CN109831315A - A kind of the dilatation forecasting methods and device of network flow - Google Patents
A kind of the dilatation forecasting methods and device of network flow Download PDFInfo
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Abstract
The embodiment of the present invention provides the dilatation forecasting methods and device of a kind of network flow, can realize that the dilatation of precision is predicted by the mass data of high frequency sampling.This method comprises: monitoring device samples network flow with predetermined sampling frequency, link data is obtained；The link flow of the corresponding link of any link identification ID is converted into the relative value of link flow；Within a predetermined period of time, if the relative value of the link flow of any sampling instant is greater than first threshold, the corresponding link of any link identification ID is recorded as accumulating value in the link flow of any sampling instant；Monitoring device is according to formulaAccumulating value in predetermined amount of time is converted into dilatation preparation value, and will build up on value clearing；When dilatation preparation value is more than second threshold, to network management or network controller publication dilatation advance notice.
Description
Technical field
The embodiment of the present invention is related to the dilatation forecasting methods and device of the communications field more particularly to a kind of network flow.
Background technique
The monitoring of network is from Simple Network Management Protocol (simple network management
Protocol, SNMP) be representative low frequency sampling monitor mode to the high-frequency for taking telemetering (telemetry) as representative
The monitor mode of sampling makes the transition.Traditional network monitoring mode is mostly that collector is obtained by the mode (pull mode) drawn
Monitoring data, data sampling frequency is relatively low, and sampling in general every 5 minutes is primary.Telemetry is a long-range slave physics
The technology of high speed acquisition data in equipment or virtual unit.Equipment is actively sent on collector by push-model (push mode)
Device data information provides the data acquisition function of more real-time higher speed.Skill is sampled by the high-frequency of representative of telemetry
Art can be realized the high-frequency sampling technique that 0.1 second, 1 second, 5 seconds, 10 seconds etc. is interval.Telemetry equipment includes acquisition
Device, analyzer, controller, wherein collector and analyzer are often fused in network controller or network manager.
The monitor mode that traditional network is sampled based on low frequencies such as SNMP, the rate of the every 5 minutes reporting links of equipment,
Average flow rate and peak flow including link.The dilatation of traditional network is predicted, and is more than based on 24 hours average flow rates of network
Certain threshold value or in 24 hours peak flow be more than certain threshold value.Since low frequency sampling can not completely embody link flow
Situation, the dilatation advance notice based on average flow rate superthreshold, has smoothed out many micro- burst phenomenons in network, therefore the stream of micro- burst
Amount superthreshold can not embody.Dilatation advance notice based on peak flow superthreshold, can obtain the maximum value of micro- burst, but network
Possible average flow rate is very low, fulfils dilatation ahead of schedule when network flow is lower, causes the waste of equipment performance and investment.?
After the technologies use such as telemetry, analyzer obtains a large amount of high frequency sampling performance data of link, is put down using traditional
Equal rate realizes that dilatation advance notice still brings and use the low frequencies such as SNMP more than the mode that threshold value or peak rate etc. are more than threshold value
The monitor mode of rate sampling realizes the same problem of dilatation advance notice, can not be realized and be refined by the mass data of high frequency sampling
Dilatation advance notice.
Summary of the invention
The embodiment of the present invention provides the dilatation forecasting methods and device of a kind of network flow, can pass through high frequency sampling
Mass data realize precision dilatation advance notice.
In a first aspect, providing the dilatation forecasting methods of network flow, include the following steps: monitoring device with predetermined sampling
Frequency samples network flow, obtains link data, wherein the link data includes sampling instant, link identification ID
And the link flow of the corresponding link of the link identification ID；The predetermined sampling frequency is greater than frequency threshold；The monitoring
The link flow of the corresponding link of any link identification ID is converted into the relative value of link flow by equipment, wherein described
The relative value of link flow=link identification ID corresponding link link flow/link bandwidth value；In predetermined amount of time
It is interior, if the relative value of the link flow of any sampling instant is greater than first threshold, by any link identification
The corresponding link of ID is recorded as accumulating value in the link flow of any sampling instant；The monitoring device is according to formulaThe accumulating value in the predetermined amount of time is converted to dilatation to prepare
Value, and the accumulating value is reset；Wherein, A indicates that the accumulating value, ep were indicated to the previous predetermined of the predetermined amount of time
The dilatation preparation value that period is calculated, EP indicate the corresponding dilatation preparation value of the predetermined amount of time, and n indicates institute
State the transformation ratio that accumulating value A is converted into dilatation preparation value EP；When the dilatation preparation value is more than second threshold, to network management
Or network controller publication dilatation advance notice, wherein the dilatation advance notice includes the advance notice time, the link identification ID of advance notice, dilatation
Preparation value, advance notice dilatation state, after the advance notice time is the last moment or last moment of the predetermined amount of time
Any moment.
It, will since the predetermined sampling frequency greater than frequency threshold can be used to sample network flow in above scheme
The link flow of the corresponding link of any link identification ID is converted into the relative value of link flow；Within a predetermined period of time, if it is any
The relative value of the link flow of sampling instant is greater than first threshold, then by the corresponding link of any link identification ID in any sampling
The link flow at moment is recorded as accumulating value；Monitoring device is according to formulaIt will
Accumulating value in predetermined amount of time is converted to dilatation preparation value, and will build up on value clearing；When dilatation preparation value is more than the second threshold
When value, to network management or network controller publication dilatation advance notice.It can be handled in the case where network configuration high-frequency sampling mechanism
A large amount of sampled datas, and have response to the network flow of smooth and micro- burst by the treatment mechanism of two threshold values.And by
The a large amount of sampled data of the whole network is transformed into the conversion of accumulating value and dilatation preparation value and has marginal dilatation decision number
According to, high-frequency sampling network in automatically generate dilatation prompt, reduce cost of labor, effectively increase dilatation time point
Accuracy, and improve in the case where not influencing user experience the instream factor of network link, save network
The investment of dilatation.
