CN107920031B - Adaptive adjustment method and device for access bandwidth - Google Patents
Adaptive adjustment method and device for access bandwidth Download PDFInfo
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- CN107920031B CN107920031B CN201610885182.4A CN201610885182A CN107920031B CN 107920031 B CN107920031 B CN 107920031B CN 201610885182 A CN201610885182 A CN 201610885182A CN 107920031 B CN107920031 B CN 107920031B
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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
- H04L47/70—Admission control; Resource allocation
- H04L47/76—Admission control; Resource allocation using dynamic resource allocation, e.g. in-call renegotiation requested by the user or requested by the network in response to changing network conditions
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- H04L47/80—Actions related to the user profile or the type of traffic
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Abstract
The invention discloses a self-adaptive adjustment method and device for access bandwidth, and relates to the field of network communication. The method comprises the following steps: determining the current network load condition of the user line according to the current bandwidth value and the throughput of the user line; and adjusting the bandwidth of the subscriber line according to the current network load condition of the subscriber line and the adjustment parameter, wherein the adjustment parameter is determined according to historical flow data of the subscriber line. Therefore, the self-adaptive adjustment of the bandwidth of the user line is realized, and the requirement of the bandwidth flexibility of the private line service is met.
Description
Technical Field
The present invention relates to the field of network communications, and in particular, to a method and an apparatus for adaptively adjusting an access bandwidth.
Background
The special line business of the government and enterprise customers is one of the core businesses of the operators. In recent years, access networking technology is rapidly developed, but network capability is still not open enough. The on-line switching-on mode of the private line service is not changed all the time, and operators often switch on a private line with fixed bandwidth for customers. When a client finds that capacity expansion is needed in the using process, the client applies for a larger bandwidth from an operator. The practical situation is that many clients are not clear about their own traffic models, and cannot clearly determine how much bandwidth should be applied for opening, and the traffic characteristics of many clients will change significantly with the influence of date, time and even many unpredictable factors, which puts high flexibility requirements on the bandwidth of private services.
The intelligent private line (BoD) service is an innovative service based on a Software Defined Optical Network (SDON), supports the adjustment of service bandwidth, and even allows government and enterprise customers to autonomously perform online bandwidth adjustment through a terminal interface.
However, it is difficult for government and enterprise customers to determine an appropriate bandwidth value, and if the bandwidth adjustment is too high, the lease cost of the private line is increased, and if the bandwidth adjustment is too low, network congestion and the like occur. In addition, for dynamically changing network traffic, it is also difficult to apply a fixed bandwidth template to match services, for example, a promotion activity of an e-commerce in a specific period may cause significant traffic changes, which are often difficult to predict accurately.
Therefore, a lot of technical thresholds cause the intelligent private line business to encounter certain resistance when being popularized on the ground, and the requirement of a client on bandwidth flexibility is difficult to meet.
Disclosure of Invention
The invention aims to solve the technical problems that: how to meet the requirement of bandwidth flexibility of private line service.
The first aspect of the present invention provides a method for adaptively adjusting an access bandwidth, including: determining the current network load condition of the user line according to the current bandwidth value and the throughput of the user line; and adjusting the bandwidth of the subscriber line according to the current network load condition of the subscriber line and the adjustment parameter, wherein the adjustment parameter is determined according to historical flow data of the subscriber line.
Determining the current network load condition of the user line according to the current bandwidth value and the throughput of the user line comprises the following steps: determining the current bandwidth utilization rate of the user line according to the current bandwidth value and the throughput of the user line; and comparing the current bandwidth utilization rate of the subscriber line with at least one preset bandwidth utilization rate threshold, and determining the current network load condition of the subscriber line according to the comparison result.
Wherein, adjusting the bandwidth of the subscriber line according to the current network load condition and the adjustment parameter of the subscriber line comprises: and adjusting the bandwidth of the subscriber line according to the current network load condition of the subscriber line and the adjustment parameters corresponding to the adjustment mode.
