CN111130950A

CN111130950A - Network flow evaluation method and device

Info

Publication number: CN111130950A
Application number: CN201911419288.5A
Authority: CN
Inventors: 贾武
Original assignee: China United Network Communications Group Co Ltd
Current assignee: China United Network Communications Group Co Ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-05-08

Abstract

The application provides an evaluation method and device for network traffic, relates to the technical field of communication, and can accurately evaluate the traffic condition borne by each node of a network after a target service is opened. The method comprises the following steps: determining a flow reference value of one or more target services; the target service is a service in a target network; the flow reference value of the target service is used for representing the network flow condition used when the target service is transmitted in the target network; determining a traffic pressure link tree of a target network; the flow pressure link tree of the target network is used for evaluating the flow evaluation value of each node of the target network; the flow evaluation value is used for representing the flow of the target service borne by the node; and inputting the flow reference values of one or more target services into a flow pressure link tree of the target network, and determining flow evaluation values of all nodes of the target network. The method and the device are used in the evaluation process of the network traffic.

Description

Network flow evaluation method and device

Technical Field

The present application relates to the field of communications technologies, and in particular, to a method and an apparatus for evaluating network traffic.

Background

With the continuous development of broadband services, the scale of broadband networks is continuously expanding. How to scientifically and effectively evaluate whether the current broadband network construction can meet the future service development according to the ever-increasing service requirements of users and the current broadband network construction condition is the central importance of broadband network construction planning.

However, currently, there is no scientific and effective method for evaluating whether the current broadband network construction can meet the future service development. Usually, in the process of broadband network construction, capacity expansion is performed for a place which cannot meet the service requirement of a user. However, the current capacity expansion method has serious hysteresis due to the long construction period of the broadband network. This will probably greatly affect the broadband service development of the operator, as well as the broadband service experience of the user.

Disclosure of Invention

The application provides a method and a device for evaluating network flow, which can accurately evaluate the flow condition borne by each node of a network after a target service is opened.

In order to achieve the purpose, the technical scheme is as follows:

in a first aspect, the present application provides a method for evaluating network traffic, including: the method comprises the steps that a network flow evaluation device determines a flow reference value of a target service; the target service is a service in a target network; the flow reference value of the target service is used for representing the flow generated by the target service in the network; the target traffic is traffic in the target network. After that, the evaluation device of the network flow determines the flow pressure link tree of the target network; and the traffic pressure link tree of the target network is used for evaluating the traffic evaluation value of each node of the target network. Finally, the network flow evaluation device inputs the flow reference value of the target service into the flow pressure link tree of the target network, and determines the flow evaluation value of each node of the target network.

Based on the technical scheme, according to the network traffic evaluation method provided by the application, a network traffic evaluation device determines a traffic reference value of a target service; the target service is a service in a target network; the flow reference value of the target service is used for representing the flow generated by the target service in the network; the target traffic is traffic in the target network. Thus, the evaluation device of the network traffic can determine the traffic generated in the target network when the target service is transmitted in the target network. After that, the evaluation device of the network flow determines the flow pressure link tree of the target network; and the traffic pressure link tree of the target network is used for evaluating the traffic evaluation value of each node of the target network. Finally, the network flow evaluation device inputs the flow reference value of the target service into the flow pressure link tree of the target network, and determines the flow evaluation value of each node of the target network. Based on this, the network flow evaluation device inputs the flow reference value of the target service into the flow pressure link tree of the target network, so as to obtain the flow evaluation value generated by each node after the target network opens the target service, thereby achieving the purpose of evaluating the target network.

In a second aspect, the present application provides an apparatus for evaluating network traffic, the apparatus comprising: a processing unit for determining a flow reference value of one or more target services; the target service is a service in a target network; the flow reference value of the target service is used for representing the network flow condition used when the target service is transmitted in the target network; the processing unit is also used for determining a traffic pressure link tree of the target network; the flow pressure link tree of the target network is used for evaluating the flow evaluation value of each node of the target network; the flow evaluation value is used for representing the flow of the target service borne by the node; and the processing unit is further used for inputting the flow reference values of one or more target services into a flow pressure link tree of the target network and determining the flow evaluation value of each node of the target network.

In a third aspect, the present application provides an apparatus for evaluating network traffic, the apparatus comprising: a processor and a communication interface; the communication interface is coupled to a processor for executing a computer program or instructions for implementing the method for evaluating network traffic as described in the first aspect and any of its possible implementations.

In a fourth aspect, the present application provides a computer-readable storage medium having stored therein instructions that, when executed on an evaluation apparatus of network traffic, cause the evaluation apparatus of network traffic to execute an evaluation method of network traffic as described in the first aspect and any one of the possible implementations of the first aspect.

In a fifth aspect, the present application provides a computer program product containing instructions that, when run on an evaluation apparatus of network traffic, cause the evaluation apparatus of network traffic to perform the method of evaluating network traffic as described in the first aspect and any one of the possible implementations of the first aspect.

In a sixth aspect, the present application provides a chip comprising a processor and a communication interface, the communication interface being coupled to the processor, the processor being configured to execute a computer program or instructions to implement the method for evaluating network traffic as described in the first aspect and any possible implementation manner of the first aspect.

In particular, the chip provided herein further comprises a memory for storing computer programs or instructions.

