CN101051964A - Method and system and device for collecting flow data - Google Patents
Method and system and device for collecting flow data Download PDFInfo
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Abstract
The method comprises: adding a time variable into a request message for getting the traffic accumulated value; according to the time variable, the monitored object returns the traffic accumulated value and its corresponding information to the traffic data collection device in order to make the traffic data collection device capable of getting the exact time corresponding to each traffic accumulated value, and further capable of calculating the exact traffic data.
Description
Technical field
The present invention relates to network management technology, particularly a kind of traffic data collection method, a kind of flow data collector system and a kind of flow data collector equipment.
Background technology
For whether the behaviour in service of monitor network resource is in busy state with real-time awareness network, need be thereby determine whether to network upgrade or dilatation.Have now and can gather the various flows in the network, for example interface input flow rate, interface output flow, interface bandwidth utilance, service quality (QoS) flow etc. as the NM server of flow data collector equipment.
Fig. 1 is the schematic diagram of flow data collector process of the prior art.As shown in Figure 1, to realize flow data collector based on Simple Network Management Protocol (SNMP), flow data collector equipment is that network management server (NMS) is example, existing a kind of traffic data collection method is: NMS is respectively at moment T1 and T2, twice same monitored object transmission SNMP request message in network, the flow accumulation value of acquisition request current time, after monitored object returns moment T1 and T2 corresponding flow accumulated value Count1 and Count2, NMS calculates the changing value of the flow accumulation value of obtaining from this monitored object two moment by formula (Count2-Count1)/(T2-T1), and with this changing value as final data on flows.
Wherein, comprise the statistical variable of the flow correspondence of the required collection of NMS in the SNMP request message, statistical variable is meant the data volume that adds up continuously and obtain of a certain index of record monitored object; Monitored object is the various network elements in the network.
Yet there is following problem in said method:
With network moment T1 operate as normal, busy at moment T2 be example, NMS is in moment T1 acquisition request flow accumulation value, because the network operate as normal of this moment, monitored object return to NMS with flow accumulation value Count1 at this moment at moment T1 immediately after the moment, T1 received request; But NMS is in moment T2 acquisition request flow accumulation value, because the network of this moment is busy, makes the SNMP request message postpone, and monitored object just receives the request of NMS at moment T3, and T3 flow accumulation value Count3 is constantly returned to NMS.Like this, the data on flows that NMS calculates is (Count3-Count1)/(T2-T1) rather than (Count2-Count1)/(T2-T1), makes data on flows produce deviation.
In order to address the above problem, existing another kind of traffic data collection method is: NMS is twice same monitored object transmission SNMP request message in network respectively, the flow accumulation value of acquisition request current time, NMS receives flow accumulation value Count1 and the Count2 that monitored object returns at moment T1 and T2, and calculate the changing value of the flow accumulation value of obtaining from this monitored object two moment by formula (Count2-Count1)/(T2-T1), and with this changing value as final data on flows.
Yet there is following problem in this method:
With network moment T1 operate as normal, busy at moment T2 and T3 be example, NMS is in moment T1 acquisition request flow accumulation value because the network operate as normal of this moment, NMS promptly receives the flow accumulation value Count1 that monitored object returns at moment T1; But NMS is in moment T2 acquisition request flow accumulation value, because the network of this moment is busy, make the SNMP request message postpone, monitored object just receives the request of NMS at moment T3, and T3 flow accumulation value Count3 constantly returned to NMS, same delay owing to the busy generation of network, NMS has received the flow accumulation value that monitored object returns at moment T4.Like this, the data on flows that NMS calculates is (Count3-Count1)/(T4-T1) rather than (Count3-Count1)/(T3-T1), makes data on flows produce deviation.
For the existing problem of above-mentioned traffic data collection method, also have a solution in the prior art, by increasing the time interval of twice request of NMS, make error that network delay produces can ignore than this time interval.Though this scheme has solved the problems referred to above to a certain extent, still there is error in the final data on flows that obtains, be not data on flows accurately.And the time interval of gathering is excessive, has reduced the efficient of flow data collector, also might miss peak-data, can't effectively reflect the behaviour in service of Internet resources.