Second aspect provides a kind of dilatation distant warning device of network flow, comprising: sampling module, for predetermined sampling frequency
Rate samples network flow, obtain link data, wherein the link data include sampling instant, link identification ID and
The link flow of the corresponding link of the link identification ID；The predetermined sampling frequency is greater than frequency threshold；Conversion module is used for
The link flow for the corresponding link of any link identification ID that the sampling module samples is converted into link flow
Relative value, wherein the relative value of the link flow=link identification ID corresponding link link flow/link bandwidth
Value；Logging modle is used within a predetermined period of time, if the institute that any sampling instant is converted to by the conversion module
The relative value for stating link flow is greater than first threshold, then by the corresponding link of any link identification ID in any sampling
The link flow at moment is recorded as accumulating value；Computing module, for according to formulaIt will
The accumulating value of logging modle record in the predetermined amount of time is converted to dilatation preparation value, and by the accumulation
Value is reset；Wherein, A indicates the accumulating value, and the previous predetermined amount of time of the predetermined amount of time is calculated in ep expression
Dilatation preparation value, EP indicate the corresponding dilatation preparation value of the predetermined amount of time, and n indicates that the accumulating value A is converted into expansion
Hold the transformation ratio of preparation value EP；Sending module, the dilatation preparation value for being calculated when the computing module are more than
When second threshold, to network management or network controller publication dilatation advance notice, wherein it includes the advance notice time that the dilatation, which is predicted, pre-
The link identification ID of announcement, dilatation preparation value, advance notice dilatation state, the advance notice time be the predetermined amount of time it is last when
Any moment after quarter or last moment.
The third aspect, provides a kind of dilatation distant warning device of network flow, including communication interface, processor, memory,
Bus；Memory is for storing computer executed instructions, and processor is connect with memory by bus, when the expansion of network flow
When holding distant warning device operation, processor executes the computer executed instructions of memory storage, so that the dilatation of network flow is predicted
Device executes the dilatation forecasting methods such as above-mentioned network flow.
Fourth aspect, provides a kind of computer storage medium, including instruction, which is characterized in that when instruction on computers
When operation, so that computer executes the dilatation forecasting methods such as above-mentioned network flow.
5th aspect, provides a kind of computer program product, computer program product includes instruction code, instruction code
For executing the dilatation forecasting methods such as above-mentioned network flow.
It is to be appreciated that dilatation distant warning device, computer storage medium or the meter of any network flow of above-mentioned offer
Calculation machine program product is used to execute the corresponding method of first aspect presented above, and therefore, institute is attainable beneficial to effect
Fruit can refer to the beneficial effect of corresponding scheme in the method and following detailed description of first aspect above, herein not
It repeats again.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some
Embodiment for those of ordinary skill in the art without creative efforts, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is a kind of full mesh topology message structure schematic diagram that the embodiment of the present invention provides；
Fig. 2 is a kind of dilatation forecasting methods schematic diagram for network flow that the embodiment of the present invention provides；
Fig. 3 is a kind of dilatation forecasting methods schematic diagram for network flow that another embodiment of the present invention provides；
Fig. 4 is a kind of dilatation distant warning device schematic diagram for network flow that the embodiment of the present invention provides；
Fig. 5 is a kind of dilatation distant warning device schematic diagram for network flow that another embodiment of the present invention provides.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
The dilatation of traditional network is predicted, based on 24 hours average flow rates of network more than certain threshold value or in 24 hours
Peak flow is more than certain threshold value.Since low frequency sampling can not completely embody link flow situation, it is based on average flow rate superthreshold
The dilatation of value is predicted, and has smoothed out many micro- burst phenomenons in network, therefore the flow superthreshold of micro- burst can not embody.It is based on
The dilatation of peak flow superthreshold is predicted, and the maximum value of micro- burst can be obtained, but the possible average flow rate of network is very low, in net
Network flow fulfils dilatation ahead of schedule when lower, causes the waste of equipment performance and investment.
To solve the problem above-mentioned, embodiments herein provides a kind of dilatation forecasting methods of network flow, this method
Applied to the network architecture as shown in Figure 1, wherein includes multilink, node and node in network by link connection, such as scheme
The network architecture shown in 1, including node 101, node 102 and link 111, link 112, link 113, link 111 and link
It is connected between 112 by node 101, is connected between link 112 and link 113 by node 102；Wherein, node can be
Various forms of network element devices, such as: gateway, routing, interchanger etc..In the scheme for implementing embodiments herein offer
When, need to be obtained the topology information of the whole network from network controller or network management by monitoring device, the topology information of the whole network includes
Whole nodal informations and whole link informations in network.Wherein nodal information includes each node ID, for example, node 101
Node ID 1011, the node ID 1021 of node 102；The whole link identification ID being connected with each node, for example, with section
Put the link identification ID1111 of 101 connected links 111, the link identification ID1121 for the link 112 being connected with node 101.Chain
Road information includes link identification ID, for example, link identification ID1121, the chain of the link identification ID1111 of link 111, link 112
The link identification ID1131 on road 113；The whole node IDs being connected with link, for example, the node 101 being connected with link 112
The node ID 1021 of node ID 1011, the node 102 being connected with link 112.Secondly, monitoring device from network controller or
The link bandwidth data of the whole network, the bandwidth value including link are obtained in network management.
