CN107276911B - Network management method and system - Google Patents
Network management method and system Download PDFInfo
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- CN107276911B CN107276911B CN201710524945.7A CN201710524945A CN107276911B CN 107276911 B CN107276911 B CN 107276911B CN 201710524945 A CN201710524945 A CN 201710524945A CN 107276911 B CN107276911 B CN 107276911B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/12—Avoiding congestion; Recovering from congestion
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/24—Traffic characterised by specific attributes, e.g. priority or QoS
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/29—Flow control; Congestion control using a combination of thresholds
Abstract
The embodiment of the invention provides a network management method and a system, wherein the method is applied to a server system comprising a network monitoring module and comprises the following steps: acquiring flow sampling information on each data link in a network by using a network monitoring module; judging whether the flow of each data link exceeds a flow threshold value or not based on the flow sampling information, and executing a congestion avoidance program aiming at a first data link when the flow on the first data link is judged to exceed the flow threshold value; wherein performing a congestion avoidance procedure for the first data link comprises: acquiring the flow occupied by each data packet transmitted on a first data link and the information of a transmitting end for transmitting each data packet based on the flow sampling information of the first data link; and limiting the transmitting end of the data packet with the maximum occupied flow to transmit data.
Description
Technical Field
The present invention relates to the field of network application technologies, and in particular, to a network management method and system.
Background
Congestion avoidance is a persistent topic in the QoS field, and a conventional congestion avoidance technique relies on implementation of network devices, such as a feedback mechanism on a switch or a router, which is not widely applied to most protocols, on the one hand, and on the other hand, the congestion avoidance technique based on the switch or the router only performs congestion avoidance policy execution for current devices, and each device needs to be configured independently, which lacks flexibility.
Disclosure of Invention
The embodiment of the invention provides a network management method and a network management device which can more flexibly avoid network congestion.
In order to solve the above technical problem, an embodiment of the present invention provides the following technical solutions:
the embodiment of the invention provides a network management method, which is applied to a server system comprising a network monitoring module and comprises the following steps:
acquiring flow sampling information on each data link in a network by using a network monitoring module;
judging whether the flow of each data link exceeds a flow threshold value or not based on the flow sampling information, and executing a congestion avoidance program aiming at a first data link when the flow on the first data link is judged to exceed the flow threshold value;
wherein performing a congestion avoidance procedure for the first data link comprises:
acquiring the flow occupied by each data packet transmitted on a first data link and the information of a transmitting end for transmitting each data packet based on the flow sampling information of the first data link;
and limiting the transmitting end of the data packet with the maximum occupied flow to transmit data.
In an embodiment of the present invention, the limiting the sender of the data packet occupying the largest flow rate to transmit data includes: and adjusting the transmission bandwidth of the transmitting end of the data packet occupying the largest flow.
In an embodiment of the present invention, the acquiring, by the network monitoring module, traffic sampling information on each data link in the network includes:
sending a flow monitoring signal to the network monitoring module;
receiving data packets of traffic information about each data link from the network monitoring module;
analyzing the data packet, and acquiring traffic sampling information on each data link in the network, wherein the traffic sampling information comprises traffic occupied by the data packet on each data link and information of a transmitting end for transmitting the data packet.
In one embodiment of the invention, the method further comprises:
the network monitoring module acquires sampling information on a data link by using a flow management module arranged on each switching device;
and analyzing the flow occupation information of each data link and the information of the sending end by using the sampling information.
In an embodiment of the present invention, when it is determined that the traffic on the first data link exceeds the traffic threshold, the performing the congestion avoidance procedure for the first data link further includes:
and performing a periodic packet loss operation on the first data link.
In addition, an embodiment of the present invention further provides a network management system, which includes:
at least one server;
the network monitoring module is arranged in at least one server and is configured to acquire flow sampling information on each data link;
a network management device configured in each of the servers and configured to determine whether traffic of each data link exceeds a traffic threshold based on the traffic sampling information, and to execute a congestion avoidance procedure for a first data link when it is determined that the traffic on the first data link exceeds the traffic threshold;
wherein performing a congestion avoidance procedure for the first data link comprises:
acquiring the flow occupied by each data packet transmitted on a first data link and the information of a transmitting end for transmitting the data packet based on the flow sampling information of the first data link;
and limiting the transmitting end of the data packet with the maximum occupied flow to transmit data.