Drawings

Fig. 1 is a system architecture diagram of a communication system according to an embodiment of the present application;

fig. 2 is a hardware structure diagram of an apparatus for evaluating network traffic according to an embodiment of the present disclosure;

fig. 3 is a hardware configuration diagram of another network traffic evaluation device according to an embodiment of the present disclosure;

fig. 4 is a flowchart of a method for evaluating network traffic according to an embodiment of the present application;

fig. 5 is a flowchart of another method for evaluating network traffic according to an embodiment of the present application;

fig. 6 is a system architecture diagram of a broadband network according to an embodiment of the present application;

fig. 7 is a service flow diagram of an IPTV service according to an embodiment of the present application;

fig. 8 is a flowchart of another method for evaluating network traffic according to an embodiment of the present application;

fig. 9 is a schematic hardware structure diagram of an OLT device according to an embodiment of the present application;

fig. 10 is a schematic hardware structure diagram of an MDU device according to an embodiment of the present disclosure;

fig. 11 is a schematic hardware structure diagram of an HGU device according to an embodiment of the present disclosure;

fig. 12 is a flowchart of another method for evaluating network traffic according to an embodiment of the present application;

fig. 13 is a flowchart of another method for evaluating network traffic according to an embodiment of the present application;

fig. 14 is a schematic structural diagram of an apparatus for evaluating network traffic according to an embodiment of the present application;

fig. 15 is a schematic device structure diagram of a chip according to an embodiment of the present disclosure.

Detailed Description

The following describes in detail a method and an apparatus for evaluating network traffic according to an embodiment of the present application with reference to the drawings.

The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone.

The terms "first" and "second" and the like in the description and drawings of the present application are used for distinguishing different objects or for distinguishing different processes for the same object, and are not used for describing a specific order of the objects.

Furthermore, the terms "including" and "having," and any variations thereof, as referred to in the description of the present application, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements but may alternatively include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

It should be noted that in the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

In the description of the present application, the meaning of "a plurality" means two or more unless otherwise specified.

In order to solve the problem that in the prior art, whether the current network construction can meet the future service development cannot be evaluated, the application provides an evaluation method of network traffic, which comprises the following steps: the method comprises the steps that a network flow evaluation device determines a flow reference value of a target service; the target service is a service in a target network; the flow reference value of the target service is used for representing the flow generated by the target service in the network; the target traffic is traffic in the target network. Thus, the evaluation device of the network traffic can determine the traffic generated in the target network when the target service is transmitted in the target network. After that, the evaluation device of the network flow determines the flow pressure link tree of the target network; and the traffic pressure link tree of the target network is used for evaluating the traffic evaluation value of each node of the target network. Finally, the network flow evaluation device inputs the flow reference value of the target service into the flow pressure link tree of the target network, and determines the flow evaluation value of each node of the target network.

Compared with the prior art, the network flow evaluation device in the embodiment of the application can obtain the flow evaluation value of the full-volume node in the target network after the target service is switched on in the target network by establishing the flow pressure link tree of the target network and inputting the flow reference value of the target service into the flow pressure link tree of the target network, so that the purpose of evaluating the target network is achieved.

The method for evaluating network traffic provided in the embodiment of the present application is applied to a communication system 100 shown in fig. 1, where as shown in fig. 1, the communication system 100 includes: an evaluation device 10 of network traffic, and a plurality of nodes 20. Node 20 is a node in the target network.

The node 20 is configured to carry traffic of a target service transmitted in a target network.

The network traffic evaluation device 10 is used for evaluating the traffic of the target service carried by each node 20.

The network traffic evaluation device shown in fig. 1 may be a terminal or a server with computing capability, a chip disposed in the terminal or the server, or a system on chip in the terminal or the server. Next, a hardware configuration of the network traffic evaluation device in fig. 1 will be described, taking the network traffic evaluation device shown in fig. 2 as an example.

Optionally, the evaluation apparatus of the network traffic may also implement a function to be implemented by the evaluation apparatus of the network traffic by being deployed in a Virtual Machine (VM) on a physical machine.

For ease of understanding, the following describes the structure of the network traffic evaluation device in the embodiment of the present application.

Fig. 2 is a schematic diagram illustrating a hardware structure of an apparatus for evaluating network traffic according to an embodiment of the present application. As shown in fig. 2, the device for evaluating network traffic includes a processor 11, a memory 12, a communication interface 13, and a bus 14. The processor 11, the memory 12 and the communication interface 13 may be connected by a bus 14.

The processor 11 is a control center of the network traffic evaluation device, and may be a single processor or a collective term for a plurality of processing elements. For example, the processor 11 may be a general-purpose Central Processing Unit (CPU), or may be another general-purpose processor. Wherein a general purpose processor may be a microprocessor or any conventional processor or the like.

For one embodiment, processor 11 may include one or more CPUs, such as CPU0 and CPU1 shown in FIG. 2.

The memory 12 may be, but is not limited to, a read-only memory (ROM) or other type of static storage device that may store static information and instructions, a Random Access Memory (RAM) or other type of dynamic storage device that may store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.

In a possible implementation, the memory 12 may be present separately from the processor 11, and the memory 12 may be connected to the processor 11 via a bus 14 for storing instructions or program code. The processor 11, when calling and executing the instructions or program codes stored in the memory 12, can implement the network quality evaluation method provided by the embodiment of the present invention.

In another possible implementation, the memory 12 may also be integrated with the processor 11.

And a communication interface 13 for connecting with other devices through a communication network. The communication network may be an ethernet network, a radio access network, a Wireless Local Area Network (WLAN), or the like. The communication interface 13 may comprise a receiving unit for receiving data and a transmitting unit for transmitting data.

The bus 14 may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended ISA (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 2, but it is not intended that there be only one bus or one type of bus.

It is to be noted that the structure shown in fig. 2 does not constitute a limitation of the evaluation means of the network traffic. The means for evaluating network traffic may include more or fewer components than shown, or some components may be combined, or a different arrangement of components than those shown in fig. 2.

Fig. 3 shows another hardware configuration of the network traffic evaluation device in the embodiment of the present application. As shown in fig. 3, the evaluation device of network traffic may include a processor 21 and a communication interface 22. The processor 21 is coupled to a communication interface 22.

The function of the processor 21 may refer to the description of the processor 11 above. The processor 21 also has a memory function, and the function of the memory 12 can be referred to.

