CN101296132A - Method, system and device for monitoring network interface card - Google Patents
Method, system and device for monitoring network interface card Download PDFInfo
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- CN101296132A CN101296132A CNA2008101153954A CN200810115395A CN101296132A CN 101296132 A CN101296132 A CN 101296132A CN A2008101153954 A CNA2008101153954 A CN A2008101153954A CN 200810115395 A CN200810115395 A CN 200810115395A CN 101296132 A CN101296132 A CN 101296132A
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Abstract
The invention discloses a method for monitoring a network card, which is applied to a monitoring device monitoring the connection state of the network card. The method comprises the steps that: the monitoring device monitors the current connection state of the network card and when the connection state is abnormal, a main processor is triggered to carry out interrupt processing. The invention also discloses a system and a monitoring device for monitoring the network card. The method, the system and the device of the invention can save the step that the main processor reads a connection state register in every preset period of time to obtain the current connection state of a network card in the prior art, which saves the resources of the main processor.
Description
Technical field
The present invention relates to the network monitor technology, relate in particular to a kind of method, system and a kind of monitoring device of network interface card.
Background technology
Network interface board is called communication adapter (adapter) or network interface unit (NIC:NetworkInterface Card) again, generally, is called for short network interface card.
Network interface card is the networking component that is operated in data link layer, it is the interface that connects computer and transmission medium in the local area network (LAN), physical connection and signal of telecommunication coupling between itself and the local area network (LAN) transmission medium can not only be realized, operations such as the encoding and decoding of the encapsulation of the transmission of frame and reception, frame and opening, medium access control, data and metadata cache can also be realized relating to.And when network interface card was realized aforesaid operations, the connection status that detects network interface card was institute's necessary procedure in the communication, below the process that detects the network interface card connection status in the prior art was described.
Referring to Fig. 1, Fig. 1 is the system construction drawing that detects the network interface card connection status in the prior art, and among this embodiment, network interface card is ether (Ethernet) network interface card.As shown in Figure 1, this structure mainly comprises: CPU1 01, Ethernet card 102, light-emitting diode 103, network transformer 104 and network interface 105.
Wherein, when network interface card such as Ethernet card are installed, the device driver of management network interface card must be installed in the operation system of computer.Generally, the device driver with the management network interface card is installed on the CPU in the computer system.Like this, in follow-up operation, the device driver of this management network interface card drives network interface card and how to operate, and where comes data block that storage area network sends etc. such as what, notice network interface card should utilize memory.In the present embodiment, the device driver of management ethernet card 102 is installed on the CPU101.
Ethernet card 102 mainly comprises the connection status register (Link Status Register) of processor and storage this network interface card self connection status.CPU101 is connected by bus is two-way with external Ethernet card 102, and it is used for data waiting for transmission are sent to Ethernet card 102.Ethernet card 102 is used to receive the data from CPU101, and gives network transformer 104 with this transfer of data, these data is sent as RJ-45 by network interface 105 at last.
In above-mentioned data transmission procedure, the connection status of Ethernet card 102 is detected the step that is absolutely necessary.During specific implementation, the device driver of the management ethernet card 102 on the CPU101 reads the connection status that connection status register on the Ethernet card 102 is known Ethernet card 102 every default a period of time, and then carry out corresponding the processing according to the connection status of the Ethernet card of knowing 102, such as, if the connection status of the Ethernet card 102 known is for normal, then CPU101 can carry out data message with network interface card and exchanges.Be specially, CPU101 sends to Ethernet card 102 with data waiting for transmission.Ethernet card 102 receives the data from CPU101, and gives network transformer 104 with this transfer of data, these data is sent as RJ-45 by network interface 105 at last.If the connection status of the Ethernet card of knowing 102 is for unusual, then CPU carries out Interrupt Process.But if in a very long time, the connection status of network interface card all is normal, and CPU also will read the connection status that this connection status register is known current network interface card every default a period of time, has wasted the resource of CPU so greatly.
Summary of the invention
The invention provides a kind of method, system and a kind of monitoring device of network interface card, the resource that can save primary processor.
The method of a kind of network interface card provided by the present invention is provided for the monitoring device of network interface card connection status, comprising:
The current connection status of described monitoring device network interface card, triggers primary processor and carries out Interrupt Process when being unusual in described connection status.
Preferably, before the current connection status of described monitoring device network interface card, further comprise: the down trigger condition that primary processor is set;
Described triggering primary processor is carried out Interrupt Process and is comprised:
The signal of telecommunication that monitoring device output is corresponding with unusual connection status;
Primary processor is judged the current down trigger condition that reaches according to the described signal of telecommunication, carries out Interrupt Process.
