CN104052681B - Flow control methods and device - Google Patents

Abstract

The invention discloses a flow control method and device, which relate to the technical field of communication, can perform dynamic flow control according to real-time link conditions, are more flexible, improve bandwidth utilization, and reduce bandwidth waste. The flow control method includes: setting a plurality of adjustable flow control strategies with different priorities; periodically generating a dynamic flow control list, and performing dynamic flow control according to the latest dynamic flow control list; generating the dynamic flow control list each time includes : Generate an empty dynamic flow control list, if it is judged that the current link will be congested without flow control, then add at least one of the adjustable flow control strategies to the dynamic flow control list according to the order of priority from low to high, The link will not be congested until the dynamic flow control is performed according to the current dynamic flow control list, and the available remaining bandwidth is allocated to the data flow corresponding to the adjustable flow control policy with the highest priority in the current dynamic flow control list.

Description

Flow control method and device

technical field

The present invention relates to the technical field of communications, in particular to a flow control method and device.

Background technique

With the rapid development of the Internet, various network applications emerge in an endless stream, and network traffic also presents a trend of rapid growth. Among them, network applications represented by P2P generate a large number of low-value-added data streams, consume a large amount of network bandwidth, cause congestion from time to time, seriously affect the overall service quality obtained by users, and even threaten the overall stability of the network. The current network traffic is huge, fluctuates frequently, and the protocol is complex and changeable. Therefore, in order to ensure network security and realize differentiated services at the same time, flow control is usually performed based on a deep packet inspection technology (Deep Packet Inspection, DPI).

A commonly used flow control method is to input the flow control policy into the DPI flow control device in advance, and execute flow control operations according to specific trigger conditions. For example, when the link traffic exceeds the threshold, the traffic of the P2P data stream is controlled, and the traffic of the P2P data stream is limited to 500 Mbps. However, the existing flow control methods are not flexible enough and tend to waste bandwidth.

Contents of the invention

The invention provides a flow control method and device, which can perform dynamic flow control according to real-time link conditions, are more flexible, improve bandwidth utilization, and reduce bandwidth waste.

In order to solve the problems of the technologies described above, the present invention adopts the following technical solutions:

In one aspect, a flow control method is provided, including:

Setting a plurality of adjustable flow control strategies with different priorities, and the different adjustable flow control strategies are used to specify preset control thresholds for different data flows;

Periodically generate a dynamic flow control list, and perform dynamic flow control according to the latest dynamic flow control list;

Generating a dynamic flow control list each time includes: generating an empty dynamic flow control list, and if it is judged that the current link will be congested without flow control, at least one of the adjustable flow The control policy is added to the dynamic flow control list until the link will not be congested when the dynamic flow control is performed according to the current dynamic flow control list, and the available remaining bandwidth on the link when the flow control is performed according to the current dynamic flow control list Assigned to the data flow corresponding to the adjustable flow control policy with the highest priority in the current dynamic flow control list.

The multiple adjustable flow control policies with different priorities are set as follows:

Set corresponding business flow control strategies according to business types, and different business flow control strategies are prioritized according to business types;

Or, set the corresponding business flow control policy according to the business type, and set the corresponding application flow control policy according to the application program type in the same business. Different business flow control policies are prioritized according to the business type. Different application programs Traffic control policies are prioritized based on application type;

Or, set the corresponding service flow control strategy according to the source and destination IP address, source and destination MAC address, source and destination port number or application layer protocol type of the data flow, and different service flow control strategies are prioritized according to the type of data flow divided.

In another aspect, a flow control device is provided, comprising:

An adjustable control strategy setting module, configured to set a plurality of adjustable flow control strategies with different priorities, and different adjustable flow control strategies are used to specify preset control thresholds for different data flows;

The dynamic flow control list setting module is used to periodically generate the dynamic flow control list. Each generation of the dynamic flow control list includes: generating an empty dynamic flow control list, which will occur if it is determined that the current link is not performing flow control Congestion, then add at least one of the adjustable flow control policies to the dynamic flow control list according to the order of priority from low to high, until the link will not be congested when the flow control is performed according to the current dynamic flow control list, and will be according to When the current dynamic flow control list performs flow control, the available remaining bandwidth on the link is allocated to the data flow corresponding to the adjustable flow control policy with the highest priority in the current dynamic flow control list;

The flow control module is used for flow control according to the latest dynamic flow control list.