In an embodiment of the present invention, the network management device is configured to limit the sender of the data packet occupying the largest flow rate to transmit data by adjusting a transmission bandwidth of the sender of the data packet occupying the largest flow rate.
In one embodiment of the invention, the network monitoring module is configured to send a traffic monitoring signal to the network monitoring module;
receiving data packets of traffic information about each data link from the network monitoring module;
analyzing the data packet, and acquiring traffic sampling information on each data link in the network, wherein the traffic sampling information comprises traffic occupied by the data packet on each data link and information of a transmitting end for transmitting the data packet.
In an embodiment of the present invention, the network monitoring module obtains sampling information on a data link by using a traffic management module disposed on each switching device;
and analyzing the flow occupation information of each data link and the information of the sending end by using the sampling information.
In one embodiment of the invention, the network management module is configured to perform a periodic packet loss operation on the first data link to perform a congestion avoidance procedure on the first data link.
Based on the above disclosure, it can be seen that the embodiments of the present invention have the following beneficial effects:
the embodiment of the invention can monitor the traffic service condition on each network link in real time, and can execute the congestion avoidance program aiming at a certain link when judging that the traffic on the link exceeds the threshold value. On one hand, the threshold value can be configured with different values according to requirements, and on the other hand, the congestion avoidance program executed by the link with the traffic usage exceeding the threshold value can also be executed in different modes, so that the method has better flexibility.
Drawings
FIG. 1 is a schematic flow chart of a network management method in an embodiment of the present invention;
fig. 2 is a schematic flow chart illustrating a method for acquiring traffic sampling information on each data link in a network by using a network monitoring module according to an embodiment of the present invention;
fig. 3 is a schematic flow chart of a network monitoring module acquiring traffic sampling information in the embodiment of the present invention;
fig. 4 is a schematic structural diagram of a network management system in the embodiment of the present invention.
Detailed Description
The following detailed description of specific embodiments of the present invention is provided in connection with the accompanying drawings, which are not intended to limit the invention.
It will be understood that various modifications may be made to the embodiments disclosed herein. Accordingly, the foregoing description should not be construed as limiting, but merely as exemplifications of embodiments. Other modifications will occur to those skilled in the art within the scope and spirit of the disclosure.
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the disclosure and, together with a general description of the disclosure given above, and the detailed description of the embodiments given below, serve to explain the principles of the disclosure.
These and other characteristics of the invention will become apparent from the following description of a preferred form of embodiment, given as a non-limiting example, with reference to the accompanying drawings.
It should also be understood that, although the invention has been described with reference to some specific examples, a person of skill in the art shall certainly be able to achieve many other equivalent forms of the invention, having the characteristics as set forth in the claims and hence all coming within the field of protection defined thereby.
The above and other aspects, features and advantages of the present disclosure will become more apparent in view of the following detailed description when taken in conjunction with the accompanying drawings.
Specific embodiments of the present disclosure are described hereinafter with reference to the accompanying drawings; however, it is to be understood that the disclosed embodiments are merely examples of the disclosure that may be embodied in various forms. Well-known and/or repeated functions and structures have not been described in detail so as not to obscure the present disclosure with unnecessary or unnecessary detail. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present disclosure in virtually any appropriately detailed structure.
The specification may use the phrases "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," which may each refer to one or more of the same or different embodiments in accordance with the disclosure.
The embodiments of the present invention are described in detail below with reference to the accompanying drawings, and the embodiments of the present invention provide a network management method, which can monitor traffic usage on a network data link in real time, and when it is determined that usage traffic on a certain data link exceeds a preset value, can execute a network congestion avoidance procedure for the network data link, thereby effectively preventing congestion of the data link from a terminal side.
Fig. 1 is a schematic flow chart of a network management method in an embodiment of the present invention, where the network management method in the embodiment of the present invention may be applied in a server system including a network monitoring module, where the network monitoring module may be disposed in at least one server of the server system, or may be configured as a separate device in the server system. The method provided by the embodiment of the invention can comprise the following steps:
acquiring flow sampling information on each data link in a network by using a network monitoring module;
judging whether the flow of each data link exceeds a flow threshold value or not based on the flow sampling information, and executing a congestion avoidance program aiming at a first data link when the flow on the first data link is judged to exceed the flow threshold value;
wherein performing a congestion avoidance procedure for the first data link comprises:
acquiring the flow occupied by each data packet transmitted on a first data link and the information of a transmitting end for transmitting each data packet based on the flow sampling information of the first data link;
and limiting the transmitting end of the data packet with the maximum occupied flow to transmit data.