As seen,, all can't eliminate the error of the busy generation of network, can not obtain data on flows accurately though exist many traffic data collection methods in the prior art.
Summary of the invention
In view of this, the invention provides a kind of traffic data collection method, a kind of flow data collector system and a kind of flow data collector equipment, can improve the accuracy of data on flows.
A kind of traffic data collection method provided by the invention comprises:
Flow data collector equipment is to monitored object acquisition request flow accumulation value and time information corresponding thereof;
Flow data collector equipment receives present flow rate accumulated value and the time information corresponding thereof that monitored object returns according to described request;
Flow data collector equipment is according to double flow accumulation value that receives and time information corresponding calculated flow rate data thereof.
Described temporal information is the internal time of described monitored object from self gathering, and the benchmark of the temporal information that receives for twice is identical.
Described flow data collector equipment is network management server NMS;
Described flow data collector equipment to monitored object acquisition request flow accumulation value and time information corresponding thereof is: NMS sends Simple Network Management Protocol SNMP request message to monitored object, carries the time variable of expression acquisition time information and the statistical variable that the flow accumulation value is obtained in expression in the described SNMP request message;
Described present flow rate accumulated value that returns and time information corresponding thereof carry with the SNMP response message in.
Described time variable comprises: sysUpTime or default custom variable.
Described statistical variable is one or more;
Described flow accumulation value is one or more, the respectively corresponding described statistical variable of each flow accumulation value.
Describedly be according to double flow accumulation value of returning and time information corresponding calculated flow rate data thereof:
Utilize formula (CountB-CountA)/(TB-TA) calculated flow rate data;
Wherein, CountA and CountB are the double flow accumulation value that receives, and TA is the CountA time information corresponding, and TB is the CountB time information corresponding.
A kind of flow data collector provided by the invention system comprises: at least one flow data collector equipment and at least one monitored object, wherein,
Described flow data collector equipment is to described monitored object acquisition request flow accumulation value and time information corresponding thereof; According to double flow accumulation value and the time information corresponding of returning thereof of monitored object, calculated flow rate data;
Described monitored object according to the request of described flow data collector equipment, returns to described flow data collector equipment with present flow rate accumulated value and time information corresponding thereof.
Described temporal information is the internal time of described monitored object from self gathering, and the benchmark of the temporal information that receives for twice is identical.
Described flow data collector equipment is network management server NMS;
Described request is a Simple Network Management Protocol SNMP request message, carries the time variable of expression acquisition time information and the statistical variable that the flow accumulation value is obtained in expression in the described SNMP request message.
Described time variable comprises: sysUpTime or custom variable.
Described statistical variable is one or more;
Described flow accumulation value is one or more, the respectively corresponding described statistical variable of each flow accumulation value.
A kind of flow data collector equipment provided by the invention comprises: main control unit and computing unit, wherein,
Described main control unit is to outside monitored object acquisition request flow accumulation value and time information corresponding thereof; The flow accumulation value and the time information corresponding thereof that receive are sent to described computing unit;
Described computing unit is according to the flow accumulation value and the time information corresponding calculated flow rate data thereof that receive from described main control unit continuously;
Described temporal information is the internal time of described outer monitoring object from self gathering, and the benchmark of the temporal information that receives for twice is identical.
Described request is a Simple Network Management Protocol SNMP request message, carries the time variable of expression acquisition time information and the statistical variable that the flow accumulation value is obtained in expression in the described SNMP request message.
Described time variable comprises: sysUpTime or default custom variable.
Described statistical variable is one or more;
Described flow accumulation value is one or more, respectively corresponding described statistical variable.
