WO2020220987A1 - Procédé et appareil de transmission de paquets de données, procédé et appareil de gestion de transmission de paquets de données, dispositif de transfert de paquets de données, et support d'informations - Google Patents

Procédé et appareil de transmission de paquets de données, procédé et appareil de gestion de transmission de paquets de données, dispositif de transfert de paquets de données, et support d'informations Download PDF

Info

Publication number
WO2020220987A1
WO2020220987A1 PCT/CN2020/084612 CN2020084612W WO2020220987A1 WO 2020220987 A1 WO2020220987 A1 WO 2020220987A1 CN 2020084612 W CN2020084612 W CN 2020084612W WO 2020220987 A1 WO2020220987 A1 WO 2020220987A1
Authority
WO
WIPO (PCT)
Prior art keywords
data packet
data
entry
management table
sfl
Prior art date
Application number
PCT/CN2020/084612
Other languages
English (en)
Chinese (zh)
Inventor
涂晓平
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2020220987A1 publication Critical patent/WO2020220987A1/fr

Links

Images

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44—Arrangements for executing specific programs
    • G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
    • G06F9/45533—Hypervisors; Virtual machine monitors
    • G06F9/45558—Hypervisor-specific management and integration aspects
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44—Arrangements for executing specific programs
    • G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
    • 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
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44—Arrangements for executing specific programs
    • G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
    • G06F9/45533—Hypervisors; Virtual machine monitors
    • G06F9/45558—Hypervisor-specific management and integration aspects
    • G06F2009/45595—Network integration; Enabling network access in virtual machine instances

Definitions

  • the present disclosure relates to the field of communications.
  • Generic Network Virtualization Encapsulation for data packets can carry Service Function Path (SFP) information and Network Service Header (NSH) in the data packets.
  • SFP Service Function Path
  • NSH Network Service Header
  • NSH encapsulation includes services Path identifier (Service Path Identifier, SPI) and Service Index (Service Index, SI).
  • SFF Service Function Forwarders
  • SFL Service Function List
  • TLV Option Tag Length Value
  • the current Application Specific Integrated Circuit (ASIC) switching chips and languages supporting programmable switching chips do not support the switching chips to directly store information related to the general network virtualization package of the data packet. That is, when the SFF strips off the SFP information of a data packet, the switching chip cannot record the SFP information corresponding to the data packet, which results in the failure to obtain the corresponding data packet when the data packet is encapsulated in general network virtualization. SFP information, which cannot realize general network virtualization encapsulation for the data packet.
  • the data packet transmission and management methods, devices, data forwarding equipment, and storage media mainly solve the technical problem that the switching chip of the switch does not support storing information related to data packets and general network virtualization encapsulation, resulting in SF
  • the processed data packet is stripped due to the SFP, and the general network virtualization encapsulation problem cannot be performed again.
  • the embodiments of the present disclosure provide a data packet transmission method, including: receiving and parsing the data packet to obtain the original package information of the data packet.
  • the original package information includes SPI, SI, and SFL Option TLV;
  • the package information is reported to the control plane; it receives the new entry instruction issued by the control plane, and adds the SPI, SI and SFL Option TLV corresponding to the original package information as an entry to the data plane management table according to the new entry instruction ,
  • the data plane management table uses SPI and SI as table keys, and SFL Option TLV as the table content corresponding to the table keywords; when receiving the target data packet sent by SF, query the data plane according to the SPI and SI carried in the target data packet
  • the management table determines the SFL Option TLV corresponding to the target data packet; and encapsulates the target data packet and transmits the target data packet according to the queried SFL Option TLV.
  • the embodiment of the present disclosure also provides a data packet transmission management method, including: receiving original package information of the data packet reported on the data plane, the original package information including SPI, SI, and SFL Option TLV; and calling the interface of the data plane to the data plane. Newly added commands for publication items, new commands for table items are used to control the data plane. Add the table items corresponding to the original package information in the data plane management table.
  • the data plane management table uses SPI and SI as table keywords and SFL Option TLV as The table content corresponding to the table key.
  • the embodiment of the present disclosure also provides a data packet transmission device, the data packet transmission device includes: a receiving and analyzing module for receiving and analyzing the data packet to obtain the original package information of the data packet, the original package information includes SPI, SI, and SFL Option TLV ;
  • the information upload module is used to report the obtained original package information to the control plane;
  • the table item addition module is used to receive the table item addition instruction issued by the control plane, and according to the table item addition instruction, the original package information
  • the corresponding SPI, SI, and SFL Option TLV are added as an entry to the data plane management table.
  • the data plane management table uses SPI and SI as table keywords, and SFL Option TLV as the table content corresponding to the table keywords; information query module , Used to query the data plane management table according to the SPI and SI carried in the target data packet when receiving the target data packet sent by the SF, and determine the SFL Option TLV corresponding to the target data packet; and the package transmission module, used to query the SFL according to the queried SFL Option TLV encapsulates the target data packet and transmits the target data packet.
  • the embodiment of the present disclosure also provides a data packet transmission management device.
  • the data packet transmission management device includes: an information receiving module for receiving original encapsulation information of the data packet reported on the data plane.
  • the original encapsulation information includes SPI, SI, and SFL Option TLV ;
  • the instruction sending module which is used to call the interface of the data plane to issue a new instruction to the data plane.
  • the new entry instruction is used to control the data plane to add the table entry corresponding to the original package information in the data plane management table, data
  • the plane management table uses SPI and SI as table keys, and SFL Option TLV as the table content corresponding to the table keys.
  • the embodiment of the present disclosure also provides a data forwarding device, including a processor, a memory, and a communication bus.
  • the communication bus is used to realize the connection and communication between the processor and the memory, and the processor is used to execute the data packet transmission program stored in the memory to The steps of the foregoing data packet transmission method are implemented, or the processor is used to execute the data packet transmission program stored in the memory to implement the steps of the foregoing data packet transmission management method.
