WO2021012601A1 - Dispositif et procédé de traitement de message, appareil et support d'informations lisible - Google Patents

Dispositif et procédé de traitement de message, appareil et support d'informations lisible Download PDF

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Publication number
WO2021012601A1
WO2021012601A1 PCT/CN2019/126996 CN2019126996W WO2021012601A1 WO 2021012601 A1 WO2021012601 A1 WO 2021012601A1 CN 2019126996 W CN2019126996 W CN 2019126996W WO 2021012601 A1 WO2021012601 A1 WO 2021012601A1
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message
target
pipeline
control message
container
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PCT/CN2019/126996
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English (en)
Chinese (zh)
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丁瑞
卢华
朱伏生
张继栋
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广东省新一代通信与网络创新研究院
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Publication of WO2021012601A1 publication Critical patent/WO2021012601A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00—Packet switching elements
    • H04L49/70—Virtual switches

Definitions

  • the present invention relates to the field of communication technology, and in particular to a message processing method, device, equipment and readable storage medium.
  • programmable switches have been greatly applied in cloud data centers, network slicing, etc. They have the ability to flexibly define the data processing flow of forwarding equipment and are independent of the forwarding equipment protocol. Features such as forwarding and device independence.
  • the change process of traditional network equipment is usually when the user finds that the current equipment of the network service deployment cannot be supported, the demand is fed back to the equipment manufacturer. The equipment manufacturer will consider the user’s purchase scale, whether the hardware supports the function, etc. It takes months or even years to release a solution, which cannot meet the requirements of rapid business iteration in the Internet era.
  • the interfaces in the existing switches are often not fully utilized due to various reasons, and there is a lot of waste. Therefore, how to improve the utilization rate of programmable switches has become a technical problem to be solved urgently.
  • the main purpose of the present invention is to provide a message processing method, device, equipment, and readable storage medium, which aims to solve the technical problem of how to improve the utilization rate of the programmable switch.
  • the present invention provides a message processing method, the message processing method includes:
  • the control message is sent from the target pipeline where the control message is located to the target container, so that the target container can perform protocol processing on the control message, wherein
  • the target container is a container where the virtual interface corresponding to the target pipeline where the control message is located is located.
  • the method includes:
  • the forwarding table on the target pipeline where the business message is located is obtained, and based on the forwarding table, the business message is placed on the target pipeline where the business message is located.
  • the target pipeline is issued.
  • the step of sending the service message in the target pipeline where the service message is located based on the forwarding table includes:
  • the step of sending the control message from the target pipeline where the control message is located to the target container includes:
  • the control message is sent from the target pipeline where the control message is located to the CPU interface, and the control message is delivered to the target container through the CPU interface.
  • the step of sending the control message from the target pipeline where the control message is located to the CPU interface, and transferring the control message to the target container through the CPU interface includes:
  • the control message is sent from the target physical port to the CPU interface, and the control message is transferred to the virtual interface corresponding to the target physical port through the CPU interface, and the target physical port corresponds to The virtual interface of the transfer the control message to the target container.
  • the present invention also provides a message processing device, the message processing device includes:
  • a mapping module which is used to map the physical ports of each pipeline planned in advance to a virtual interface, and add the virtual interface to the container corresponding to the virtual interface;
  • the detection module is used to determine the target pipeline of the received message in each of the pipelines, and detect whether the message in each of the target pipelines is a control message, wherein the message includes a control message and a service message Text
  • the sending module is configured to send the control message from the target pipeline where the control message is located to the target container if the message is a control message, so that the target container can respond to the control message Protocol processing is performed, wherein the target container is a container where the virtual interface corresponding to the target pipeline where the control message is located is located.
  • the message processing device further includes:
  • the acquiring module is configured to, if the message in the target pipeline is a business message, acquire the forwarding table of the target pipeline where the business message is located, and place the business message in the forwarding table based on the forwarding table.
  • the target pipeline where the business message is located is sent out.