Preferably, it is characterized in that this method further comprises:
For just often, monitoring device is exported and the normal corresponding signal of telecommunication of connection status in described connection status;
Primary processor is carried out and is carried out the processing that data message exchanges with network interface card according to the described signal of telecommunication.
Preferably, described monitoring device is a photoelectrical coupler;
The corresponding signal of telecommunication of described with unusual connection status is: equal 0 volt voltage signal;
The corresponding signal of telecommunication of described and normal connection status is: greater than 0 volt voltage signal.
Preferably, described down trigger condition is that trailing edge triggers;
Described primary processor judges that according to the described signal of telecommunication the current down trigger condition that reaches is:
Primary processor judges that the described signal of telecommunication last voltage signal greater than 0 volt of serving as reasons drops to the current voltage signal that equals 0 volt.
Preferably, monitor the current connection status of network interface card at described monitoring device after, further comprise:
Monitoring device is converted into one of two opposite states with the result of current monitoring and shows that described two opposite states indicate the current connection status of described network interface card whether unusual respectively.
Preferably, described monitoring device is a photoelectrical coupler;
Described monitoring device is converted into one of two opposite states with the result of current monitoring and shows and comprise:
For just often, photoelectrical coupler is luminous in the current connection status of network interface card; Otherwise photoelectrical coupler is not luminous.
The system of a kind of network interface card provided by the present invention comprises: network interface card, monitoring device and primary processor; Wherein,
Described monitoring device is used to monitor the current connection status of described network interface card, and, triggers described primary processor and carry out Interrupt Process when being unusual in described connection status.
Preferably, when described monitoring device is unusual in described connection status, export the signal of telecommunication corresponding with unusual connection status;
Described primary processor is judged the current down trigger condition that reaches setting according to the described signal of telecommunication, carries out Interrupt Process.
Preferably, described monitoring device, is exported and the normal corresponding signal of telecommunication of connection status for just often in described connection status;
Described primary processor carries out data message with network interface card and exchanges according to the described signal of telecommunication.
Preferably, described monitoring device is a photoelectrical coupler.
A kind of monitoring device provided by the present invention comprises: monitoring means and trigger element; Wherein,
Described monitoring means is used for the current connection status of network interface card;
Described trigger element is used in described connection status triggering primary processor and carrying out Interrupt Process when being unusual.
Preferably, when described trigger element is unusual in described connection status, export the signal of telecommunication corresponding, utilize the described signal of telecommunication, trigger primary processor and carry out Interrupt Process with unusual connection status.
Preferably, this device also comprises:
Display unit is used for result with the current monitoring of described monitoring means and is converted into one of two opposite states and shows that described two opposite states indicate the current connection status of described network interface card whether unusual respectively.
From such scheme as can be seen, the present invention is by being provided for the monitoring device of network interface card connection status, during specific implementation, in the current connection status of this monitoring device network interface card when being unusual, trigger primary processor and carry out Interrupt Process, can avoid in the prior art no matter whether the connection status of network interface card is normal, primary processor all need read the step that this connection status register is known the current connection status of network interface card every default a period of time, and then saves the resource of primary processor.
Description of drawings
Fig. 1 is the structure composition diagram that detects the connection status of network interface card in the prior art;
Fig. 2 is the method flow diagram of network interface card in the embodiment of the invention;
Fig. 3 is the system construction drawing of network interface card in the embodiment of the invention;
Fig. 4 is the structural framing figure of monitoring device in the embodiment of the invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, below in conjunction with embodiment and accompanying drawing, the present invention is described in more detail.
The embodiment of the invention has proposed a kind of method of network interface card.In the method, at first need to be provided for the monitoring device of network interface card connection status, during specific implementation, this method comprises: the current connection status of described monitoring device network interface card,, trigger primary processor and carry out Interrupt Process when being unusual in described connection status.
Wherein, the mode of above-mentioned monitoring device network interface card connection status can have multiple, such as the connection status register of monitoring device network interface card inside, when this connection status register changes in the network interface card connection status, can upgrade the connection status that it is stored automatically.The connection status register of monitoring device network interface card inside is existing a kind of more common mode.Certainly, monitoring device network interface card connection status also can send to monitoring device etc. with the connection status of himself as network interface card in real time without the connection status register of network interface card inside.