  • the embodiment of the present disclosure further provides a storage medium in which at least one of a data packet transmission program and a data packet transmission management program is stored, and the data packet transmission program can be executed by one or more processors to realize the above data packet transmission method
  • the data packet transmission management program can be executed by one or more processors to implement the steps of the above data packet transmission management method.
  • Fig. 1 is a schematic diagram of a service chain of a Geneve Overlay network according to an embodiment of the present disclosure
  • FIG. 2 is a schematic diagram of the data structure of the Geneve tunnel header according to an embodiment of the present disclosure
  • FIG. 3 is a schematic diagram of the data structure of SFL Option TLV according to an embodiment of the present disclosure
  • FIG. 4 is a schematic diagram of interaction of a data transmission scheme between a data plane and a control plane in a data forwarding device according to an embodiment of the present disclosure
  • FIG. 5 is a flowchart of a data packet transmission management method of the control plane according to an embodiment of the present disclosure
  • Fig. 6 is a flowchart of table entry deletion performed on the data plane according to an embodiment of the present disclosure
  • FIG. 7 is a flowchart of table item aging assessment performed on the control plane according to an embodiment of the present disclosure.
  • FIG. 8 is a processing flowchart after the control plane receives the original package information reported on the data plane according to an embodiment of the present disclosure
  • FIG. 9 is a schematic structural diagram of a data packet transmission device according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of a data packet transmission management device according to an embodiment of the present disclosure.
  • Fig. 11 is a schematic diagram of the hardware structure of a data forwarding device according to an embodiment of the present disclosure.
  • SF business service function nodes
  • firewall FireWalls
  • intrusion detection system Intrusion Prevention System
  • Load Balancing load balancing
  • the [RFC7665] document (“Service Function Chain (SFC) Architecture", October 2015) defines the architecture of the Service Function Chain (SFC).
  • SFC Service Function Chain
  • the SFC defines the service function path as the data packet when actually traversing the network. A certain set of service function forwarders/service functions to be accessed.
  • the optimized SFP helps to build an efficient service function chain (SFC), which can be used to control traffic according to classification rules and metadata information, so as to provide services for Network Function Virtualization (NFV). Metadata is usually passed between the service function (SF) and the service function forwarder (SFF) along the service function path (SFP).
  • SFC Service Function Virtualization
  • SFF service function forwarder
  • SFP service function path
  • NVO3 Network Virtualization over Layer 3
  • NVO3 domain of Layer 3 uses tunnels and encapsulation protocols (such as Geneve) to provide connections between tenant workloads and service functions running in their domains.
  • the [RFC8300] document (“Network Service Header”, January 2018) defines a new encapsulation protocol, namely NSH) for encoding SFP and metadata.
  • the draft proposes a method of using Geneve to carry service function path (SFP) information and network service header (NSH) encapsulation.
  • SFP will use the new Geneve service function list (Service Function List, SFL) option to realize transmission, and strictly limit the service function forwarder (SFF) in the same network virtualization overlay (Network Virtualization Overlay) network
  • SFF Service Function forwarder
  • NVE Network Virtualization Edge
  • NSH Network Virtualization Overlay
  • VNF Virtual Network Function
  • Step (1) Ingress operation (entry operation)
  • the controller can program the ingress NVE node to classify the traffic and identify the service function path (SFP), that is, the service function set in the path.
  • SFP service function path
  • the entrance NVE node (SC) fills the service function list (SFL) in the path, and then parses the first service function according to the SFL, and performs Geneve tunnel encapsulation. Then set the service index (SI) to n, where n is the number of elements in the SFL, and send the Geneve packet to the first NVE (SFF), see Figure 1 shows the general network virtualization package coverage (Geneve Overlay) A schematic diagram of the service chain of the network.
  • SI service index
  • the data packet is forwarded between the service function forwarders (SFF) along the service function path (SFP), the SFL option is identified on the SFF, and the service function is located in the list based on the service index (SI).
  • SFF service function forwarders
  • SI service index
  • OPT Len (6 bits): In units of 4 bytes, it indicates the length of the available length options (Variable Length Options). Because there are only 6 bits, the Variable Length Options is 252 (ie, 63 ⁇ 4) bytes at most.
  • O (1 bit) Indicates that this is an OAM packet, which contains control information, not data.
  • the endpoint (Endpoint) can preferentially process this packet according to this bit.
  • C (1 bit): Indicates that there are one or more critical (Critical) options in Variable Length Options.
  • C When C is set, Variable Length Options must be parsed. If the current Endpoint does not support Geneve parsing, the packet should be discarded. If C is not set, the Endpoint can directly discard all Variable Length Options according to OPT Len.
  • Protocol Type (16 bits): The type of the encapsulated protocol, for example, Ethernet is 0x6558. The existence of this field makes it possible for Geneve to encapsulate other Layer 2 protocols.
  • VNI 24 bits: Virtual Network Identifier (Virtual Network Identifier) Virtual Extensible LAN Network Identifier (VXLAN Network Identifier).
  • Variable Length Options Consists of tag, length, and value (Tag Length Value, TLV), and includes expandable metadata.
  • Figure 3 shows the data structure of the SFL Option TLV.
  • the data packet after the stripping process will be passed to the SF or VNF, and the SF or VNF will perform corresponding processing on the data packet.
  • the SFF should determine the SFL Option TLV belonging to the data packet based on the SPI and SI on the data packet. Then analyze the next service function according to SFL, perform Geneve tunnel encapsulation, and subtract 1 from the service index (SI), and send the Geneve packet to the next NVE (SFF).
  • the service index (SI) of the Geneve data packet received by the last SFF node from the previous SFF node is 1, and the data packet with a service index of 0 will be discarded.
  • SI service index
  • the NVE locates the service function in the SFL Option TLV based on the NSH SI.
  • the Geneve tunnel header and SFL Option TLV will be stripped, and the data packet will be delivered to the SF.