  • the message processing device further includes:
  • the sending module is configured to obtain routing information corresponding to the service message in the forwarding table, and send the service message from the target pipeline where the service message is located according to the routing information.
  • the present invention also provides a message processing device
  • the message processing device includes: a memory, a processor, and a computer program stored on the memory and running on the processor, wherein:
  • the present invention also provides a computer storage medium
  • a computer program is stored on the computer storage medium, and when the computer program is executed by a processor, the steps of the message processing method described above are realized.
  • the present invention maps the physical ports of each pipeline planned in advance to virtual interfaces, and adds the virtual interface to the container corresponding to the virtual interface; determines the target pipeline that receives the message in each pipeline, and detects Whether the message in each target pipeline is a control message, where the message includes a control message and a service message; if the message is a control message, the control message is sent from all
  • the target pipeline in which the control message is located is sent to a target container for the target container to perform protocol processing on the control message, wherein the target container is the virtual interface corresponding to the target pipeline in which the control message is located The container it is in.
  • a programmable switch By first mapping the physical ports on each pipeline to a virtual interface when receiving a message, and when the target pipeline receives the message, and when it is determined that the message is a control message, the control message is sent to the target container .
  • a programmable switch can be virtualized into multiple logical switches, so that users do not need to purchase any additional services or products, which greatly improves the utilization rate of the switch itself, and also brings convenience to the network design.
  • Multiple network functions can be deployed in fusion, which greatly reduces the user's capital expenditure and operating costs, and solves the technical problem of low utilization of programmable switches in the prior art.
  • Figure 1 is a schematic diagram of the terminal ⁇ device structure of the hardware operating environment involved in the solution of the embodiment of the present invention
  • FIG. 3 is a schematic diagram of functional modules of the message processing device of the present invention.
  • FIG. 4 is a physical structure diagram of the programmable switch of the message processing method of the present invention.
  • Figure 5 is an internal schematic diagram of the programmable switch of the message processing method of the present invention.
  • Fig. 6 is a schematic flowchart of a message processing method of the present invention.
  • Figure 7 is an application scenario diagram of the message processing method of the present invention.
  • Fig. 8 is a schematic diagram of a scene of a message processing method of the present invention.
  • Fig. 1 is a schematic diagram of a terminal structure of a hardware operating environment involved in a solution of an embodiment of the present invention.
  • the terminal in the embodiment of the present invention is an electronic device.
  • the terminal may include a processor 1001, such as a CPU, a network interface 1004, a user interface 1003, a memory 1005, and a communication bus 1002.
  • the communication bus 1002 is used to implement connection and communication between these components.
  • the user interface 1003 may include a display screen (Display) and an input unit such as a keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface and a wireless interface.
  • the network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a WI-FI interface).
  • the memory 1005 may be a high-speed RAM memory, or a non-volatile memory (non-volatile memory), such as a magnetic disk memory.
  • the memory 1005 may also be a storage device independent of the foregoing processor 1001.
  • the terminal may also include a camera, an RF (Radio Frequency) circuit, a sensor, an audio circuit, a WiFi module, and so on.
  • sensors such as light sensors, motion sensors and other sensors.
  • the light sensor may include an ambient light sensor and a proximity sensor, where the ambient light sensor can adjust the brightness of the display screen according to the brightness of the ambient light, and the proximity sensor can turn off the display screen and/or when the terminal device is moved to the ear Backlight.
  • the terminal device can also be equipped with other sensors such as gyroscope, barometer, hygrometer, thermometer, infrared sensor, etc., which will not be repeated here.
  • terminal structure shown in FIG. 1 does not constitute a limitation on the terminal, and may include more or fewer components than shown in the figure, or combine some components, or arrange different components.
  • a memory 1005 as a computer storage medium may include an operating system, a network communication module, a user interface module, and a message processing program.
  • the network interface 1004 is mainly used to connect to the back-end server and communicate with the back-end server;
  • the user interface 1003 is mainly used to connect to the client (user side) and communicate with the client;
  • the processor 1001 can be used to call the message processing program stored in the memory 1005 and perform the following operations:
  • the control message is sent from the target pipeline where the control message is located to the target container, so that the target container can perform protocol processing on the control message, wherein
  • the target container is a container where the virtual interface corresponding to the target pipeline where the control message is located is located.