The method provided by the embodiment of the invention can be applied to a server system, the server system can comprise at least one server, and the network monitoring module can be arranged in at least one server of the server system or can be constructed as a network monitoring device which is in communication connection with each server. The network monitoring module can receive the flow information of each data link in the network from the switching equipment arranged on the network node in real time and store the flow information correspondingly.
Each server in the server system can communicate with the network monitoring module, and acquire flow sampling information on each data link in the network through the network monitoring module. Specifically, each server in the server system may be provided with a network management module, and the network management module may request the network monitoring module for data traffic information on a corresponding data link in the network, and execute a congestion avoidance procedure on the data link with a relatively large adjustment load pressure based on traffic sampling information about each data link acquired from the network monitoring module. Therefore, the load pressure of each data link can be controlled from one side of the server, so that the congestion condition can be effectively avoided when network congestion does not occur.
As described above, the server in the embodiment of the present invention may send traffic monitoring information to the network monitoring module to request the network monitoring module to obtain traffic sampling information. As shown in fig. 2, a schematic flow chart of acquiring traffic sampling information on each data link in a network by using a network monitoring module in the embodiment of the present invention is shown, where the schematic flow chart may include:
sending a flow monitoring signal to the network monitoring module;
receiving data packets of traffic information about each data link from the network monitoring module;
analyzing the data packet, and acquiring traffic sampling information on each data link in the network, wherein the traffic sampling information comprises traffic occupied by the data packet on each data link and information of a transmitting end for transmitting the data packet.
In this embodiment of the present invention, the network management module in the server may send a traffic monitoring signal to the network monitoring module, where the traffic monitoring signal may be a traffic monitoring request corresponding to each data link in the entire network (local area network, wide area network, or mobile network), may also be a traffic monitoring request corresponding to a data link managed by the server, or may also be any data link in the network. Correspondingly, the network management module in each server may generate a traffic monitoring request based on the identifier of the data link to be managed, and the network monitoring module may conveniently identify the identifier of the data link therein when receiving the traffic monitoring request (traffic monitoring signal), and correspondingly query traffic sampling information corresponding to the identifier of the data link, where the traffic sampling information may include the capacity of data transmitted in the network data link and information of the transmitting end of the data. Generally, the data transmitted in the network data link includes address information of a transmitting end, address information of a destination end, and information of data in a data packet or may further include identification information. The above information may be included in the traffic sampling information in the embodiment of the present invention, so that the network management module analyzes the load condition of the data link and the cause of the load. The network monitoring module can generate a data packet returned to the network management module based on the inquired flow sampling information. The data packet may be associated with identification information of the data link correspondingly, so that the network management module can recognize and analyze the data packet respectively. In addition, the data packet also comprises address information of the server as a destination end, so that the flow information of the requested data link is conveniently fed back to the server.
And the network management module in the server may analyze the traffic sampling information of the data link corresponding to the query from the received data packet, and determine whether the traffic of the corresponding data link exceeds a preset traffic threshold based on the traffic sampling information, and if so, determine that the traffic pressure of the data link is high, and execute a congestion avoidance procedure for the data link. The network monitoring module may further perform encryption processing on a data packet when generating the data packet related to the traffic sampling information, and the network management module may perform decryption processing based on a preset key when receiving the data packet, so as to obtain the traffic sampling information in the data packet. This configuration may ensure complete transmission of data in the network.