  • the SFL Option TLV can be located based on the NSH SPI on the data packet or based on the NVE.
  • the service index is 0, and the last SFF will strip the NSH encapsulation of the data packet and forward the data packet to the destination.
  • Geneve Overlay Network 1 includes four SFF nodes. Data packets are sent from the source (src) node to SFF4, and then transmitted from SFF4 to SFF3. On SFF3, the data packets The Geneve tunnel header and SFL Option TLV will be stripped, and then SFF3 will transmit the data packet to its corresponding SF1, and SF1 will process the data packet. After SF1 finishes processing the data packet, it will return the processed data packet to SFF3, and SFF3 will send the data packet to SFF2 after Geneve tunnel encapsulation. The data packet is processed on SFF2 and SF2. After SF2 finishes processing the data packet, the service index (SI) of the data packet becomes 0. At this time, SFF2 will strip the data after receiving the data packet with the service index of 0 from SF2. The NSH package of the packet, and the data packet is sent to SFF1, and then sent by SFF1 to the destination (dst) node.
  • SI service index
  • SFF (or NVE) should maintain the association relationship between SFL Option TLV and NSH SPI.
  • the current switching chip cannot record the SFP information corresponding to the data packet, which results in the failure to obtain the SFP information corresponding to the data packet when the data packet is encapsulated by general network virtualization. Information, it is impossible to realize general network virtualization encapsulation for the data packet.
  • embodiments of the present disclosure provide a data transmission solution. Please refer to the schematic diagram of interaction between the data plane and the control plane in the data transmission solution in the data forwarding device shown in FIG. 4.
  • step S402 the data plane receives and parses the data packet to obtain the original encapsulation information of the data packet.
  • the data plane is the data plane of the SFF, so in this embodiment, the data plane will receive data packets from the ingress NVE node or other SFFs, and the data packets are encapsulated by general network virtualization. After receiving the data packet, the data plane performs analysis processing such as stripping of the Geneve tunnel header and SFL Option TLV to obtain the original encapsulation information of the data packet.
  • the so-called original encapsulation information here refers to the SPI, SI, and SFL Option TLV of the data packet.
  • the SI in the original encapsulation information obtained by the data plane parsing the data packet refers to the SI carried in the data packet when the data plane receives the data packet.
  • step S404 the data plane reports the obtained original package information to the control plane.
  • the data plane After the data plane obtains the original encapsulation information of the data packet, it can report the original encapsulation information to the control plane.
  • the control surface is also the control surface of SFF. It should be noted that the data plane and the control plane may be located on different physical devices.
  • the data plane parses and obtains the original encapsulation information, it not only reports the original encapsulation information to the control plane, but also sends the data packet stripped of the Geneve tunnel header and SFL Option TLV to the corresponding SF so that the SF Perform corresponding functional processing on the data packet.
  • step S406 the control plane calls the interface of the data plane to publish an item addition instruction under the data plane.
  • the control plane will receive the original package information reported on the data plane, and after receiving the original package information reported on the data plane, it can issue an item addition command to the data plane so that the data plane can add the original package to the data plane management table.
  • the data plane management table is set on the data plane side and is set by the data plane.
  • the data plane management table is used to maintain the mapping relationship between SPI, SI and SFL Option TLV corresponding to the recorded data packet, so that after the data plane receives the data packet returned from the SF, it can also determine the SFL Option TLV of the data packet. And then realize the universal network virtualization encapsulation of the data packet.
  • the data plane management table uses SPI and SI as table keywords, and SFL Option TLV as the table content corresponding to the table keywords. Please refer to the data plane management table shown in Table 1:
  • a row is an entry.
  • a row in the table includes an SPI value, an SI value, and an SFL Option TLV corresponding to the SPI and SI.
  • the table items include SPI, SI, and SFL Option TLV corresponding to the SPI and SI.
  • control plane When the control plane publishes a new command under the data plane, it can call the data plane including but not limited to the software development kit (SDK) interface to issue the command.
  • SDK software development kit
  • step S408 the data plane adds the SPI, SI, and SFL Option TLV corresponding to the original package information as one entry to the data plane management table according to the entry addition instruction.
  • the data plane After the data plane receives the entry addition instruction sent by the control plane, it will add an entry in the data plane management table according to the entry addition instruction.
  • the command to control the new table entry sent from the data plane carries related information about the new table entry, including SPI, SI, and SFL Option TLV in the new table entry.
  • control plane instructs the data plane to add an entry corresponding to the original package information through the entry addition command, but this does not mean that the SPI, SI, and SFL Option TLV in the new entry are the original package information.
  • the SF after the SF receives the data packet sent by the SFF data plane, it will decrement the SI of the data packet, usually by decrementing "1".
  • the SF sends the data to the SFF
  • the packet and the data packet sent by SFF to SF are the same data packet. The difference is that the former has undergone corresponding functional processing, while the latter has not been processed by corresponding functionalities.
  • the SI carried by the two data packets are indeed different.
  • the SI value of the data packet sent by the SF to the SFF is one less than the SI value of the data packet sent by the SFF to the SF.
  • the data plane when the data plane performs network virtualization encapsulation on the data packet, if the current SPI and SI on the data packet are directly used as keywords to query on the data plane management table, the data plane will add the When the data packet corresponds to the table entry, the SI should be updated on the basis of the SI in the original package information accordingly.
  • the value of SI in the original encapsulation information reported on the data plane is "4"
  • the value of SI carried in the data packet returned by SF to the SFF data plane should be "3”.
  • the general network virtualization encapsulation of data packets the data plane will be queried in the data plane management table based on the SI value of "3".
  • the control plane controls the data plane to add new items to the data plane management table through the table item addition command, it should also decrement the SI value in the original package information by 1 to obtain "3", and let the data plane add the SI value The entry is "3".
  • the control plane adds an entry on the control data plane.