The adjustable control strategy setting module is specifically used for:

Set corresponding business flow control strategies according to business types, and different business flow control strategies are prioritized according to business types;

Or, set the corresponding business flow control policy according to the business type, and set the corresponding application flow control policy according to the application program type in the same business. Different business flow control policies are prioritized according to the business type. Different application programs Traffic control policies are prioritized based on application type;

Or, set the corresponding service flow control strategy according to the source and destination IP address, source and destination MAC address, source and destination port number or application layer protocol type of the data flow, and different service flow control strategies are prioritized according to the type of data flow divided.

On the other hand, a flow control method is provided, including:

Setting a plurality of adjustable flow control strategies with different priorities, and the different adjustable flow control strategies are used to specify preset control thresholds for different data flows;

Setting a static flow control list and performing static flow control according to the static flow control list, where a non-adjustable flow control strategy is set in the static flow control list;

Periodically generate a dynamic flow control list, and perform dynamic flow control based on the latest dynamic flow control list on the basis of static flow control;

Each generation of the dynamic flow control list includes: generating an empty dynamic flow control list, if it is judged that the current link will be congested when only static flow control is not performed, then the link will be allocated according to the order of priority from low to high. At least one of the adjustable flow control policies is added to the dynamic flow control list until the link is not congested when flow control is performed according to the static flow control list and the current dynamic flow control list, and the link will be congested according to the static flow control list and the current dynamic flow control list. When the flow control list performs flow control, the available remaining bandwidth on the link is allocated to the data flow corresponding to the adjustable flow control policy with the highest priority in the current dynamic flow control list.

The multiple adjustable flow control policies with different priorities are set as follows:

Set corresponding business flow control strategies according to business types, and different business flow control strategies are prioritized according to business types;

Or, set the corresponding business flow control policy according to the business type, and set the corresponding application flow control policy according to the application program type in the same business. Different business flow control policies are prioritized according to the business type. Different application programs Traffic control policies are prioritized based on application type;

Or, set the corresponding service flow control strategy according to the source and destination IP address, source and destination MAC address, source and destination port number or application layer protocol type of the data flow, and different service flow control strategies are prioritized according to the type of data flow divided.

In another aspect, a flow control device is provided, comprising:

An adjustable control strategy setting module, configured to set a plurality of adjustable flow control strategies with different priorities, and different adjustable flow control strategies are used to specify preset control thresholds for different data flows;

The static flow control list setting module is used to set the static flow control list, and the non-adjustable flow control strategy is set in the static flow control list;

The dynamic flow control list setting module is used to periodically generate a dynamic flow control list. Each generation of a dynamic flow control list includes: generating an empty dynamic flow control list. If it is determined that the current link is not performing dynamic flow control but only static Congestion will occur during flow control, then add at least one of the adjustable flow control policies to the dynamic flow control list according to the order of priority from low to high, until the flow control is performed according to the static flow control list and the current dynamic flow control list The link will not be congested, and the available remaining bandwidth on the link when flow control is performed according to the static flow control list and the current dynamic flow control list is allocated to the adjustable flow with the highest priority in the current dynamic flow control list Control the data flow corresponding to the strategy;

The flow control module is used for flow control according to the static flow control list and the latest dynamic flow control list.

The adjustable control strategy setting module is specifically used for:

Set corresponding business flow control strategies according to business types, and different business flow control strategies are prioritized according to business types;

Or, set the corresponding business flow control policy according to the business type, and set the corresponding application flow control policy according to the application program type in the same business. Different business flow control policies are prioritized according to the business type. Different application programs Traffic control policies are prioritized based on application type;

Or, set the corresponding service flow control strategy according to the source and destination IP address, source and destination MAC address, source and destination port number or application layer protocol type of the data flow, and different service flow control strategies are prioritized according to the type of data flow divided.