In addition, in the embodiment of the present invention, when determining that the data traffic in the first data link exceeds the preset traffic threshold based on the traffic sampling information of each link in the data packet transmitted by the network monitoring module, the network management module may execute a congestion avoidance procedure for the first data link, where the congestion avoidance procedure may include obtaining, based on the traffic sampling information of the first data link, traffic occupied by each data packet transmitted on the first data link and sending end information of each data packet; and the transmitting end of the data packet occupying the largest flow is limited to transmit data. The transmitting end of the data packet occupying the largest flow can be limited to transmit data by limiting the bandwidth of the data transmitted by the transmitting end. That is, the transmission bandwidth of the sender of the data packet occupying the largest flow rate can be adjusted. Specifically, the network management device may determine, based on address information of the sending end of the data packet occupying the largest flow, a data link where the sending end is located, and may set a maximum transmission bandwidth of the data link to a preset bandwidth value, thereby adjusting data transmission on the link. Or in other embodiments of the present invention, an operation of performing a periodic packet loss on the data transmitted by the transmitting end may also be performed, so as to relieve the transmission pressure of the data on the data link.
Based on the above configuration, the following describes in detail a process of acquiring traffic sampling information by the network monitoring module in the embodiment of the present invention. As shown in fig. 3, a schematic flow chart of a network monitoring module in the embodiment of the present invention for obtaining traffic sampling information is shown, where the schematic flow chart may include:
the network monitoring module acquires sampling information on a data link by using a flow management module arranged on each switching device;
and analyzing the flow occupation information of each data link and the information of the sending end by using the sampling information.
In the embodiment of the present invention, the network monitoring device may monitor the switching devices (switches or routers) in the network in real time, and may periodically receive information of data traffic transmitted in the communication link of the network from each switching device. And stored. The switching equipment in the embodiment of the invention can periodically sample the data packet transmitted on the data link and upload the sampling result to the network monitoring equipment for storage, so that the corresponding sampling information can be sent in real time when the network management equipment requests the flow sampling information.
Based on the above configuration, the embodiment of the present invention can implement real-time monitoring of traffic usage on each network link, and when it is determined that traffic on a certain link exceeds a threshold, a congestion avoidance procedure can be executed for the link. On one hand, the threshold value can be configured with different values according to requirements, and on the other hand, the congestion avoidance program executed by the link with the traffic usage exceeding the threshold value can also be executed in different modes, so that the method has better flexibility.
In addition, the embodiment of the present invention further provides a network management system, which can apply the network management method described in the above embodiment, and can also monitor the traffic usage on the network data link in real time, and when it is determined that the usage traffic on a certain data link exceeds a preset value, can execute a network congestion avoidance procedure for the network data link, thereby effectively preventing congestion of the data link from the terminal side.
Fig. 4 is a schematic block diagram of a network management system according to an embodiment of the present invention, wherein the system may include at least one server 100, a network monitoring module 200, and a network management module 300. In the embodiment of the present invention, the network monitoring module 200 may be disposed in at least one server 100, or may be configured as a network monitoring device communicatively connected to each server 100. The network monitoring module 200 may receive traffic information of each data link in the network from the switching device in real time, and store the traffic information correspondingly.
The network management device 300 may be configured in each server 100, and may determine whether the traffic of each data link exceeds a traffic threshold based on traffic sampling information received from the network monitoring module 100, and perform a congestion avoidance procedure for a first data link when it is determined that the traffic on the first data link exceeds the traffic threshold; wherein performing a congestion avoidance procedure for the first data link comprises: acquiring the flow occupied by each data packet transmitted on a first data link and the information of a transmitting end for transmitting the data packet based on the flow sampling information of the first data link; and limiting the transmitting end of the data packet with the maximum occupied flow to transmit data.
Each server 100 in the server system may communicate with the network monitoring module 200 and obtain traffic sampling information on each data link in the network through the network monitoring module 200. Specifically, each server 100 in the server system may be provided with a network management module 300, and the network management module 300 may request the network monitoring module 200 for data traffic information on a corresponding data link in the network, and perform a congestion avoidance procedure on the data link with a relatively large adjustment load pressure based on the traffic sampling information about each data link acquired from the network monitoring module 200. Therefore, the load pressure of each data link can be controlled from one side of the server, so that the congestion condition can be effectively avoided when network congestion does not occur.
As described above, the network management module 300 in the server 100 according to the embodiment of the present invention may send the traffic monitoring information to the network monitoring module 200 to request the traffic sampling information acquired by the network monitoring module 200. As shown in fig. 2, which is a schematic flow chart of acquiring traffic sampling information on each data link in a network by using a network monitoring module in the embodiment of the present invention, a network management module 300 may send a traffic monitoring signal to the network monitoring module 200, receive a data packet related to traffic information of each data link from the network monitoring module 200, and may further parse the received data packet to acquire traffic sampling information on each data link in the network, where the traffic sampling information includes traffic occupied by the data packet on each data link and information of a transmitting end that transmits the data packet.
