CN105703994B - Network performance evaluation method and system - Google Patents
Network performance evaluation method and system Download PDFInfo
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- CN105703994B CN105703994B CN201610281101.XA CN201610281101A CN105703994B CN 105703994 B CN105703994 B CN 105703994B CN 201610281101 A CN201610281101 A CN 201610281101A CN 105703994 B CN105703994 B CN 105703994B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/14—Network analysis or design
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/42—Loop networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0896—Bandwidth or capacity management, i.e. automatically increasing or decreasing capacities
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/12—Avoiding congestion; Recovering from congestion
- H04L47/125—Avoiding congestion; Recovering from congestion by balancing the load, e.g. traffic engineering
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Abstract
A kind of network performance evaluation optimization method and system, the method comprising the steps of: obtaining the bandwidth availability ratio of each ring inner link of current looped network；According to the bandwidth availability ratio of each ring inner link, bandwidth availability ratio mean value in the ring for deserving preceding looped network is determined；According to the bandwidth availability ratio of bandwidth availability ratio mean value, each ring inner link in the ring of the current looped network, balancing link load degree in ring is determined；According to the bandwidth availability ratio of each ring inner link, the maximum value of the bandwidth availability ratio of link in each ring is determined as link highest bandwidth availability ratio in ring；According to link highest bandwidth availability ratio in balancing link load degree in the ring, the ring, the network performance of current looped network is determined.The embodiment of the present invention assesses Network status using ring as basic unit, closer to practical application, realizes that the depth of network bandwidth resources is taped the latent power, and promotes network resource utilization.
Description
Technical field
The present invention relates to the communications fields, more particularly to a kind of network performance evaluation method and system.
Background technique
Current communication industry carries out planning for communication network and in application, based on safety grounds, generallys use " ring-like
Network " framework shows the configuration diagram of the ring network in an example in Fig. 1.In this ring network framework, such as
The primary path of fruit signal stream breaks down, and can be immediately switched to backup path.It is simple to understand, i.e., if the unilateral disconnection of ring,
Signal stream can walk the another unilateral of ring.For the same purpose considered with ring network structure, lower layer's ring docks upper layer ring using " double
The first line of a couplet ".Technology starting point based on use ring network structure if it case of heavy load occurs, can only pass through ring communications network
Domain dilatation solves, if only carrying out dilatation to the link that certain therein heavily loaded on ring, is no longer belong to " ring network structure ", can not
Realize the function of ring protection.
By taking PTN (Package Transport Network, Packet Transport Network) network as an example, PTN is current industry carrying
A kind of mainstream transmission technology of LTE (Long Term Evolution, Long Term Evolution) data service, however, PTN device
Only have the statistic multiplexing function of data packet, does not have automatic routing function.Therefore, because a plurality of signal stream configuration is not
, and the reasons such as changes in flow rate later are configured, will lead to the unbalanced situation of circulation and occurs.
Summary of the invention
Based on this, the embodiment of the present invention is designed to provide a kind of network performance evaluation optimization method and a kind of internetworking
Energy evaluation optimal sysytem, the depth that network bandwidth resources may be implemented are taped the latent power, and network resource utilization is promoted.
In order to achieve the above objectives, the embodiment of the present invention uses following technical scheme:
A kind of network performance evaluation optimization method, comprising steps of
Obtain the bandwidth availability ratio of each ring inner link of current looped network；
According to the bandwidth availability ratio of each ring inner link, bandwidth availability ratio mean value in the ring for deserving preceding looped network is determined；
According to the bandwidth availability ratio of bandwidth availability ratio mean value, each ring inner link in the ring of the current looped network, ring is determined
Interior balancing link load degree；
According to the bandwidth availability ratio of each ring inner link, the maximum value of the bandwidth availability ratio of each ring inner link is determined as
Link highest bandwidth availability ratio in ring；
According to link highest bandwidth availability ratio in balancing link load degree in the ring, the ring, current looped network is determined
Network performance.
A kind of network performance evaluation optimization system, comprising:
Inner link bandwidth availability ratio obtains module, the bandwidth usage of each ring inner link for obtaining current looped network
Rate；
Equilibrium degree determining module, for determining that inner link bandwidth availability ratio obtains each ring inner link that module obtains
Bandwidth availability ratio mean value in the ring of bandwidth availability ratio, inside bandwidth availability ratio mean value in the ring of the current looped network, each ring
The bandwidth availability ratio of link determines balancing link load degree in ring；
Highest load determining module, for the bandwidth availability ratio according to each ring inner link, by the band of each ring inner link
The maximum value of wide utilization rate is determined as link highest bandwidth availability ratio in ring；
Performance determining module, for according to link highest bandwidth usage in balancing link load degree in the ring, the ring
Rate determines the network performance of current looped network.
According to the scheme of embodiment present invention as described above, due to being substantially with domain dilatation in practical application
Main, this embodiment scheme assesses Network status using ring as basic unit, closer to practical application, from the angle of the network optimization
Degree can realize network bandwidth money to avoid due to blindness domain dilatation caused by single hop heavy duty by flow equalization in ring
The depth in source is taped the latent power, and network resource utilization is promoted.
Detailed description of the invention
Fig. 1 is the configuration diagram of the ring network in an example；
Fig. 2 is the flow diagram of the network performance evaluation optimization method in one embodiment；
Fig. 3 is the flow diagram of the network performance evaluation optimization method in another embodiment；
Fig. 4 is the flow diagram of the network performance evaluation optimization method in another embodiment；
Fig. 5 is the schematic diagram of the loop network link in a specific example；
Fig. 6 is the structural schematic diagram of the network performance evaluation optimization system in one embodiment；
Fig. 7 is the structural schematic diagram of the performance determining module in a specific example；
Fig. 8 is the principle configuration diagram in a concrete application example based on the present invention program.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention more comprehensible, with reference to the accompanying drawings and embodiments, to this
Invention is described in further detail.It should be appreciated that the specific embodiments described herein are only used to explain the present invention,
And the scope of protection of the present invention is not limited.