The flow control method and device provided by the present invention perform dynamic flow control. The generation of each dynamic flow control list includes: when the link will be congested, the adjustable flow control strategy is added to the dynamic flow control list according to the order of priority, so that Real-time link conditions for flow control make the flow control process more flexible, and allocate the available remaining bandwidth to the adjustable flow control strategy with the highest priority in the dynamic flow control list, thereby improving bandwidth utilization and reducing bandwidth waste.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained based on these drawings without creative effort.

FIG. 1 is a flowchart of a flow control method in Embodiment 1 of the present invention;

FIG. 2 is a flowchart of a flow control method in Embodiment 2 of the present invention;

FIG. 3 is a specific flowchart of generating a dynamic flow control list each time in the flow control method of FIG. 2;

FIG. 4 is a structural block diagram of a flow control device in Embodiment 3 of the present invention;

Fig. 5 is a structural block diagram of a flow control device in Embodiment 4 of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

Embodiment one

As shown in Figure 1, an embodiment of the present invention provides a flow control method, including:

Step 101, setting a plurality of adjustable flow control strategies with different priorities, and different adjustable flow control strategies are used to define preset control thresholds for different data flows;

Specifically, the adjustable traffic policy can be divided according to different types of data flows, for example, according to business types, application types, or flow quintuples, etc. There is no limit to the division method of adjustable traffic control policies . The higher the priority of the adjustable flow control policy, the higher the authority of the data flow corresponding to the policy to use the link bandwidth.

Step 102, periodically generate a dynamic flow control list, and perform dynamic flow control according to the latest dynamic flow control list;

Each generation of the dynamic flow control list includes: generating an empty dynamic flow control list, if it is judged that the current link will be congested without flow control, at least one adjustable flow control strategy will be set according to the order of priority from low to high Join the dynamic flow control list until the link will not be congested when performing dynamic flow control according to the current dynamic flow control list, and allocate the available remaining bandwidth on the link to the current The data flow corresponding to the adjustable flow control policy with the highest priority in the dynamic flow control list.

In this step, the link bandwidth information and the input traffic information of the link can be obtained through the DPI device. The input traffic is the traffic that has not been flow controlled on the link. When a new cycle starts, an empty Dynamic flow control list, according to the input flow information, it can be judged whether the link will be congested if the flow control is no longer performed. The flow control policy will be added to the dynamic flow control list and executed until it is judged that the link will no longer be congested after the flow control is performed according to the dynamic flow control list; if not, the control will be performed according to the empty dynamic flow control list, that is Flow control is not performed in this cycle. In the above process, since the adjustable flow control strategy is pre-set, if the flow control is performed directly after adding the adjustable flow control strategy to the dynamic flow control list, there will often be surplus bandwidth on the link, so in order to ensure full utilization Bandwidth, the available remaining bandwidth can be allocated to the adjustable flow control strategy with the highest priority in the above dynamic flow control list (that is, the adjustable flow control strategy added to the dynamic flow control list last), and the control threshold of the data flow corresponding to the strategy can be increased .

Specifically, setting multiple adjustable flow control policies with different priorities in step 101 above may be: setting corresponding service flow control policies according to service types, and different service flow control policies are prioritized according to service types. For example, according to the business type, the web service flow control strategy, the video service flow control strategy, the P2P service flow control strategy and other service flow control strategies are set. The priority setting of each service flow control strategy is shown in Table 1, where the priority value The smaller the value, the higher the policy priority. The data flow control threshold in the service flow control policy can be set as required.

Table 1

business type priority Web business 1 video business 2 P2P business 4

Other business 3

Alternatively, setting multiple adjustable flow control policies with different priorities in the above step 101 may also be: setting corresponding service flow control policies according to business types, and setting corresponding application programs according to application program types in the same business Flow control strategy, different business flow control strategies are prioritized according to business types, and different application flow control strategies are prioritized according to application types. For example, on the basis of the above-mentioned Table 1, the data flow of the P2P service is set according to the application program type "PPS" application program flow control policy, "popular" application program flow control policy, etc. It should be noted that the priority order between the service flow control policy and the application program flow control policy is set according to the service flow control policy to which the application program belongs. For example, the priority of the P2P service flow control policy is the lowest among all services, then The priority of the application flow control policy in the P2P service must be lower than that of other service flow control policies and the application flow control policies in other service flow control policies.