Based on the above-mentioned full mesh topology information got, the application provides a kind of dilatation forecasting methods of network flow, ginseng
According to shown in Fig. 2, specifically comprise the following steps:
201, monitoring device samples network flow with predetermined sampling frequency, obtains link data.
The sampled data holding time is arranged in monitoring device itself, for example, 1 hour, 1 day, 1 week, 1 month etc..Store the whole network
The link data that link flow sampling obtains, and link data is saved according to the sampled data holding time of setting；More than sampling
The link data file of data retention over time will be removed.
Link data includes the link flow of sampling instant, link identification ID and the corresponding link of link identification ID, in advance
Sample frequency is determined greater than frequency threshold.For example, monitoring device carries out high frequency sampling by telemetry technology, obtains high frequency and adopt
Sample data.At the time of wherein sampling instant refers to that sampling occurs, for high frequency sampling sampled data, the interval of sampling instant
It can be 0.1 second, 1 second, 10 seconds etc.；Sample frequency is bigger, and the data volume for needing to store is bigger.Link identification ID is in system
For the number of link setting；The link flow of the corresponding link of link identification ID is sampling instant link in the stream that this side up
Amount.The link data of preservation further includes { link A end node, link Z end node }, and link A end node and link Z end segment are true
The direction for determining flow in link is provided with different link identification ID if it is both direction in link, may not need storage
The A end node and Z end node of link.
For example, monitoring device is sampled by telemetry technology with 1 rate per second, and hits is set
According to holding time be 1 week, the data file more than the sampled data holding time will be removed.The link data then saved can
To include following information:
{ 2018-10-30 11:28:55, aaa-bbb, node A, node B, 5.1Gbps }, wherein 2018-10-30
At the time of 11:28:55 is that sampling occurs, aaa-bbb is link identification ID；Node A is link A end node, and node B is chain
Road Z end node, 5.1Gbps are link aaa-bbb in the sampling instant (2018-10-30 on from A node to B node direction
Data on flows 11:28:55).
202, the link flow of the corresponding link of any link identification ID is converted into the relative value of link flow.
Wherein, the relative value of link flow=link identification ID corresponding link link flow/link bandwidth value.
For example, the link that the link identification ID in step 201 is aaa-bbb, it is assumed that its bandwidth is 10Gb, then the link
Link flow relative value=link identification ID corresponding link link flow/link bandwidth value=5.1/10=
0.51。
It 203, will within a predetermined period of time, if the relative value of the link flow of any sampling instant is greater than first threshold
The corresponding link of any link identification ID is recorded as accumulating value in the link flow of any sampling instant.
First threshold is the absolute threshold or relative threshold of the corresponding link bandwidth of link identification ID；Link bandwidth
Relative threshold bandwidth/link the bandwidth value for relative threshold=be manually specified, the absolute threshold of link bandwidth=be manually specified
Absolute threshold bandwidth/link bandwidth value, c=1.The relative threshold bandwidth and absolute threshold bandwidth being manually specified are respectively less than chain
The bandwidth value on road, the i.e. relative threshold of link bandwidth and the absolute threshold of link bandwidth are respectively less than 1, in general relative threshold
Less than absolute threshold.For example, the link that the link identification ID in step 201 is aaa-bbb, it is assumed that its bandwidth is 10Gb, people
The specified relative threshold bandwidth of work is 7Gb, and the absolute threshold bandwidth being manually specified is 9Gb, then first threshold is link bandwidth
When relative threshold, the relative threshold bandwidth/link bandwidth value=7/10=for the relative threshold of link bandwidth=be manually specified
0.7=70%；Alternatively, when first threshold is the absolute threshold of link bandwidth, the absolute threshold of link bandwidth=be manually specified
Absolute threshold bandwidth/link bandwidth value=9/10=0.9=90%.The relative threshold and absolute threshold of link bandwidth can be with
It is arranged by hand one by one for each of the links, i.e., the relative threshold of the whole network difference link and absolute threshold can be different；In addition to this,
It may be whole link settings of the whole network unified relative threshold and absolute threshold, for example, whole links for the whole network are set
Set unified relative threshold 70% and absolute threshold 90%.
When first threshold is the relative threshold of link bandwidth, monitoring device is by the relative value 0.51 of link flow and this chain
The relative threshold 0.7 of road bandwidth compares, and the relative value 0.51 of the link flow of this link this moment is less than or equal to link bandwidth
Relative threshold 0.7；Or first threshold, when being the absolute threshold of link bandwidth, monitoring device is by the relative value of link flow
0.51 compared with the absolute threshold 0.9 of this link bandwidth, and the relative value 0.51 of the link flow of this link this moment is less than link
The relative threshold 0.7 of bandwidth, then be not further analyzed processing to link flow.If the sampling flow of this link is opposite
When value is greater than the first threshold of link, then starts subsequent sampled-data processing mechanism and handled.