The communication interface 22 is used to provide data to the processor 21. The communication interface 22 may be an internal interface of the communication device, or may be an external interface (corresponding to the communication interface 13) of an evaluation device of network traffic.

It is noted that the configuration shown in fig. 2 (or fig. 3) does not constitute a limitation of the evaluation means of the network traffic, which may comprise more or less components than those shown in fig. 2 (or fig. 3), or a combination of some components, or a different arrangement of components, in addition to those shown in fig. 2 (or fig. 3).

The following describes in detail an evaluation method of network traffic provided by an embodiment of the present application, with reference to the communication system shown in fig. 1 and the evaluation apparatus of network traffic shown in fig. 2 (or fig. 3).

As shown in fig. 4, a flowchart of a method for evaluating network traffic provided in an embodiment of the present application is shown, where the method includes the following steps:

s101, the evaluation device of the network flow determines flow reference values of one or more target services.

The target service is a service in a target network; the flow reference value of the target service is used for representing the network flow condition used when the target service is transmitted in the target network; the target service is a service in a target network.

In a possible implementation manner, the target service in the embodiment of the present application may be a service determined after an operator predicts future user requirements and network development. The traffic reference value in the embodiment of the present application is a traffic value generated when a target service is transmitted in a network, which is determined through an actual network test.

For example, the operator determines that in the next two years, to complete the upgrade and modification of the broadband network in city a, the bandwidth of all the broadband services in city a after upgrade is 1G broadband services. Correspondingly, the target service in the embodiment of the present application is all the upgraded broadband services in city a.

Aiming at the upgraded broadband service in the market A, the evaluation device of the network flow opens the test service of the service, performs service test and determines the flow value generated by the service in the target network. The evaluation device of the network flow takes the flow value as the flow reference value of the service. For example, the evaluation device for network traffic tests and determines that after the bandwidth of broadband service with a plurality of users is upgraded to 1G, the average network traffic generated by each user in a network peak time period is 20 Mb/s. The traffic test value of the target traffic is 20 Mb/s.

S102, determining a flow pressure link tree of the target network by the network flow evaluation device.

The traffic pressure link tree of the target network is used for evaluating the traffic evaluation value of each node of the target network. And the traffic evaluation value is used for representing the traffic of the target service borne by the node.

In a possible implementation manner, the network traffic evaluation device obtains node information of the target network, network topology information, and a data transmission manner between the nodes.

And establishing a flow pressure link tree of the target network according to the node information of the target network, the network topology information and the data transmission mode among all the nodes.

S103, the network flow evaluation device inputs the flow reference value of the target service into a flow pressure link tree of the target network, and determines the flow evaluation value of each node of the target network.

It should be noted that the traffic pressure link tree of the target network defines the link relationship between the nodes in the target network and the data transmission mode between the nodes. And determining the quantity of the target service borne by each node according to the information and the flow pressure link tree of the target network, and determining the flow evaluation value of each node according to the flow test value of the target service, the quantity of the target service and the transmission relation of the target service among the nodes.

For example, the K node carries L target services, and the L target services are transmitted in a unicast manner at the K node. The flow evaluation value of the K node is the sum of the flow test values of the L target services.

Based on the above technical solution, in the network traffic evaluation method provided in the embodiments of the present application, a network traffic evaluation device determines a traffic reference value of a target service; the target service is a service in a target network; the flow reference value of the target service is used for representing the flow generated by the target service in the network; the target traffic is traffic in the target network. Thus, the evaluation device of the network traffic can determine the traffic generated in the target network when the target service is transmitted in the target network. After that, the evaluation device of the network flow determines the flow pressure link tree of the target network; and the traffic pressure link tree of the target network is used for evaluating the traffic evaluation value of each node of the target network. Finally, the network flow evaluation device inputs the flow reference value of the target service into the flow pressure link tree of the target network, and determines the flow evaluation value of each node of the target network. Based on this, the network flow evaluation device inputs the flow reference value of the target service into the flow pressure link tree of the target network, so as to obtain the flow evaluation value generated by each node after the target network opens the target service, thereby achieving the purpose of evaluating the target network.

Based on the technical solution shown in fig. 4, as shown in fig. 5, S102 in the embodiment of the present application may be specifically implemented in the following manner.

S1021, the network flow evaluation device obtains node information of the target network, network topology information and data transmission modes among all the nodes.

In a possible implementation manner, in the case that the target network is a broadband network, the node of the target network includes: a service source node, a broadband access server (BRAS), an Optical Line Terminal (OLT), a Multiple Dwelling Unit (MDU), and a Home Gateway Unit (HGU).

Accordingly, the node information of the target network includes: service source node information, BRAS information, OLT information, MDU information, HGU information.

The topology information of the target network is the connection relationship between the nodes.

Fig. 6 is a schematic diagram illustrating a system architecture of a broadband network according to an embodiment of the present application. The network traffic evaluating device may determine topology information of the broadband network according to the system architecture diagram of the broadband network shown in fig. 6.

The data transmission mode among all nodes of the target network comprises the following steps: the method comprises the following steps of a transmission mode between the BRAS and the OLT, a transmission mode of an uplink port of the OLT, a transmission mode of a PON port of the OLT and a transmission mode of the MDU.

Wherein, the transmission mode between the BRAS and the OLT comprises: the BRAS is connected with the OLT through the integrated access switch LSW, and the BRAS is not connected with the OLT through the integrated access switch LSW.

The transmission mode of the OLT upper connection port comprises the following steps: each upper connection port transmits preset type services, each upper connection port transmits any type services, cold and hot equipment protection is arranged between the upper connection ports of the OLT, cold and hot equipment protection is not arranged between the upper connection ports of the OLT, load balancing is carried out between the upper connection ports, and load balancing is not carried out between the upper connection ports.

The transmission modes of the OLT PON port comprise a multicast mode and a unicast mode.