Or, setting a plurality of adjustable flow control policies with different priorities in the above step 101 can also be: according to the source and destination IP addresses of the data flow, the source and destination MAC addresses, the source and destination port numbers or the application layer protocol types Set the corresponding business flow control strategy, and different business flow control strategies are prioritized according to the type of data flow.

Of course, the multiple adjustable flow control policies with different priorities set in step 101 above can also be set in other ways not mentioned in this embodiment.

In the flow control method in this embodiment, dynamic flow control is performed, and the generation of each dynamic flow control list includes: when the link will be congested, the adjustable flow control strategy is added to the dynamic flow control list according to the order of priority, so that it can be based on real-time Flow control is performed according to the specific link conditions, which makes the flow control process more flexible, and allocates the available remaining bandwidth to the adjustable flow control strategy with the highest priority in the dynamic flow control list, thereby improving bandwidth utilization and reducing bandwidth waste.

Embodiment two

As shown in Figure 2, an embodiment of the present invention provides a flow control method, including:

Step 201, setting a plurality of adjustable flow control strategies with different priorities, and different adjustable flow control strategies are used to define preset control thresholds for different data flows;

In this step, the adjustable traffic policy can be divided according to different types of data flows, for example, according to business types, application types, or flow quintuples. Not limited.

Step 202, setting a static flow control list and performing static flow control according to the static flow control list, where non-adjustable flow control policies are set;

In this step, the non-adjustable flow control strategy refers to the data flow control strategy that needs to control the service flow at any time, for example, set the flow control strategy corresponding to the "Xunlei" data flow in the P2P service to non-adjustable flow control strategy, at any moment, the flow of "Xunlei" is controlled within its own flow control threshold. This allows compatibility with existing flow control methods.

Step 203, periodically generate a dynamic flow control list, and perform dynamic flow control based on the latest dynamic flow control list on the basis of static flow control;

Each generation of the dynamic flow control list includes: generating an empty dynamic flow control list, if it is judged that the current link will be congested when only static flow control is not performed, then the link will be allocated according to the order of priority from low to high. At least one adjustable flow control policy is added to the dynamic flow control list until the link is not congested when flow control is performed according to the static flow control list and the current dynamic flow control list. When performing flow control, the available remaining bandwidth on the link is allocated to the data flow corresponding to the adjustable flow control policy with the highest priority in the current dynamic flow control list.

The multiple adjustable flow control policies with different priorities set in the above step 201 can be:

Set corresponding business flow control strategies according to business types, and different business flow control strategies are prioritized according to business types;

Or, set the corresponding business flow control policy according to the business type, and set the corresponding application flow control policy according to the application program type in the same business. Different business flow control policies are prioritized according to the business type. Different application programs Traffic control policies are prioritized based on application type;

Or, set the corresponding service flow control strategy according to the source and destination IP address, source and destination MAC address, source and destination port number or application layer protocol type of the data flow, and different service flow control strategies are prioritized according to the type of data flow divided.

The specific process of setting multiple adjustable flow control policies with different priorities is the same as that in Embodiment 1, and will not be repeated here.

The flow control method provided by the embodiment of the present invention is specifically described below through a complete example of flow control and three kinds of link situations. For example, the link bandwidth is 10G, the highest link utilization rate is 80%, and the flow on the link exceeds 8Gbps is considered to be congested.