To certain link in network, when the relative value of the link flow of any sampling instant is greater than first threshold, to appointing
The link flow relative value of one sampling instant is handled as follows:
If sampling instant is t, the link flow magnitude of S (t) link t moment thus, if this link is in any sampling instant
Accumulating value is A, and the initial value of A is 0, and current time accumulating value is a, and (t (0) arrives t (ti), for example, referring within a predetermined period of time
Fix time 20:00:00 to 21:00:00 or one day Duan Weiyi hours 0:00:00 to 24:00:00), A value are as follows:
Here k (t) is the number changed as time t changes, it is assumed that the first threshold of link is T, then k (t) takes
Value are as follows:
That is, as S (t)≤T, i.e., the link flow of any sampling instant it is opposite
When value≤first threshold, k (t)=0, A are constant.As S (t) > T, i.e., the relative value of the link flow of any sampling instant >
When first threshold, k (t)=1, A=a+S (t).
For example, first threshold is the absolute threshold of link bandwidth, it is assumed that certain link bandwidth is 10Gb, absolute threshold AT
It is 0.9, as follows in certain sampling instant link data:
{2018-10-31 19:55:17；Aaa-ddd, node A, node D, 9.5Gbps }, the phase of link flow at this time
It is 9.5/10=0.95 to value, 0.95 > 0.9, starting is more than the sampled-data processing mechanism of absolute threshold, and sampling instant t is
2018-10-3119:55:17, link flow magnitude S (t)=0.95 of this link t moment, the link flow relative value of this link
It is small that the accumulating value A obtained greater than first threshold is set as predetermined period t (0) is that 19:00:00 to t (ti) is 20:00:00 1
When in link link flow, A initial value be 0, current time a value be 7.32.
Then according to formula
A=7.32+l*0.95=8.27 can be obtained.
204, according to formulaBy the accumulating value conversion in predetermined amount of time
For dilatation preparation value, and it will build up on value clearing.
Wherein, A indicates the accumulating value, and the previous predetermined amount of time of the predetermined amount of time is calculated in ep expression
Dilatation preparation value, EP indicates the corresponding dilatation preparation value of the predetermined amount of time, and n indicates that the accumulating value A is converted into
The transformation ratio (can be a constant) of dilatation preparation value EP.
If the dilatation preparation value of certain link is EP, EP is initialized as 0, to the accumulating value A obtained greater than first threshold, often
In one unit statistical time, t (0) arrives t (ti), (for example, 20:00:00 to 21:00:00 or one day one hour 0:00:00
The A value accumulated to 24:00:00), (for example, 21:00:00 or one day in a hour after this predetermined amount of time
In 24:00:00), need will be greater than the accumulating value A that first threshold obtains and be converted to dilatation preparation value EP, and will build up on value A
It resets.Have: when t=t (ti) moment, calculating dilatation preparation valueC=1,
And it will build up on value A zero setting.Here n is the coefficient that accumulating value A is converted into dilatation preparation value EP, can be a constant.
For example, the dilatation preparation value EP for setting certain link is initialized as 0, current time dilatation preparation value ep is 353.27, product
Tired value is A, and in each predetermined amount of time (t (0) arrives t (ti), it is assumed that and one hour, the A that 19:00:00 to 20:00:00 is accumulated
Value, after this unit section (for example, 20:00:00), needs will build up on value A and is converted to dilatation preparation value EP, and will accumulate
Tired value A is reset.Have:
C=1, n is the accumulating value A conversion more than first threshold here
For the coefficient of dilatation preparation value EP, a constant can be.It is assumed here that n=0.2, when arriving 20:00:00, A=50.25,
Then EP=353.27+0.2* (1*50.25)=353.27+10.05=363.32.
It is to be noted that the value of EP will not be reset after initialization, only can constantly add up.The value of A is in a unit
At the end of statistical time, it is converted to after EP by certain setting and is reset again.
205, when dilatation preparation value is more than second threshold, to network management or network controller publication dilatation advance notice.
Wherein, dilatation advance notice includes advance notice time, the link identification ID of advance notice, dilatation preparation value, advance notice dilatation state；
The last moment or any moment after the last moment that the time is the predetermined amount of time are predicted, for example, predetermined amount of time
Any moment in two minutes afterwards.
Monitoring device inspects periodically the dilatation preparation value of all links, when find certain link dilatation preparation value EP be more than
When preset second threshold, then monitoring device issues dilatation advance notice to network management or controller by signaling, predicts certain link
Dilatation preparation value transfinited, need dilatation as early as possible, the message of advance notice includes: that { the advance notice time predicts link identification ID, dilatation
Preparation value (optional) predicts dilatation state }.
For example, it is assumed that checking the dilatation preparation value EP of all links per hour, it is assumed that second threshold is 2000, EP
371.59 are updated to from 353.27 after this hour, but still is less than 2000, then this link is predicted without dilatation and issued.
When being updated to 2003.24 from 1995.39 after analyzer finds that certain link EP is when this is small, then analyzer passes through signaling
It has transfinited to network management or controller publication dilatation advance notice, the dilatation preparation value for predicting this link, has needed dilatation as early as possible, advance notice
Message includes: { the advance notice time predicts link identification ID, and dilatation preparation value (optional) predicts dilatation state }, such as { 2018-
10-31 20:01:00, ccc-ddd, 2003.24 prepare dilatation }.
When network management or controller receive the advance notice of analyzer, network O&M personnel are notified in a manner of alarm or message
Link prepares dilatation.
When network management or controller are integrated with the function of monitoring device, when itself also serves as monitoring device, then network management or controller
Directly network O&M personnel link is notified to prepare dilatation in a manner of alarm or message.