The flow diagram of the network performance evaluation optimization method in one embodiment is shown in Fig. 2, as shown in Fig. 2,
Method in the embodiment includes:
Step S21: the bandwidth availability ratio of each ring inner link of current looped network is obtained；
Step S22: according to the bandwidth availability ratio of each ring inner link, determine that bandwidth availability ratio is equal in the ring of looped network before deserving
Value；
Step S23: according to the bandwidth usage of bandwidth availability ratio mean value, each ring inner link in the ring of the current looped network
Rate determines balancing link load degree in ring；
Step S24: according to the bandwidth availability ratio of each ring inner link, by the maximum of the bandwidth availability ratio of each ring inner link
Value is determined as link highest bandwidth availability ratio in ring；
Step S25: according to link highest bandwidth availability ratio in balancing link load degree in the ring, the ring, determination is worked as
The network performance of preceding looped network.
It will be appreciated by persons skilled in the art that balancing link load in the determination ring of above-mentioned steps S22 to step S23
The process of link highest bandwidth availability ratio can be in no particular order sequentially in the process of degree and the determination ring of step S24, while into
Row, as long as can determine the network performance of current looped network based on the two parameters in step s 25.
According to the scheme of embodiment present invention as described above, due to being substantially with domain dilatation in practical application
Main, this embodiment scheme assesses Network status using ring as basic unit, closer to practical application, from the angle of the network optimization
Degree can realize network bandwidth money to avoid due to blindness domain dilatation caused by single hop heavy duty by flow equalization in ring
The depth in source is taped the latent power, and network resource utilization is promoted.
Wherein, it when determining the network performance of current looped network in above-mentioned steps S25, in a specific example, can adopt
It is carried out with following manner:
By balancing link load degree in the ring and default equilibrium degree threshold value comparison, determination is equal with link load in the ring
Link equalization rank in the corresponding ring of weighing apparatus degree；
By link highest bandwidth availability ratio in the ring compared with pre-set bandwidths utilization threshold, chain in the determining and ring
The corresponding highest bandwidth availability ratio rank of road highest bandwidth availability ratio；
According to link equalization rank, the pairing relationship of the highest bandwidth availability ratio rank in the ring, work as described in determination
The network performance of preceding looped network.
It is pointed out that the bandwidth availability ratio it will be understood by those skilled in the art that above-mentioned ring inner link, actually
It is the assembly average of (such as one day, one week or even one month) in a relatively long time, therefore, by " ring inner link
Bandwidth availability ratio " extend determining " balancing link load degree in ring " and " link highest bandwidth availability ratio in ring ", and
The assembly average of (such as one day, one week or even one month) in one relatively long time.
It is possible thereby to it is well established that above-mentioned according to link highest bandwidth availability ratio in balancing link load degree in ring, ring
When determining the network performance of current looped network, and according to the pairing pass of link equalization rank, highest bandwidth availability ratio rank in ring
It is substantially to assess in conjunction with the average value of long period network performance when system determines the network performance of current looped network,
The details of (such as every 15 minutes or even short time period per minute) is carved when to erase each shorter.Therefore, in order to more complete
Face network performance is assessed, needs to a certain extent to reflect the details at each moment.Accordingly, have at one
In body example, when determining the network performance of current looped network in step s 25, can be combined in the ring to current looped network link into
When row traffic sampling, acquired flow be more than that the number of threshold value integrates determination.The number can be for entire current looped network,
It is also possible to for each ring inner link in current looped network.
For determining busy degree for the ring inner link in current looped network, the net in the example is shown in Fig. 3
The flow diagram of network performance assessment optimization method, as shown in figure 3, the method in the example is relative to the method in above-mentioned Fig. 2
For, before above-mentioned steps S25, further comprise the steps of:
Step S2401: it obtains in preset time period and traffic sampling is carried out to each ring inner link in the current looped network
Total sampling number, and to each ring inner link carry out traffic sampling when, flow collected be more than the ring inner link
Flow Limit definite value super early warning value sampling number；
Step S2402: each ring internal chain is determined according to super early warning value sampling number, the total sampling number of each ring inner link
The busy degree on road, and link busy degree is determined according to the busy degree of each ring inner link.In a specific example, can be by
Maximum value in the busy degree of each ring inner link is determined as link busy degree.It will be understood by those skilled in the art that in determination
The busy degree of each ring inner link can also determine link busy degree using other modes are comprehensive.
It is according to link highest bandwidth in balancing link load degree in the ring, the ring at this point, in above-mentioned steps S25
Utilization rate, the link busy degree determine the network performance of current looped network.
Accordingly, in a specific example, in the network performance of the current looped network of determination, can using following manner into
Row:
By balancing link load degree in the ring and default equilibrium degree threshold value comparison, determination is equal with link load in the ring
Link equalization rank in the corresponding ring of weighing apparatus degree；
By link highest bandwidth availability ratio in the ring compared with pre-set bandwidths utilization threshold, chain in the determining and ring
The corresponding highest bandwidth availability ratio rank of road highest bandwidth availability ratio；
The link busy degree is compared with default link busy degree threshold value, determination is corresponding with the link busy degree
Link busy degree rank；
Then according to link equalization rank in the ring, the highest bandwidth availability ratio rank, link busy degree rank
Pairing relationship determines the network performance of the current looped network.
The network performance evaluation optimization in the example is shown for determining busy degree for current looped network, in Fig. 4
The flow diagram of method, as shown in figure 4, the method in the example is for the method in above-mentioned Fig. 2, in above-mentioned steps
Before S25, further comprise the steps of:
Step S2411: it obtains in preset time period and traffic sampling is carried out to each ring inner link in the current looped network
Total sampling number, and to each ring inner link carry out traffic sampling when, flow collected be more than the ring inner link
Flow Limit definite value super early warning value sampling number；
Step S2412: current looped network is determined according to super early warning value sampling number, the total sampling number of each ring inner link
Busy degree.
It is according to link highest bandwidth in balancing link load degree in the ring, the ring at this point, in above-mentioned steps S25
Utilization rate, the current looped network busy degree determine the network performance of current looped network.