Wherein, above-mentioned monitoring device can have various ways, and as being photoelectrical coupler, perhaps other can realize the device of function of the present invention.If above-mentioned monitoring device is a photoelectrical coupler, then in the connection status of network interface card for just often, this photoelectrical coupler can be luminous, and export a stable high level voltage, this high level voltage is greater than 0 volt.Correspondingly, be unusual as network interface card when connecting interruption in the connection status of network interface card, then photoelectrical coupler is not luminous, and exports a low level voltage, and this low level voltage equals 0 volt.Wherein, photoelectrical coupler is luminous or not luminous mainly be used to refer to the current connection status of user's network interface card whether normal.
As seen, in the method for the network interface card that the embodiment of the invention proposes, avoided in the prior art no matter whether the connection status of network interface card is normal, CPU need read this connection status register every default a period of time knows the step of the current connection status of network interface card, and then has saved the resource of CPU.
Lift whole implementation procedures that a specific embodiment illustrates the embodiment of the invention at the method for above-mentioned network interface card below.
Fig. 2 is the method flow diagram of network interface card in embodiments of the present invention.Among this embodiment, need at first be provided for the monitoring device of network interface card connection status, referring to Fig. 2, in the present embodiment, a kind of preferable implementation procedure of network interface card can may further comprise the steps:
In the present embodiment, monitoring device mainly is the current hardware connection status of network interface card, and particularly, but whether the hardware connection status of the connection status register real-time storage of monitoring device network interface card inside is normal.
In the present embodiment, whether above-mentioned two opposite states indicate the current connection status of network interface card normal respectively.If monitoring device is a photoelectrical coupler, then monitoring device is converted into one of two opposite states with the result of current monitoring and shows and can comprise in the above-mentioned steps 202: the current connection status that monitors network interface card at photoelectrical coupler is for just often, and this photoelectrical coupler is luminous; Otherwise photoelectrical coupler is not luminous.Wherein, this photoelectrical coupler is specifically as follows the LED coupler, such as, for just often, the LED display lamp in the LED coupler is bright in the current connection status of network interface card, otherwise the LED display lamp goes out.
In the present embodiment, monitoring device is exported the signal of telecommunication corresponding with current connection status, particularly after monitoring the current connection status of network interface card, monitoring device, is exported and the normal corresponding signal of telecommunication of connection status for just often in the current connection status that monitors network interface card; When monitoring device is unusual in the current connection status of the network interface card that monitors, export the signal of telecommunication corresponding with unusual connection status.If monitoring device is a photoelectrical coupler, then the current connection status that monitors network interface card at photoelectrical coupler is for just often, this photoelectrical coupler output stable greater than 0 volt voltage signal; When the current connection status that monitors network interface card at photoelectrical coupler is unusual, the voltage signal that this photoelectrical coupler output equals 0 volt.That is to say that the connection status of network interface card to unusual process, is the voltage of external photoelectrical coupler output is reduced to the voltage signal that equals 0 volt from the stable voltage signal greater than 0 volt process from normal.
In the present embodiment, before step 201, the down trigger condition of primary processor is set earlier usually, wherein, the flexibility ratio that this down trigger condition is set depends primarily on the characteristic of monitoring device.As: for monitoring device shown in above-mentioned in the current connection status that monitors network interface card for just often, output is greater than 0 volt voltage signal, in the current connection status that monitors network interface card when being unusual, output equals the situation of 0 volt voltage signal, and the down trigger condition that primary processor then can be set is that trailing edge triggers.Certainly, also have other modes that the down trigger condition of primary processor is set, this just needs the concrete condition concrete analysis.
In the present embodiment, if this monitoring device is a photoelectrical coupler, then the down trigger condition setting with primary processor is that trailing edge triggers, like this, the signal of telecommunication that above-mentioned basis is corresponding with unusual connection status, judge that the current down trigger condition that whether reaches primary processor can comprise: judge that the described signal of telecommunication last voltage signal greater than 0 volt of whether serving as reasons drops to the current voltage signal that equals 0 volt, if judge the current down trigger condition that reaches primary processor.
If primary processor is judged the down trigger condition that do not reach according to the signal of telecommunication corresponding with connection status, the connection status of promptly judging network interface card is for just often, then primary processor carries out data message according to the method for prior art with network interface card and exchanges, and be specially: network interface card will send from the data of primary processor; Perhaps, network interface card sends to primary processor with the data that needs send to primary processor, gives unnecessary details no longer one by one here.
As seen, above-mentioned steps is notified primary processor by triggering the mode of interrupting, can make primary processor in time learn the current connection status of network interface card, and then avoided that primary processor reads the step that this connection status register is known the connection status of current network interface card, the resource of having saved primary processor every default a period of time in the prior art.