It, will since the predetermined sampling frequency greater than frequency threshold can be used to sample network flow in above scheme
The link flow of the corresponding link of any link identification ID is converted into the relative value of link flow；Within a predetermined period of time, if it is any
The relative value of the link flow of sampling instant is greater than first threshold, then by the corresponding link of any link identification ID in any sampling
The link flow at moment is recorded as accumulating value；Monitoring device is according to formulaIt will
Accumulating value in predetermined amount of time is converted to dilatation preparation value, and will build up on value clearing；When dilatation preparation value is more than the second threshold
When value, to network management or network controller publication dilatation advance notice.It can be handled in the case where network configuration high-frequency sampling mechanism
A large amount of sampled datas, and have response to the network flow of smooth and micro- burst by the treatment mechanism of two threshold values.And by
The a large amount of sampled data of the whole network is transformed into the conversion of accumulating value and dilatation preparation value and has marginal dilatation decision number
According to, high-frequency sampling network in automatically generate dilatation prompt, reduce cost of labor, effectively increase dilatation time point
Accuracy, and improve in the case where not influencing user experience the instream factor of network link, save network
The investment of dilatation.
When first threshold is the relative threshold of the corresponding link bandwidth of link identification ID, the application provides a kind of network
The dilatation forecasting methods of flow specifically comprise the following steps: referring to shown in Fig. 3
301, monitoring device samples network flow with predetermined sampling frequency, obtains link data.
Wherein, link data includes the link flow of sampling instant, link identification ID and the corresponding link of link identification ID
Amount；Predetermined sampling frequency is greater than frequency threshold.
302, the link flow of the corresponding link of any link identification ID is converted into the relative value of link flow.
Wherein, the relative value of link flow=link identification ID corresponding link link flow/link bandwidth value.
303, when determining that the relative value of link flow is greater than first threshold, and being less than third threshold value, then by link identification
The link flow of the corresponding link of ID is recorded as accumulating value.
Wherein first threshold is the relative threshold of the corresponding link bandwidth of link identification ID, the relative threshold of link bandwidth
=relative threshold bandwidth/link the bandwidth value being manually specified；Third threshold value is the exhausted of the corresponding link bandwidth of link identification ID
To threshold value, the absolute threshold bandwidth/link bandwidth value for the absolute threshold of link bandwidth=be manually specified.
The topology, link bandwidth data, the relative threshold of each link and absolute threshold of the whole network are maintained in monitoring device
In.
When relative threshold < link flow relative value≤link bandwidth absolute threshold of link bandwidth, starting is super
The sampled-data processing mechanism of relative threshold is crossed, for example, it is assumed that certain link bandwidth is 10Gb, relative threshold RT is 0.7, absolutely
It is 0.9 to threshold value A T, as follows in certain sampling instant link data:
{2018-10-31 19:26:34；Aaa-ccc, node A, node C, 7.5Gbps }, at this point, link flow
Relative value is 0.75,0.7 < 0.75 < 0.9, and starting is more than the sampled-data processing mechanism of relative threshold, and sampling instant t is
2018-10-31 19:26:34, link flow magnitude S (t)=0.75 of this link t moment, the link flow relative value of this link
It is small that the accumulating value A obtained greater than first threshold is set as predetermined period t (0) is that 19:00:00 to t (ti) is 20:00:00 1
When in link link flow, the initial value of A is 0, is 37.2 in current time A value a.
Then
A=a+1*S (t)=37.2+0.75=37.95 can be obtained.
304 according to formulaIt will make a reservation for
Accumulating value in period is converted to dilatation preparation value, and will build up on value clearing.
Wherein, Z indicates the 4th threshold value set to accumulating value A, and wherein the corresponding link bandwidth of link identification ID is opposite
The absolute threshold of the corresponding link bandwidth of threshold value < Z < link identification ID.
Since accumulating value A herein is the accumulating value more than relative threshold, relative to the accumulating value for being more than absolute threshold,
Influence to link dilatation is smaller, therefore the conversion to A to EP, can be used:
I.e. if it exceeds opposite threshold
The accumulating value A of value is less than preset 4th threshold value Z, i.e., is more than the accumulating value ratio of relative threshold within a certain unit time
It is smaller, although illustrating that link bandwidth some moment of occupancy have been more than relative threshold, link bandwidth occupancy situation in this time
It is not serious, then A is not added in EP, EP is constant；If it exceeds the accumulating value A of relative threshold is greater than the preset 4th
Threshold value Z, i.e., it is relatively more more than the accumulating value of relative threshold within a certain unit time, it (can be a certain normal more than the 4th threshold value
Number), illustrate that link bandwidth occupancy situation than more serious, is then added to A in EP, EP becomes larger.This mode can be to being more than
The link flow of relative threshold is tolerated, in not traffic affecting, the notification time of dilatation is delayed, thus maximum
Change and utilize the existing network equipment, reduces network capacity extension investment.
For example, the dilatation preparation value EP for setting certain link is initialized as 0, current time dilatation preparation value ep is 353.27, right
More than the accumulating value A of first threshold, (t (0) arrives t (ti), it is assumed that one hour, 19:00:00 was arrived in each predetermined amount of time
The A value of 20:00:00 accumulation, after this unit section (for example, 20:00:00), needing will be more than the accumulation of first threshold
Value A is converted to dilatation preparation value EP, and the accumulating value A clearing that will be more than first threshold.Have:
I.e. if it exceeds opposite threshold
The accumulating value A of value is less than preset 4th threshold value Z, then A is not added in EP, EP is constant, it is assumed that Z=100.Here n
It is the coefficient for being converted into dilatation preparation value EP more than the accumulating value A of first threshold, can be a constant, it is assumed herein that n=
0.2.When to 20:00:00, A=50.25 < 100, then P=0, at this time EP=ep+0.2* (0*50.25)=P+0=353.27,
Although illustrating that A is greater than 0 at this time, go beyond the time limit in one hour not serious, so, the A value of this hour can't be added to
In EP.