Accordingly, in a specific example, in the network performance of the current looped network of determination, can using following manner into
Row:
By balancing link load degree in the ring and default equilibrium degree threshold value comparison, determination is equal with link load in the ring
Link equalization rank in the corresponding ring of weighing apparatus degree；
By link highest bandwidth availability ratio in the ring compared with pre-set bandwidths utilization threshold, chain in the determining and ring
The corresponding highest bandwidth availability ratio rank of road highest bandwidth availability ratio；
The busy degree of current looped network is compared with the busy degree threshold value of looped network, determination is corresponding with the busy degree of current looped network
The busy degree rank of looped network；
According to the pairing of the busy degree rank of link equalization rank, the highest bandwidth availability ratio rank, looped network in the ring
Relationship determines the network performance of the current looped network.
It will be understood by those skilled in the art that in above-mentioned each exemplary explanation, it within a preset period of time, can be to each link
It is sampled several times, this is the above-mentioned total sampling number referred to.And for wherein certain specific primary sampling, stream collected
The flow being necessarily confined in the sampling time section is measured, therefore, in essence, the flow sampled is practical to be contained
The meaning of " flow velocity ".
After the network performance of current looped network has been determined based on the mode in above-mentioned each example, it can worked as according to determining
The network performance of preceding looped network determines the network optimization mode to the current looped network corresponding with the network performance, and can adopt
It is optimized with the network optimization mode, to improve network performance.
The schematic diagram of the loop network link in a specific example is shown in Fig. 5, as shown in connection with fig. 5, for any one
For looped network, it is related to there are two types of link, a kind of ring inner link for inside the looped network, a kind of ring first line of a couplet chain for the first line of a couplet
Road.
In addition, might have lower layer's ring of looped network before access is deserved for each current looped network, as shown in connection with fig. 5,
For the looped network of backbone layer, the ring of multiple convergence layers is connected under meeting, and the ring of convergence layer can be connected to down the ring of multiple access layers.
It therefore, can also be further to each second line of a couplet ring of current looped network in the case where the second line of a couplet looped network connect in the presence of current looped network
Net is analyzed, further to assess network performance, especially in the case where the network performance of current looped network is bad,
It can further determine that out that specifically which second line of a couplet looped network goes wrong.
Accordingly, as shown in Figure 2, Figure 3, Figure 4, the method in the present embodiment can also include:
Step S26: obtaining each second line of a couplet looped network under the current looped network, and respectively using each second line of a couplet looped network as working as front ring
Then net returns to above-mentioned steps S21, reacquire the bandwidth availability ratio of each ring inner link of current looped network, carries out above-mentioned point
Analysis process.I.e. after obtaining each second line of a couplet looped network, above-mentioned analytic process can be repeated for each second line of a couplet looped network, so as to right accordingly
Each second line of a couplet looped network is assessed, convenient for determining specifically which second line of a couplet looped network goes wrong.
In addition, can also determine each ring first line of a couplet chain using aforesaid way for the ring upper level link of current looped network
The network performance on road is directed to each ring upper level link of current looped network, using above-mentioned to the same processing mode of link in ring, really
Determine the busy degree rank of ring upper level link equilibrium degree, ring upper level link highest bandwidth availability ratio, ring upper level link, it on the one hand can be with
After the network performance for determining ring upper level link according to ring upper level link equilibrium degree, ring upper level link highest bandwidth availability ratio, needing
Further the busy degree rank synthesis of coupling collar upper level link determines the network performance of ring upper level link in the case where wanting, another
Aspect be also possible to directly according to ring upper level link equilibrium degree, ring upper level link highest bandwidth availability ratio, ring upper level link it is numerous
The busy comprehensive network performance for determining ring upper level link of degree rank.
Since current each current looped network generally only has two ring upper level link, thus letter can be carried out on the basis of the above
Change.Accordingly, in another specific example, as shown in Figure 2, Figure 3, Figure 4, the method in the present embodiment can also include:
Step S201: the bandwidth availability ratio of each ring upper level link of current looped network is obtained；
Step S202: it is greater than preset difference value threshold value in the difference of the bandwidth availability ratio of each ring upper level link of current looped network
When, the flow of the high ring upper level link of bandwidth availability ratio is imported into the low ring upper level link of bandwidth availability ratio.
To since current looped network generally only has two ring upper level link, so as to directly utilize on this two rings
Join the difference of the bandwidth availability ratio of link, to determine their performance, and is higher than in the difference of the broadband utilization rate of the two and presets
When difference threshold, the flow of the high ring upper level link of bandwidth availability ratio is imported into the low ring upper level link of bandwidth availability ratio, with reality
The optimization of the performance of existing two ring upper level link.
It, can after the flow for the ring upper level link that bandwidth availability ratio is high imports the low ring upper level link of bandwidth availability ratio
The variation of flow of each ring inner link of current looped network etc. can be will lead to, therefore, in above-mentioned steps S202 by bandwidth availability ratio
The flow of high ring upper level link imports after the low ring upper level link of bandwidth availability ratio, can enter above-mentioned steps S21, again
The performance of the ring inner link of current looped network is evaluated and optimized.
Based on the method for embodiment present invention as described above, below in conjunction with the network performance evaluation in a specific example
The process of optimization is illustrated.For simplicity of illustration, it is in the following description assessment only for current looped network
It is illustrated with optimization, can join for each ring upper level link of current looped network, the network performance evaluation of second line of a couplet looped network and optimization
The mode examined in the embodiment carries out.
For the scheme of the embodiment of the present invention, when the network performance to current looped network is assessed, obtain first current
The bandwidth availability ratio of each ring inner link of looped network, bandwidth availability ratio be characterization network bandwidth it is occupied how much and network congestion
A parameter, the embodiment of the present invention can extract directly from the data monitored in real time in network monitoring system, can also
To be directly to carry out test to network to obtain above-mentioned bandwidth availability ratio, it is not limited in the embodiment of the present invention.Art technology
Personnel are appreciated that bandwidth availability ratio described herein is actually (such as one day, a Zhou Naizhi in a relatively long time
One month) assembly average.
Then, according to the bandwidth availability ratio of each ring inner link, bandwidth availability ratio mean value in the ring for deserving preceding looped network is determined.
In a specific example, it is assumed that current looped network has k ring inner link, the bandwidth benefit of i-th ring inner link
It is x with ratei, then bandwidth availability ratio mean value can indicate in ring are as follows:
Wherein,Indicate bandwidth availability ratio mean value in ring.