First, the above step 201 is executed, wherein the adjustable flow control strategy corresponding to each data flow is shown in Table 2;

Table 2

stream type control threshold priority Web business 3Gbps 1 video business 3Gbps 2 P2P business 0 4 Other business 2Gbps 3 PPS 500Mbps 5 popular 500Mbps 6

Execute the above step 202, wherein only the "Xunlei" policy is included in the static flow control list, and the control threshold of the "Xunlei" data flow is 1Gbps. Since only the non-adjustable flow control policy is set in the static flow control list, only the "Xunlei" policy is set in the static flow control list. "Xunlei" data flow for flow control, the control threshold is 1Gbps;

Execute the above step 203, as shown in Figure 3, in the above step 203, the process of generating the dynamic flow control list each time specifically includes:

Step 2031, generating an empty dynamic flow control list;

Step 2032, judging whether the current link will be congested when only carrying out static flow control instead of dynamic flow control, if so, then enter step 2033, if not, then enter step 2034, obtain the dynamic flow control list without flow control strategy , that is, the data flow corresponding to the adjustable flow control policy is not controlled in this cycle;

Step 2033, adding the adjustable flow control strategy with the lowest priority in the dynamic flow control list that has not been added to the dynamic flow control list, and then proceeding to step 2035;

Step 2035, judging whether the link will be congested when performing flow control according to the static flow control list and the current dynamic flow control list, if so, then enter step 2033, if not, then enter step 2036;

Step 2036, allocate the available remaining bandwidth on the link to the data flow corresponding to the adjustable flow control policy with the highest priority in the current dynamic flow control list when performing flow control according to the static flow control list and the current dynamic flow control list .

link condition one

For example, the input traffic information on the link is shown in Table 3.

table 3

Since the "Xunlei" policy is an unadjustable flow control policy, the static flow control list always includes the flow control policy with a control threshold of 1 Gbps for "Xunlei" data flow. Therefore, if the flow control is performed according to the static flow control list, the The traffic of each data stream is shown in Table 4.

Table 4

The total traffic in the link is 6.5Gbps, which does not exceed 8Gbps. Therefore, in step 2032, it is judged that the link will not be congested, and only static flow control is required instead of dynamic flow control.

Link situation two

The input traffic information of the link is shown in Table 5.

table 5

The input total traffic in the link is 8.5Gbps, in step 2032 it is judged that the link will be congested, enter into step 2033, in step 2033, the "popularity" flow control policy is added in the dynamic flow control list, wherein the "popularity" data flow Control threshold is 500Mbps; In step 2035, it is judged that the link will not be congested again, and the link still has 1G bandwidth available; The control threshold of the data flow is increased to 1.5Gbps, and the flow of each data flow in the line after flow control is performed according to the static flow control list and the latest dynamic flow control list is shown in Table 6.

Table 6

At this time, the total traffic in the link is 8Gbps, no congestion will occur, and the utilization rate of the link is the highest.

Link situation three

The input traffic information of the link is shown in Table 7.

Table 7

The total input traffic of the link is 9.5Gbps. In step 2032, it is judged that the link will be congested, and the step 2033 is entered. In step 2033, the "popular" flow control strategy is added to the dynamic flow control list, and the control threshold of "popular" data flow It is 500Mbps; the total traffic of the link will be 9Gbps at this moment, in step 2035, it is judged that the link will still be congested; enter step 2033, "PPS" flow control policy is added in the dynamic flow control list, the control of "PPS" data flow Threshold is 500Mbps; The total flow in the link will be 8.5Gbps this moment, and in step 2035, it is judged that the link will still be congested; Enter step 2033, the P2P service flow control policy is added to the dynamic flow control list, due to "thunder", " Popular " and " PPS " all belong to P2P business, therefore carry out flow control according to the control threshold of data flow in the P2P business is 0; At this moment, the total flow in the link will be 6.5Gbps, in step 2035, it is judged that the link will not be congested , and there is still 1.5G bandwidth available; enter step 2036, allocate 1.5G bandwidth to the data flow corresponding to the P2P service with the highest priority, and the P2P service includes "Xunlei", "PPS", "Fengxing" and "Other P2P" applications Therefore, it is also necessary to allocate 1.5G bandwidth to the corresponding application data flow. Among them, "Xunlei" belongs to the data flow in the non-adjustable strategy, so "Xunlei" has the lowest priority in the P2P business, and the 1.5G bandwidth is allocated based on The order of priority from high to low is assigned to "Other P2P", "PPS", "Fengxing" and "Xunlei" data flows, and the priority of "Other P2P" data flows is determined by the priority of the P2P business traffic control policy, so "Other P2P" data flow has the highest priority in the P2P business. The control threshold of "Other P2P" data flow is limited to 500Mbps. After allocating 1.5G bandwidth to "Other P2P" data flow, there is still 1G remaining bandwidth, and then 1G The remaining bandwidth of the link is allocated to the "PPS" data flow with higher priority. After the flow control is performed, the traffic of each data flow on the link is shown in Table 8.