305, when dilatation preparation value is more than second threshold, to network management or network controller publication dilatation advance notice
Wherein, dilatation advance notice includes advance notice time, the link identification ID of advance notice, dilatation preparation value, advance notice dilatation state；
The last moment or any moment after the last moment that the time is the predetermined amount of time are predicted, for example, predetermined amount of time
Any moment in two minutes afterwards.
When network management or controller receive the advance notice of analyzer, network O&M personnel are notified in a manner of alarm or message
Link prepares dilatation.
When network management or controller are integrated with the function of monitoring device, when itself also serves as monitoring device, then network management or controller
Directly network O&M personnel link is notified to prepare dilatation in a manner of alarm or message.
Referring to shown in Fig. 4, a kind of dilatation distant warning device of network flow is provided, comprising:
Sampling module 42 obtains link data, wherein institute for sampling with predetermined sampling frequency to network flow
State the link flow that link data includes sampling instant, link identification ID and the corresponding link of the link identification ID；It is described
Predetermined sampling frequency is greater than frequency threshold.
Conversion module 43, the corresponding chain of any link identification ID for obtaining the sampling module 42 sampling
The link flow on road is converted into the relative value of link flow, wherein the relative value of the link flow=link identification ID is corresponding
Link link flow/link bandwidth value.
Logging modle 44 is used within a predetermined period of time, if any sampling instant passes through 43 turns of the conversion module
The relative value for the link flow got in return is greater than first threshold, then the corresponding link of any link identification ID exists
The link flow of any sampling instant is recorded as accumulating value.
Computing module 45, for according to formulaBy the predetermined time
The accumulating value that the logging modle 44 in section records is converted to dilatation preparation value, and the accumulating value is reset；Its
In, A indicates that the accumulating value, ep indicate that the dilatation that the previous predetermined amount of time of the predetermined amount of time is calculated prepares
Value, EP indicate the corresponding dilatation preparation value of the predetermined amount of time, and n indicates that the accumulating value A is converted into dilatation preparation value
The transformation ratio of EP；
Sending module 46, the dilatation preparation value for being calculated when the computing module 45 are more than second threshold
When, to network management or network controller publication dilatation advance notice, wherein the chain road sign of the dilatation advance notice comprising advance notice time, advance notice
Know ID, dilatation preparation value, advance notice dilatation state, the advance notice time is the last moment or last of the predetermined amount of time
Any moment after moment.
Optionally, the first threshold is the absolute threshold or opposite of the corresponding link bandwidth of the link identification ID
Threshold value；The wherein relative threshold bandwidth/link bandwidth value for the relative threshold of the link bandwidth=be manually specified, the chain
Absolute threshold bandwidth/link the bandwidth value for the absolute threshold of road bandwidth=be manually specified, c=1.
Optionally, the first threshold is the relative threshold of the corresponding link bandwidth of the link identification ID, the link
Relative threshold bandwidth/link the bandwidth value for the relative threshold of bandwidth=be manually specified；Then, in the predetermined amount of time, if
The relative value of the link flow of any sampling instant is greater than first threshold, then by any ID pairs of link identification
The link answered is recorded as accumulating value in the link flow of any sampling instant, comprising: and the logging modle 44 is specific to use
In determine the link flow relative value be greater than the first threshold, and be less than third threshold value when, then by the link
The link flow of the corresponding link of mark ID is recorded as accumulating value；Wherein the third threshold value is corresponding for the link identification ID
Link bandwidth absolute threshold, the absolute threshold bandwidth/link band for the absolute threshold of the link bandwidth=be manually specified
Width values；Z indicates the 4th threshold value set to the accumulating value A, wherein the link identification ID
The absolute threshold of the corresponding link bandwidth of link identification ID described in the relative threshold < Z < of corresponding link bandwidth.
Optionally, further includes: module 41 is obtained, for obtaining the topology information of the whole network in network controller or network management
With link bandwidth data, wherein the topology information includes link identification ID, and the link bandwidth data include link identification
The bandwidth value of the corresponding link of ID.
Using integrated module, the dilatation distant warning device of network flow includes: storage unit, processing list
Member and interface unit.Processing unit is used to carry out control management to the movement of the dilatation distant warning device of network flow, for example,
Processing unit is for supporting the dilatation distant warning device of network flow to execute the process 301- in process 201-204, Fig. 3 in Fig. 2
304.Interface unit, for support network flow dilatation distant warning device and other equipment information exchange execute 205 in Fig. 2,
305 in 3.Storage unit, the program code and data of the dilatation distant warning device for storing network flow.
Wherein, using processing unit as processor, storage unit is memory, and interface unit is for communication interface.Its
In, the dilatation distant warning device of network flow referring to fig. 5, including communication interface 51, processor 52, memory 53 and total
Line 54, communication interface 51, processor 52 are connected by bus 54 with memory 53.
Processor 52 can be a general central processor (Central Processing Unit, CPU), micro process
Device, application-specific integrated circuit (Application-Specific Integrated Circuit, ASIC) or one or more
A integrated circuit executed for controlling application scheme program.