Described flow data collector equipment further comprises: the variable storage unit, all variablees among the storage SNMP and/or default custom variable, wherein, comprise that at least the time variable of expression acquisition time information and expression need acquisition stream quantitative statistics variable in the described default custom variable;
Described main control unit obtains statistical variable and time variable from described variable storage unit, and is carried in the described SNMP request message.
The present invention also provides a kind of computer software to comprise that some instructions are with so that a computer equipment is carried out traffic data collection method provided by the invention.
The present invention provides a kind of storage medium again, comprises aforementioned calculation machine software.
The present invention further provides a kind of computer equipment, comprised the software of carrying out data traffic collection provided by the invention and move the necessary hardware of this software.
As seen from the above technical solution, the present invention increases a time variable in the request message that obtains the flow accumulation value, monitored object returns to flow data collector equipment according to this time variable together with flow accumulation value and time information corresponding thereof, thereby make flow data collector equipment can know the correct time of each flow accumulation value correspondence, and then can calculate data on flows accurately.
And, when SNMP realizes technical scheme of the present invention, can adopt among the SNMP existing variable as time variable, thereby make that need not that the monitored object in the network is carried out any improvement can realize technical scheme of the present invention, so reduced technical solution of the present invention the realization cost, improved the feasibility of technical solution of the present invention and made technical scheme of the present invention have advantages of high practicability.
Description of drawings
Fig. 1 is the schematic diagram of flow data collector process of the prior art.
Fig. 2 is the schematic flow sheet of the traffic data collection method in the embodiment of the invention.
Fig. 3 is the schematic diagram of the flow data collector process in the embodiment of the invention.
Fig. 4 is the structural representation of the flow data collector system in the embodiment of the invention.
Embodiment
For making purpose of the present invention, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the present invention is described in more detail.
In the embodiment of the invention, in the request message that obtains the flow accumulation value, increase a time variable, monitored object returns to flow data collector equipment according to this time variable together with flow accumulation value and time information corresponding thereof, thereby make flow data collector equipment can know the correct time of each flow accumulation value correspondence, and then can calculate data on flows accurately.
Below, to realize that based on SNMP flow data collector, flow data collector equipment are that NMS is an example, the technical scheme in the embodiment of the invention is elaborated.
Fig. 2 is the schematic flow sheet of the traffic data collection method in the embodiment of the invention.As shown in Figure 2, to realize that based on SNMP flow data collector is that example, flow data collector equipment are that NMS is an example, the traffic data collection method in the present embodiment may further comprise the steps:
In this step, time variable can be existing variable among the SNMP, for example object identity (Oid) is the sysUpTime of 1.3.6.1.2.1.1.3.0, and this variable is a defined time variable, and the expression current time is with respect to system start-up running time constantly; Time variable in the present embodiment also can be other existing variable or custom variable; The statistical variable that also comprises the flow correspondence of the required collection of NMS in the SNMP request message, this statistical variable can also can be custom variable for existing variable among the SNMP; Statistical variable can be one or more, respectively one or more in the indexs such as corresponding interface input flow rate, interface output flow, interface bandwidth utilance, QoS flow.
If comprise a plurality of statistical variables in the SNMP request message, then in this step, the flow accumulation value of then carrying in the SNMP response message is also for a plurality of, the corresponding a plurality of statistical variables of difference, and because a plurality of flow accumulation values are the flow accumulation value of synchronization, therefore, temporal information still is one.
In this step, can utilize formula (CountB-CountA)/(TB-TA) calculated flow rate data.Wherein, CountA be double in before the flow accumulation value that once receives, TA is the CountA time information corresponding; CountB be double in after the flow accumulation value that once receives, TB is the CountB time information corresponding.
So far, this flow process finishes.
In the above-mentioned flow process, step 201～step 203 can promptly can be monitored every index of monitored object incessantly for the process of a circulation execution.
In the above-mentioned flow process, the temporal information that NMS receives is a monitored object from the internal time of self gathering, thereby the benchmark of the temporal information that receives for twice of NMS is identical.
