WO2023061061A1 - Procédé de traitement de message, attache de câble, dispositif et support d'enregistrement - Google Patents

Procédé de traitement de message, attache de câble, dispositif et support d'enregistrement Download PDF

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Publication number
WO2023061061A1
WO2023061061A1 PCT/CN2022/114620 CN2022114620W WO2023061061A1 WO 2023061061 A1 WO2023061061 A1 WO 2023061061A1 CN 2022114620 W CN2022114620 W CN 2022114620W WO 2023061061 A1 WO2023061061 A1 WO 2023061061A1
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WO
WIPO (PCT)
Prior art keywords
message
target
port
line card
target message
Prior art date
Application number
PCT/CN2022/114620
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English (en)
Chinese (zh)
Inventor
林宁
刘嵘
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中兴通讯股份有限公司
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Publication of WO2023061061A1 publication Critical patent/WO2023061061A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46—Interconnection of networks
    • H04L12/4633—Interconnection of networks using encapsulation techniques, e.g. tunneling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46—Interconnection of networks
    • H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/14—Session management
    • H04L67/141—Setup of application sessions

Definitions

  • the embodiments of the present invention relate to the technical field of communication, and in particular, to a message processing method, a line card, a device, and a storage medium.
  • the method of sending broadcast or multicast messages in distributed devices is: determine the broadcast or multicast messages to be sent according to the protocol, and the main control processor of the distributed devices queries the virtual local area network (Virtual Local Area Network, VLAN) or the multicast table to obtain the port range and port number for sending broadcast or multicast packets on the line card, copy the broadcast or multicast packets based on the number of ports, and encapsulate the copied broadcast or multicast packets to obtain multiple A broadcast packet or a multicast packet, sending multiple broadcast packets or multicast packets to the line card where each port is located, so that the line card sends the broadcast packet or multicast packet through each port.
  • VLAN Virtual Local Area Network
  • the main control processor Before the main control processor sends the broadcast or multicast message to be sent, it needs to copy the broadcast or multicast message. If there are multiple ports for sending broadcast or multicast messages on a line card, the main control processing Multiple message transmissions are required between the device and the line card, which results in occupying the transmission channel between the main control processor and the line card, especially in virtual extended local area network (Virtual Extensible Local Area Network, VXLAN) and multi-protocol label switching ( In services such as Multi-Protocol Label Switching (MPLS), there are multiple sub-interfaces or multiple tunnels in a line card that need to send packets, and the main control processor also needs to perform hundreds or thousands of broadcast or multicast packets.
  • VXLAN Virtual Extensible Local Area Network
  • MPLS Multi-Protocol Label Switching
  • the main control processor and a line card After duplication, the main control processor and a line card transmit broadcast packets or multicast packets hundreds of times, resulting in blockage of the transmission channel between the main control processor and the line card. Therefore, how to ensure the smooth transmission channel between the main control processor and the line card is an urgent problem to be solved at present.
  • the embodiments of the present invention provide a message processing method, line card, device and storage medium, aiming to ensure smooth transmission channel between the main control processor and the line card, so as to improve the stability and security of distributed devices.
  • an embodiment of the present invention provides a message processing method, which is applied to a line card, and the line card communicates with a main control processor in a distributed network device, and the method includes:
  • an embodiment of the present invention further provides a line card, the line card includes a processor, a memory, a computer program stored in the memory and executable by the processor, and a computer program for implementing the processor A data bus connecting and communicating with the memory, wherein when the computer program is executed by the processor, it realizes the steps of any message processing method provided in the description of the present invention.
  • an embodiment of the present invention further provides a distributed device, where the distributed device includes a main control processor and multiple line cards, and the main control processor is communicatively connected to the line cards.
  • an embodiment of the present invention further provides a computer-readable storage medium, the computer-readable storage medium stores one or more programs, and the one or more programs can be executed by one or more processors, In order to realize the steps of any message processing method provided by the description of the present invention.
  • FIG. 1 is a schematic flowchart of a message processing method provided by an embodiment of the present invention
  • Fig. 2 is a schematic flow chart of the sub-steps of the message processing method in Fig. 1;
  • FIG. 3 is a schematic diagram of a scenario of a message processing method provided by an embodiment of the present invention.
  • FIG. 4 is a schematic structural block diagram of a line card provided by an embodiment of the present invention.
  • FIG. 5 is a schematic structural block diagram of a distributed device provided by an embodiment of the present invention.
  • Embodiments of the present invention provide a packet processing method, a line card, a device, and a storage medium.
  • the message processing method can be applied to distributed equipment, and the distributed equipment can be distributed switches, packet transport network (Packet Transport Network, PTN) equipment and wireless access network IP (IP Radio Access Network, IPRAN) ) equipment and other equipment.
  • PTN Packet Transport Network
  • IP IP Radio Access Network
  • FIG. 1 is a schematic flowchart of a message processing method provided by an embodiment of the present invention.
  • the message processing method includes step S101 to step S103.
  • Step S101 Obtain a target packet sent by the main control processor, and determine a destination port of the target packet on the line card.
  • the distributed equipment includes a main control processor and multiple line cards.
  • the main control processor communicates with multiple line cards.
  • the line card includes multiple communication ports.
  • the target message can be The selection is made according to the actual situation, which is not specifically limited in this embodiment.
  • the target message includes any one of a broadcast message and a multicast message.
  • the main control processor when the main control processor generates the target message, it obtains the third mapping relationship table between the preset message and the line card, and queries the target for sending the target message from the third mapping relationship table.
  • line card if there are multiple target line cards, copy the target message to obtain multiple target messages matching the number of target line cards, and transfer multiple A target packet is sent to multiple target line cards so that each target line card receives a target packet.
  • the third mapping relationship table is established in advance according to the message and the line card, and the establishment of the third mapping relationship table is not specifically limited in this embodiment.
  • the main control processor only needs to send one target message for each line card, so that the messages on the communication channel between the main control processor and the line card are greatly reduced, thereby ensuring the smooth communication channel and improving the distribution The stability and security of device information transmission.