The transmission mode of the MDU comprises a multicast mode and a unicast mode.

The sub-service special purpose means that each OLT transmits service data of a preset type. For example, the uplink port 1 transmits video and voice service data, the uplink port 2 transmits download service data, and the uplink port 3 transmits other service data except for video, voice, and download service data.

The cold and hot spare protection is that one part of the plurality of OLT upper connecting ports is in a working state, and the other part of the plurality of OLT upper connecting ports is in a standby state. The upper connection port in the standby state does not work at ordinary times, and when the upper connection port in the working state fails or the load is overlarge, the upper connection port in the standby state starts to work.

The load balancing is carried out among a plurality of uplink ports, and each uplink port bears service downlink flow with similar size. For example, 4 uplink ports with the same nominal capacity of the port are in a working state, and each uplink port carries downlink traffic with the size of 25% of the total service downlink traffic.

It should be noted that, the downstream traffic distribution relationship between the upstream ports of the OLT at present is generally as follows: the method has the advantages of no special service, no cold and hot backup protection and load balance.

It should be noted that, in the broadband service, three types of services are included, which are respectively: fiber To The Home (FTTH) subscribers, Fiber To The Building (FTTB) subscribers, and private line subscribers. The traffic transmission paths for different types of traffic are different. The following description is made separately.

1. FTTH user

In the FTTH user, the data stream in the target service comprises an on-demand data stream, a live data stream and a broadband internet data stream.

Wherein, 1.1, the service path of the on-demand data flow is: content Delivery Network (CDN) server-BRAS-LSW (optional) -OLT add-on-port-OLT backplane-OLT main control board-OLT backplane-OLT PON port-optical splitter-HGU/SFU device PON port-HGU/Single Family Unit (SFU) port-set-top box-Television (TV).

1.2, the service path of the live data stream is as follows: core Router (CR) -BRAS-LSW (optional) -OLT upper connection port-OLT back plate-OLT main control plate-OLT back plate-OLT PON port-OLT splitter-HGU/SFU equipment PON port-HGU/SFU port-set-top box-TV.

It should be noted that, in the LSW, the main control board of the OLT, and the MDU, for the live broadcast service, a sink mode for configuring point-to-multipoint (P2 MP) multicast replication may be selected, including: full sink, hotspot sink, and click sink.

The explanation will be made by configuring P2MP multicast replication in the OLT main control board.

The live data stream is usually a television program played by a television station because the programs have playing consistency. I.e. the program content in the channel viewed at the same time is consistent regardless of the user. According to the characteristics, when the BRAS issues the live broadcast data stream to the OLT, the whole amount of live broadcast data stream can be issued to the OLT uniformly, and when the user equipment requests the corresponding live broadcast data stream (such as beijing satellite television), the OLT main control board copies the live broadcast data stream (beijing satellite television) and sends the copied live broadcast data stream (beijing satellite television) to the user equipment. Therefore, the BRAS and the OLT only need to send a full amount of live broadcast data stream once, and the watching requirement of the live broadcast program of the user can be met through P2MP multicast copy carried out on the OLT main control board, so that the network bandwidth between the BRAS and the OLT is saved.

The P2MP multicast replication in the LSW and MDU is similar to that in the OLT and will not be described here.

The live data stream is generally an IPTV service in a broadband network, and as shown in fig. 7, is a service flow diagram of an IPTV service provided in this embodiment of the present application. The downstream live data stream of IPTV is transmitted from right to left in the nodes of fig. 7. The upstream data stream of IPTV is transmitted from left to right in the nodes of fig. 7.

1.3, the service path of the broadband internet data stream is as follows: CR-BRAS-LSW (optional) -OLT add-drop-OLT backplane-OLT main control board-OLT backplane-OLT PON port-splitter-HGU/SFU device PON port-HGU/SFU port-Personal Computer (PC).

2. FTTB user

2.1, CDN-BRAS-LSW-OLT upper connection port-OLT backboard-OLT main control board-OLT backboard-OLT PON port-optical splitter-MDU equipment PON port-Customer Premise Equipment (CPE) port-set-top box-TV.

2.2, CR-BRAS-LSW (optional) -OLT upper connection port-OLT backboard-OLT main control board-OLT backboard-OLTPON port-optical splitter-MDU equipment PON port-CPE port-set-top box-TV.

2.3, CR-BRAS-LSW (optional) -OLT upper connection port-OLT backboard-OLT main control board-OLT backboard-OLTPON port-optical splitter-MDU equipment PON port-CPE-PC.

3. Private line subscriber

SR/BRAS-LSW (optional) -OLT upper connection port-OLT backboard-OLT main control board-OLT backboard-OLT PON port-optical splitter-HGU/SFU/MDU equipment PON port- (MDU-CPE)/(HGU/SFU).

S1022, the network flow evaluation device establishes the flow pressure link tree of the target network according to the node information of the target network, the network topology information and the data transmission mode among all the nodes.

In a possible implementation manner, in a case where the target network is a broadband network, the traffic link tree of the broadband network includes a downlink traffic link tree and an uplink traffic link tree. As shown in fig. 8, a downlink traffic link tree established in the embodiment of the present application is shown. As shown in fig. 12, the uplink traffic link trees established in the embodiment of the present application are described below.

First, downstream traffic link tree

As shown in fig. 8, a process of establishing a downlink traffic link tree by the apparatus for evaluating network traffic provided in the embodiment of the present application is specifically:

s102a, the device for evaluating network traffic determines the downlink traffic of the target service carried by each BRAS in the broadband network.

It should be noted that the downlink traffic of the target service carried by the BRAS is determined according to the downlink traffic test value of the target service and the number of the target services carried by the BRAS. Wherein, the live data stream may adopt a transmission mode of P2MP multicast replication. Therefore, the network traffic evaluation device respectively calculates the downstream traffic of the live broadcast data stream carried by the BRAS and the downstream traffic of the non-live broadcast data stream (on-demand broadband internet access).