By above-mentioned flow process as seen, NMS increases a time variable in the request message that obtains the flow accumulation value, monitored object returns to NMS according to this time variable together with flow accumulation value and time information corresponding thereof, thereby make NMS can know the correct time of each flow accumulation value correspondence, and then can calculate data on flows accurately.
And, because all in the network all can be discerned sysUpTime as the network element of monitored object, therefore, if adopt sysUpTime as time variable, can not realize technical scheme in the embodiment of the invention thereby do not need that the network element as monitored object is carried out any modification, and then reduce the realization cost of technical scheme in the embodiment of the invention, improved its feasibility and made the technical scheme in the embodiment of the invention have advantages of high practicability.
If adopt other existing variable or custom variables, do not need the network element as monitored object is carried out bigger modification yet, only need simple modification relevant configuration can realize the technical scheme in the embodiment of the invention.
Below, in conjunction with instantiation technique scheme is further specified.
Fig. 3 is the schematic diagram of the flow data collector process among the present invention.As shown in Figure 3, to realize that based on SNMP flow data collector is that example, flow data collector equipment are that NMS is an example, NMS sends at moment T1 monitored object in network and carries the SNMP request message of time variable, the flow accumulation value and the time information corresponding thereof of acquisition request current time, monitored object returns the flow accumulation value Count1 in this moment and corresponding expression thereof the temporal information of T1 constantly at moment T1, because the busy delay that causes of network, NMS has received the temporal information of the expression moment T1 of flow accumulation value Count1 and correspondence thereof at moment T2.Afterwards, NMS sends to this monitored object at moment T3 again and carries the SNMP request message of time variable, the flow accumulation value and the time information corresponding thereof of acquisition request current time, because the busy delay that causes of network, this monitored object has received this SNMP request message at moment T4, and return the flow accumulation value Count4 in this moment and corresponding expression thereof the temporal information of T4 constantly at moment T4 immediately, because the busy delay that causes of network, NMS has received the temporal information of the expression moment T4 of flow accumulation value Count4 and correspondence thereof at moment T5.At this moment, NMS calculates data on flows by formula: (Count4-Count1)/(T4-T1), and this data on flows is not subjected to NMS to send the time of request message and receive the influence of the time of flow accumulation value, thereby the data on flows that obtains than existing traffic data collection method is more accurate.
More than be explanation to the traffic data collection method in the embodiment of the invention, below, again flow data collector system and equipment in the embodiment of the invention are elaborated.
Fig. 4 is the structural representation of the flow data collector system in the embodiment of the invention.As shown in Figure 4, to realize that based on SNMP flow data collector is that example, flow data collector equipment are that NMS is an example, the flow data collector system in the present embodiment comprises: at least one NMS 401 and at least one monitored object 402.
Wherein, also comprise the statistical variable of the flow correspondence of the required collection of NMS in the SNMP request message, this statistical variable can also can be custom variable for existing variable among the SNMP; Statistical variable can be one or more, respectively one or more in the indexs such as corresponding interface input flow rate, interface output flow, interface bandwidth utilance, QoS flow;
Wherein, if comprise a plurality of statistical variables in the SNMP request message, then the monitored object 402 flow accumulation value of carrying in the SNMP response message is also for a plurality of, the corresponding a plurality of statistical variables of difference, and because a plurality of flow accumulation values are the flow accumulation value of synchronization, therefore, temporal information still is one.
In the present embodiment, temporal information is a monitored object 402 from the internal time of self gathering, thereby the benchmark of the temporal information that receives for twice of NMS 401 is identical.
Specifically, the NMS 401 as flow data collector equipment comprises in the above-mentioned flow data collector system: main control unit 411, computing unit 412 and variable storage unit 413.
Wherein, CountA be double in before the flow accumulation value that once receives, TA is the CountA time information corresponding; CountB be double in after the flow accumulation value that once receives, TB is the CountB time information corresponding.
In the practical application, can further include other functional units to realize other processing procedure as the NMS 401 of flow data collector equipment.