Preferably, in the adjustment mode of saving bandwidth first, when the network is in a heavy load state, the first additive factor mu is used1For step length, the bandwidth is linearly increased; when the network is in the bandwidth surplus state, the first multiplicative factor v is used1The bandwidth is adjusted in multiples; when the network is in a light load state, the bandwidth is kept unchanged; on-netUnder the adjustment mode with preferential network performance, when the network is in a heavy-load state, the second multiplicative factor v is used2Multiplying the bandwidth by multiple; when the network is in the bandwidth surplus state, the second additive factor mu is used 2Linearly adjusting the bandwidth down as a step length; when the network is in a light load state, the bandwidth remains unchanged.
The historical flow data of the subscriber line comprises an average value, a maximum value and a standard deviation of throughput; determining the adjustment parameter according to the historical traffic data of the subscriber line comprises: in the adjustment mode of saving bandwidth priority, the standard deviation of the throughput is used as the first additive factor mu1Taking the ratio of the maximum value to the average value of the throughput as a first multiplicative factor v1(ii) a In the adjustment mode with priority on network performance, the standard deviation of the throughput is used as a second additive factor mu2Taking the ratio of the maximum value to the average value of the throughput as a second multiplicative factor v2。
The current throughput of the subscriber line is detected by an operation, administration and maintenance (OAM) unit built in the optical transport network device.
The second aspect of the present invention provides an adaptive access bandwidth adjusting apparatus, including: the load determining module is used for determining the current network load condition of the user line according to the current bandwidth value and the throughput of the user line; and the bandwidth adjusting module is used for adjusting the bandwidth of the subscriber line according to the current network load condition of the subscriber line and the adjusting parameter, wherein the adjusting parameter is determined according to the historical flow data of the subscriber line.
Wherein the load determination module is configured to: determining the current bandwidth utilization rate of the user line according to the current bandwidth value and the throughput of the user line; and comparing the current bandwidth utilization rate of the subscriber line with at least one preset bandwidth utilization rate threshold, and determining the current network load condition of the subscriber line according to the comparison result.
Wherein, the bandwidth adjustment module is configured to: and adjusting the bandwidth of the subscriber line according to the current network load condition of the subscriber line and the adjustment parameters corresponding to the adjustment mode.
Wherein, the bandwidth adjustment module includes: the first bandwidth adjusting unit and/or the second bandwidth adjusting unit;
a first bandwidth adjustment unit for performing a bandwidth-saving priority adjustment mode by using a first additive factor mu when the network is in a heavy-load state1For step length, the bandwidth is linearly increased; when the network is in the state of bandwidth surplus, the first multiplicative factor v is used1The bandwidth is adjusted down by multiple; when the network is in a light load state, the bandwidth is kept unchanged;
a second bandwidth adjusting unit for adjusting the second multiplicative factor v when the network is in a heavy load state in an adjusting mode with a priority on the network performance2Multiplying the bandwidth by multiple; when the network is in the bandwidth surplus state, the second additive factor mu is used 2Linearly adjusting the bandwidth down as a step length; when the network is in a light load state, the bandwidth remains unchanged.
The historical flow data of the subscriber line comprises an average value, a maximum value and a standard deviation of throughput; the access bandwidth adaptive adjusting device further comprises: an adjustment parameter determining module for taking the standard deviation of the throughput as the first additive factor mu in the adjustment mode of saving bandwidth first1Taking the ratio of the maximum value to the average value of the throughput as a first multiplicative factor v1(ii) a In the adjustment mode with priority on network performance, the standard deviation of the throughput is used as a second additive factor mu2Taking the ratio of the maximum value to the average value of the throughput as a second multiplicative factor v2。
The bandwidth of the subscriber line is adaptively adjusted according to the current network load condition of the subscriber line and the adjustment parameter determined according to the historical flow data of the subscriber line, so that the requirement of bandwidth flexibility of the private line service can be met.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a flowchart of an embodiment of an adaptive access bandwidth adjustment method according to the present invention.
Fig. 2 is a schematic diagram illustrating the determination of network load according to the bandwidth utilization of the subscriber line according to the present invention.
Fig. 3A is a flowchart of an access bandwidth adaptive adjustment method based on an adjustment mode with bandwidth saving and priority according to the present invention.
FIG. 3B is a diagram illustrating the result of the adjustment mode for saving bandwidth first.