The calculation method of the live broadcast data stream of the target service carried by the BRAS is as follows: and the network flow evaluation device determines the downlink flow generated by each user watching the live broadcast and corresponds to the MDU. The network flow evaluation device judges whether the MDU adopts a P2MP multicast replication mode to replicate the live broadcast data stream, if so, the network flow evaluation device determines that the live broadcast data stream between the MDU and an OLTPON port is one; if not, the number of the live broadcast data streams between the MDU and the OLT PON port is p. p is the number of users watching the live broadcast under the MDU, and p is a positive integer. The network flow evaluation device sequentially determines the downstream flow of the live data flow between the OLT PON port and the OLT uplink port, the downstream flow of the live data flow between the OLT uplink port and the LSW, and the downstream flow of the live data flow between the LSW and the BRAS in the same way. And the finally determined downstream traffic of the live broadcast data stream between the LSW and the BRAS is used as the downstream traffic of the live broadcast data stream carried by the BRAS by the network traffic evaluating device.

The downstream flow of the non-live stream of the target service borne by the BRAS is determined according to the product of the number of the target services borne by the BRAS and the downstream flow test value of the target services.

S102b, the network traffic evaluating device determines the downlink traffic of the target traffic carried by each LSW.

The way of determining the number of the target services carried by the LSW by the network traffic evaluating device is similar to the way of determining the number of the target services carried by the BRAS by the network traffic evaluating device, and details are not repeated here.

Note that LSW has a parameter for determining whether or not P2MP multicast replication is performed. When the LSW performs P2MP multicast replication, there are 1 live data streams between the LSW and the BRAS. When the LSW does not perform P2MP multicast copy, the number of live data streams between the LSW and the BRAS is z, z is the number of users watching live data under the LSW, and z is a positive integer.

S102c, the network traffic evaluating device determines the downstream traffic of the target service carried by each OLT.

The way of determining the number of the target service carried by the OLT by the network traffic evaluation device is similar to the way of determining the number of the target service carried by the BRAS by the network traffic evaluation device, and details are not repeated here.

It should be noted that, as shown in fig. 9, fig. 9 shows a hardware configuration diagram of the OLT apparatus. After the network traffic evaluation device determines the downlink traffic of the target service carried by the OLT, the network traffic evaluation device determines the downlink traffic of the target service in each uplink port of the OLT, the downlink traffic of the target service in the OLT main control board, the downlink traffic of the target service in the OLT backplane, and the downlink traffic of the target service in the OLT PON port, which are described below.

1. OLT upper connection port

The OLT uplink port is a port for connecting the OLT with the uplink equipment (LSW or BRAS). An OLT typically includes a plurality of upstream ports that sum downstream traffic to a total downstream traffic in the OLT.

The network flow evaluation device firstly determines the downlink flow distribution relation between the uplink ports of the OLT. The downlink flow distribution relationship between the uplink ports of the OLT comprises the following steps: whether business is dedicated, whether cold and hot backup protection is set, and whether load balancing is performed.

2. OLT back plate

The downlink flow in the OLT back plate is the sum of the downlink flows of the uplink ports of the OLT.

3. OLT main control board

The OLT main control board is configured with parameters for performing P2MP multicast replication. The method for determining the number of live data streams in the OLT main control board by the network traffic evaluation device is similar to the method for determining the number of live data streams in the LSW by the network traffic evaluation device, and details are not repeated here.

4. OLT PON port

The way of determining the number of the target services carried by the OLT PON port by the network traffic evaluation device is similar to the way of determining the number of the target services carried by the BRAS by the network traffic evaluation device, and details are not repeated here.

S102d, the evaluation device of the network traffic determines the port number of the optical splitter.

It should be noted that the port number of the optical splitter is the number of target service users in the FTTH access mode that the optical splitter can carry. And when the number of the ports of the optical splitter is less than the planned number of target service users which need to be carried by the optical splitter, determining to expand the optical splitter by the network traffic evaluation device.

S102e, the network traffic evaluation device determines the type of the equipment connected with the optical splitter.

In the FTTH type broadband network, the equipment connected with the optical splitter in the downstream is HGU or SFU, and in the FTTB type broadband network, the equipment connected with the optical splitter in the downstream is MDU. In a dedicated line type broadband network, the downstream equipment of the optical splitter may be either an HGU or an SFU or an MDU.

The operations performed by the network traffic evaluation device are different when the devices connected to the optical splitter are different, and will be described below.

I, the equipment connected with the optical splitter is MDU

In the case where the device connected downstream of the optical splitter is an MDU, the network traffic evaluation device executes S102 f.

S102f, the network traffic evaluating device determines the downlink traffic of the target service carried by each MDU.

The way of determining the number of the target services carried by the MDU by the network traffic evaluation device is similar to the way of determining the number of the target services carried by the BRAS by the network traffic evaluation device, and details are not repeated here.

Exemplarily, as shown in fig. 10, a hardware structure diagram of an MDU provided in the embodiment of the present application is shown. The MDU is configured with a parameter for performing P2MP multicast replication. The method for determining the number of live data streams in the MDU by the network traffic evaluation device is similar to the method for determining the number of live data streams in the LSW by the network traffic evaluation device, and is not described herein again.

II, the optical splitter lower-connection equipment is HGU or SFU

In the case where the device connected downstream from the optical splitter is an HGU or an SFU, the network traffic evaluation apparatus performs S102 g.

S102g, the network traffic evaluating device determines the downstream traffic of the target service carried by each HGU or SFU.

In a possible implementation manner, the downlink traffic of the target service carried by each HGU or SFU is equal to the downlink traffic test value of the target service.

Exemplarily, as shown in fig. 11, a hardware structure diagram of an HGU provided in an embodiment of the present application is shown.