Need to prove, there is no the sequencing in the fixing execution between above-mentioned steps 202 and the step 203.
Correspondingly, the present invention proposes a kind of system of network interface card.Referring to Fig. 3, this system can comprise: network interface card 301, monitoring device 302 and primary processor 303.
Wherein, monitoring device 302 is used for the current connection status of network interface card 301, and, triggers primary processor 303 and carry out Interrupt Process when being unusual in described connection status.
Preferably, in the present embodiment, network interface card 301 can be Ethernet card; Primary processor 303 can be CPU.
Preferably, when monitoring device 302 is unusual in described connection status, export the signal of telecommunication corresponding with unusual connection status.Like this, primary processor 303 can be judged the current down trigger condition that reaches setting according to this signal of telecommunication, carries out Interrupt Process.
In addition, monitoring device 302, is exported and the normal corresponding signal of telecommunication of connection status for just often in described connection status.Primary processor 303 can carry out data message with network interface card and exchange according to the described signal of telecommunication.Preferably, primary processor 303 can carry out data message with network interface card according to the method for prior art and exchanges.Such as, primary processor 303 sends the data that needs send to local area network (LAN) by network interface card.
Preferably, monitoring device 302 can be photoelectrical coupler.
During specific implementation, monitoring device can have multiple version, and Fig. 4 shows a kind of structural representation of monitoring device.As shown in Figure 4, this device can comprise monitoring means 401 and trigger element 402.
Wherein, monitoring means 401 is used for the current connection status of network interface card.
When the current connection status that trigger element 402 is used for monitoring out network interface card at monitoring means 401 is unusual, triggers primary processor and carry out Interrupt Process.
Preferably, trigger element 402 can when being unusual, be exported the signal of telecommunication corresponding with unusual connection status in described connection status, utilizes this signal of telecommunication, triggers primary processor and carries out Interrupt Process.
If the connection status of network interface card is normal, the trigger element 402 exportable and normal corresponding signals of telecommunication of connection status utilize this signal of telecommunication, and the triggering primary processor carries out data message with network interface card and exchanges.
In addition, for the current connection status of network interface card is indicated to the user, this device also can comprise: display unit 403.
Wherein, display unit 403 can be converted into the result that monitoring means 401 monitors one of two opposite states and show, wherein, whether described two opposite states indicate the current connection status of described network interface card unusual respectively.
Preferably, the current connection status that display unit 403 can be monitored out network interface card at monitoring means 401 is for just often, and is luminous; Otherwise, not luminous.
Need to prove, in the embodiment of the invention, the specific operation process of inner each unit of monitoring device can be consistent with the operation described in the method flow shown in Figure 2, and each unit can be the physical function unit, also can be SFU software functional unit, and each unit also can segment or merge, during specific implementation, those of ordinary skills can handle according to actual conditions, enumerate no longer one by one herein.
Above-described specific embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is preferred embodiment of the present invention; be not to be used to limit protection scope of the present invention; 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 protection scope of the present invention.
Claims (14)
1, a kind of method of network interface card is characterized in that, is provided for the monitoring device of network interface card connection status, and this method comprises:
The current connection status of described monitoring device network interface card, triggers primary processor and carries out Interrupt Process when being unusual in described connection status.
2, method according to claim 1 is characterized in that, before the current connection status of described monitoring device network interface card, further comprises: the down trigger condition that primary processor is set;
Described triggering primary processor is carried out Interrupt Process and is comprised:
The signal of telecommunication that monitoring device output is corresponding with unusual connection status;
Primary processor is judged the current down trigger condition that reaches according to the described signal of telecommunication, carries out Interrupt Process.
3, method according to claim 2 is characterized in that, this method further comprises:
For just often, monitoring device is exported and the normal corresponding signal of telecommunication of connection status in described connection status;
Primary processor carries out data message with network interface card and exchanges according to the described signal of telecommunication.
4, method according to claim 3 is characterized in that, described monitoring device is a photoelectrical coupler;
The corresponding signal of telecommunication of described with unusual connection status is: equal 0 volt voltage signal;
The corresponding signal of telecommunication of described and normal connection status is: greater than 0 volt voltage signal.
5, method according to claim 4 is characterized in that, described down trigger condition is that trailing edge triggers;
Described primary processor judges that according to the described signal of telecommunication the current down trigger condition that reaches is:
Primary processor judges that the described signal of telecommunication last voltage signal greater than 0 volt of serving as reasons drops to the current voltage signal that equals 0 volt.