It is mean value directly to seek the bandwidth availability ratio of each ring inner link in above-mentioned example as bandwidth usage in ring
It is illustrated for rate mean value, it, can also be by the bandwidth availability ratio of each ring inner link in other application environment
Weighted mean as bandwidth availability ratio mean value in ring, for example, can use following formula determine:
Wherein,Indicate bandwidth availability ratio mean value in ring, xiIndicate the bandwidth availability ratio of i-th ring inner link, aiIt indicates
The bandwidth availability ratio x of i-th ring inner linkiWeighting coefficient, a1+a2+...+ak=1.Wherein, weighting coefficient aiIt can combine
The various factors such as position, the importance of the ring inner link determine.
It then, can be according to bandwidth availability ratio mean value in the ring of current looped networkThe bandwidth availability ratio of each ring inner link
xi, determine balancing link load degree in ring.In a specific example, balancing link load degree can be true using following formula in the ring
It is fixed:
Wherein, E indicates balancing link load degree in ring, xiIndicate that the bandwidth availability ratio of i-th ring inner link, x indicate
Bandwidth availability ratio average value.
By taking ring inner link has 4 as an example, then balancing link load degree can indicate in above-mentioned ring are as follows:
On the other hand, the bandwidth availability ratio of each ring inner link based on above-mentioned acquisition can also determine that link is most in ring
The maximum value of the bandwidth availability ratio of each ring inner link can be determined as link highest bandwidth usage in ring by high bandwidth utilization
Rate, i.e., link highest bandwidth availability ratio can indicate in ring are as follows:
xm=max (xi)
Wherein, xmIndicate link highest bandwidth availability ratio in ring, max () is the function for seeking maximum value.
On the other hand, it can also obtain in preset time period and flow is carried out to each ring inner link in the current looped network
Sampling total sampling number, and to each ring inner link carry out traffic sampling when, flow collected be more than the ring inside
The super early warning value sampling number of the Flow Limit definite value of link.And then it can determine therefrom that the busy degree of each ring inner link or work as
The busy degree of preceding looped network is also possible to determine the busy degree of ring inner link and current looped network simultaneously in case of need
Busy degree.Super early warning value sampling number, the total sampling number of above-mentioned each ring inner link, can be directly from network monitoring system
It is extracted in the data of real time monitoring, is also possible to directly carry out the test acquisition data, the present invention to network in certain period of time
Embodiment does not limit this.
Determine each ring inner link it is busy spend when, remember total sampling that traffic sampling is carried out to i-th ring inner link
Number is Niall, when carrying out traffic sampling to i-th ring inner link, flow collected be more than the ring inner link stream
The super early warning value sampling number for measuring limit value is Nil, then the busy degree M of i-th ring inner linkilIt can indicate are as follows:
After the busy degree for determining each ring inner link, a chain can be determined according to the busy degree of each ring inner link is comprehensive
The busy degree in road, in order to carry out subsequent analysis.In a specific example, can be will be in the busy degree of each ring inner link
Maximum value be determined as link busy degree.Equally by taking current looped network has k ring inner link as an example, then link busy degree can be with table
It is shown as:
When the current looped network of determination busy is spent, total sampling number that traffic sampling is carried out to i-th ring inner link is remembered
For Niall, when carrying out traffic sampling to i-th ring inner link, flow collected be more than the ring inner link Flow Limit
The super early warning value sampling number of definite value is Nil, then the busy degree M of current looped networkhIt can indicate are as follows:Certainly, originally
Field technical staff is appreciated that can also determine the busy degree of current looped network using other modes, for example, in conjunction with each ring inside
The comprehensive busy degree etc. for determining current looped network of the busy degree of link.
Wherein it is determined that link busy degree MlOr determine the current busy degree M of looped networkhProcess, can be in coupling collar
Link highest bandwidth availability ratio x in balancing link load degree E, ringmAfter the network performance that current looped network has been determined, in need
In the case where determine again, to carry out comprehensive consideration.It can also be with chain in balancing link load degree E in above-mentioned determining ring, ring
Road highest bandwidth availability ratio xmProcess carry out simultaneously.It is illustrated respectively below for both modes.
In the first way, i.e., balancing link load degree E in coupling collar, link highest bandwidth availability ratio x in ringmIt determines
The network performance of current looped network, determines the busy degree M of current looped network again in case there is a needhOr link busy degree MlFor
Example, specific process can be discussed further below.
Firstly, according to link highest bandwidth availability ratio x in balancing link load degree E in the ring of above-mentioned determination, ringm, determine
The network performance of current looped network.In a specific example, it can be carried out using following manner:
By balancing link load degree E in ring and default equilibrium degree threshold value ETCompare, balancing link load degree in determining and ring
Link equalization rank in corresponding ring；
By link highest bandwidth availability ratio x in ringmWith pre-set bandwidths utilization threshold xTCompare, chain in the determining and ring
The corresponding highest bandwidth availability ratio rank of road highest bandwidth availability ratio；
Then according to link equalization rank, the pairing relationship of highest bandwidth availability ratio rank in ring, determination is described to work as front ring
The network performance of net.
In a specific example, by taking link equalization rank only has two-stage in ring as an example, it is assumed that balancing link load in ring
It spends E and is more than or equal to default equilibrium degree threshold value ET, it may be considered that link equalization rank is height in corresponding ring, or corresponding
The other identifier (such as 1) of rank, otherwise it is assumed that link equalization rank is other low or corresponding level marks in corresponding ring
Know (such as 0).
Similar, by taking highest bandwidth availability ratio rank also only has two-stage as an example, it is assumed that link highest bandwidth availability ratio in ring
xmMore than or equal to pre-set bandwidths utilization threshold xT, it may be considered that corresponding highest bandwidth availability ratio rank is height, or
The other identifier (such as 1) of corresponding level, otherwise it is assumed that corresponding highest bandwidth availability ratio rank is low or corresponding level
Other identifier (such as 0).
It is shown by taking rank is by high and low indicate as an example, in the following table 1 in a specific example according to link equalization grade in ring
Not, the pairing relationship of highest bandwidth availability ratio rank, determines the schematic diagram of the pairing relationship of the network performance of current looped network.