  • the SI value carried in the new entry instruction may still be the SI value in the original package information. In this way, when the data plane queries the data plane management table, it only needs to correspondingly decrement the SI value of the data packet by 1 and then increase it by 1.
  • the control plane can send an entry addition instruction to the data plane to add a new entry in the entry In the instruction, the value of SI is still "4".
  • the SI value is "4".
  • the value of SI carried in the data packet returned by SF to the SFF data plane should be "3".
  • the data plane uses "4" as one of the keywords to query the data plane management table. It should be noted that the data plane adds "1" to the current SI value of the data packet. This is just to query the data plane management table to obtain the SFL Option TLV corresponding to the data packet, and it will not really change the data packet. SI value.
  • control plane determines the content of the new entry corresponding to each data packet in accordance with unified rules, and the data plane also queries the data plane management table uniformly in accordance with the corresponding rules, the control plane sends the entry addition instruction Whether the SI value is consistent with the SI in the original package information is feasible.
  • step S410 when the data plane receives the target data packet sent by the SF, it queries the data plane management table according to the SPI and SI carried in the target data packet to determine the SFL Option TLV corresponding to the target data packet.
  • the data packet returned by the SF When the data packet returned by the SF is received on the data plane, the data packet needs to be encapsulated by general network virtualization.
  • the data packet returned by the SF is referred to as a "target data packet". It is understandable that for the same data plane, it may continuously receive data packets with the same or different services. While receiving data packets sent from other SFF or NVE, it will also receive the processed data packets sent by SF.
  • the target packet The entry corresponding to the target data packet is not necessarily the latest entry in the data plane management table, but it must be an entry that has been added to the data plane management table.
  • the data plane can obtain the SPI and SI carried on the target data packet, and then query the data plane management table according to the SPI and SI. If when adding an entry, the SI value in the entry addition instruction sent by the control plane has been decremented, then the data plane can directly query the data plane using the SPI and SI obtained from the target data packet as keywords
  • the management table obtains the corresponding SFL Option TLV; if the SI value in the table item addition instruction sent by the control plane is not decremented when adding an entry, the data plane can compare the SI value obtained from the target data packet After adding "1", together with the obtained SPI value, it is used as a key to query the data plane management table to obtain the corresponding SFL Option TLV.
  • step S412 the data plane encapsulates the target data packet and transmits the target data packet according to the queried SFL Option TLV.
  • the data plane After the data plane obtains the SFL Option TLV of the target data packet, it can perform general network virtualization encapsulation on the target data packet according to the SFL Option TLV. After the general network virtualization encapsulation is completed, the data plane sends the encapsulated data packet to the next node of the current node in the SFL.
  • the SFL Option TLV is set on the data plane to save data packets in association.
  • Data plane management table with SPI and SI information When the data plane receives a data packet from SFF or NVE and obtains the original encapsulation information of the data packet, it will first report it to the control plane, and then store a data packet in the data plane management table under the direction of the control plane.
  • the data packet transmission scheme includes the data packet transmission method implemented on the data plane and the data packet transmission management method implemented by the control plane.
  • the data packet transmission management method mainly describes the data packet transmission scheme, please refer to the flowchart shown in FIG. 5.
  • step S502 the control plane receives the original encapsulation information reported on the data plane.
  • the original encapsulation information received by the control plane should include the SPI, SI, and SFL Option TLV of the data packet currently received by the data plane.
  • the data reported by the control plane may also include other information.
  • step S504 the control plane adds an entry corresponding to the original package information to the control plane management table, and issues an item addition instruction under the data plane.
  • a data plane management table is set on the data plane
  • a management table is set on the control plane, which is the control plane management table.
  • the control plane management table uses SPI and SI as table keywords, and the table content corresponding to the table keywords may include SFL Option TLV.
  • the control plane After the control plane receives the original package information reported on the data plane, it can add an entry corresponding to the original package information in the control plane management table. Similar to adding an entry corresponding to the original package information in the data plane management table, the new entry "corresponding to the original package information" in the control plane management table by the control plane does not mean the content of the new entry It is completely equivalent to the content in the original package information.
  • the possible SI value of the newly added entry may be the updated SI value obtained after decrementing the SI value in the original package information.
  • the entry content of the new entry in the data plane management table is the same as the entry content of the new entry in the control plane management table, for example, if the original package information reported on the data plane SPI is "27", SI is "4", SFL Option TLV is "x", and the control plane can add SPI to "27” and SI to "3" in the control plane management table based on the original package information.
  • SFL Option TLV is an entry of "x”.
  • the control plane can also send to the data plane an entry addition command for the original package information. In the entry addition command, SPI is "27”, SI is “3”, and SFL Option TLV is "x” . After the data plane receives the entry addition instruction, it will add an entry with SPI as "27”, SI as "3”, and SFL Option TLV as "x” in the data plane management table.
  • the process of adding items to the control plane management table by the control plane and the process of issuing new instructions to the data plane can be performed at the same time or sequentially. For example, in some examples of this embodiment, first add an entry in the control plane management table, and then issue an item addition instruction; in some other examples of this embodiment, the control plane can also issue an entry first Add a command to the item, and then add an item in the control plane management table.
  • Setting the control plane management table on the control plane is mainly for managing each entry in the data plane management table.
  • the management mentioned here includes adding and deleting entries in the data plane management table.
  • the SPI and SFL Option TLV of each data packet are the same, and these data packets are located at the same SFF node.
  • the SI value is also the same.
  • the data plane adds a new entry in the data plane management table for each, it will cause many entries with the same substance in the data plane management table. This will lead to a waste of data plane storage resources.
  • control plane management table When the control plane management table is set up on the control plane, and an entry with the same content as that in the data plane management table is added to the control plane management table, when the data-oriented control plane reports the original package information of a data packet, the control plane Before the data plane sends an entry addition instruction, the control plane can determine whether there is an entry corresponding to the original package information in the control plane management table. If the judgment result is yes, the control plane does not need to be added to the control plane management table. The corresponding entry is added, and only when the judgment result is negative, the corresponding entry will be added to the control plane management table.