Table 8

At this time, the total traffic in the link is 8Gbps, no congestion will occur, and the utilization rate of the link is the highest.

In the flow control method in this embodiment, dynamic flow control is performed, and the generation of each dynamic flow control list includes: when the link will be congested, the adjustable flow control strategy is added to the dynamic flow control list according to the order of priority, so that it can be based on real-time Flow control is performed according to the specific link conditions, which makes the flow control process more flexible, and allocates the available remaining bandwidth to the adjustable flow control strategy with the highest priority in the dynamic flow control list, thereby improving bandwidth utilization and reducing bandwidth waste.

Embodiment three

As shown in FIG. 4 , an embodiment of the present invention provides a flow control device, including: an adjustable control strategy setting module 1, configured to set a plurality of adjustable flow control strategies with different priorities. The traffic adjustment control strategy is used to specify the preset control thresholds of different data streams respectively; the dynamic flow control list setting module 2 is used to periodically generate the dynamic flow control list, and each generation of the dynamic flow control list includes: generating an empty Dynamic flow control list, if it is judged that the current link will be congested when no flow control is performed, then at least one of the adjustable flow control strategies will be added to the dynamic flow control list according to the priority order from low to high, until according to the current The link will not be congested when the dynamic flow control list performs flow control, and the available remaining bandwidth on the link when the flow control is performed according to the current dynamic flow control list is allocated to the highest priority in the current dynamic flow control list The data flow corresponding to the adjustable flow control policy; the flow control module 3 is used to control the flow according to the latest dynamic flow control list.

The above-mentioned adjustable control policy setting module 1 is specifically used for: setting corresponding service flow control policies according to service types, different service flow control policies are prioritized according to service types; or, setting corresponding service flow rates according to service types Control policies, and set corresponding application flow control policies according to application types in the same business. Different business flow control policies are prioritized according to business types, and different application flow control policies are prioritized according to application types. ; Or, according to the source and destination IP address, source and destination MAC address, source and destination port number or application layer protocol type of the data flow to set the corresponding service flow control strategy, different service flow control strategies are prioritized according to the data flow type class division.

The specific flow control method is the same as that in the first embodiment above, and will not be repeated here.

The flow control device in this embodiment performs dynamic flow control. The generation of each dynamic flow control list includes: when the link will be congested, the adjustable flow control strategy is added to the dynamic flow control list according to the order of priority, so that it can be based on real-time Flow control is performed according to the specific link conditions, which makes the flow control process more flexible, and allocates the available remaining bandwidth to the adjustable flow control strategy with the highest priority in the dynamic flow control list, thereby improving bandwidth utilization and reducing bandwidth waste.

Embodiment Four

As shown in FIG. 5 , an embodiment of the present invention provides a flow control device, including: an adjustable control strategy setting module 1, configured to set a plurality of adjustable flow control strategies with different priorities. The traffic adjustment control strategy is used to specify the preset control thresholds of different data flows respectively; the static flow control list setting module 4 is used to set the static flow control list, and the non-adjustable flow control strategy is set in the static flow control list; The dynamic flow control list setting module 2 is used to periodically generate a dynamic flow control list. Each generation of a dynamic flow control list includes: generating an empty dynamic flow control list. If it is determined that the current link is not performing dynamic flow control but only Congestion will occur during static flow control, then add at least one of the adjustable flow control policies to the dynamic flow control list according to the order of priority from low to high, until flow control is performed according to the static flow control list and the current dynamic flow control list When the link will not be congested, the available remaining bandwidth on the link when flow control is performed according to the static flow control list and the current dynamic flow control list will be allocated to the highest priority adjustable The data flow corresponding to the flow control policy; the flow control module 3 is used to perform flow control according to the static flow control list and the latest dynamic flow control list.