Table 1
In conjunction with upper table 1 it is known that in the case that link equalization rank is high in ring, highest bandwidth availability ratio rank is also high,
Illustrate that looped network load is very high, seriously affect looped network network performance, thus needs to carry out early warning, and warning level should be higher, example
Warning grade 3 shown in table 1 as above.In combination with shown in upper table 1, corresponding network optimization mode can also be provided simultaneously,
Such as dilatation or cutover etc. are carried out to looped network network.
And in the case that link equalization rank is low in ring, highest bandwidth availability ratio rank is high, illustrate that the single hop of looped network is negative
Load is very high, and looped network network is unhealthy, thus needs to carry out early warning, and warning level is relatively high, such as shown in upper table 1 in advance
Alert grade 2.In combination with shown in upper table 1, can also providing corresponding network optimization mode simultaneously, such as looped network network is carried out
Dilatation or cutover etc..
And in the case that link equalization rank is high in ring, highest bandwidth availability ratio rank is low, illustrate the current shape of looped network
State is good, thus can not have to early warning.Although but can not rule out load and do not reach early warning value, duration of peak value head causes
Influence, thus the network optimization mode provided can be further progress is needed to analyze, such as combine busy degree to looped network network
Analyze etc..
In the case that link equalization rank is low in ring, highest bandwidth availability ratio grade is also low, illustrate that looped network is lightly loaded, but it is negative
It carries unbalanced, illustrates the better performances of at least single link, although can not rule out load does not reach early warning value, but peak follow
It is influenced caused by time is longer, thus provides the low early warning of warning level, such as warning grade 1 shown in upper table 1.It ties simultaneously
It closes shown in table 1, corresponding network optimization mode can also be provided simultaneously, such as need further progress to analyze, such as in conjunction with numerous
Busy degree analyze to looped network network etc..
It, can be by the busy degree M of current looped network by taking current looped network as an example when being analyzed in conjunction with busy degreehWith default ring
Net busy degree threshold value MhTIt is compared, determines the busy degree rank of looped network corresponding with the busy degree of current looped network.
In a specific example, by taking the busy degree rank of the looped network of current looped network only has two-stage as an example, it is assumed that current looped network
Busy degree MhDegree threshold value M busy more than or equal to default looped networkhT, it may be considered that the busy degree rank of looped network of current looped network is
The other identifier (such as 1) of height or corresponding level, otherwise it is assumed that the busy degree rank of looped network of current looped network is low or right
Answer the other identifier (such as 0) of rank.
If the warning grade in conjunction with the network performance determined in above-mentioned table 1 is 1 or without early warning, and determines current looped network
The busy degree rank of looped network is height, although can then determine that current looped network is not heavily loaded, and duration of peak value head, thus can be given
Corresponding network optimization mode is dilatation or cutover out.If the warning grade in conjunction with the network performance determined in above-mentioned table 1 is 1
Or without early warning, and determine current looped network the busy degree rank of looped network be it is low, then can determine that the network of current looped network is very healthy,
Without making any adjustments.
On the other hand, it can be when needing that busy degree is combined to be analyzed, bind directly link busy degree MlTo current
The looped network performance of looped network carries out comprehensive analysis, is also possible to combining the busy degree M of current looped networkhDetermine that the looped network of current looped network is numerous
When busy degree rank is high, then it is directed to link busy degree MlOr the busy degree M of each ring inner linkilComprehensive analysis is carried out, with true
Surely the busy degree of specifically which ring inner link is higher.
To link busy degree MlFor being analyzed, it is specifically directed to link busy degree MlIt analyzed, determine that link is numerous
, can be similar otherwise with above-mentioned degree grade busy to the looped network of current looped network when busy degree rank, such as with link busy degree grade
It Zhi You not be for two-stage, it is assumed that link busy degree MlMore than or equal to default link busy degree threshold value MlT, it may be considered that chain
The busy degree rank in road is high or corresponding level other identifier (such as 1), otherwise it is assumed that link busy degree rank is low, or
The other identifier (such as 0) of person's corresponding level.
With the busy degree M to each ring inner linkilFor being analyzed, the specific busy degree for being directed to ring inner link
MilIt, can be with above-mentioned degree rank busy to the looped network of current looped network when being analyzed, determining the busy degree rank of ring inner link
Mode is similar, it is assumed for example that the busy degree M of i-th ring inner linkilDegree threshold value M busy more than or equal to default looped networkilT,
It may be considered that the busy degree rank of i-th ring inner link is high or corresponding level other identifier (such as 1), otherwise
The busy degree rank for thinking i-th ring inner link is low or corresponding level other identifier (such as 0).
In the second way, i.e., in combination with link highest bandwidth availability ratio in balancing link load degree E in ring, ring
xm, the current busy degree M of looped networkh/ link busy degree MlFor the network performance for determining current looped network, specific process can be as
It is lower described.
It is being determined that link equalization rank in ring, highest bandwidth availability ratio rank, looped network are numerous in conjunction with above-mentioned same mode
After busy degree rank/link busy degree rank, it can be and bind directly link equalization rank in ring, highest bandwidth availability ratio grade
Not, the pairing relationship of the busy degree rank three of looped network determines corresponding network performance, in case of need, numerous in conjunction with link
The busy degree rank of busy degree rank or each ring inner link carries out comprehensive analysis, to determine being specifically which ring inner link
Busy degree it is higher.It is also possible to bind directly link equalization rank in ring, highest bandwidth availability ratio rank, link busy degree grade
Other pairing relationship determines corresponding network performance.
The setting of specific pairing relationship and pairing relationship and corresponding network performance, optimal way, can be in conjunction with real
Border needs to set.For the purpose of concise explanation, with bind directly link equalization rank in ring, highest bandwidth availability ratio rank,
For the pairing relationship of the busy degree rank three of looped network determines corresponding network performance, a specific example is shown in the following table 2
In pairing relationship and corresponding early warning and optimal way schematic diagram.
Table 2
It will be appreciated by persons skilled in the art that being directed to different pairing relationships, corresponding network performance and correspondence
Network optimization mode can also do other settings.