In this embodiment of the present invention, the network management module 300 in the server 100 may send a traffic monitoring signal to the network monitoring module 200, where the traffic monitoring signal may be a traffic monitoring request corresponding to each data link in the entire network (local area network, wide area network, or mobile network), may also be a traffic monitoring request corresponding to a data link managed by the server, or may also be any data link in the network. Correspondingly, the network management module 300 in each server 100 may generate a traffic monitoring request based on the identifier of the data link to be managed, and the network monitoring module 200 may conveniently identify the identifier of the data link therein when receiving the traffic monitoring request (traffic monitoring signal), and correspondingly query traffic sampling information corresponding to the identifier of the data link, where the traffic sampling information may include the capacity of data transmitted in the network data link and information of the sending end of the data. Generally, the data transmitted in the network data link includes address information of a transmitting end, address information of a destination end, and information of data in a data packet or may further include identification information. The above information may be included in the traffic sampling information in the embodiment of the present invention, so that the network management module analyzes the load condition of the data link and the cause of the load. The network monitoring module can generate a data packet returned to the network management module based on the inquired flow sampling information. The data packet may be associated with identification information of the data link correspondingly, so that the network management module can recognize and analyze the data packet respectively. In addition, the data packet also comprises address information of the server as a destination end, so that the flow information of the requested data link is conveniently fed back to the server.
Moreover, the network management module 300 in the server 100 may parse the traffic sampling information of the data link corresponding to the query from the received data packet, and determine whether the traffic of the corresponding data link exceeds a preset traffic threshold based on the traffic sampling information, if so, determine that the traffic pressure of the data link is large, and execute the congestion avoidance procedure for the data link. The network monitoring module may further perform encryption processing on a data packet when generating the data packet related to the traffic sampling information, and the network management module may perform decryption processing based on a preset key when receiving the data packet, so as to obtain the traffic sampling information in the data packet. This configuration may ensure complete transmission of data in the network.
In addition, in the embodiment of the present invention, when determining that the data traffic in the first data link exceeds the preset traffic threshold based on the traffic sampling information of each link in the data packet transmitted by the network monitoring module 200, the network management module 300 may execute a congestion avoidance procedure for the first data link, where the congestion avoidance procedure may include obtaining, based on the traffic sampling information of the first data link, traffic occupied by each data packet transmitted on the first data link and sending end information of each data packet; and the transmitting end of the data packet occupying the largest flow is limited to transmit data. The transmitting end of the data packet occupying the largest flow can be limited to transmit data by limiting the bandwidth of the data transmitted by the transmitting end.
That is, the transmission bandwidth of the sender of the data packet occupying the largest flow rate can be adjusted. Specifically, the network management device may determine, based on address information of the sending end of the data packet occupying the largest flow, a data link where the sending end is located, and may set a maximum transmission bandwidth of the data link to a preset bandwidth value, thereby adjusting data transmission on the link. Or in other embodiments of the present invention, an operation of performing a periodic packet loss on the data transmitted by the transmitting end may also be performed, so as to relieve the transmission pressure of the data on the data link.
Based on the above configuration, the following describes in detail a process of acquiring traffic sampling information by the network monitoring module in the embodiment of the present invention. As shown in fig. 3, which is a schematic flow chart of acquiring traffic sampling information by a network monitoring module in the embodiment of the present invention, wherein the network monitoring module 200 may acquire sampling information on a data link by using a traffic management module disposed on each switching device; and analyzing the flow occupation information of each data link and the information of the sending end by using the sampling information.
In this embodiment of the present invention, the network monitoring device 200 may monitor switching devices (switches or routers) in the network in real time, and may periodically receive information of data traffic transmitted in a communication link of the network from each switching device. And stored. The switching equipment in the embodiment of the invention can periodically sample the data packet transmitted on the data link and upload the sampling result to the network monitoring equipment for storage, so that the corresponding sampling information can be sent in real time when the network management equipment requests the flow sampling information.