The above-mentioned adjustable control policy setting module 1 is specifically used for: setting corresponding service flow control policies according to service types, different service flow control policies are prioritized according to service types; or, setting corresponding service flow rates according to service types Control policies, and set corresponding application flow control policies according to application types in the same business. Different business flow control policies are prioritized according to business types, and different application flow control policies are prioritized according to application types. ; Or, according to the source and destination IP address, source and destination MAC address, source and destination port number or application layer protocol type of the data flow to set the corresponding service flow control strategy, different service flow control strategies are prioritized according to the data flow type class division.

The specific flow control method is the same as that in the second embodiment above, and will not be repeated here.

The flow control device in this embodiment performs dynamic flow control. The generation of each dynamic flow control list includes: when the link will be congested, the adjustable flow control strategy is added to the dynamic flow control list according to the order of priority, so that it can be based on real-time Flow control is performed according to the specific link conditions, which makes the flow control process more flexible, and allocates the available remaining bandwidth to the adjustable flow control strategy with the highest priority in the dynamic flow control list, thereby improving bandwidth utilization and reducing bandwidth waste.

Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be realized by means of software plus necessary general-purpose hardware, and of course also by hardware, but in many cases the former is a better embodiment . Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product is stored in a readable storage medium, such as a floppy disk of a computer , a hard disk or an optical disk, etc., including several instructions for enabling a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in various embodiments of the present invention.

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Claims (8)

1. a kind of flow control methods, which is characterized in that including：

Multiple adjustable flow control strategies with different priorities are set, the different adjustable flow control strategies is for dividing Not Gui Ding different data streams default control thresholding；The multiple adjustable flow control strategy is pre-set；

Dynamic flow control list is periodically generated, and dynamic flow control is carried out according to newest dynamic flow control list；

Generating dynamic flow control list every time includes：Empty dynamic flow control list is generated, if judging current ink without flow Congestion can occur when control, then at least one adjustable flow control strategy is added according to priority orders from low to high Dynamic flow control list, when carrying out dynamic flow control according to current dynamic flow control list the link will not congestion, will The available remaining bandwidth of the chain road distributes to current dynamic when carrying out flow control according to current dynamic flow control list The corresponding data flow of adjustable flow control strategy of highest priority in flow control list.

2. flow control methods according to claim 1, which is characterized in that

The multiple adjustable flow control strategies set with different priorities as：

Corresponding service traffics control strategy is set according to type of service, different service traffics control strategies is according to type of service Carry out priority division；

Alternatively, corresponding service traffics control strategy is set according to type of service, and according to application class in same business Type sets corresponding application rs traffic control strategy, and different service traffics control strategies carries out priority according to type of service It divides, different application rs traffic control strategies carries out priority division according to Application Type；

Alternatively, according to the source of data flow, purpose IP address, source, target MAC (Media Access Control) address, source, destination slogan or application layer protocol kind Class sets corresponding service traffics control strategy, and different service traffics control strategies carries out priority according to data stream type and draws Point.

3. a kind of volume control device, which is characterized in that including：

Adjustable control strategy setting module, it is different for setting multiple adjustable flow control strategies with different priorities The adjustable flow control strategy is used to respectively provide the default control thresholding of different data streams；The multiple adjustable flow control Strategy is pre-set；

Dynamic flow control list setting module generates the dynamic flow control list every time for periodically generating dynamic flow control list Including：Generate empty dynamic flow control list, if judging, congestion can occur when without flow control for current ink, foundation from Dynamic flow control list is added at least one adjustable flow control strategy by low to high priority orders, until according to current Dynamic flow control list carry out when flow control the link will not congestion, flow will be carried out according to current dynamic flow control list The available remaining bandwidth of the chain road distributes to the adjustable flow of highest priority in current dynamic flow control list when control The corresponding data flow of control strategy；

Flow control module, for carrying out flow control according to newest dynamic flow control list.