  • the control plane determines whether there is an entry corresponding to the original package information in the control plane management table. In fact, it is in determining the data plane management table. Whether there is an entry corresponding to the original package information. If the judgment result of the control plane is yes, the control plane does not need to send the table entry addition instruction to the data plane, and only when the judgment result is no, will it send the table entry addition instruction to the data plane to make the data plane new Add entries that do not exist.
  • control plane By setting the control plane management table on the control plane, the control plane can manage whether to add new entries according to the control plane management table, which avoids setting multiple duplicate entries in the data plane management table and reduces the storage resources of the data plane. Waste is conducive to the optimal allocation of resources.
  • an entry is not only used for the encapsulation and transmission of a data packet, but is used for all the same data of SPI and SI.
  • Package encapsulation and transmission that is, the transmission of all data packets for the same service.
  • the corresponding entries of the service data packet in the data plane management table are no longer meaningful. If these entries are kept, the storage resources of the SFF will be occupied, causing a waste of resources.
  • the control plane can delete invalid entries in the data plane management table according to the control plane management table.
  • each entry in the control plane management table has a corresponding aging time.
  • the control plane can manage the deletion or retention of the entry in the control plane management table based on the aging time of the entry in the control plane management table. If an entry is aging When the time is over, the control plane will delete entries from the control plane management table. Please refer to the control plane management table shown in Table 2:
  • control plane management table When there is an entry that needs to be deleted in the control plane management table, there is also a corresponding entry in the data plane management table that needs to be deleted.
  • the control plane determines that an entry in the control plane management table has expired, it can send an entry deletion instruction to the data plane by calling the interface of the data plane, so that the data plane deletes the specified entry from the data plane management table. Please refer to a flowchart of table item deletion on the data plane shown in FIG. 6 below.
  • step S602 the data plane receives the entry deletion instruction sent by the control plane.
  • control plane When the control plane sends an entry delete instruction to the data plane, it can send relevant information of the target entry to be deleted through the entry delete instruction to the data plane, which usually includes the SPI and SI of the target entry to be deleted.
  • step S604 the data plane deletes the target entry in the data plane management table according to the entry deletion instruction.
  • the data plane After the data plane receives the entry delete instruction, it can find the target entry in the data plane management table according to the SPI and SI carried in the entry delete instruction, and then delete the entry.
  • the aging time may or may not be the same.
  • the aging time set by the control plane for one entry is t1
  • the aging time for all other entries is t2; in some other examples of this embodiment, the control plane is all
  • the aging time set in the table item is t1.
  • the setting of the aging time of each entry can be uniformly set by the network administrator according to experience values. In some embodiments, the network administrator can set the aging time according to the time interval between two adjacent data packet transmissions in the same service.
  • control plane management table there may be many entries in a control plane management table at the same time.
  • the control plane may need to spend more processing resources to monitor the aging time.
  • the control plane can periodically and periodically judge whether the aging time of each entry is over.
  • the processing period set by the control plane is t0, that is, every time t0, the control plane will uniformly reduce the aging time of each entry in the control plane management table by t0, and then determine the remaining aging of each entry Whether the time is less than or equal to 0, and for those entries whose remaining aging time does not exceed 0, the control plane can determine the entries that need to be deleted. For example, suppose that after the previous aging assessment, there are still three items, item 1, item 2, and item 3 in the control plane management table, and the remaining aging time of these three items is 5s, 3s, and 7s, respectively. The processing period of the control plane is 5s.
  • step S702 an entry that has not undergone this aging assessment is selected from the control plane management table.
  • step S704 the aging time of the entry is reduced by t0.
  • step S706 it is determined whether the remaining aging time of the entry is less than or equal to zero.
  • step S708 the entry is deleted from the control plane management table, and the entry deletion instruction is used to instruct the data plane to delete the entry corresponding to the same keyword in the data plane management table.
  • step S710 it is determined whether there are any entries in the control plane management table that have not undergone this aging assessment.
  • step S712 the next aging evaluation process is entered after waiting for t0.
  • control plane when the control plane is in the process of aging assessment of the entries in the control plane management table, if the set processing period is shorter, the evaluation of the control plane will be more frequent. In this way, when an entry is After the actual aging time is over, it can be cleaned up as soon as possible, and will not be deleted because the processing cycle has not arrived. It can increase the proportion of effective entries in the control plane management table and the data plane management table, and reduce the waste of storage resources. It will also increase the processing resources of the control plane for aging assessment.
  • Each entry in the control plane management table has an aging time, and the entry will not be deleted before the aging time expires. Therefore, a data packet is received from another SFF or NVE on the SFF data plane, and the original After the encapsulation information is reported to the control plane, if the control plane determines that an entry corresponding to the original encapsulation information already exists in the control plane management table, the control plane does not need to send an entry addition instruction to the data plane, nor does it need to be managed by the control plane To add a corresponding entry in the table, you only need to reset the aging time of the corresponding entry in the control plane management table to the initial value.
  • the aging time of the table entry will be reset to the initial value again, and so on, until all the data of the service The packet transmission ends, or the aging time of the entry ends before the arrival of a new data packet.
  • step S802 it is judged whether there is an entry corresponding to the received original package information in the control plane management table.
  • step S804 the aging time of the entry corresponding to the original package information in the control plane management table is reset to the initial value.
  • the control plane can directly initialize the aging time of the corresponding entry in the control plane management table. This is equivalent to modifying the entries in the control plane management table, and obtaining the entries corresponding to the original encapsulation information reported by the data plane.
  • step S806 an entry corresponding to the original package information is added to the control plane management table.
  • control plane may add an entry corresponding to the original package information in the control plane management table.
  • step S808 an instruction for adding an entry corresponding to the original package information is sent to the data plane.