Based on the technical scheme, the network flow evaluation device constructs a downlink flow pressure link tree of the broadband network. According to the downlink traffic pressure link tree, the network traffic evaluation device can determine the downlink traffic of each node of the broadband network when one or more target services are configured in the broadband network, so that the accurate evaluation of the broadband network is realized, and effective support is provided for planning and expanding the broadband network.

Two, uplink traffic link tree

As shown in fig. 12, a process of establishing an uplink traffic link tree by the network traffic evaluation device according to the embodiment of the present application is specifically:

s102h, the network traffic evaluating device determines the upstream traffic of the target service carried by each HGU/SFU or each MDU.

And the value of the uplink flow of the target service borne by the HGU/SFU is the uplink flow test value of the target service.

And the uplink flow value of the target service borne by the MDU is determined according to the product of the number of the target services borne by the BRAS and the uplink flow test value of the target service.

It should be noted that the uplink traffic generated by the live video stream generally includes only a few signaling messages such as a program acquisition instruction, and therefore, the uplink traffic generated by the live video stream can be ignored. Therefore, the upstream traffic value of the node is not affected by the multicast replication of P2 MP.

S102i, the network traffic evaluating device determines the number of ports of each optical splitter.

S102j, the network traffic evaluating device determines the uplink traffic of the target service carried by each OLT.

In a possible implementation manner, the network traffic evaluation device determines that the uplink traffic of the target service carried by the OLT is a product of the number of the target services carried by the OLT and an uplink traffic test value of the target service.

It should be noted that, after the network traffic evaluation device determines the uplink traffic of the target service carried by the OLT, the network traffic evaluation device determines the uplink traffic of the target service in each uplink port of the OLT, the uplink traffic of the target service in the OLT main control board, the uplink traffic of the target service in the OLT backplane, and the uplink traffic of the target service in the OLT PON port, respectively. The specific implementation process is similar to the implementation process in S102c described above, and is not described here again.

S102k, the network traffic evaluating device determines the uplink traffic of the target service carried by each LSW.

In a possible implementation manner, the network traffic evaluation device determines that the uplink traffic of the target service borne by the LSW is a product of the number of the target services borne by the LSW and an uplink traffic test value of the target service.

S102m, the evaluating device of network traffic determines the uplink traffic of the target service carried by each BRAS.

The implementation process of S102m is similar to that of S102k, and is not described here again.

Based on the technical scheme, the network flow evaluation device constructs an uplink flow pressure link tree of the broadband network. According to the uplink traffic pressure link tree, the network traffic evaluation device can determine the uplink traffic of each node of the broadband network when one or more target services are configured in the broadband network, so that the accurate evaluation of the broadband network is realized, and effective support is provided for planning and expanding the broadband network.

Based on the technical solution shown in fig. 5, as shown in fig. 13, after S103, the technical solution provided in the embodiment of the present application further includes:

for any of the respective nodes, the evaluation means of the network traffic performs the following S104-S107.

S104, the evaluation device of the network flow determines the flow bearing value of the node.

The traffic bearing value is used for representing the size of traffic which can be borne by the service.

In a possible implementation, the traffic carrying value of a node is a fixed parameter of the node, and is related to the performance of the node, and the available nominal capacity or the maximum throughput determined through actual tests for the hardware port. The traffic carrying value of a node is usually the maximum traffic that the node can carry, or the product of the maximum traffic that the node can carry and a preset proportion (e.g. 80%).

For example, if the maximum traffic that can be carried by one uplink port of the OLT is 1Gb/s, the traffic carrying value of the OTL uplink port is 1Gb/s (or 1Gb/s × 80%, which is about 800 Mb/s).

S105, the network traffic evaluation device determines whether the traffic bearing value of the node is larger than or equal to the traffic evaluation value of the node.

Since whether or not the traffic bearer value of a node is equal to or greater than the traffic evaluation value of the node affects the actions performed by the evaluation means of the network traffic, the following description is made separately.

And I, when the traffic evaluation value of the node is larger than or equal to the traffic bearing value of the node, the evaluation device of the network traffic executes S106.

And S106, determining the capacity expansion scheme of the node by the network flow evaluation device according to the flow bearing value of the node and the flow evaluation value of the node.

That is, in the case that the traffic evaluation value of the node is greater than or equal to the traffic bearer value of the node, the network traffic evaluation device determines that the node needs to be expanded. Further, the network traffic evaluation device determines the capacity expansion scheme of the node according to the traffic load value of the node and the traffic evaluation value of the node.

It can be understood that the fact that the traffic evaluation value of the node is greater than or equal to the traffic bearer value of the node means that if the one or more target services are opened in the target network, the traffic carried by the node may be greater than the traffic that can be carried by the node in normal operation. If the node is not expanded, the traffic pressure of the node may be too high to work normally, or normal transmission of the target service may not be completed. At this time, the node needs to be expanded. The expected capacity expansion size of the node may be determined according to the traffic bearer value of the node and the traffic assessment value of the node.

And II, in the case that the traffic evaluation value of the node is smaller than the traffic bearing value of the node, the evaluation device of the network traffic executes S107.

And S107, determining that the node is not expanded by the network flow evaluation device.

That is to say, when the traffic evaluation value of the node is smaller than the traffic carrying value of the node, the network traffic evaluation device determines that the node can carry the one or more target services without performing capacity expansion.

Based on the above technical solution, in the embodiment of the present application, the device for evaluating network traffic combines the traffic evaluation value and the traffic carrying value of each node to determine that the node can normally carry the target service after the one or more target services are opened in the target network. And under the condition that the target service cannot be carried, generating a capacity expansion scheme aiming at the node. Thus, the method for evaluating network traffic provided by the embodiment of the application can accurately determine that each node in the network can bear one or more target services. And generating a capacity expansion scheme aiming at each node, and accurately setting the capacity expansion scheme to each node in the network. The support capability for network capacity expansion and planning is greatly improved.