Memory 53 can be read-only memory (Read-Only Memory, ROM) or can store static information and instruction
Other kinds of static storage device, random access memory (Random Access Memory, RAM) or letter can be stored
The other kinds of dynamic memory of breath and instruction, is also possible to Electrically Erasable Programmable Read-Only Memory (Electrically
Erasable Programmable Read-only Memory, EEPROM), CD-ROM (Compact Disc Read-
Only Memory, CD-ROM) or other optical disc storages, optical disc storage (including compression optical disc, laser disc, optical disc, digital universal
Optical disc, Blu-ray Disc etc.), magnetic disk storage medium or other magnetic storage apparatus or can be used in carrying or store to have referring to
Enable or data structure form desired program code and can by any other medium of computer access, but not limited to this.
Memory, which can be, to be individually present, and is connected by bus with processor.Memory can also be integrated with processor.
Wherein, memory 53 is used to store the application code for executing application scheme, and is controlled by processor 52
It executes.Communication interface 51 be used for other equipment carry out information exchange, such as support network flow dilatation distant warning device and its
The information exchange of his equipment, such as obtain data from other equipment or send data to other equipment.Processor 52 is for holding
The application code stored in line storage 53, to realize method described in the embodiment of the present application.
In addition, a kind of calculating storage media (or medium) is also provided, including carrying out in above-described embodiment when executed
The instruction for the method operation that the dilatation distant warning device of network flow executes.In addition, also providing a kind of computer program product, wrap
Include above-mentioned calculating storage media (or medium).
Wherein, all related contents for each step that above method embodiment is related to can quote corresponding function mould
The function of block describes, and details are not described herein for effect.
It should be understood that in various embodiments of the present invention, magnitude of the sequence numbers of the above procedures are not meant to execute suitable
Sequence it is successive, the execution of each process sequence should be determined by its function and internal logic, the implementation without coping with the embodiment of the present invention
Process constitutes any restriction.
Those of ordinary skill in the art may be aware that described in conjunction with the examples disclosed in the embodiments of the present disclosure
Unit and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions
It is implemented in hardware or software actually, the specific application and design constraint depending on technical solution.Professional technique
Personnel can use different methods to achieve the described function each specific application, but this realization should not be recognized
It is beyond the scope of this invention.
It is apparent to those skilled in the art that for convenience and simplicity of description, foregoing description is
The specific work process of system, device and unit, can refer to corresponding processes in the foregoing method embodiment, details are not described herein.
In several embodiments provided herein, it should be understood that disclosed system, apparatus and method, it can be with
It realizes by another way.For example, apparatus embodiments described above are merely indicative, for example, the unit
It divides, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or group
Part can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point is shown
The mutual coupling, direct-coupling or communication connection shown or discussed can be through some interfaces, equipment or unit
Indirect coupling or communication connection can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, as unit
The component of display may or may not be physical unit, it can and it is in one place, or may be distributed over more
In a network unit.Some or all of unit therein can be selected to realize this embodiment scheme according to the actual needs
Purpose.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.
It, can if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
To be stored in a computer readable storage medium.Based on this understanding, technical solution of the present invention substantially or
Say that the part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products,
The computer software product is stored in a storage medium, including some instructions are used so that a computer equipment (can
To be personal computer, server or the network equipment etc.) execute the whole or portion of each embodiment the method for the present invention
Step by step.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (full name in English: read-only
Memory, English abbreviation: ROM), random access memory (full name in English: random access memory, English abbreviation:
RAM), the various media that can store program code such as magnetic or disk.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, appoints
What those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, answer
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be with the scope of protection of the claims
It is quasi-.
Claims (11)
1. a kind of dilatation forecasting methods of network flow, which is characterized in that
Monitoring device samples network flow with predetermined sampling frequency, obtains link data, wherein the link data packet
Link flow containing sampling instant, link identification ID and the corresponding link of the link identification ID；The predetermined sampling frequency
Greater than frequency threshold；
The link flow of the corresponding link of any link identification ID is converted into the opposite of link flow by the monitoring device
Value, wherein the relative value of the link flow=link identification ID corresponding link link flow/link bandwidth value；
It within a predetermined period of time, will if the relative value of the link flow of any sampling instant is greater than first threshold
The corresponding link of any link identification ID is recorded as accumulating value in the link flow of any sampling instant；
The monitoring device is according to formulaDescribed in the predetermined amount of time
Accumulating value is converted to dilatation preparation value, and the accumulating value is reset；Wherein, A indicates that the accumulating value, ep are indicated to described pre-
The dilatation preparation value that the previous predetermined amount of time for section of fixing time is calculated, EP indicate the corresponding expansion of the predetermined amount of time
Hold preparation value, n indicates that the accumulating value A is converted into the transformation ratio of dilatation preparation value EP；
When the dilatation preparation value is more than second threshold, to network management or network controller publication dilatation advance notice, wherein the expansion
Hold advance notice and include advance notice time, the link identification ID of advance notice, dilatation preparation value, advance notice dilatation state, the advance notice time is institute
The last moment for stating predetermined amount of time or any moment after the last moment.
2. the dilatation forecasting methods of network flow according to claim 1, which is characterized in that the first threshold is described
The absolute threshold or relative threshold of the corresponding link bandwidth of link identification ID；
The wherein relative threshold bandwidth/link bandwidth value for the relative threshold of the link bandwidth=be manually specified, the link
Absolute threshold bandwidth/link the bandwidth value for the absolute threshold of bandwidth=be manually specified, c=1.