  • the control plane can send an entry addition instruction to the data plane. Let the data plane add an entry corresponding to the original package information in the data plane management table.
  • control plane sends an entry addition instruction to the data plane after adding an entry in the control plane management table.
  • control plane can first send the entry addition instruction. Instruction, and then add an entry in the control plane management table, or the two processes are performed simultaneously.
  • the control plane management table may not be used to manage the deletion of entries in the data plane management table.
  • the data plane After the data plane completes the search for the SFL Option TLV information of the data packet and the general network virtualization encapsulation of the data packet, it can report to the control plane, and the item delete instruction is issued under the control plane, and the data plane deletes the entry according to the item delete instruction; or the data plane After completing the search for the SFL Option TLV information of the data packet and the general network virtualization encapsulation of the data packet, the entry is directly deleted.
  • the data plane and the control plane need to interact frequently. This is because once the data plane receives a data packet, the control plane needs to issue an item addition command to make the data plane add entries.
  • the control plane management by setting the control plane management table corresponding to the data plane management table on the control plane, and setting the aging time for each entry in the control plane management table, the control plane management can be realized based on the aging time
  • the deletion management of the entries in the table is to realize the deletion management of the entries in the data plane management table, so that invalid entries in the data plane management table are deleted without frequent interaction between the data plane and the control plane.
  • the occupation of storage resources optimizes resource allocation.
  • the network manager sets a fixed table entry aging time (assumed to be 20s) on the control plane in advance, and creates an empty table (here it is assumed that the table name of the table is SFL_TABLE_Control).
  • SPI and SI are table keywords, and the contents of the table items corresponding to the table keywords include SFL Option TLV and aging time value.
  • control plane also creates an empty table on the data plane by calling the exchange chip SDK (or related technology) (here it is assumed that the table name is SFL_TABLE_Data), the table uses SPI and SI as table keys, and SFL Option TLV is the table content corresponding to the table key.
  • exchange chip SDK or related technology
  • the network administrator can set the timing processing program on the control plane (assuming that the timing time is 5s, that is, the processing cycle is 5s).
  • the processing process of the data plane includes a Transit operation (transit operation) on the data plane, which includes the following steps 1 to 4.
  • Step 1 When the data packet reaches the service function forwarder (SFF), the data plane strips the Geneve tunnel header and SFL Option TLV of the data packet, and then passes the data packet to the service function (SF) or virtual network function (VNF) for acceptance deal with.
  • SFF service function forwarder
  • SF service function
  • VNF virtual network function
  • the data plane uses the SPI and SI carried in the data packet as the key to query SFL_TABLE_Data, and determines the SFL Option TLV of the returned data packet as ⁇ [10.5.2.1], [10.6.3.1], [10.7.3.1] ⁇ .
  • Step 4 The data plane encapsulates the queried SFL Option TLV in the data message, and continues the forwarding process.
  • the processing process of the control plane includes the processing of adding or modifying entries on the control plane and the processing of evaluating aging of entries on the control plane.
  • the processing of adding or modifying entries on the control plane includes the following steps 1 to 3.
  • control plane If the data packet currently received by the data plane is not the first data packet of the business to which it belongs, the control plane will query the hit. In this case, the control plane resets the aging time of the table entry hit by the query in SFL_TABLE_Control to 20s .
  • the control plane performs steps 1 and 2 of the table entry aging assessment processing.
  • Step 1 When the processing period arrives, the control plane takes out each item in the table SFL_TABLE_Control, and reduces the aging time of the taken table item by 5s.
  • Step 2 After completing the aging time reduction process, the control plane determines whether the remaining aging time of each entry is less than or equal to 0.
  • the initial 20s aging time will be reduced after each aging evaluation process minus 5s. In this way, the remaining aging time of the entry will always be at a certain time. It is reduced to less than or equal to 0 during the aging evaluation process.
  • the control plane will delete the entry, and at the same time call the switch chip SDK (or related technology) to delete the entry with the same keyword in the data plane SFL_TABLE_Data.
  • the purpose of the data plane to maintain the mapping relationship between the data packets SPI, SI and SFL Option TLV is realized.
  • the corresponding entries be added to the control plane and the data plane.
  • a delete operation is generated on the control plane and the data plane, thereby greatly reducing the number of interactions between the control plane and the data transmission plane.
  • Another embodiment of the present disclosure provides a data packet transmission device, which is applied to the data plane side. Please refer to the schematic structural diagram of the data packet transmission device 90 shown in FIG. 9.
  • the data packet transmission device 90 includes a receiving analysis module 902, an information uploading module 904, an entry adding module 906, an information query module 908, and an encapsulation transmission module 910.
  • the receiving and parsing module 902 is configured to receive and analyze the data packet to obtain the original package information of the data packet.
  • the original package information includes SPI, SI, and SFL Option TLV.
  • the information upload module 904 reports the obtained original package information to the control plane.
  • the entry addition module 906 is used to receive the entry addition instruction issued by the control plane, and add SPI, SI and SFL Option TLV corresponding to the original package information as one entry to the data plane management according to the entry addition instruction Tables and data plane management tables use SPI and SI as table keys, and SFL Option TLV as table content corresponding to the table keys.
  • the information query module 908 is configured to query the data plane management table according to the SPI and SI carried in the target data packet when receiving the target data packet sent by the SF, and determine the SFL Option TLV corresponding to the target data packet.
  • the encapsulation transmission module 910 is configured to encapsulate the target data packet according to the queried SFL Option TLV and transmit the target data packet.
  • This embodiment also provides a data packet transmission management device, which is applied to the control plane side. Please refer to the schematic structural diagram of the data packet transmission management device 10 shown in FIG. 10.
  • the data packet transmission management device 10 includes an information receiving module 102 for receiving original encapsulation information of the data packet reported on the data plane.
  • the original encapsulation information includes SPI, SI, and SFL Option TLV.