Fig. 4A is a flowchart of an access bandwidth adaptive adjustment method based on an adjustment mode with network performance priority according to the present invention.
Fig. 4B is a diagram illustrating the result of the adjustment mode for network performance prioritization.
Fig. 5 is a structural diagram of an access bandwidth adaptive adjustment apparatus according to an embodiment of the present invention.
Fig. 6 is a schematic diagram of a network architecture of a Software Defined Optical Network (SDON) system according to the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Aiming at the problem that bandwidth adjustment modes in intelligent private line services are rigid and cannot meet the requirement of bandwidth flexibility of government and enterprise customers, the invention provides an access bandwidth self-adaptive adjustment method which meets the requirement of bandwidth flexibility of the private line services.
Fig. 1 is a flowchart of an embodiment of an adaptive access bandwidth adjustment method according to the present invention. As shown in fig. 1, the method of this embodiment includes:
and S102, determining the current network load condition of the user line according to the current bandwidth value and the throughput of the user line.
The current bandwidth value of the subscriber line can be obtained from the configuration information of the subscriber line. The current throughput of the subscriber line can be detected by an operation, administration and maintenance (OAM) unit built in the Optical Transport Network (OTN) device.
One method for determining the current network load condition of the subscriber line is as follows:
1) determining the current bandwidth utilization rate of the user line according to the current bandwidth value and the throughput of the user line, wherein the formula is as follows:
where TP represents the current throughput, B represents the current bandwidth value, and α represents the current bandwidth utilization.
2) And comparing the current bandwidth utilization rate of the subscriber line with at least one preset bandwidth utilization rate threshold, and determining the current network load condition of the subscriber line according to the comparison result.
For example, bandwidth utilization thresholds p and q are set, p < q. p and q can be flexibly adjusted according to actual conditions. According to different values of the bandwidth utilization rate alpha, the network operation state is divided into three conditions of heavy load, light load and bandwidth surplus. Referring to fig. 2, when α < p, corresponding to a bandwidth surplus state in which the bandwidth allocated to the client is not fully utilized, a partial resource should be considered to be released; when alpha is larger than q, the bandwidth utilization rate is too high, even close to or up to 100%, and in a heavy load state, network congestion occurs, customer experience is affected, and bandwidth increase should be considered; when α is between p and q, it can be considered that the value of the bandwidth is substantially matched with the traffic of the client service, and the network is in a light load state.
Obviously, with reference to the solution of the present invention, those skilled in the art can divide the network load into different cases according to the traffic needs.
And S104, adjusting the bandwidth of the subscriber line according to the current network load condition of the subscriber line and the adjustment parameter, wherein the adjustment parameter is determined according to the historical flow data of the subscriber line. For example, the bandwidth needs to be adjusted up or down, the amplitude of the adjustment up or down, and the like are determined according to the information such as the average value, the maximum value, the standard deviation, and the like of the historical throughput of the subscriber line.
Therefore, the bandwidth of the subscriber line is adaptively adjusted according to the current network load condition of the subscriber line and the adjustment parameter determined according to the historical flow data of the subscriber line, and the requirement of bandwidth flexibility of the private line service can be met.
The determination method of the adjustment parameter and the parameter value are different according to the different bandwidth adjustment modes selected by the user. Therefore, in S104, the bandwidth of the subscriber line may be specifically adjusted according to the current network load condition of the subscriber line and the adjustment parameter corresponding to the adjustment mode.
The invention provides two exemplary bandwidth adjustment modes, namely an adjustment mode with bandwidth saving priority and an adjustment mode with network performance priority. The adjustment parameter determination method and the bandwidth adaptive adjustment method in each adjustment mode are described below.
Fig. 3A is a flowchart of an access bandwidth adaptive adjustment method based on an adjustment mode with bandwidth saving and priority according to the present invention. As shown in fig. 3A, the method of this embodiment includes:
s302, historical flow data such as the average value, the maximum value, the standard deviation and the like of the historical throughput of the subscriber line are collected.