  • the present invention provides a message processing method.
  • the message processing method includes the following steps:
  • Step S10 Map the physical ports of each pipeline planned in advance to virtual interfaces, and add the virtual interfaces to the containers corresponding to the virtual interfaces;
  • the virtual interface may be a virtual interface after a physical port is mapped.
  • the pipeline that needs to be applied is planned first, and the message to be input and output from the programmable switch is determined, and after planning the various pipelines that need to be applied .
  • the physical ports on these pipelines are mapped to virtual interfaces, and these virtual interfaces are placed in the containers corresponding to the respective pipelines.
  • a pipeline corresponds to only one container, but a container can correspond to multiple pipelines, that is, all virtual interfaces of a pipeline can only be placed in one container, and a container can place all virtual interfaces of multiple pipelines.
  • the interface in a container is fixed to the interface on that assembly line.
  • the role of the container is logical isolation, while the role of the pipeline is physical isolation.
  • the programmable switch can also be divided into two planes: the control plane and the forwarding plane. If you want to achieve one virtual multiple, one physical switch implements multiple logically isolated virtual switches, mainly to implement the control plane Virtualization with forwarding plane. And each pipeline (pipeline) of the programmable chip in the programmable switch can be regarded as an independent forwarding plane. There is a running protocol stack in the container, each container is an independent network name space, and each container can be the control plane of a complete protocol stack.
  • the physical structure of a programmable switch includes a control plane and a forwarding plane.
  • the control plane includes operating system, virtual interface, CPU, container, etc.
  • the forwarding plane includes a programmable chip, a traffic manager, pipeline 1 to pipeline N, and physical ports on each pipeline, and each physical port is divided into inbound and outbound directions.
  • the programmable chip completes the forwarding of data packets by performing "match-action", usually composed of multiple pipelines, each pipeline is divided into ingress (Ingress) and outgoing (Egress), there are multiple pipelines between the incoming and outgoing directions
  • the shared flow management unit is responsible for completing message replication and flow scheduling.
  • Each pipeline can be loaded with different forwarding logic independently.
  • the forwarding logic can be implemented by a specific programming language.
  • a certain port of the switch is fixed to a certain one.
  • the first pipeline is relatively special.
  • a port on the pipeline is connected to the CPU on the local control plane of the switch for sending control messages. This port is a visible interface to the system, similar to an ordinary " Network card", that is, CPU port.
  • the virtual interface is added to the container, and the attribution relationship between the physical port and each pipeline is determined, so the physical port and the virtual interface have a one-to-one correspondence, so each container can correspond to Specific physical port.
  • each container can correspond to Specific physical port.
  • FIG 5 including programmable chips, device drivers, kernels, chip management, protocol agents, control plane 1 to control plane N, there are protocol stacks, protocol plug-ins, virtual interface X, etc. in container 1, and container N There are protocol plug-ins, protocol stacks, virtual interface Y, etc., and each control plane includes a container. Virtualization of the control plane uses containers for lightweight isolation.
  • each container is an independent network name space.
  • Add the required virtual interface to the container so that the control message received from a certain physical port will be received in the container.
  • the routing information is read from the kernel through a protocol plug-in module, and when the routing information changes, the protocol proxy module outside the container is notified to write the forwarding table of the corresponding pipeline outside the container.
  • each pipeline in the programmable chip corresponds to its own
  • the virtual switch that is, pipeline 1 corresponds to virtual switch 1 (that is, control plane 1)
  • pipeline N corresponds to virtual switch N (that is, control plane N)
  • control plane 1 that is, container 1
  • each virtual interface X the control plane N (ie container N) includes a protocol plug-in, a protocol stack, and each virtual interface Y.
  • Step S20 Determine the target pipeline of the received message in each of the pipelines, and detect whether the message in each of the target pipelines is a control message, where the message includes a control message and a service message;
  • the target pipeline may be the pipeline that receives the message.