  • the data packet transmission management device 10 also includes an instruction sending module 104, which is used to call the interface of the data plane to issue a new instruction under the data plane. The entry corresponding to the original package information.
  • the data plane is the data plane of the SFF
  • the receiving and parsing module 902 will receive the data packet using general network virtualization encapsulation from the ingress NVE node or other SFF.
  • analysis processing such as the Geneve tunnel header and SFL Option TLV stripping on the data packet, so as to obtain the original encapsulation information of the data packet.
  • the so-called original encapsulation information here refers to the data Package SPI, SI and SFL Option TLV.
  • the SI in the original encapsulation information obtained by the receiving and parsing module 902 parsed the data packet refers to the SI carried in the data packet when the data plane receives the data packet.
  • the information uploading module 904 may report the original packaging information to the control plane.
  • the control surface is the control surface of SFF.
  • the data plane and the control plane may be located on different physical devices.
  • the information receiving module 102 of the control plane side data packet transmission management device 10 will receive the original package information uploaded by the information uploading module 904.
  • the data plane not only reports the original encapsulation information to the control plane after the receiving analysis module 902 parses the original encapsulation information, but also sends the data packet stripped of the Geneve tunnel header and SFL Option TLV to the corresponding SF, so that SF performs corresponding functional processing on the data packet.
  • the instruction sending module 104 can issue an item addition instruction to the data plane, so that the data packet transmission device 90 of the data plane adds the information to the data plane management table. The entry corresponding to the original package information.
  • the data plane management table is set on the data plane side and is set by the data packet transmission device 90.
  • the data plane management table is used to maintain the mapping relationship between SPI, SI and SFL Option TLV corresponding to the recorded data packet, so that after the data plane receives the data packet returned from the SF, the information query module 908 can determine the SFL of the data packet Option TLV, and then realize the universal network virtualization encapsulation of the data packet.
  • the data plane management table uses SPI and SI as table keys, and uses SFL Option TLV as the table content corresponding to the table keys. Please refer to Table 1.
  • a row is an entry.
  • a row in the table includes an SPI value, an SI value, and an SFL Option TLV corresponding to the SPI and SI.
  • the table items include SPI, SI, and SFL Option TLV corresponding to the SPI and SI.
  • the instruction sending module 104 When the instruction sending module 104 publishes a new instruction under the data plane, it can call the interface of the data plane including but not limited to SDK to issue the instruction.
  • the entry adding module 906 After the entry adding module 906 receives the entry adding instruction sent by the control plane, it will add an entry to the data plane management table according to the entry adding instruction.
  • the table entry addition instruction sent by the control plane data packet transmission management device 10 carries related information of the new table entry, including SPI, SI, and SFL Option TLV in the new table entry.
  • SI and SFL Option TLV are SPI, SI and SFL Option TLV in the original package information.
  • the SF after the SF receives the data packet sent by the SFF data plane, it will decrement the SI of the data packet, usually by decrementing "1".
  • the SF sends the data to the SFF
  • the packet and the data packet sent by SFF to SF are the same data packet. The difference is that the former has undergone corresponding functional processing, while the latter has not been processed by corresponding functionalities.
  • the SI carried by the two data packets are indeed different.
  • the SI value of the data packet sent by the SF to the SFF is one less than the SI value of the data packet sent by the SFF to the SF.
  • the encapsulation transmission module 910 of the data packet transmission device 90 on the data plane performs network virtualization encapsulation on the data packet
  • the information query module 908 directly uses the current SPI and SI on the data packet as the key
  • the SI should be updated accordingly on the basis of the SI in the original encapsulation information.
  • the value of SI in the original encapsulation information reported on the data plane is "4"
  • the value of SI carried in the data packet returned by SF to the SFF data plane should be "3".
  • the information query module 908 will query in the data plane management table based on the SI value of "3".
  • the command sending module 104 of the control plane adds an entry to the data plane management table through the entry-added command control entry adding module 906, it should also decrement the value of SI in the original package information by one to obtain “3”. "To add an entry with the SI value of "3" to the data plane.
  • the control plane adds an entry on the control data plane.
  • the SI value carried in the new entry instruction may still be the SI value in the original package information. In this way, when the data plane queries the data plane management table, it only needs to correspondingly decrement the SI value of the data packet by 1 and then increase it by 1.
  • the control plane can send an entry addition instruction to the data plane to add a new entry in the entry In the instruction, the value of SI is still "4".
  • the SI value is "4".
  • the value of SI carried in the data packet returned by SF to the SFF data plane should be "3".
  • the data plane uses "4" as one of the keywords to query the data plane management table. It should be noted that the data plane adds "1" to the current SI value of the data packet. This is just to query the data plane management table to obtain the SFL Option TLV corresponding to the data packet, and it will not really change the data packet. SI value.
  • control plane determines the content of the new entry corresponding to each data packet in accordance with unified rules, and the data plane also queries the data plane management table uniformly in accordance with the corresponding rules, the control plane sends the entry addition instruction Whether the SI value is consistent with the SI in the original package information is feasible.
  • the data packet returned by the SF When the data packet returned by the SF is received on the data plane, the data packet needs to be encapsulated by general network virtualization.
  • the data packet returned by the SF is referred to as a "target data packet". It is understandable that for the same data plane, it may continuously receive data packets with the same or different services. While receiving data packets sent from other SFF or NVE, it will also receive the processed data packets sent by SF.
  • the target packet The entry corresponding to the target data package is not necessarily the latest entry in the data plane management table, but it must be an entry that has been added to the data plane management table.
  • the information query module 908 can obtain the SPI and SI carried in the target data packet, and then query the data plane management table according to the SPI and SI. If when adding an entry, the SI value in the entry adding instruction sent by the control plane has been decremented, the information query module 908 can directly use the SPI and SI obtained from the target data packet as keywords to query The data plane management table obtains the corresponding SFL Option TLV; if the SI value in the table item addition instruction sent by the control plane has not undergone decrement processing when adding an entry, the information query module 908 can check the data from the target data packet After adding "1" to the obtained SI value, the obtained SPI value is used as a key to query the data plane management table to obtain the corresponding SFL Option TLV.