  • the main control processor generates the target message in the following manner: calculate and generate the target message according to the communication protocol, wherein the communication protocol can be selected according to the actual situation, which is not specifically limited in this embodiment, for example
  • the communication protocol is Address Resolution Protocol (Address Resolution Protocol, ARP) and Open Shortest Path First (Open Shortest Path First, OSPF) and other protocols.
  • ARP Address Resolution Protocol
  • OSPF Open Shortest Path First
  • the main control processor needs to request an address, it generates a broadcast message according to the ARP.
  • the main control processor needs a link state, it generates a multicast message according to OSPF.
  • the main control processor can accurately generate the target message according to the protocol.
  • the distributed device includes a main control processor and line card 1, line card 2, line card 3, line card 4, line card 5, line card 6, line card 7, line card 8, line card 9, and line Card 10,
  • the target message generated by the main control processor is a broadcast message
  • the target line cards corresponding to the broadcast message queried from the third mapping table include line card 2, line card 3, line card 7 and line card 3. Copy the broadcast message to obtain four broadcast messages, and randomly send the four broadcast messages to line card 2, line card 3, line card 7 and line card 3, so that line card 2 , line card 3, line card 7 and line card 3 all receive a broadcast message.
  • the corresponding flag field of the target message is obtained, the target message and the flag field are spliced to obtain the target message with the flag field added, and the flag field is added.
  • the target message is copied, and the copied target message with the flag bit field added is sent to each target line card.
  • the line card receives the target message sent by the main control processor, and determines the destination port on the line card for sending the target message.
  • the target port is the port for sending the target message.
  • step S101 includes: sub-step S1011 to sub-step S1012.
  • Sub-step S1011 obtain a message forwarding table according to the target message.
  • the message forwarding table is a port table of message forwarding ports.
  • the flag bit field carried by the target message is obtained; the first mapping relationship table between the preset flag bit field and the message forwarding table is obtained; message forwarding table.
  • the first mapping relationship table is established in advance according to the flag bit field and the message forwarding table, and the establishment of the first mapping relationship table can be established according to the actual situation, which is not specifically limited in this embodiment.
  • the first mapping relationship table can accurately obtain the message forwarding table corresponding to the flag bit field, which improves the accuracy of target message forwarding.
  • the manner of obtaining the flag bit field carried by the target message may be: extracting the flag bit field from the target message to obtain the flag bit field carried by the target message. By extracting the flag bit field from the target message, the flag bit field carried by the target message can be accurately obtained, thereby improving the accuracy of sending the target message.
  • the flag bit field sent by the main control processor is obtained to obtain the flag bit field corresponding to the target message.
  • the flag bit field can be accurately obtained when the target message does not carry the flag bit field, and the efficiency of sending the target message is improved.
  • the message type of the target message is obtained; the second mapping table between the preset message type and the message forwarding table is obtained; The message forwarding table.
  • the second mapping relationship table is established in advance according to the message type and the message forwarding table, and the establishment of the second mapping relationship table can be established according to the actual situation, which is not specifically limited in this embodiment.
  • the mapping relationship table can accurately query the message forwarding table corresponding to the message type, and the message forwarding table is determined by the message type, and the main control processor can save the step of adding a flag bit field on the target message or save The step of sending the flag bit field to the line card reduces the power consumption of the main control processor and improves the efficiency of sending the target message.
  • Sub-step S1012 query the port for sending the target message from the message forwarding table, and obtain the destination port of the target message on the line card.
  • the target message is a broadcast message
  • the line card includes port 1, port 2, port 3, port 4, port 5, port 6, port 7, port 8, port 9 and port 10, from the message forwarding table Query the ports for sending broadcast packets in
  • the target ports include port 1, port 5, port 6, and port 8.
  • the target packet is a multicast packet
  • the line card includes port 1, port 2, port 3, port 4, port 5, port 6, port 7, port 8, port 9, port 10, port 11, port 12.
  • Port 13, port 14 and port 15 query the port for sending the multicast message from the message forwarding table, and obtain the target ports including port 2, port 6, port 9 and port 13.
  • Step S102 if there are multiple destination ports, copy the target message to obtain multiple target messages matching the number of the destination ports.
  • One destination port sends one target message. If there are multiple target ports, the target message is copied to obtain multiple target messages matching the number of destination ports. For example, there are 5 destination ports, and the target packets are copied to obtain 5 target packets.
  • Step S103 sending multiple target packets through multiple destination ports, wherein one target port sends one target packet.
  • the multiple target packets are sent from multiple destination ports by sending one target packet through one destination port, so as to complete the transmission of the target packets.
  • the port type of each destination port is determined; the destination port whose port type is not the preset port type is determined as the first destination port, and the destination port whose port type is the preset port type is determined as the second destination port.
  • Destination port sending the target packet through the first destination port, performing tunnel encapsulation processing on the target packet, and sending the tunnel-encapsulated target packet through the second destination port.
  • the preset port type may be set according to actual conditions, which is not specifically limited in this embodiment, for example, the preset port type may be a tunnel port.
  • the target message sent by the tunnel port is encapsulated, so that the target message can be sent out successfully, and the accuracy and efficiency of message sending are improved.
  • the method of performing tunnel encapsulation processing on the target message may be: obtain the tunnel header information corresponding to the second destination port, and perform tunnel encapsulation processing on the target message according to the tunnel header information, so that the tunnel encapsulation process can be accurately obtained.
  • the encapsulated target packet may be: obtain the tunnel header information corresponding to the second destination port, and perform tunnel encapsulation processing on the target message according to the tunnel header information, so that the tunnel encapsulation process can be accurately obtained.
  • the target message includes target message 1, target message 2, target message 3, target message 4 and target message 5, wherein, target message 1, target message 2, target message 3,