It in the explanation of specific example as described above, is said for only assessing the network performance of current looped network
It is bright, shown in the principle configuration diagram in a specific example as shown in Figure 8, commented in the network performance to current looped network
It after estimating, can also be assessed for the network performance of second line of a couplet looped network of current looped network, and by the assessment of final network performance
As a result it is shown in the network topological diagram of looped network.
Based on thought same as mentioned above, the embodiment of the present invention also provides a kind of network performance evaluation optimization system,
The structural schematic diagram of the system in one embodiment is shown in Fig. 6.
As shown in fig. 6, the system in the present embodiment includes:
Inner link bandwidth availability ratio obtains module 61, the bandwidth usage of each ring inner link for obtaining current looped network
Rate；
Equilibrium degree determining module 62, for determining that inner link bandwidth availability ratio obtains each ring inner link that module obtains
Bandwidth availability ratio ring in bandwidth availability ratio mean value, according in bandwidth availability ratio mean value in the ring of the current looped network, each ring
The bandwidth availability ratio of portion's link determines balancing link load degree in ring；
Highest load determining module 63, for the bandwidth availability ratio according to each ring inner link, by each ring inner link
The maximum value of bandwidth availability ratio is determined as link highest bandwidth availability ratio in ring；
Performance determining module 64, for according to link highest bandwidth benefit in balancing link load degree in the ring, the ring
With rate, the network performance of current looped network is determined.
According to the scheme of embodiment present invention as described above, due to being substantially with domain dilatation in practical application
Main, this embodiment scheme assesses Network status using ring as basic unit, closer to practical application, from the angle of the network optimization
Degree can realize network bandwidth money to avoid due to blindness domain dilatation caused by single hop heavy duty by flow equalization in ring
The depth in source is taped the latent power, and network resource utilization is promoted.
It is pointed out that the bandwidth availability ratio it will be understood by those skilled in the art that above-mentioned ring inner link, actually
It is the assembly average of (such as one day, one week or even one month) in a relatively long time, therefore, by " ring inner link
Bandwidth availability ratio " extend determining " balancing link load degree in ring " and " link highest bandwidth availability ratio in ring ", and
The assembly average of (such as one day, one week or even one month) in one relatively long time.
It is possible thereby to it is well established that performance determining module 64 balancing link load degree, link highest in ring according to ring
When bandwidth availability ratio determines the network performance of current looped network, be substantially in conjunction with the long period average value come to network performance into
Row assessment, to carve the details of (such as every 15 minutes or even short time period per minute) when having erased each shorter.Therefore,
In order to more fully assess network performance, need to a certain extent to reflect the details at each moment.
Accordingly, in a specific example, performance determining module 64, can be in the network performance of the current looped network of determination
When carrying out traffic sampling in conjunction with the equipment to current network, acquired flow more than the number of threshold value integrate determination.The number
It can be for entire current looped network, be also possible to for each ring inner link in current looped network.
For for each ring inner link in current looped network, as shown in fig. 6, the system in the present embodiment can also wrap
Include data acquisition module 6311, link busy degree determining module 6312, in which:
Sampled data obtains module 6311, carries out traffic sampling to each ring inner link for obtaining in preset time period
Total sampling number, and when carrying out traffic sampling to each ring inner link, flow collected be more than the ring inner link
The super early warning value sampling number of Flow Limit definite value；
The link busy degree determining module 6312, for according to the super early warning value sampling number of each ring inner link, total
Sampling number determines the busy degree of each ring inner link, and determines link busy degree according to the busy degree of each ring inner link.?
In one specific example, it can be and the maximum value in the busy degree of each ring inner link is determined as link busy degree.This field
Technical staff, which is appreciated that, is determining the busy degree of each ring inner link, can also determine link using other modes are comprehensive
Busy degree.
At this point, above-mentioned performance determining module 64 is according to link most high band in balancing link load degree in the ring, the ring
Wide utilization rate, each ring inner link busy degree (or link busy degree) determine the network performance of current looped network.
For for entire current looped network, as shown in fig. 6, the system in the present embodiment may include that sampled data obtains
The busy degree determining module 6313 of module 6311, looped network, in which:
Sampled data obtains module 6311, carries out traffic sampling to each ring inner link for obtaining in preset time period
Total sampling number, and when carrying out traffic sampling to each ring inner link, flow collected be more than the ring inner link
The super early warning value sampling number of Flow Limit definite value；
The busy degree determining module 6313 of looped network, according to super early warning value sampling number, the total sampling number of each ring inner link
Determine the busy degree of current looped network.
At this point, above-mentioned performance determining module 64 is according to link most high band in balancing link load degree in the ring, the ring
Wide utilization rate, the current busy degree of looped network determine the network performance of current looped network.
It wherein, can simultaneously include that above-mentioned data acquisition module 6311, link are numerous in the system of the embodiment of the present invention
Busy degree determining module 6312, the busy degree determining module 6313 of looped network, so as to combine actual needs determine use link busy degree or
The busy degree of person's looped network, or comprehensive assessment is carried out to network performance in combination with the busy degree of looped network and link busy degree.
After the network performance of current looped network has been determined based on the mode in above-mentioned each example, it can worked as according to determining
The network performance of preceding looped network determines the network optimization mode to the current looped network corresponding with the network performance, and can adopt
It is optimized with the network optimization mode, to improve network performance.
The schematic diagram of the loop network link in a specific example is shown in Fig. 5, as shown in connection with fig. 5, for any one
For looped network, it is related to there are two types of link, a kind of ring inner link for inside the looped network, a kind of ring first line of a couplet chain for the first line of a couplet
Road.
In addition, might have lower layer's ring of looped network before access is deserved for each current looped network, as shown in connection with fig. 5,
For the looped network of backbone layer, the ring of multiple convergence layers is connected under meeting, and the ring of convergence layer can be connected to down the ring of multiple access layers.
It therefore, can also be further to each second line of a couplet ring of current looped network in the case where the second line of a couplet looped network connect in the presence of current looped network
Net is analyzed, further to assess network performance, especially in the case where the network performance of current looped network is bad,
It can further determine that out that specifically which second line of a couplet looped network goes wrong.
