CN102571607A - A network velocity distribution system - Google Patents

Abstract

The invention discloses a network flow rate distribution system, comprising: background equipment and network flow rate distribution equipment; the network flow rate distribution equipment establishes a classification processing query list and stores the classification processing query list according to a table item processing command issued by the background equipment; the network flow rate distribution equipment identifies the network terminal level group and the service group which the network data message sent by the network terminal equipment belongs to in the classification processing inquiry list, and transmits the network data message to the corresponding network terminal according to the transmission threshold value corresponding to the network terminal level group and the service group which the network data message belongs to. The network flow rate distribution system of the invention carries out level division on users in the network, automatically identifies the service level and the user level of the network data message through the network flow rate distribution equipment, repeatedly calculates the guaranteed user and service threshold value, and automatically distributes the bandwidth of the network users again, thereby realizing the function of automatically adjusting the service bandwidth amount in the actual operation network according to the user priority mode.

Description

A network velocity distribution system

technical field

The invention belongs to the field of network transmission, in particular to a system capable of allocating network flow rates according to service characteristics and user characteristics.

Background technique

With the rapid development of the Internet, various network organizations such as governments and schools conduct more and more Internet-based businesses, for example, using the Internet for online shopping, data downloading and uploading, etc. Since different types of services have different bandwidth requirements, network administrators are required to manage network bandwidth to optimize network bandwidth application.

Network bandwidth management generally refers to the allocation of network bandwidth. The current network bandwidth allocation is generally realized based on different service characteristics. In this way, various service characteristics need to be identified to ensure the allocation of key services. The implementation method It is divided into the following two categories: one is that the network manager manually allocates the user bandwidth in the LAN; the other is to identify the network service characteristics through the management software according to the information reported by the network terminal, and report the statistical result information to the network management The operator calculates the bandwidth threshold according to the demand, and re-allocates the bandwidth to achieve the purpose of automatically allocating the network bandwidth.

But in practice, the priority levels of each user in the network are different. For example, the bandwidth of some users must be guaranteed, and the bandwidth of some users can be sacrificed or completely occupied. However, the current network flow rate allocation method cannot be combined with business Features and user priority levels are used to automatically allocate network bandwidth.

Contents of the invention

Aiming at the problems existing in the current network flow rate distribution method, the present invention proposes a network flow rate distribution system. The technical scheme that the present invention adopts is as follows:

A network flow rate distribution system, characterized in that it includes: background equipment and network flow rate distribution equipment;

The network manager issues an entry processing command to the network traffic distribution device through the background device, and the network traffic distribution device establishes a classification processing query list according to the entry processing command and stores it. The classification processing query list records network terminal level groups and business groups ; The network flow rate allocation device identifies the network terminal level group and the service group to which the network data message sent by the network terminal device belongs in the classification processing query list, and transmits the network according to the corresponding transmission threshold of the network terminal level group and service group to which it belongs The data message is sent to the corresponding network terminal.

The network flow rate distribution system of the present invention classifies the users in the network and classifies the services to distinguish which users and services can be guaranteed without limit, which users and services can be basically reserved, and can be downloaded through the background equipment. Afterwards, the network traffic rate allocation equipment can identify the service level and user level of network data packets by itself. After sampling and statistics of network data packets, it can repeatedly calculate the guaranteed user and service thresholds, and re-allocate network user bandwidth by itself, so that Realize the function of automatically adjusting the amount of service bandwidth in the actual operating network according to the user priority mode, and realize bandwidth reservation to ensure service, and achieve the purpose of reasonably and correctly allocating network bandwidth in a short period of time.

Description of drawings

Fig. 1 is a structural diagram of the network velocity distribution system of the present invention.

FIG. 2 is a structural diagram of the network flow rate distribution device in FIG. 1 .

Fig. 3 is a jump state diagram for completing the calculation of the proximity of the priority threshold.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

As shown in FIG. 1 , the network flow rate distribution system of the present invention includes: a background device 1 and a network flow rate distribution device 2 . The network manager issues an entry processing command to the network flow rate distribution device 2 through the background device 1, and the network flow rate distribution device establishes a classification processing query list according to the entry processing command and stores it. The classification processing query list records the network terminal level group and Service group; network flow rate distribution device 2 identifies the network terminal level group and the service group to which the network data message sent by the network terminal device belongs in the classification processing query list, and transmits according to the network terminal level group and service group to which it belongs. The threshold transmits network data packets to corresponding network terminals.

As shown in Figure 2, the network flow rate distribution device 2 includes: a table lookup device 21, a table lookup driver module 23, a memory 22 storing a classification processing query list, a service characteristic division module 24, a user characteristic division module 25, and a level threshold comparison Module 26 , priority threshold calculation module 27 , threshold bandwidth allocation module 28 , service division and statistics module 30 , user division and statistics module 31 .