  • the target message 4 and the target message 5 are the same message
  • the destination port includes port 1, port 2, port 3, port 4 and port 5, wherein port 2 and port 5 are the destination ports, and the target message is sent through port 1.
  • the main control processor 210 in the distributed device 200 generates a target message, and finds out from the third mapping table that the target line cards that send the target message include line card A220 and line card A220.
  • the card C240 copies the target message to obtain two target messages, and sends the target message to the line card A220 and the line card C240, and the line card A220 and the line card C240 receive the target message, and the line card A220 and the line card C240 receive the target message.
  • Line card C240 respectively obtains the message forwarding table according to the target message, and line card A220 queries the message forwarding table, and obtains that port A222 and port C224 are the destination ports for sending the target message, and the line card processor 221 in line card A220 Copy the target message to obtain two target messages, and send the two target messages through port A222 and port C224 respectively to complete the sending of the target message on the line card A220; in the same way, the line card C240 queries In the message forwarding table, port F242 and port G243 are obtained as the destination ports for sending the target message, and the line card processor 241 in the line card C240 copies the target message to obtain two target messages, and transmits the target message through the ports F242 and The port G243 respectively sends two target packets to complete the sending of the target packets on the line card C240.
  • the message processing method in the above-mentioned embodiment obtains the target message sent by the main control processor, and determines the destination port on the line card of the target message; if there are multiple destination ports, then the target message is copied, and it can be obtained Multiple target packets matching the number of destination ports; and sending multiple target packets through multiple destination ports in a manner of sending one target packet through one destination port.
  • the main control processor and the target line card only need to send one target message, and copy the target message in the line card, so that multiple target messages matching the number of destination ports can be accurately obtained, and then Sending multiple target packets through multiple destination ports not only completes the sending of target packets, but also reduces the number of target packet transmissions between the main control processor and the line card, thereby ensuring that the main control processor and the line card
  • the transmission channel between cards is smooth, which greatly improves the stability and security of distributed equipment.
  • FIG. 4 is a schematic structural block diagram of a line card provided by an embodiment of the present invention.
  • the line card 300 includes a processor 301 and a memory 302, and the processor 301 and the memory 302 are connected through a bus 303, such as an I2C (Inter-integrated Circuit) bus.
  • a bus 303 such as an I2C (Inter-integrated Circuit) bus.
  • the processor 301 is used to provide calculation and control capabilities, and support the operation of the entire line card.
  • the processor 301 can be a central processing unit (Central Processing Unit, CPU), and the processor 301 can also be other general processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC) ), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • the general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the memory 302 may be a Flash chip, a read-only memory (ROM, Read-Only Memory) disk, an optical disk, a U disk, or a mobile hard disk.
  • FIG. 4 is only a block diagram of a part of the structure related to the embodiment of the present invention, and does not constitute a limitation on the line card to which the embodiment of the present invention is applied.
  • the server may include more or fewer components than shown in the figure, or combine certain components, or have a different arrangement of components.
  • the processor is configured to run a computer program stored in a memory, and implement any one of the packet processing methods provided in the embodiments of the present invention when executing the computer program.
  • the processor is configured to run a computer program stored in the memory, and implement the following steps when executing the computer program:
  • the processor when the processor implements the determination of the destination port of the target packet on the line card, it is configured to:
  • the processor when the processor obtains the message forwarding table according to the target message, it is used to realize:
  • the message forwarding table corresponding to the flag bit field is obtained by querying the first mapping relationship table.
  • the processor when the processor obtains the message forwarding table according to the target message, it is used to realize:
  • the packet forwarding table corresponding to the packet type is obtained by querying the second mapping relationship table.
  • the processor when the processor realizes sending multiple target packets through multiple destination ports, it is used to realize:
  • the processor when the processor implements the tunnel encapsulation process on the target message, it is used to implement:
  • the processor is configured to realize that: the target message includes any one of a broadcast message and a multicast message.
  • FIG. 5 is a schematic block diagram of a structure of a distributed device provided by an embodiment of the present invention.
  • the distributed device 400 includes a main control processor 401, a line card A402, a line card B403, and a line card C404, and the main control processor 401 communicates with the line card A402, the line card B403, and the line card C404 respectively.
  • connection wherein the line card A402, the line card B403 and the line card C404 may be the line card 300 shown in FIG. 4 .
  • the distributed device 400 may also include more line cards that are communicatively connected to the main control processor 401 .
  • the embodiment of the present invention also provides a computer-readable storage medium, the computer-readable storage medium stores one or more programs, and the one or more programs can be executed by one or more processors, so as to realize the The steps of any message processing method provided in the description of the invention.
  • the storage medium may be an internal storage unit of the line card or distributed device described in the foregoing embodiments, for example, a hard disk or a memory of the line card or distributed device.
  • the storage medium may also be an external storage device of the line card or distributed equipment, such as a plug-in hard disk equipped on the line card or distributed equipment, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, flash memory card (Flash Card), etc.
  • the functional modules/units in the system, and the device can be implemented as software, firmware, hardware, and an appropriate combination thereof.
  • the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be composed of several physical components. Components cooperate to execute.
  • Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit .
  • Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media).
  • computer storage media includes both volatile and nonvolatile media implemented in any method or technology for storage of information, such as computer readable instructions, data structures, program modules, or other data. permanent, removable and non-removable media.
  • Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cartridges, tape, magnetic disk storage or other magnetic storage devices, or can Any other medium used to store desired information and which can be accessed by a computer.
  • communication media typically embodies computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media .