Accordingly, as indicated with 6, the system in the present embodiment can also include: that second line of a couplet looped network obtains module 66, for obtaining
State each second line of a couplet looped network under current looped network.
At this point, above-mentioned inner link bandwidth availability ratio obtains module 61, also second line of a couplet looped network acquisition module 66 is determined each
Second line of a couplet looped network obtains the bandwidth availability ratio of each ring inner link of current looped network as current looped network.
In addition, can also determine each ring first line of a couplet chain using aforesaid way for the ring upper level link of current looped network
The network performance on road.Accordingly, as shown in fig. 6, the system in the present embodiment can also include: that upper level link bandwidth availability ratio obtains
Module 601, flow equalization guiding module 602.
Wherein, upper level link bandwidth availability ratio obtains module 601, the band of each ring upper level link for obtaining current looped network
Wide utilization rate；
Flow equalization guiding module 602, for obtaining the current looped network that module 601 determines in upper level link bandwidth availability ratio
Each ring upper level link bandwidth availability ratio difference be greater than preset difference value threshold value when, by the high ring upper level link of bandwidth availability ratio
Flow import the low ring upper level link of bandwidth availability ratio；Wherein, specific flow lead-in mode can use it is existing at present with
And any possible mode being likely to occur later carries out.
At this point, above-mentioned inner link bandwidth availability ratio obtains module 61, it is also used to band in flow equalization guiding module 602
After the flow of the high ring upper level link of wide utilization rate imports the low ring upper level link of bandwidth availability ratio, each ring of current looped network is obtained
The bandwidth availability ratio of inner link.
Accordingly, the structural schematic diagram of the performance determining module 64 in a specific example is shown in Fig. 7.As shown in fig. 7,
Performance determining module 64 in the specific example includes:
Equilibrium degree rank determination module 641 is used for balancing link load degree in the ring and default equilibrium degree threshold value ratio
Compared with link equalization rank in determining ring corresponding with balancing link load degree in the ring；
Bandwidth availability ratio rank determination module 642 is used for link highest bandwidth availability ratio and pre-set bandwidths in the ring
Utilization threshold compares, and determines highest bandwidth availability ratio rank corresponding with link highest bandwidth availability ratio in the ring；
The busy degree rank determination module 643 of looped network is used for the current busy degree of looped network and the busy degree threshold of default looped network
Value is compared, the determining busy degree rank of looped network corresponding with the current busy degree of looped network；
Link busy degree rank determination module 644, for comparing the link busy degree and link busy degree threshold value
Compared with determining link busy degree rank corresponding with link busy degree；
Matching analysis module 645, for according to link equalization rank in the ring, the highest bandwidth availability ratio rank,
The pairing relationship of busy degree rank (and/or link busy degree rank) of looped network, determines the network performance of the current looped network.
In conjunction with described in the explanation as above to embodiment of the method, balancing link load degree E in first coupling collar can be, in ring
Link highest bandwidth availability ratio xmThe network performance of current looped network has been determined, and in case there is a need (such as in coupling collar
Link highest bandwidth availability ratio x in interior balancing link load degree E, ringmIt has been determined that the network performance of current looped network is preferable) it determines again
The busy degree M of current looped networkhOr determine link busy degree Ml(or the busy degree M of each ring inner linkil), in conjunction with current looped network
Busy degree MhOr link busy degree Ml(or the busy degree M of each ring inner linkil) comprehensive determination is carried out to network performance.?
It can be in combination with link highest bandwidth availability ratio x in balancing link load degree E in ring, ringm, the current busy degree M of looped networkh/ chain
The busy degree M in roadlDetermine the network performance of current looped network.On the other hand, it is also possible to determine pair based on the busy degree rank of looped network
The busy degree M of the network performance and then junction link answeredlOr the busy degree M of each ring inner linkilComprehensive analysis is carried out, with
Determine that the busy degree of specifically which ring inner link is higher.
Particular technique implementation in system of the embodiment of the present invention, mode during reference can be made to the above method embodiment into
Row, thus no longer repeat in detail herein.
One of ordinary skill in the art will appreciate that realize all or part of the process in above-described embodiment method,
It is that relevant hardware can be instructed to complete by computer program, the program can be stored in a non-volatile calculating
In machine read/write memory medium, in the embodiment of the present invention, which be can be stored in the storage medium of computer system, and by
At least one processor in the computer system executes, and includes the process such as the embodiment of above-mentioned each method with realization.Wherein,
The storage medium can be magnetic disk, CD, read-only memory (Read-Only Memory, ROM) or random storage note
Recall body (Random Access Memory, RAM) etc..
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (8)
1. a kind of network performance evaluation optimization method, which is characterized in that comprising steps of
Obtain the bandwidth availability ratio of each ring inner link of current looped network；
According to the bandwidth availability ratio of each ring inner link, bandwidth availability ratio mean value in the ring for deserving preceding looped network is determined；
According to the bandwidth availability ratio of bandwidth availability ratio mean value, each ring inner link in the ring of the current looped network, chain in ring is determined
Road load balancing degrees；
According to the bandwidth availability ratio of each ring inner link, the maximum value of the bandwidth availability ratio of each ring inner link is determined as in ring
Link highest bandwidth availability ratio；
According to link highest bandwidth availability ratio in balancing link load degree in the ring, the ring, the network of current looped network is determined
Performance；
It further comprises the steps of:
The total sampling number for carrying out traffic sampling in preset time period to each ring inner link in the current looped network is obtained, with
And when carrying out traffic sampling to each ring inner link, flow collected be more than the ring inner link Flow Limit definite value it is super
Early warning value sampling number；
The busy degree of each ring inner link is determined according to super early warning value sampling number, the total sampling number of each ring inner link, and
Maximum value in the busy degree of each ring inner link is determined as link busy degree；
The network performance of the current looped network is according to link highest bandwidth usage in balancing link load degree in the ring, the ring
Rate, the link busy degree determine；
Or
It further comprises the steps of:
The total sampling number for carrying out traffic sampling in preset time period to each ring inner link in the current looped network is obtained, with
And when carrying out traffic sampling to each ring inner link, flow collected be more than the ring inner link Flow Limit definite value it is super
Early warning value sampling number；
The busy degree of current looped network is determined according to super early warning value sampling number, the total sampling number of each ring inner link；
The network performance of the current looped network is according to link highest bandwidth usage in balancing link load degree in the ring, the ring
Rate, the busy degree of current looped network are determining.