3. the dilatation forecasting methods of network flow according to claim 1, which is characterized in that the first threshold is described
The relative threshold of the corresponding link bandwidth of link identification ID, the relative threshold for the relative threshold of the link bandwidth=be manually specified
Bandwidth/link bandwidth value；Then, in the predetermined amount of time, if the phase of the link flow of any sampling instant
First threshold is greater than to value, then by the corresponding link of any link identification ID any sampling instant link flow
It is recorded as accumulating value, comprising:
The monitoring device determine the link flow relative value be greater than the first threshold, and be less than third threshold value when,
The link flow of the corresponding link of the link identification ID is then recorded as accumulating value；Wherein the third threshold value is the link
Identify the absolute threshold of the corresponding link bandwidth of ID, the absolute threshold band for the absolute threshold of the link bandwidth=be manually specified
Width/link bandwidth value；
Z indicates the 4th threshold value set to the accumulating value A, wherein ID pairs of the link identification
The absolute threshold of the corresponding link bandwidth of link identification ID described in the relative threshold < Z < for the link bandwidth answered.
4. the dilatation forecasting methods of network flow according to claim 1-3, which is characterized in that in monitoring device
Network flow is sampled with predetermined sampling frequency, before acquisition link data, further includes:
The monitoring device obtains the topology information and link bandwidth data of the whole network in network controller or network management, wherein institute
Stating topology information includes link identification ID, and the link bandwidth data include the bandwidth value of the corresponding link of link identification ID.
5. a kind of dilatation distant warning device of network flow, which is characterized in that
Sampling module obtains link data, wherein the link for sampling with predetermined sampling frequency to network flow
Data include the link flow of sampling instant, link identification ID and the corresponding link of the link identification ID；It is described to make a reservation for adopt
Sample frequency is greater than frequency threshold；
Conversion module, the link flow of the corresponding link of any link identification ID for sampling the sampling module
Amount is converted into the relative value of link flow, wherein the relative value of the link flow=link identification ID corresponding link chain
Road flow/link bandwidth value；
Logging modle is used within a predetermined period of time, if what any sampling instant was converted to by the conversion module
The relative value of the link flow is greater than first threshold, then described adopts the corresponding link of any link identification ID any
The link flow at sample moment is recorded as accumulating value；
Computing module, for according to formulaBy the institute in the predetermined amount of time
The accumulating value for stating logging modle record is converted to dilatation preparation value, and the accumulating value is reset；Wherein, described in A expression
Accumulating value, ep indicate dilatation preparation value that the previous predetermined amount of time of the predetermined amount of time is calculated, described in EP expression
The corresponding dilatation preparation value of predetermined amount of time, n indicate that the accumulating value A is converted into the transformation ratio of dilatation preparation value EP；
Sending module, when the dilatation preparation value for being calculated when the computing module is more than second threshold, to network management
Or network controller publication dilatation advance notice, wherein the dilatation advance notice includes the advance notice time, the link identification ID of advance notice, dilatation
Preparation value, advance notice dilatation state, after the advance notice time is the last moment or last moment of the predetermined amount of time
Any moment.
6. the dilatation distant warning device of network flow according to claim 5, which is characterized in that the first threshold is described
The absolute threshold or relative threshold of the corresponding link bandwidth of link identification ID；
The wherein relative threshold bandwidth/link bandwidth value for the relative threshold of the link bandwidth=be manually specified, the link
Absolute threshold bandwidth/link the bandwidth value for the absolute threshold of bandwidth=be manually specified, c=1.
7. the dilatation distant warning device of network flow according to claim 5, which is characterized in that the first threshold is described
The relative threshold of the corresponding link bandwidth of link identification ID, the relative threshold for the relative threshold of the link bandwidth=be manually specified
Bandwidth/link bandwidth value；Then, in the predetermined amount of time, if the phase of the link flow of any sampling instant
First threshold is greater than to value, then by the corresponding link of any link identification ID any sampling instant link flow
It is recorded as accumulating value, comprising:
The logging modle is greater than the first threshold specifically for the relative value of the determination link flow, and less than the
When three threshold values, then the link flow of the corresponding link of the link identification ID is recorded as accumulating value；The wherein third threshold value
For the absolute threshold of the corresponding link bandwidth of the link identification ID, the absolute threshold of the link bandwidth=be manually specified is exhausted
To threshold value bandwidth/link bandwidth value；
Z indicates the 4th threshold value set to the accumulating value A, wherein ID pairs of the link identification
The absolute threshold of the corresponding link bandwidth of link identification ID described in the relative threshold < Z < for the link bandwidth answered.
8. according to the dilatation distant warning device of the described in any item network flows of claim 5-7, which is characterized in that further include:
Module is obtained, for obtaining the topology information of the whole network and link bandwidth data in network controller or network management, wherein institute
Stating topology information includes link identification ID, and the link bandwidth data include the bandwidth value of the corresponding link of link identification ID.
9. a kind of dilatation distant warning device of network flow, which is characterized in that including communication interface, processor, memory, bus；
For storing computer executed instructions, the processor is connect with the memory by the bus memory, works as institute
When stating the dilatation distant warning device operation of network flow, the processor executes the computer executed instructions of the memory storage,
So that the dilatation distant warning device of the network flow executes the dilatation advance notice of network flow according to any one of claims 1-4
Method.
10. a kind of computer storage medium, including instruction, which is characterized in that when described instruction is run on computers, so that
The computer executes the dilatation forecasting methods of network flow according to any one of claims 1-4.
11. a kind of computer program product, which is characterized in that the computer program product includes instruction code, described instruction
Code is used to execute the dilatation forecasting methods of network flow according to any one of claims 1-4.
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