Based on the above configuration, the embodiment of the present invention can implement real-time monitoring of traffic usage on each network link, and when it is determined that traffic on a certain link exceeds a threshold, a congestion avoidance procedure can be executed for the link. On one hand, the threshold value can be configured with different values according to requirements, and on the other hand, the congestion avoidance program executed by the link with the traffic usage exceeding the threshold value can also be executed in different modes, so that the method has better flexibility.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the electronic device to which the data processing method described above is applied may refer to the corresponding description in the foregoing product embodiments, and details are not repeated herein.
The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the scope of the present invention is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present invention, and such modifications and equivalents should also be considered as falling within the scope of the present invention.
Claims (6)
1. A network management method applied in a server system including a network monitoring module, the method comprising:
monitoring switching equipment in a network in real time by using a network monitoring module, and periodically receiving data traffic information transmitted in the network from each switching equipment so as to acquire traffic sampling information on each data link in the network;
the network management module of the server judges whether the flow of each data link exceeds a flow threshold value or not based on the flow sampling information, and executes a congestion avoidance program for a first data link from one side of the server when judging that the flow of the first data link exceeds the flow threshold value;
wherein performing a congestion avoidance procedure for the first data link comprises:
acquiring the flow occupied by each data packet transmitted on a first data link and the information of a transmitting end for transmitting each data packet based on the flow sampling information of the first data link;
limiting a sending end of a data packet occupying the largest flow to transmit data;
wherein, the limiting the sending end of the data packet with the largest occupied flow to transmit data comprises: the method comprises the steps of judging a first data link where a sending end is located based on address information of the sending end of a data packet occupying the largest flow, setting the maximum transmission bandwidth of the first data link where the sending end is located as a preset bandwidth value, and executing a periodic packet loss operation aiming at the first data link.
2. The method of claim 1 comprising: the acquiring of the traffic sampling information on each data link in the network by using the network monitoring module includes:
sending a flow monitoring signal to the network monitoring module;
receiving data packets of traffic information about each data link from the network monitoring module;
analyzing the data packet, and acquiring traffic sampling information on each data link in the network, wherein the traffic sampling information comprises traffic occupied by the data packet on each data link and information of a transmitting end for transmitting the data packet.
3. The method of claim 1, wherein the method further comprises:
the network monitoring module acquires sampling information on a data link by using a flow management module arranged on each switching device;
and analyzing the flow occupation information of each data link and the information of the sending end by using the sampling information.
4. A network management system, comprising:
at least one server;
the network monitoring module is arranged in at least one server and is configured to monitor the switching equipment in the network in real time and periodically receive the information of data traffic transmitted in the network from each switching equipment so as to acquire traffic sampling information on each data link;
a network management device configured in each of the servers, and configured to determine whether or not a traffic of each data link exceeds a traffic threshold based on the traffic sampling information, and to execute a congestion avoidance procedure for a first data link from the server side when it is determined that the traffic on the first data link exceeds the traffic threshold;
wherein performing a congestion avoidance procedure for the first data link comprises:
acquiring the flow occupied by each data packet transmitted on a first data link and the information of a transmitting end for transmitting the data packet based on the flow sampling information of the first data link;
limiting a sending end of a data packet occupying the largest flow to transmit data;
the network management equipment is configured to judge a first data link where a sending end is located based on address information of the sending end of a data packet occupying the largest flow, set the maximum transmission bandwidth of the first data link where the sending end is located to be a preset bandwidth value, and execute a congestion avoidance program aiming at the first data link by executing a periodic packet loss operation aiming at the first data link.
5. The system of claim 4, wherein the network monitoring module is configured to send a traffic monitoring signal to the network monitoring module;
receiving data packets of traffic information about each data link from the network monitoring module;
analyzing the data packet, and acquiring traffic sampling information on each data link in the network, wherein the traffic sampling information comprises traffic occupied by the data packet on each data link and information of a transmitting end for transmitting the data packet.
6. The system of claim 4, wherein the network monitoring module obtains sampling information on the data link using a traffic management module disposed on each switching device;
and analyzing the flow occupation information of each data link and the information of the sending end by using the sampling information.
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| CN106357547A (en) * | 2016-09-08 | 2017-01-25 | 重庆邮电大学 | Software-defined network congestion control algorithm based on stream segmentation |
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