2. network performance evaluation optimization method according to claim 1, which is characterized in that determine the net of the current looped network
The mode of network performance includes:
By balancing link load degree in the ring and default equilibrium degree threshold value comparison, determination and balancing link load degree in the ring
Link equalization rank in corresponding ring；
By link highest bandwidth availability ratio in the ring compared with pre-set bandwidths utilization threshold, determine with link in the ring most
The corresponding highest bandwidth availability ratio rank of high bandwidth utilization；
According to link equalization rank, the pairing relationship of the highest bandwidth availability ratio rank in the ring, determination is described to work as front ring
The network performance of net.
3. according to claim 1 to network performance evaluation optimization method described in 2 any one, which is characterized in that described in acquisition
Each second line of a couplet looped network under current looped network, and respectively using each second line of a couplet looped network as current looped network, into each ring for obtaining current looped network
The step of bandwidth availability ratio of inner link.
4. according to claim 1 to network performance evaluation optimization method described in 2 any one, which is characterized in that further include step
It is rapid:
Obtain the bandwidth availability ratio of each ring upper level link of current looped network；
When the difference of the bandwidth availability ratio of each ring upper level link of current looped network is greater than preset difference value threshold value, by bandwidth availability ratio
The flow of high ring upper level link imports the low ring upper level link of bandwidth availability ratio, obtains each of current looped network subsequently into described
The step of bandwidth availability ratio of ring inner link.
5. a kind of network performance evaluation optimization system characterized by comprising
Inner link bandwidth availability ratio obtains module, the bandwidth availability ratio of each ring inner link for obtaining current looped network；
Equilibrium degree determining module, for determining that inner link bandwidth availability ratio obtains the bandwidth for each ring inner link that module obtains
Bandwidth availability ratio mean value in the ring of utilization rate, according to bandwidth availability ratio mean value, each ring inner link in the ring of the current looped network
Bandwidth availability ratio, determine balancing link load degree in ring；
Highest load determining module, for the bandwidth availability ratio according to each ring inner link, by the bandwidth benefit of each ring inner link
It is determined as link highest bandwidth availability ratio in ring with the maximum value of rate；
Performance determining module, for according to link highest bandwidth availability ratio in balancing link load degree in the ring, the ring, really
The network performance of settled preceding looped network；
Further include that sampled data obtains module, link busy degree determining module:
The sampled data obtains module, for obtain in preset time period to each ring inner link in the current looped network into
Total sampling number of row traffic sampling, and to each ring inner link carry out traffic sampling when, flow collected be more than should
The super early warning value sampling number of the Flow Limit definite value of ring inner link；
The link busy degree determining module, for super early warning value sampling number, the total sampling number according to each ring inner link
It determines the busy degree of each ring inner link, and the maximum value in the busy degree of each ring inner link is determined as link busy degree；
The network performance of the current looped network is according to link highest bandwidth usage in balancing link load degree in the ring, the ring
Rate, the link busy degree determine；
Or
Further include that sampled data obtains module, the busy degree determining module of looped network:
The sampled data obtains module, for obtain in preset time period to each ring inner link in the current looped network into
Total sampling number of row traffic sampling, and to each ring inner link carry out traffic sampling when, flow collected be more than should
The super early warning value sampling number of the Flow Limit definite value of ring inner link；
The busy degree determining module of looped network, for super early warning value sampling number, the total sampling number according to each ring inner link
Determine the busy degree of current looped network；
The network performance of the current looped network is according to link highest bandwidth usage in balancing link load degree in the ring, the ring
Rate, the busy degree of current looped network are determining.
6. network performance evaluation optimization system according to claim 5, which is characterized in that the performance determining module packet
It includes:
Equilibrium degree rank determination module, for determining balancing link load degree in the ring and default equilibrium degree threshold value comparison
Link equalization rank in ring corresponding with balancing link load degree in the ring；
Bandwidth availability ratio rank determination module is used for link highest bandwidth availability ratio in the ring and pre-set bandwidths utilization rate threshold
Value compares, and determines highest bandwidth availability ratio rank corresponding with link highest bandwidth availability ratio in the ring；
The busy degree rank determination module of link busy degree rank determination module/looped network, for by link busy degree/current looped network
Busy degree is compared with the default busy degree threshold value of link busy degree threshold value/looped network, determining and link busy degree/current looped network
It is busy to spend the corresponding busy degree rank of link busy degree rank/looped network；
Matching analysis module, for busy according to link equalization rank, the highest bandwidth availability ratio rank, link in the ring
The pairing relationship for spending the busy degree rank of rank/looped network, determines the network performance of the current looped network.
7. according to network performance evaluation optimization system described in claim 5 to 6 any one, which is characterized in that under further including
Join looped network and obtains module；
The second line of a couplet looped network obtains module, for obtaining each second line of a couplet looped network accessed under the current looped network；
The inner link bandwidth availability ratio obtains module, and the second line of a couplet looped network is also obtained each second line of a couplet looped network that module determines and is made
For current looped network, the bandwidth availability ratio of each ring inner link of current looped network is obtained.
8. according to network performance evaluation optimization system described in claim 5 to 6 any one, which is characterized in that on further including
Join link bandwidth utilization rate and obtain module, flow equalization guiding module:
The upper level link bandwidth availability ratio obtains module, the bandwidth usage of each ring upper level link for obtaining current looped network
Rate；
The flow equalization guiding module, for obtaining the current looped network that module determines in the upper level link bandwidth availability ratio
When the difference of the bandwidth availability ratio of each ring upper level link is greater than preset difference value threshold value, by the high ring upper level link of bandwidth availability ratio
Flow imports the low ring upper level link of bandwidth availability ratio；
The inner link bandwidth availability ratio obtains module, in the flow equalization guiding module that bandwidth availability ratio is high
After the flow of ring upper level link imports the low ring upper level link of bandwidth availability ratio, the band of each ring inner link of current looped network is obtained
Wide utilization rate.
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