007-02-16 | 2007-02-16 | Network relay unit with network on-line testing package |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101807175B (en) * | 2009-02-12 | 2012-08-29 | 瑞昱半导体股份有限公司 | Integrated transmission circuit and method |
-
2007
- 2007-02-16 CN CNA2007100841026A patent/CN101247324A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101807175B (en) * | 2009-02-12 | 2012-08-29 | 瑞昱半导体股份有限公司 | Integrated transmission circuit and method |
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