S304, taking the standard deviation of the throughput as a first additive factor mu in the adjustment mode of saving bandwidth priority1Taking the ratio of the maximum value to the average value of the throughput as a first multiplicative factor v1。
And S306, referring to the step S102, setting bandwidth utilization rate thresholds p and q, and dividing the network operation state into three conditions of heavy load, light load and excessive bandwidth according to different values of the user line bandwidth utilization rate alpha.
S308, in the adjustment mode of saving bandwidth and giving priority, when the network is in a heavy load state, the first additive factor mu is used1Linearly increasing the bandwidth by a step size (S308 a); when the network is in the bandwidth surplus state, the first multiplicative factor v is used1Is multiplied byNumber, doubling down the bandwidth (S308 b); when the network is in a light load state, the bandwidth remains unchanged (S308c), maintaining the convergence of the bandwidth adjustment algorithm. The bandwidth adjustment algorithm is represented as follows:
where B (T) represents the bandwidth value of the current period T, B (T +1) represents the bandwidth value of the next period T +1, and other symbol meanings refer to the foregoing.
FIG. 3B is a diagram illustrating the result of the adjustment mode for saving bandwidth first. The initial bandwidth is 50MB/s, which goes through 20 adjustment cycles. The additive factor takes a value of 50 (bandwidth up-regulation) and the multiplicative factor takes a value of 0.5 (bandwidth down-regulation). It can be seen that the average bandwidth occupancy is 157.5MB/s and the congestion time occupancy is 30%. Overall, the average bandwidth occupied is relatively small (especially with respect to fig. 4B).
By the scheme, the self-adaptive adjustment of the user line bandwidth can be realized, and the requirement of saving the bandwidth of a user can be met as much as possible.
Fig. 4A is a flowchart of an access bandwidth adaptive adjustment method based on an adjustment mode with network performance priority according to the present invention. As shown in fig. 4A, the method of this embodiment includes:
s402, collecting historical flow data such as average value, maximum value, standard deviation and the like of historical throughput of the subscriber line.
S404, in the adjustment mode with priority on network performance, taking the standard deviation of the throughput as a second additive factor mu2Taking the ratio of the maximum value to the average value of the throughput as a second multiplicative factor v2。
And S406, referring to the step S102, setting bandwidth utilization rate thresholds p and q, and dividing the network operation state into three conditions of heavy load, light load and bandwidth surplus according to different values of the user line bandwidth utilization rate alpha.
S408, in the adjustment mode with the prior network performance, when the network is in a heavy-load state, the second multiplicative factor v is used2Multiplying, multiplying the bandwidth (S408 a); when in useWhen the network is in the bandwidth surplus state, the second additive factor mu is used2Linearly adjusting the bandwidth down for the step size (S408 b); when the network is in a light load state, the bandwidth remains unchanged (S408c), maintaining the convergence of the bandwidth adjustment algorithm. The bandwidth adjustment algorithm is represented as follows:
wherein the meaning of the respective symbols refers to the foregoing.
Fig. 4B is a diagram illustrating the result of the adjustment mode for network performance prioritization. The initial bandwidth is 50MB/s, which is over a total of 20 adjustment cycles. The additive factor is-50 (bandwidth down-regulation), the multiplicative factor is 2 (bandwidth up-regulation), and it can be seen that the average bandwidth is 235MB/s, and the congestion time accounts for 15%. Overall, the congestion time is less and the network performance is better (especially with respect to fig. 3B).
By the scheme, the self-adaptive adjustment of the user line bandwidth can be realized, and the user can be ensured to have better network performance as much as possible.
Fig. 5 is a schematic structural diagram of an access bandwidth adaptive adjustment apparatus according to an embodiment of the present invention. As shown in fig. 5, the access bandwidth adaptive adjusting apparatus 500 includes:
A load determining module 502, configured to determine a current network load condition of the subscriber line according to a current bandwidth value and throughput of the subscriber line; and
a bandwidth adjusting module 504, configured to adjust a bandwidth of the subscriber line according to a current network load condition of the subscriber line and an adjustment parameter, where the adjustment parameter is determined according to historical traffic data of the subscriber line.
Wherein the load determining module 502 is configured to: determining the current bandwidth utilization rate of the user line according to the current bandwidth value and the throughput of the user line; and comparing the current bandwidth utilization rate of the subscriber line with at least one preset bandwidth utilization rate threshold, and determining the current network load condition of the subscriber line according to the comparison result.