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

Des modes de réalisation de la présente invention concernent un procédé de traitement de message, une attache de câble, un dispositif et un support d'enregistrement, et appartiennent au domaine des communications. Le procédé consiste à : acquérir un message cible envoyé par un processeur de commande principal et déterminer un port de destination du message cible sur une attache de câble ; s'il existe de multiples ports de destination, copier le message cible pour obtenir de multiples messages cibles correspondant au nombre des ports de destination ; et envoyer les multiples messages cibles au moyen des multiples ports de destination. Dans la présente solution, de multiples messages cibles correspondant au nombre de ports de destination peuvent être obtenus avec précision au moyen d'un processeur de commande principal et d'une attache de câble cible envoyant un message cible et copiant le message cible dans l'attache de câble ; puis, les multiples messages cibles sont envoyés au moyen des multiples ports de destination, achevant ainsi la transmission du message cible, tout en réduisant le nombre de fois où le message cible est transmis entre le processeur de commande principal et l'attache de câble. Ainsi, il est garanti qu'un canal de transmission entre le processeur de commande principal et l'attache de câble n'est pas bloqué, ce qui augmente considérablement la stabilité et la sécurité des dispositifs répartis.
PCT/CN2022/114620 2021-10-15 2022-08-24 Procédé de traitement de message, attache de câble, dispositif et support d'enregistrement WO2023061061A1 (fr)

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