  • Step S30 if the message is a control message, the control message is sent to the target container from the target pipeline where the control message is located, so that the target container can perform an agreement on the control message Processing, wherein the target container is a container where the virtual interface corresponding to the target pipeline where the control message is located is located.
  • the target container is the container corresponding to the target pipeline. If it is determined that there are control messages in each target pipeline, the control message is passed from the target pipeline where the control message is located to the target container corresponding to the target pipeline, so that the target container can perform the control message on the control message.
  • Protocol processing that is, the protocol stack in the target container performs protocol processing on the control message.
  • each container can be equivalent to a separate virtual switch to implement different protocol processing.
  • the business orchestration module implements the processes of port mapping, forwarding plane initialization, and container creation. For example, as shown in Figure 6.
  • Port mapping is performed according to the service configuration and networking conditions, that is, the physical ports on the pipeline 1 to the pipeline N in the programmable chip are mapped to virtual interfaces, that is, the operation of 1 in the figure. Place each virtual interface in container 1 to container N in turn, and each container runs a protocol stack and a protocol plug-in. Then initialize the forwarding plane where the programmable chip is located. Load the corresponding forwarding logic to the pipeline from the business orchestration, that is, load the forwarding logic 1 to the pipeline 1, and load the forwarding logic N to the pipeline N, which is the operation of 2 in the figure. Then transfer the forwarding logic to the container through the pipeline, that is, the operation in the figure 3, and after the processing in the container is completed, it is output through the pipeline.
  • one pipeline ie pipeline
  • the back-end server selects a consistent hash by stream, similar to a load balancer.
  • the control plane of the access pipeline establishes a neighbor relationship with the external network ingress device through the virtual interface, and at the same time announces routing information for traffic diversion.
  • the back-end service cluster establishes a neighbor relationship with the consistent hash pipeline and announces VIP (ie virtual IP) information.
  • VIP ie virtual IP
  • the consistent hashing pipeline After the consistent hashing pipeline receives the routing announcement, it will form in the local routing table that the same VIP has multiple next hops, and each next hop represents a physical server; it is kept alive through the protocol neighbor relationship Information; if a certain backend server is abnormal, the neighbor relationship will be lost. At this time, there will be one hop less in the routing table, and the protocol plug-in will update the forwarding table of the corresponding pipeline.
  • the access pipeline will establish a neighbor relationship with the consistent hash pipeline through the intranet physical network and announce a specific VIP, which is one of the VIP segments of the cluster and is used for the backhaul of messages.
  • the consistent hash pipeline announces the routing information of the VIP segment to the intranet physical network for traffic diversion.
  • the next hop address information will be queried through the corresponding logic of the control plane, that is, which cluster needs to be sent to, and after the speed limit and billing functions are performed , Encapsulate the message in the tunnel, the outer IP address of the tunnel is the VIP of a certain cluster, and finally sent to the internal physical network.
  • the consistent hashing pipeline performs consistent hashing according to the physical server information under the VIP, thereby selecting a server, and at the same time modifying the outer IP of the tunnel to the address information of the physical server, and sending it to the intranet physical network.
  • the internal physical network finally forwards the message to the corresponding server. Due to the existence of the consistent hashing algorithm, it is guaranteed that when the back-end server is abnormal, only 1/N connections are affected (N is the number of servers in the back-end cluster). At the same time, the consistent hashing algorithm can be selected , Can be well adapted to stateful and stateless applications.
  • the traffic from the physical server is encapsulated with a fixed IP address in the outer layer of the tunnel. This address is the VIP accessing the pipeline, and then sent to the internal physical network.
  • the internal physical network will transfer the traffic to consistency Hash pipeline.
  • the consistent hash pipeline finds the next hop according to the VIP information announced by the access pipeline, and modifies the outer IP of the tunnel to the next hop information, and then sends it to the internal physical network. And after the receiving pipeline receives the outgoing message, it performs decapsulation and sends it to the external network.