In the embodiment of the present application, the evaluation apparatus of network traffic may be divided into the functional modules or the functional units according to the above method examples, for example, each functional module or functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module may be implemented in a form of hardware, or may be implemented in a form of a software functional module or a functional unit. The division of the modules or units in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation.

As shown in fig. 14, a schematic structural diagram of an apparatus for evaluating network traffic provided in an embodiment of the present application is shown, where the apparatus includes: a processing unit 201 and a communication unit 202.

A processing unit 201, configured to determine a traffic reference value of one or more target services. The target traffic is traffic in the target network. The flow reference value of the target service is used for representing the network flow condition used when the target service is transmitted in the target network.

For example, in conjunction with fig. 4, the processing unit 201 may also be configured to execute S101.

The processing unit 201 is further configured to determine a traffic pressure link tree of the target network. And the traffic pressure link tree of the target network is used for evaluating the traffic evaluation value of each node of the target network. The traffic evaluation value is used for characterizing the traffic of the target service carried by the node.

For example, in conjunction with fig. 4, the processing unit 201 may also be configured to execute S102.

And the processing unit 201 is further configured to input the traffic reference values of the one or more target services into the traffic pressure link tree of the target network, and determine the traffic evaluation values of the nodes of the target network.

For example, in conjunction with fig. 4, the processing unit 201 may also be configured to execute S103.

Optionally, the communication unit 202 is configured to obtain node information of the target network, network topology information, and a data transmission manner between nodes.

For example, in conjunction with fig. 4, the communication unit 202 may also be configured to perform S1021.

The processing unit 201 is further configured to establish a traffic pressure link tree of the target network according to the node information of the target network, the network topology information, and the data transmission manner between the nodes.

For example, in conjunction with fig. 4, processing unit 201 may also be configured to perform S1022.

Optionally, in a case that the target network is a broadband network, the node information of the target includes: the system comprises service source node information, broadband access server BRAS information, optical line terminal OLT information, multi-dwelling unit MDU information and home gateway unit HGU information.

Optionally, the data transmission mode between each node of the broadband network includes: the method comprises the following steps of a transmission mode between the BRAS and the OLT, a transmission mode of an uplink port of the OLT, a transmission mode of a PON port of the OLT and a transmission mode of the MDU. The transmission mode between the BRAS and the OLT comprises the following steps: the BRAS is connected with the OLT through the integrated access switch LSW, and the BRAS is not connected with the OLT through the integrated access switch LSW. The transmission mode of the OLT upper connection port comprises the following steps: each upper connection port transmits preset type services, each upper connection port transmits any type services, cold and hot equipment protection is arranged between the upper connection ports of the OLT, cold and hot equipment protection is not arranged between the upper connection ports of the OLT, load balancing is carried out between the upper connection ports, and load balancing is not carried out between the upper connection ports. The transmission modes of the OLT PON port comprise a multicast mode and a unicast mode. The transmission mode of the MDU comprises a multicast mode and a unicast mode.

Optionally, the processing unit 201 is further configured to determine any node in the nodes. And determining the traffic bearing value of the node. The traffic bearing value is used for representing the size of the traffic which can be borne by the service.

For example, in conjunction with fig. 13, the processing unit 201 may also be configured to execute S104.

The processing unit 201 is further configured to determine whether the traffic bearer value of the node is greater than or equal to the traffic evaluation value of the node.

For example, in conjunction with fig. 13, the processing unit 201 may also be configured to execute S105.

The processing unit 201 is further configured to determine an expansion scheme of the node according to the traffic bearer value of the node and the traffic evaluation value of the node when the traffic evaluation value of the node is greater than or equal to the traffic bearer value of the node.

For example, in conjunction with fig. 13, the processing unit 201 may also be configured to execute S106.

Fig. 15 is a schematic structural diagram of a chip 170 according to an embodiment of the present disclosure. Chip 170 includes one or more (including two) processors 1710 and a communication interface 1730.

Optionally, the chip 170 further includes a memory 1740, where the memory 1740 may include both read-only memory and random access memory, and provides operational instructions and data to the processor 1710. A portion of memory 1740 may also include non-volatile random access memory (NVRAM).

In some embodiments, memory 1740 stores elements, execution modules, or data structures, or a subset thereof, or an expanded set thereof.

In the embodiment of the present application, the corresponding operation is performed by calling an operation instruction stored in the memory 1740 (the operation instruction may be stored in an operating system).

The processor 1710 may implement or execute various illustrative logical blocks, units, and circuits described in connection with the disclosure herein. The processor may be a central processing unit, general purpose processor, digital signal processor, application specific integrated circuit, field programmable gate array or other programmable logic device, transistor logic device, hardware component, or any combination thereof. Which may implement or perform the various illustrative logical blocks, units, and circuits described in connection with the disclosure. The processor may also be a combination of computing functions, e.g., comprising one or more microprocessors, DSPs, and microprocessors, among others.

Memory 1740 may include volatile memory, such as random access memory; the memory may also include non-volatile memory, such as read-only memory, flash memory, a hard disk, or a solid state disk; the memory may also comprise a combination of memories of the kind described above.

The bus 1720 may be an Extended Industry Standard Architecture (EISA) bus or the like. Bus 1720 may be divided into an address bus, a data bus, a control bus, and the like. For ease of illustration, only one line is shown in FIG. 15, but it is not intended that there be only one bus or one type of bus.

Through the above description of the embodiments, it is clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be completed by different functional modules according to needs, that is, the internal structure of the device may be divided into different functional modules to complete all or part of the above described functions. For the specific working processes of the system, the apparatus and the unit described above, reference may be made to the corresponding processes in the foregoing method embodiments, and details are not described here again.