Such scheme in the embodiment of the invention all is to realize that based on SNMP flow data collector, flow data collector equipment are that NMS is an example, in the practical application, also can realize based on other agreements.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium, comprise some instructions with so that the computer equipment of a broad sense (as personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
The above is preferred embodiment of the present invention only, is 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 and replace and improvement etc., all should be included within protection scope of the present invention.
Claims (20)
1, a kind of traffic data collection method is characterized in that, comprising:
Flow data collector equipment is to monitored object acquisition request flow accumulation value and time information corresponding thereof;
Flow data collector equipment receives present flow rate accumulated value and the time information corresponding thereof that monitored object returns according to described request;
Flow accumulation value and time information corresponding calculated flow rate data thereof that flow data collector equipment receives for twice according to front and back.
2, the method for claim 1 is characterized in that, described temporal information is the internal time of described monitored object from self gathering, and the benchmark of the temporal information that receives for twice is identical.
3, method as claimed in claim 2 is characterized in that, described flow data collector equipment is network management server NMS;
Described flow data collector equipment to monitored object acquisition request flow accumulation value and time information corresponding thereof is: NMS sends Simple Network Management Protocol SNMP request message to monitored object, carries the time variable of expression acquisition time information and the statistical variable that the flow accumulation value is obtained in expression in the described SNMP request message;
Described present flow rate accumulated value that returns and time information corresponding thereof are carried in the SNMP response message.
4, method as claimed in claim 3 is characterized in that, described time variable comprises: sysUpTime or default custom variable.
5, method as claimed in claim 3 is characterized in that, described statistical variable is one or more;
Described flow accumulation value is one or more, the respectively corresponding described statistical variable of each flow accumulation value.
As any described method in the claim 1 to 5, it is characterized in that 6, described flow accumulation value and the time information corresponding calculated flow rate data of returning for twice according to front and back thereof are:
Utilize formula (CountB-CountA)/(TB-TA) calculated flow rate data;
Wherein, CountA and CountB are the flow accumulation value that front and back receive for twice, and TA is the CountA time information corresponding, and TB is the CountB time information corresponding.
7, a kind of flow data collector system is characterized in that, comprising: at least one flow data collector equipment and at least one monitored object, wherein,
Described flow data collector equipment is to described monitored object acquisition request flow accumulation value and time information corresponding thereof; According to flow accumulation value and the time information corresponding thereof that twice is returned before and after the monitored object, calculated flow rate data;
Described monitored object according to the request of described flow data collector equipment, returns to described flow data collector equipment with present flow rate accumulated value and time information corresponding thereof.
8, system as claimed in claim 7 is characterized in that, described temporal information is the internal time of described monitored object from self gathering, and the benchmark of the temporal information that receives for twice is identical
As claim 7 or 8 described systems, it is characterized in that 9, described flow data collector equipment is network management server NMS;
Described request is a Simple Network Management Protocol SNMP request message, carries the time variable of expression acquisition time information and the statistical variable that the flow accumulation value is obtained in expression in the described SNMP request message.
10, system as claimed in claim 9 is characterized in that, described time variable comprises: sysUpTime or custom variable.
11, system as claimed in claim 9 is characterized in that, described statistical variable is one or more;
Described flow accumulation value is one or more, the respectively corresponding described statistical variable of each flow accumulation value.
12, a kind of flow data collector equipment is characterized in that, comprising: main control unit and computing unit, wherein,
Described main control unit is to outside acquisition request flow accumulation value and time information corresponding thereof; The flow accumulation value and the time information corresponding thereof that receive are sent to described computing unit;
Described computing unit, the flow accumulation value and the time information corresponding calculated flow rate data thereof that receive from described main control unit for twice according to front and back.
13, flow data collector equipment as claimed in claim 12 is characterized in that, described temporal information is the internal time of outer monitoring object from self gathering, and the benchmark of the temporal information that receives for twice is identical.