  • the physical ports of each pre-planned pipeline are mapped to virtual interfaces, and the virtual interfaces are added to the container corresponding to the virtual interface; the destination of the received message is determined in each pipeline Pipeline, and detect whether the message in each target pipeline is a control message, where the message includes a control message and a service message; if the message is a control message, the control message The message is sent from the target pipeline where the control message is located to a target container for the target container to perform protocol processing on the control message, wherein the target container is corresponding to the target pipeline where the control message is located The container where the virtual interface is located.
  • a programmable switch By first mapping the physical ports on each pipeline to a virtual interface when receiving a message, and when the target pipeline receives the message, and when it is determined that the message is a control message, the control message is sent to the target container .
  • a programmable switch can be virtualized into multiple logical switches, so that users do not need to purchase any additional services or products, which greatly improves the utilization rate of the switch itself, and also brings convenience to the network design.
  • Multiple network functions can be deployed in fusion, which greatly reduces the user's capital expenditure and operating costs, and solves the technical problem of low utilization of programmable switches in the prior art.
  • step S20 of the first embodiment of the present invention After the step of controlling whether the message is a message, it includes:
  • Step a If the message in the target pipeline is a business message, obtain the forwarding table of the target pipeline where the business message is located, and place the business message in the business message based on the forwarding table.
  • the target pipeline where the text is located is issued.
  • the message that is not a control message can be used as a business message, and the transfer on the target pipeline where the business message is located can be obtained.
  • Publish determine the egress port of the target pipeline according to the routing information in the forwarding table, and send business packets from the target pipeline.
  • the forwarding table includes various routing information.
  • each pipeline is provided with its corresponding forwarding table, and in which pipeline a message is received, the message is sent from which pipeline.
  • the service message is directly sent, thereby ensuring the efficiency of the programmable switch message sending.
  • the step of sending the service message in the target pipeline where the service message is located based on the forwarding table includes:
  • Step a1 Obtain routing information corresponding to the service message in the forwarding table, and send the service message from the target pipeline where the service message is located according to the routing information.
  • Each routing information stored in the message table determines the routing information corresponding to the service message, and determines the egress port in the target pipeline according to this routing information, and then sends the business message from the egress port in the target pipeline.
  • the routing information corresponding to the service message is obtained in the forwarding table, and the service message is sent according to the routing information, thereby ensuring the efficiency of the programmable switch message sending.
  • step of sending the control message from the target pipeline where the control message is located to the target container includes:
  • Step b In the target pipeline where the control message is located, obtain the physical port connected to the processor CPU among the physical ports, and use the physical port connected to the CPU as the CPU interface;
  • Step c Send the message from the target pipeline where the control message is located to the CPU interface, and transfer the control message to the target container through the CPU interface.
  • control message can be sent from the target pipeline where the control message is located to the CPU interface, and forwarded to the corresponding virtual interface through the kernel in the CPU, and then the message is passed to the target container through this virtual interface .
  • the step of sending the control message from the target pipeline where the control message is located to the CPU interface and passing the control message to the target container through the CPU interface includes:
  • Step c1 Obtain the target physical port corresponding to the target pipeline where the control message is located, and determine the preset number corresponding to the target physical port, and determine the connection with the target in each virtual interface based on the preset number.
  • each physical interface has a preset number
  • the virtual interface will also have a corresponding number.
  • a sub-interface is established on the interface connected to the CPU, and its id is x; each pipeline needs to be fixed to implement some logic.
  • the tag id is equal to the port number x, and the port can be set as the CPU interface.
  • the kernel will transfer it to the corresponding sub-interface according to the tag id, thus realizing the relationship between the physical port and the virtual interface. Mapping between.
  • the target pipeline obtains the message, first determine whether the message is a control message, and when the message is a control message, determine the physical port of the target pipeline where the control message is located (that is, the target physical port), and According to the preset number corresponding to the ingress port, the virtual interface corresponding to the target physical port is determined in each virtual interface according to the preset number.