The present application provides a computer program product containing instructions, which when run on a computer, causes the computer to execute the method for evaluating network traffic in the above method embodiments.

The embodiment of the present application further provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and when the instructions are run on a computer, the computer is caused to execute the method for evaluating network traffic in the method flow shown in the foregoing method embodiment.

The computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a Read-Only Memory (ROM), an Erasable Programmable Read-Only Memory (EPROM), a register, a hard disk, an optical fiber, a portable Compact Disc Read-Only Memory (CD-ROM), an optical storage device, a magnetic storage device, any suitable combination of the above, or any other form of computer readable storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an Application Specific Integrated Circuit (ASIC). In embodiments of the present application, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.

Embodiments of the present invention provide a computer program product comprising instructions which, when run on a computer, cause the computer to perform a method of assessing network traffic as described in fig. 4, fig. 5, fig. 8, fig. 12 and fig. 13.

Since the network traffic evaluation apparatus, the computer-readable storage medium, and the computer program product in the embodiments of the present invention may be applied to the method described above, reference may also be made to the method embodiments for obtaining technical effects, and the embodiments of the present invention are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus, and method may be implemented in other ways. For example, the above-described device embodiments are merely illustrative, and for example, the division of the units is only one logical functional division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The above is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. An evaluation method of network traffic, the evaluation method comprising:

determining a flow reference value of one or more target services; the target service is a service in a target network; the flow reference value of the target service is used for representing the network flow condition used when the target service is transmitted in the target network;

determining a traffic pressure link tree of a target network; the traffic pressure link tree of the target network is used for evaluating the traffic evaluation value of each node of the target network; the traffic evaluation value is used for representing the traffic of a target service borne by the node;

and inputting the flow reference values of the one or more target services into a flow pressure link tree of the target network, and determining flow evaluation values of all nodes of the target network.

2. The evaluation method of claim 1, wherein the determining the traffic pressure link tree of the target network comprises:

acquiring node information, network topology information and a data transmission mode among all the nodes of the target network;

3. The evaluation method according to claim 2, wherein in the case where the target network is a broadband network, the node information of the target includes: the system comprises service source node information, broadband access server BRAS information, optical line terminal OLT information, multi-dwelling unit MDU information and home gateway unit HGU information.

4. The evaluation method according to claim 3, wherein the data transmission mode between the nodes of the broadband network comprises: the method comprises the following steps of a transmission mode between a BRAS and an OLT, a transmission mode of an uplink port of the OLT, a transmission mode of a PON port of the OLT and a transmission mode of an MDU;

wherein, the transmission mode between the BRAS and the OLT comprises: the BRAS is connected with the OLT through a comprehensive access switch LSW, and the BRAS is not connected with the OLT through the comprehensive access switch LSW;

the transmission mode of the OLT upper connection port comprises the following steps: each upper connection port transmits a preset type of service, each upper connection port transmits any type of service, cold and hot equipment protection is arranged between the upper connection ports of the OLT, cold and hot equipment protection is not arranged between the upper connection ports of the OLT, load balancing is carried out between the upper connection ports, and load balancing is not carried out between the upper connection ports;

the transmission mode of the OLT PON port comprises a multicast mode and a unicast mode;

the transmission mode of the MDU comprises a multicast mode and a unicast mode.

5. The evaluation method according to any one of claims 1 to 4, wherein after the determining the traffic evaluation values of the respective nodes of the target network, the method further comprises:

for any of the respective nodes; determining a traffic bearing value of the node; the traffic bearing value is used for representing the size of traffic which can be borne by the service;

determining whether the traffic bearing value of the node is greater than or equal to the traffic evaluation value of the node;

and under the condition that the traffic evaluation value of the node is greater than or equal to the traffic bearing value of the node, determining an expansion scheme of the node according to the traffic bearing value of the node and the traffic evaluation value of the node.

6. An apparatus for evaluating network traffic, the apparatus comprising:

a processing unit for determining a flow reference value of one or more target services; the target service is a service in a target network; the flow reference value of the target service is used for representing the network flow condition generated when the target service is transmitted in the target network;

the processing unit is further configured to determine a traffic pressure link tree of the target network; the traffic pressure link tree of the target network is used for evaluating the traffic evaluation value of each node of the target network; the traffic evaluation value is used for representing the traffic of a target service borne by the node;

the processing unit is further configured to input the traffic reference values of the one or more target services into a traffic pressure link tree of the target network, and determine a traffic evaluation value of each node of the target network.

7. The evaluation device of claim 6, further comprising a communication unit;

the communication unit is used for acquiring node information of the target network, network topology information and a data transmission mode among all the nodes;

the processing unit is further configured to establish a traffic pressure link tree of the target network according to the node information of the target network, the network topology information, and the data transmission manner among the nodes.

8. The evaluation apparatus according to claim 7, wherein in a case where the target network is a broadband network, the node information of the target includes: the system comprises service source node information, broadband access server BRAS information, optical line terminal OLT information, multi-dwelling unit MDU information and home gateway unit HGU information.

9. The evaluation device of claim 8, wherein the data transmission means between the nodes of the broadband network comprises: the method comprises the following steps of a transmission mode between a BRAS and an OLT, a transmission mode of an uplink port of the OLT, a transmission mode of a PON port of the OLT and a transmission mode of an MDU;

the transmission mode of the MDU comprises a multicast mode and a unicast mode.

10. The evaluation device of any one of claims 6-9, wherein the processing unit is further configured to:

11. An apparatus for evaluating network traffic, comprising: a processor and a communication interface; the communication interface is coupled to the processor for executing a computer program or instructions for implementing the method of evaluating network traffic as claimed in any of claims 1-5.

12. A computer-readable storage medium having instructions stored therein, wherein the instructions, when executed by a computer, cause the computer to perform the method for network traffic assessment of any of the preceding claims 1-5.