14, flow data collector equipment as claimed in claim 13, it is characterized in that, described request is a Simple Network Management Protocol SNMP request message, carries the time variable of expression acquisition time information and the statistical variable that the flow accumulation value is obtained in expression in the described SNMP request message.
15, flow data collector equipment as claimed in claim 14 is characterized in that, described time variable comprises: sysUpTime or default custom variable.
16, flow data collector equipment as claimed in claim 14 is characterized in that, described statistical variable is one or more;
Described flow accumulation value is one or more, respectively corresponding described statistical variable.
17, as any described flow data collector equipment in the claim 14 to 16, it is characterized in that,
Described flow data collector equipment further comprises: the variable storage unit, all variablees among the storage SNMP and/or default custom variable, wherein, comprise that at least the time variable of expression acquisition time information and expression need acquisition stream quantitative statistics variable in the described default custom variable;
Described main control unit obtains statistical variable and time variable from described variable storage unit, and is carried in the described SNMP request message.
18, a kind of computer software comprises that some instructions are used so that a computer equipment is carried out as the described traffic data collection method of claim 1 to 6.
19, a kind of storage medium comprises computer software as claimed in claim 18.
20, a kind of computer equipment comprises that execution is as the software of traffic data collection method as described in the claim 1 to 6 and move the necessary hardware of this software.
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| CNB2007101052198A CN100512162C (en) | 2007-05-21 | 2007-05-21 | Method and system and device for collecting flow data |
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| CNB2007101052198A CN100512162C (en) | 2007-05-21 | 2007-05-21 | Method and system and device for collecting flow data |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101237352B (en) * | 2008-03-05 | 2010-09-22 | 杭州华三通信技术有限公司 | Traffic data collection method, system and device |
| CN102546202A (en) * | 2010-12-17 | 2012-07-04 | 无锡江南计算技术研究所 | Unlimited bandwidth network flow monitoring method, device and system |
| CN103023701A (en) * | 2012-12-07 | 2013-04-03 | 瑞斯康达科技发展股份有限公司 | Method and device for analyzing performance parameters of network management system |
| CN103812721A (en) * | 2012-11-15 | 2014-05-21 | 中国移动通信集团江苏有限公司 | PTN (Packet Transport Network) traffic monitoring method, system setting method and device |
| CN112187589A (en) * | 2020-11-10 | 2021-01-05 | 珠海市新德汇信息技术有限公司 | System testing method based on flow playback |
| CN112637118A (en) * | 2020-11-10 | 2021-04-09 | 国网浙江省电力有限公司双创中心 | Flow analysis implementation method based on internal and external network drainage abnormity |
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2007
- 2007-05-21 CN CNB2007101052198A patent/CN100512162C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101237352B (en) * | 2008-03-05 | 2010-09-22 | 杭州华三通信技术有限公司 | Traffic data collection method, system and device |
| CN102546202A (en) * | 2010-12-17 | 2012-07-04 | 无锡江南计算技术研究所 | Unlimited bandwidth network flow monitoring method, device and system |
| CN103812721A (en) * | 2012-11-15 | 2014-05-21 | 中国移动通信集团江苏有限公司 | PTN (Packet Transport Network) traffic monitoring method, system setting method and device |
| CN103023701A (en) * | 2012-12-07 | 2013-04-03 | 瑞斯康达科技发展股份有限公司 | Method and device for analyzing performance parameters of network management system |
| CN103023701B (en) * | 2012-12-07 | 2015-08-05 | 瑞斯康达科技发展股份有限公司 | The analytical method of performance parameter and device in network management system |
| CN112187589A (en) * | 2020-11-10 | 2021-01-05 | 珠海市新德汇信息技术有限公司 | System testing method based on flow playback |
| CN112637118A (en) * | 2020-11-10 | 2021-04-09 | 国网浙江省电力有限公司双创中心 | Flow analysis implementation method based on internal and external network drainage abnormity |
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|---|---|
| CN100512162C (en) | 2009-07-08 |
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Granted publication date: 20090708 |