4. volume control device according to claim 3, which is characterized in that

The adjustable control strategy setting module is specifically used for：

Corresponding service traffics control strategy is set according to type of service, different service traffics control strategies is according to type of service Carry out priority division；

Alternatively, corresponding service traffics control strategy is set according to type of service, and according to application class in same business Type sets corresponding application rs traffic control strategy, and different service traffics control strategies carries out priority according to type of service It divides, different application rs traffic control strategies carries out priority division according to Application Type；

Alternatively, according to the source of data flow, purpose IP address, source, target MAC (Media Access Control) address, source, destination slogan or application layer protocol kind Class sets corresponding service traffics control strategy, and different service traffics control strategies carries out priority according to data stream type and draws Point.

5. a kind of flow control methods, which is characterized in that including：

Multiple adjustable flow control strategies with different priorities are set, the different adjustable flow control strategies is for dividing Not Gui Ding different data streams default control thresholding；The multiple adjustable flow control strategy is pre-set；

The static flow control list of setting simultaneously carries out quiescent flow control according to the static flow control list, in the static state flow control list It is provided with non-adjustable flow control policy；

Dynamic flow control list is periodically generated, and is carried out according to newest dynamic flow control list on the basis of quiescent flow controls Dynamic flow controls；

Generating dynamic flow control list every time includes：Empty dynamic flow control list is generated, if judging current ink without dynamic Flow control and only carry out that congestion can occur when quiescent flow control, then will be at least one according to priority orders from low to high Dynamic flow control list is added in the adjustable flow control strategy, until according to static flow control list and current dynamic flow control list Carry out when flow control the link will not congestion, flow will be carried out according to static flow control list and current dynamic flow control list The available remaining bandwidth of the chain road distributes to the adjustable flow of highest priority in current dynamic flow control list when control The corresponding data flow of control strategy.

6. flow control methods according to claim 5, which is characterized in that

The multiple adjustable flow control strategies set with different priorities as：

Corresponding service traffics control strategy is set according to type of service, different service traffics control strategies is according to type of service Carry out priority division；

Alternatively, corresponding service traffics control strategy is set according to type of service, and according to application class in same business Type sets corresponding application rs traffic control strategy, and different service traffics control strategies carries out priority according to type of service It divides, different application rs traffic control strategies carries out priority division according to Application Type；

Alternatively, according to the source of data flow, purpose IP address, source, target MAC (Media Access Control) address, source, destination slogan or application layer protocol kind Class sets corresponding service traffics control strategy, and different service traffics control strategies carries out priority according to data stream type and draws Point.

7. a kind of volume control device, which is characterized in that including：

Adjustable control strategy setting module, it is different for setting multiple adjustable flow control strategies with different priorities The adjustable flow control strategy is used to respectively provide the default control thresholding of different data streams；The multiple adjustable flow control Strategy is pre-set；

Static flow control list setting module is provided with non-adjustable for setting static flow control list in the static state flow control list Flow control policy；

Dynamic flow control list setting module, for periodically generating dynamic flow control list, generating dynamic flow control list every time includes： Empty dynamic flow control list is generated, if judging current ink when only carrying out quiescent flow control without dynamic flow control Congestion can occur, then dynamic stream is added at least one adjustable flow control strategy according to priority orders from low to high List is controlled, the link will not be gathered around when carrying out flow control according to static flow control list and current dynamic flow control list Plug, the available tape remaining of chain road when by according to static flow control list and current dynamic flow control list progress flow control Width distributes to the corresponding data flow of adjustable flow control strategy of highest priority in current dynamic flow control list；

Flow control module, for carrying out flow control according to static flow control list and newest dynamic flow control list.

8. volume control device according to claim 7, which is characterized in that

The adjustable control strategy setting module is specifically used for：

Corresponding service traffics control strategy is set according to type of service, different service traffics control strategies is according to type of service Carry out priority division；

Alternatively, corresponding service traffics control strategy is set according to type of service, and according to application class in same business Type sets corresponding application rs traffic control strategy, and different service traffics control strategies carries out priority according to type of service It divides, different application rs traffic control strategies carries out priority division according to Application Type；

Alternatively, according to the source of data flow, purpose IP address, source, target MAC (Media Access Control) address, source, destination slogan or application layer protocol kind Class sets corresponding service traffics control strategy, and different service traffics control strategies carries out priority according to data stream type and draws Point.