The business feature division module 24 receives the network data message sent by the network terminal equipment, and drives the table look-up device 21 to look up the table in the classification processing query list through the table look-up driver module 23, and identifies that the network message data is in the classification processing query list Belonging to the business group, the network data message is embedded with a level label, and the business feature division statistics module 30 is updated according to the business feature division module 24 identification results in the classification processing query list; the user feature division module 25 identifies Network message data belongs to the network terminal level group in the classification processing query list, and the network data message is embedded with a level label. The feature division statistical information is updated; the grade threshold comparison module 26 compares the identification results of the service feature division module 24 and the business division statistics module 31 in the classification processing query list, and obtains the corresponding grade threshold of the network data message; the priority The threshold calculation module 27 performs corresponding priority threshold approach calculations according to the grade thresholds, obtains the corresponding transmission thresholds of network data packets, and updates the corresponding grade thresholds of the classification processing query list; Threshold, the network data packet is transmitted to the network terminal through the corresponding priority channel.

Among them, the storage space of the classification processing query list is divided according to the network terminal level group and the service group as shown in Table 1 below:

Table I

Among them, the user group entry records the relationship between the user address, the last packet arrival time of the user, the user traffic statistics, and the user level mark. General guarantee level, no guarantee level, etc. Different user levels have different output thresholds. The data storage format is shown in Table 2 below:

Table II

The address storage format of the user group entry is shown in Table 3 below:

Table three

Among them, the business group statistical entry records the relationship between the business ID, the last hit time of the business, the number of hits of the business, the traffic flow of the business, and the service level mark, and its data storage format is shown in Table 4 below:

Table four

The address storage format of the business group statistics entry is shown in Table 5 below:

Table five

Wherein, the priority threshold calculation module 27 performs corresponding priority threshold approach calculation according to the level threshold, and the step of obtaining the corresponding transmission threshold of the network data message is realized through a state machine, which includes a pre-approaching initial state S0, a current feature state S1, last feature state S2, transient steady state feature state S3; state S0 is affected by the last threshold module statistical information T3, and state S1 is controlled by the current feature matching statistical information G. The specific process is:

In state S0, jump to state S2 when the conditions are met, otherwise jump to state S1; in state S2, if the current feature does not meet the statistical information G, then adjust to state S1; in state S3, the corresponding level threshold output .

When the characteristics conform to the statistical information G changes drastically, the state machine S2 is continuously adjusted to S1 until the service and user characteristics in the network meet the error judgment condition E, and the transient steady state S3 appears. At this time, the state S3 can be considered as network traffic steady state.

Wherein, the bandwidth allocation strategy on which the threshold bandwidth allocation module 28 is based is that only the highest priority user traffic can be occupied in order to realize the highest priority group channel, and the total amount of this priority limit ensures reserved bandwidth, specifically:

Principle 1: If a group does not exceed the upper limit of its bandwidth usage, then: if the channel of its corresponding priority is not full, write to the group channel, that is, release; if the corresponding group channel is full, discard it;

Principle 2: If the traffic of a certain group exceeds its set upper limit, then: if the unfulfilled space of the corresponding group channel is greater than a certain threshold, write to the group channel; otherwise, it can be decided according to the status of the low priority group channel Discard or write low priority group data channels.

Applying this bandwidth allocation strategy can dynamically adjust the user's overspeed traffic within a certain range, and for data flows with the same priority, the processing of overspeed traffic and non-overspeed traffic is different. For non-overspeed traffic, as long as the group channel It can be written when it is not full, which can provide priority protection for traffic that is not overspeed during the peak period of busy business.

The threshold bandwidth allocation module 28 implements the bandwidth allocation strategy by means of proportional polling and reading, that is, the time for each group channel reading is proportional to the network service and user bandwidth priority it occupies. For example, for the priority of P1, the upper limit of the reading time for reading data from the group channel and outputting it is T1=T×a, where T is the timing time for all group channels to poll once, and a is the upper limit of the total bandwidth accounted for by the system bandwidth proportion.

If the total flow rate of a certain priority is less than its corresponding limited bandwidth, that is, a certain group channel has been read before the specified timing, the read control can choose to read the next group channel immediately, or wait until the timing arrives before reading. A group channel. Under the mechanism of immediately reading the next group channel, since the total time of one polling is shortened, dynamic adjustment among different priorities can be realized. For the infinite priority group channel, although the absolute value of the read timing time remains unchanged, the read time ratio increases, thus ensuring the smooth forwarding of the rated traffic. Under the mechanism of choosing to wait until the timing arrives before reading the next group channel, the bandwidth reserved for high-priority services can be better protected.

The network flow rate distribution device 2 also includes: an entry establishment module 29 . The background device 1 issues an entry processing command to the entry creation module 29, and the entry creation module 29 creates a classification processing query list according to the command.