  • Step c2 Send the control message from the target physical port to the CPU interface, and transfer the control message to the virtual interface corresponding to the target physical port through the CPU interface, and pass the target The virtual interface corresponding to the physical port transfers the control message to the target container.
  • the control message is sent from the target physical port of the target pipeline where the control message is located to the CPU interface, and the control message is passed to the virtual interface corresponding to the target physical port through the core corresponding to the CPU interface, and the control is controlled through this virtual interface
  • the message is passed to the target container so that the target container can process the control message.
  • the virtual interface is determined by determining the preset number of the target physical port of the target pipeline, and the message is sent to this virtual interface, thereby improving the accuracy of sending the message to the virtual interface.
  • an embodiment of the present invention also provides a message processing device, and the message processing device includes:
  • a mapping module which is used to map the physical ports of each pipeline planned in advance to a virtual interface, and add the virtual interface to the container corresponding to the virtual interface;
  • the detection module is used to determine the target pipeline of the received message in each of the pipelines, and detect whether the message in each of the target pipelines is a control message, wherein the message includes a control message and a service message Text
  • the sending module is configured to send the control message from the target pipeline where the control message is located to the target container if the message is a control message, so that the target container can respond to the control message Protocol processing is performed, wherein the target container is a container where the virtual interface corresponding to the target pipeline where the control message is located is located.
  • the message processing device further includes:
  • the forwarding table on the target pipeline where the business message is located is obtained, and based on the forwarding table, the business message is placed on the target pipeline where the business message is located.
  • the target pipeline is issued.
  • the message processing device further includes:
  • the transfer module is also used to:
  • the control message is sent from the target pipeline where the control message is located to the CPU interface, and the control message is delivered to the target container through the CPU interface.
  • the transfer module is also used to:
  • the control message is sent from the target physical port to the CPU interface, and the control message is transferred to the virtual interface corresponding to the target physical port through the CPU interface, and the target physical port corresponds to The virtual interface of the transfer the control message to the target container.
  • each functional module of the message processing device can refer to the various embodiments of the message processing method of the present invention, which will not be repeated here.
  • the present invention also provides a message processing device.
  • the message processing device includes a memory, a processor, a communication bus, and a message processing program stored on the memory:
  • the communication bus is used to realize connection and communication between the processor and the memory
  • the processor is configured to execute the message processing program to implement the steps of the embodiments of the message processing method described above.
  • the present invention also provides a computer-readable storage medium that stores one or more programs, and the one or more programs may also be executed by one or more processors to implement The steps of each embodiment of the foregoing message processing method.
  • the technical solution of the present invention essentially or the part that contributes to the existing technology can be embodied in the form of a software product, and the computer software product is stored in a storage medium (such as ROM/RAM) as described above. , Magnetic disk, optical disk), including several instructions to make a terminal device (can be a mobile phone, computer, server, air conditioner, or network device, etc.) execute the method described in each embodiment of the present invention.

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Abstract

La présente invention concerne un dispositif et un procédé de traitement de message, un appareil et un support d'informations lisible. Le procédé consiste à : mapper un port physique de chacune des lignes d'assemblage préplanifiées sous forme d'interface virtuelle, et ajouter l'interface virtuelle dans un conteneur correspondant à l'interface virtuelle ; déterminer une ligne d'assemblage cible dans les lignes d'assemblage destinée à recevoir des messages, et détecter si un message dans la ligne d'assemblage cible représente un message de commande, les messages comprenant des messages de commande et des messages de service ; si le message représente un message de commande, envoyer le message de commande de la ligne d'ensemble cible contenant le message de commande vers un conteneur cible de sorte que le conteneur cible effectue un traitement de protocole sur le message de commande, le conteneur cible étant le conteneur dans lequel est située l'interface virtuelle correspondant à la ligne d'ensemble cible contenant le message de commande. La présente invention améliore le taux d'utilisation de commutateurs programmables.
PCT/CN2019/126996 2019-07-19 2019-12-20 Dispositif et procédé de traitement de message, appareil et support d'informations lisible WO2021012601A1 (fr)

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