6, method according to claim 1 is characterized in that, monitor the current connection status of network interface card at described monitoring device after, further comprise:
Monitoring device is converted into one of two opposite states with the result of current monitoring and shows that described two opposite states indicate the current connection status of described network interface card whether unusual respectively.
According to the method described in the claim 6, it is characterized in that 7, described monitoring device is a photoelectrical coupler;
Described monitoring device is converted into one of two opposite states with the result of current monitoring and shows and comprise:
For just often, photoelectrical coupler is luminous in the current connection status of network interface card; Otherwise photoelectrical coupler is not luminous.
8, a kind of system of network interface card is characterized in that, this system comprises: network interface card, monitoring device and primary processor; Wherein,
Described monitoring device is used to monitor the current connection status of described network interface card, and, triggers described primary processor and carry out Interrupt Process when being unusual in described connection status.
9, system according to claim 8 is characterized in that, when described monitoring device is unusual in described connection status, exports the signal of telecommunication corresponding with unusual connection status;
Described primary processor is judged the current down trigger condition that reaches setting according to the described signal of telecommunication, carries out Interrupt Process.
10, system according to claim 9 is characterized in that, described monitoring device, is exported and the normal corresponding signal of telecommunication of connection status for just often in described connection status;
Described primary processor carries out data message with network interface card and exchanges according to the described signal of telecommunication.
11, system according to claim 10 is characterized in that, described monitoring device is a photoelectrical coupler.
12, a kind of monitoring device is characterized in that, this device comprises monitoring means and trigger element; Wherein,
Described monitoring means is used for the current connection status of network interface card;
Described trigger element is used in described connection status triggering primary processor and carrying out Interrupt Process when being unusual.
13, device according to claim 12 is characterized in that, when described trigger element is unusual in described connection status, exports the signal of telecommunication corresponding with unusual connection status, utilizes the described signal of telecommunication, triggers primary processor and carries out Interrupt Process.
14, device according to claim 12 is characterized in that, this device also comprises:
Display unit is used for that the result that described monitoring means is monitored is converted into one of two opposite states and shows that described two opposite states indicate the current connection status of described network interface card whether unusual respectively.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008101153954A CN101296132A (en) | 2008-06-23 | 2008-06-23 | Method, system and device for monitoring network interface card |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008101153954A CN101296132A (en) | 2008-06-23 | 2008-06-23 | Method, system and device for monitoring network interface card |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105550091A (en) * | 2015-09-03 | 2016-05-04 | 刘晓建 | Monitoring card for PCI (Peripheral Component Interface)/PCIe (Peripheral Component Interface Express) device status and Gigabit network card link monitoring method |
| CN108429656A (en) * | 2018-02-28 | 2018-08-21 | 国云科技股份有限公司 | A method of monitoring physical machine network interface card connection status |
| CN109427289A (en) * | 2017-08-31 | 2019-03-05 | 西安诺瓦电子科技有限公司 | Display control program and remote monitoring method |
| CN110752972A (en) * | 2019-10-29 | 2020-02-04 | 北京浪潮数据技术有限公司 | Network card state monitoring method, device, equipment and medium |
| CN112235057A (en) * | 2020-09-08 | 2021-01-15 | 高新兴物联科技有限公司 | Method, device and equipment for monitoring network state and computer readable storage medium |
-
2008
- 2008-06-23 CN CNA2008101153954A patent/CN101296132A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105550091A (en) * | 2015-09-03 | 2016-05-04 | 刘晓建 | Monitoring card for PCI (Peripheral Component Interface)/PCIe (Peripheral Component Interface Express) device status and Gigabit network card link monitoring method |
| CN109427289A (en) * | 2017-08-31 | 2019-03-05 | 西安诺瓦电子科技有限公司 | Display control program and remote monitoring method |
| CN108429656A (en) * | 2018-02-28 | 2018-08-21 | 国云科技股份有限公司 | A method of monitoring physical machine network interface card connection status |
| CN110752972A (en) * | 2019-10-29 | 2020-02-04 | 北京浪潮数据技术有限公司 | Network card state monitoring method, device, equipment and medium |
| CN112235057A (en) * | 2020-09-08 | 2021-01-15 | 高新兴物联科技有限公司 | Method, device and equipment for monitoring network state and computer readable storage medium |
| CN112235057B (en) * | 2020-09-08 | 2022-08-12 | 高新兴物联科技有限公司 | Method, device and equipment for monitoring network state and computer readable storage medium |
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