The bandwidth adjusting module 504 is configured to: and adjusting the bandwidth of the subscriber line according to the current network load condition of the subscriber line and the adjustment parameters corresponding to the adjustment mode.
The bandwidth adjusting module 504 includes: a first bandwidth adjustment unit 504a, and/or a second bandwidth adjustment unit 504 b;
a first bandwidth adjusting unit 504a, configured to adjust the bandwidth according to the first additive factor μ when the network is in a heavy load state in the bandwidth-saving priority adjustment mode 1For step length, the bandwidth is linearly increased; when the network is in the bandwidth surplus state, the first multiplicative factor v is used1The bandwidth is adjusted in multiples; when the network is in a light load state, the bandwidth remains unchanged.
A second bandwidth adjusting unit 504b, configured to, in an adjustment mode with network performance priority, use the second multiplicative factor v when the network is in a heavy load state2For multiple, the bandwidth is increased by multiple; when the network is in the bandwidth surplus state, the second additive factor mu is used2Linearly adjusting the bandwidth down as a step length; when the network is in a light load state, the bandwidth remains unchanged.
The historical flow data of the subscriber line comprises an average value, a maximum value and a standard deviation of throughput; the access bandwidth adaptive adjusting apparatus 500 further includes: an adjustment parameter determining module 503, configured to use the standard deviation of the throughput as the first additive factor μ in the adjustment mode with bandwidth saving priority1Taking the ratio of the maximum value to the average value of the throughput as a first multiplicative factor v1(ii) a In the adjustment mode with priority on network performance, the standard deviation of the throughput is used as a second additive factor mu2The ratio of the maximum value to the average value of the throughput is used as a second multiplicative factor v2。
The current throughput of the subscriber line is detected by an operation, administration and maintenance (OAM) unit built in the optical transport network device.
By the scheme, the self-adaptive adjustment of the user line bandwidth can be realized, and the requirement of saving the bandwidth of the user can be met as much as possible or the user can be ensured to have better network performance as much as possible according to different bandwidth adjustment modes.
As shown in fig. 6, the access bandwidth adaptive adjusting apparatus 500 of the present invention may be applied in a Software Defined Optical Network (SDON) system, and the access bandwidth adaptive adjusting apparatus 500 adapts to the SDON system through a northbound interface provided by the SDON controller 602 to perform a control operation of adaptive adjustment of the access bandwidth. The SDON system further includes an Optical Transport Network (OTN) device 604, and the like, in the present invention, an operation, administration and maintenance OAM unit may be built in the optical transport network device, and the OAM unit is used to detect and report information such as the current throughput of the subscriber line.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the storage medium may be a read-only memory, a magnetic disk or an optical disk.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. A method for adaptively adjusting an access bandwidth, comprising:
determining the current network load condition of the user line according to the current bandwidth value and the throughput of the user line;
selecting an adjustment parameter of an additive factor or a multiplicative factor to adjust the bandwidth of the subscriber line according to an adjustment mode with bandwidth saving priority or network performance priority and the current network load condition of the subscriber line, wherein the adjustment mode comprises the following steps: in the bandwidth-saving priority adjustment mode, when the network is in a heavy-load state, the first additive factor mu is used1For step length, the bandwidth is increased linearly, and when the network is in a bandwidth excess state, the first multiplicative factor v is used1The bandwidth is adjusted in multiple, and when the network is in a light load state, the bandwidth is kept unchanged; in the adjustment mode with priority on network performanceWhen the network is in a heavy load state, the second multiplicative factor v is used2Multiplying the bandwidth by multiple, and when the network is in the bandwidth surplus state, multiplying the bandwidth by a second additive factor mu2Linearly adjusting the bandwidth in step length, and keeping the bandwidth unchanged when the network is in a light load state;
wherein the adjusting parameter is determined according to the historical flow data of the subscriber line, and comprises: and taking the standard deviation of the throughput in the historical traffic data of the subscriber line as an additive factor for adjusting the bandwidth, and taking the ratio of the maximum value to the average value of the throughput in the historical traffic data of the subscriber line as a multiplicative factor for adjusting the bandwidth.