The network flow rate distribution system of the present invention classifies the users in the network and classifies the services to distinguish which users and services can be guaranteed without limit, which users and services can be basically reserved, and can be downloaded through the background equipment. Afterwards, the network traffic rate allocation equipment can identify the service level and user level of network data packets by itself. After sampling and statistics of network data packets, it can repeatedly calculate the guaranteed user and service thresholds, and re-allocate network user bandwidth by itself, so that Realize the function of automatically adjusting the amount of service bandwidth in the actual operating network according to the user priority mode, and realize bandwidth reservation to ensure service, and achieve the purpose of reasonably and correctly allocating network bandwidth in a short period of time.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, any person familiar with the technical field within the technical scope disclosed in the present invention, according to the technical solution of the present invention Any equivalent replacement or change of the inventive concepts thereof shall fall within the protection scope of the present invention.

Claims (6)

1. a network flow rate distribution system is characterized in that comprising: background devices and network flow velocity distributing equipment;

Network manager is through background devices forwarding list item processing command under network flow velocity distributing equipment; Network flow velocity distributing equipment is set up to sort out based on the list item processing command and is handled Query List and storage, and this classification is handled Query List and recorded network terminal rank group and service groups; The network data message that network flow velocity distributing equipment recognition network terminal device sends is handled network terminal rank group affiliated in the Query List and affiliated service groups in classification, transmits threshold value transmitting network data message accordingly to the corresponding network terminal based on affiliated network terminal rank group and service groups.

2. based on the network flow rate distribution system of claim 1; It is characterized in that network flow velocity distributing equipment comprises: the device of tabling look-up, the driver module of tabling look-up, the memory that stores classification processing Query List, service feature division module, user characteristics division module, grade threshold comparison module, priority computing module, threshold value bandwidth allocation module, delineation of activities statistical module, user divide statistical module;

Service feature is divided module and is received the network data message that network-termination device sends; And drive the device of tabling look-up through the driver module of tabling look-up and table look-up sorting out to handle in the Query List; The recognition network message data is in the service groups of sorting out under handling in the Query List; To network data message embedding stage distinguishing label, the statistical module of delineation of activities is simultaneously divided the module recognition result based on service feature and is upgraded sorting out the service feature division statistical information of handling in the Query List; User characteristics is divided module recognition network message data in the network terminal rank group of sorting out under handling in the Query List; To network data message embedding stage distinguishing label, the statistical module of delineation of activities is simultaneously divided the module recognition result based on user characteristics and is upgraded sorting out the user characteristics division statistical information of handling in the Query List; The recognition result that the grade threshold comparison module is divided service feature module and delineation of activities statistical module is compared sorting out to handle in the Query List, obtains the corresponding grade threshold of network data message; The priority computing module carries out the respective priority threshold value near calculating based on grade threshold, obtains the network data message and transmits threshold value accordingly, and upgrade to sort out and handle the corresponding grade threshold of Query List; The threshold value bandwidth allocation module arrives the network terminal through the respective priority passage with the network data message transmissions according to certain allocated bandwidth strategy and transmission threshold value.

3. according to the network flow rate distribution system of claim 2, it is characterized in that, sort out the processing Query List and comprise user's category list item and service groups statistics list item;

User's category list item records the correlation of station address, the last bag of the user time of advent, customer flow statistical number and user gradation mark; Service groups statistics list item records the correlation that traffic ID, professional last time are hit time, professional hit-count, service traffics and grade of service mark.

4. according to the network flow rate distribution system of claim 2; It is characterized in that; The priority computing module carries out the respective priority threshold value near calculating according to grade threshold; Obtain the step that the network data message transmits threshold value accordingly and realize through state machine, this state machine comprises in advance near initial condition S0, current significant condition S1, last significant condition S2, steady state characteristic state S3 temporarily; State S0 is influenced by last threshold module statistical information, and state S1 receives current characteristic to meet statistical information to control, and detailed process is:

Under the state S0, when eligible, jump to state S2, otherwise jump to state S1; Under the state S2, meet statistical information, adjust to state S1 when not satisfying current characteristic; Under the state S3, corresponding associated ratings threshold value output.

Change when violent when characteristic meets statistical information, state machine S2 does not stop adjusts to S1, when business and user characteristics satisfy the error decision condition in network, temporary stable state S3 occurs, and think that state S3 is the network traffics stable state this moment.

5. according to the network flow rate distribution system of claim 2, it is characterized in that the allocated bandwidth strategy of threshold value bandwidth allocation module institute foundation is:

Principle 1: if certain group do not exceed its bandwidth SC service ceiling, then: if the passage of its corresponding priority less than, then write the group passage, i.e. clearance; If corresponding group passage is full, then abandon;

Principle 2: if certain group flow exceeds its capping, then: if its corresponding group passage during greater than a certain thresholding, then writes the group passage less than the space; Otherwise, can it be abandoned or write low priority group data channel according to the state decision of low priority group passage.

6. according to the network flow rate distribution system of claim 2, it is characterized in that network flow velocity distributing equipment also comprises: list item is set up module;

Background devices is set up forwarding list item processing command under the module to list item, and list item is set up module and set up classification processing Query List according to this order.

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