2. The method of claim 1, wherein said determining a current network load condition for a subscriber line based on a current bandwidth value and throughput for the subscriber line comprises:
determining the current bandwidth utilization rate of the user line according to the current bandwidth value and the throughput of the user line;
and comparing the current bandwidth utilization rate of the subscriber line with at least one preset bandwidth utilization rate threshold, and determining the current network load condition of the subscriber line according to the comparison result.
3. The method of claim 1, wherein the historical traffic data for the subscriber line includes an average, a maximum, a standard deviation of throughput;
the determining an adjustment parameter according to the historical traffic data of the subscriber line includes:
in the adjustment mode of saving bandwidth priority, the standard deviation of the throughput is used as the first additive factor mu1Taking the ratio of the maximum value to the average value of the throughput as a first multiplicative factor v1；
In the adjustment mode with priority on network performance, the standard deviation of the throughput is taken as a second additive factor mu2Taking the ratio of the maximum value to the average value of the throughput as a second multiplicative factor v2。
4. The method of claim 1, wherein the current throughput of the subscriber line is detected by an OAM unit built into the optical transport network device.
5. An apparatus for adaptively adjusting access bandwidth, comprising:
a load determining module, configured to determine a current network load condition of a user line according to a current bandwidth value and throughput of the user line;
a bandwidth adjusting module, configured to select an adjustment parameter of an additive factor or a multiplicative factor to adjust a bandwidth of the subscriber line according to an adjustment mode with a bandwidth saving priority or a network performance priority and a current network load condition of the subscriber line, where the bandwidth adjusting module includes: the first bandwidth adjusting unit and/or the second bandwidth adjusting unit; the first bandwidth adjusting unit is used for adjusting the first additive factor mu when the network is in a heavy load state in an adjusting mode of saving bandwidth and giving priority1For step length, the bandwidth is linearly increased, and when the network is in a bandwidth surplus state, a first multiplicative factor v is used1The bandwidth is adjusted in multiple, and when the network is in a light load state, the bandwidth is kept unchanged; the second bandwidth adjusting unit is used for adjusting the network performance in a prior adjusting mode by using a second multiplicative factor v when the network is in a heavy load state2Multiplying the bandwidth by multiple, and when the network is in the bandwidth surplus state, multiplying the bandwidth by a second additive factor mu 2Linearly adjusting the bandwidth downwards for the step length, and keeping the bandwidth unchanged when the network is in a light load state;
wherein the adjusting parameters are determined according to historical flow data of the subscriber line, and include: and taking the standard deviation of the throughput in the historical traffic data of the subscriber line as an additive factor for adjusting the bandwidth, and taking the ratio of the maximum value to the average value of the throughput in the historical traffic data of the subscriber line as a multiplicative factor for adjusting the bandwidth.
6. The apparatus of claim 5, wherein the load determination module is to:
determining the current bandwidth utilization rate of the user line according to the current bandwidth value and the throughput of the user line;
and comparing the current bandwidth utilization rate of the subscriber line with at least one preset bandwidth utilization rate threshold, and determining the current network load condition of the subscriber line according to the comparison result.
7. The apparatus of claim 5, wherein the historical traffic data for the subscriber line includes an average, a maximum, a standard deviation of throughput;
further comprising: an adjustment parameter determination module for
In the adjustment mode of saving bandwidth priority, the standard deviation of the throughput is used as the first additive factor mu 1Taking the ratio of the maximum value to the average value of the throughput as a first multiplicative factor v1；
In the adjustment mode with priority on network performance, the standard deviation of the throughput is used as a second additive factor mu2Taking the ratio of the maximum value to the average value of the throughput as a second multiplicative factor v2。
8. The apparatus of claim 5, wherein the current throughput of the subscriber line is detected by an OAM unit built in the optical transport network device.
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| CN102158391A (en) * | 2010-11-12 | 2011-08-17 | 华为数字技术有限公司 | Method and device for adjusting link bandwidth |
| CN104426802A (en) * | 2013-08-26 | 2015-03-18 | 中国科学院声学研究所 | Dynamic adjusting method for bandwidth |
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