  • the encapsulation transmission module 910 may perform general network virtualization encapsulation on the target data packet according to the SFL Option TLV. After the general network virtualization encapsulation is completed, the encapsulation transmission module 910 sends the encapsulated data packet to the next node of the current node in the SFL.
  • the SFL Option TLV will be set on the data plane to save data packets in association.
  • Data plane management table with SPI and SI information When the data plane receives a data packet from SFF or NVE and obtains the original encapsulation information of the data packet, it will first report it to the control plane, and then store a data packet in the data plane management table under the direction of the control plane.
  • the data packet transmission device 90 is deployed on the data forwarding device on the data plane, and the functions of the receiving and parsing module 902, the information uploading module 904, the entry adding module 906, and the encapsulating transmission module 910 can all be performed by the data forwarding device
  • the processor and the communication unit are implemented together, and the function of the information query module 908 can be implemented by the processor of the data forwarding device.
  • the data plane management table of the data plane can be stored in the memory.
  • the data packet transmission management apparatus 10 is deployed on a data forwarding device on the control plane, and the functions of the information receiving module 102 and the instruction sending module 104 can be implemented by the processor and the communication unit of the data forwarding device.
  • the control plane management table can be stored in the memory of the data forwarding device.
  • the storage medium may store one or more computer programs that can be read, compiled, and executed by one or more processors.
  • the computer-readable storage medium may store at least one of a data packet transmission program and a data packet transmission management program, and the data packet transmission program can be executed by one or more processors to implement any of the procedures described in the foregoing embodiments.
  • a data packet transmission method A data packet transmission management program can be executed by one or more processors to implement any of the data packet transmission management methods introduced in the foregoing embodiments.
  • the data forwarding device 110 includes a processor 111, a memory 112, and a communication bus 113 for connecting the processor 111 and the memory 112.
  • the memory 112 may be the aforementioned storage medium storing the data packet transmission program and/or the data packet transmission management program.
  • the processor 111 may read the data packet transmission program, compile and execute the data packet transmission method introduced in the foregoing embodiment.
  • the processor 111 receives and parses the data packet to obtain the original package information of the data packet.
  • the original package information includes SPI, SI and SFL Option TLV; reports the obtained original package information to the control plane; receives the newly added entries issued by the control plane Command, and add the SPI, SI, and SFL Option TLV corresponding to the original package information as an entry to the data plane management table according to the newly added command of the table entry.
  • the data plane management table uses SPI and SI as the table keywords and SFL Option TLV is used as the table content corresponding to the table key.
  • the processor 111 When the processor 111 receives the target data packet sent by the SF, it queries the data plane management table according to the SPI and SI carried in the target data packet, determines the SFL Option TLV corresponding to the target data packet, and encapsulates the target data according to the queried SFL Option TLV Packet and transmit the target data packet.
  • the processor 111 may also read the data packet transmission management program, compile and execute the data packet transmission management method introduced in the foregoing embodiment.
  • the processor 111 receives the original package information of the data packet reported on the data plane, and then calls the interface of the data plane to issue an item addition instruction under the data plane to control the data plane to add an entry corresponding to the original package information in the data plane management table .
  • the processor 111 when the processor 111 executes the packet transmission management program, it may also add an entry corresponding to the original package information to the control plane management table, and manage the entry based on the aging time of the entry Delete or retain in the control plane management table. If the entry aging time expires, the entry is deleted from the control plane management table, and after determining that the entry needs to be deleted from the control plane management table, the processor 111 calls the interface of the data plane to issue an entry delete instruction under the data plane, To control the data plane, delete the corresponding entry from the data plane management table.
  • the control plane management table uses SPI and SI as table keys, and the table content corresponding to the table keys includes SFL Option TLV.
  • the entries of the control plane management table have corresponding aging times, and the content of the newly added entries in the control plane management table is the same as the content of the newly added entries in the data plane management table.
  • the data plane will be set up with a data plane management table specifically used to store data packets SFL Option TLV and SPI, SI information in association.
  • the data plane receives a data packet from SFF or NVE and obtains the original encapsulation information of the data packet, it will first report it to the control plane, and then store a data packet in the data plane management table under the direction of the control plane.
  • the data forwarding device sets the control plane management table corresponding to the data plane management table on the control plane, and sets the aging time for each entry in the control plane management table, so that the entries in the control plane management table can be changed based on the aging time.
  • Delete management that is, realize the deletion management of entries in the data plane management table, so that invalid entries in the data plane management table are deleted without frequent interaction between the data plane and the control plane, reducing the occupation of storage resources , Optimize resource allocation.
  • the functional modules/units in the system, and the device can be implemented as software (which can be implemented by program code executable by a computing device) , Firmware, hardware and their appropriate combination.
  • 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 consist of several physical components. The components are executed cooperatively.
  • Some physical components or all physical components can be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit .
  • the computer-readable medium may include computer storage Medium (or non-transitory medium) and communication medium (or temporary medium).
  • computer storage medium includes volatile and non-volatile memory implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Sexual, removable and non-removable media.
  • Computer storage media include but are not limited to RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cassette, tape, magnetic disk storage or other magnetic storage devices, or Any other medium used to store desired information and that can be accessed by a computer.
  • communication media usually contain computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as carrier waves or other transmission mechanisms, and may include any information delivery media .
  • the present disclosure is not limited to any specific hardware and software combination.

Landscapes

  • Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

L'invention concerne un procédé de transmission de paquets de données, un procédé de gestion de transmission de paquets de données, un appareil de transmission de paquets de données, un appareil de gestion de transmission de paquets de données, un dispositif de transfert de données et un support d'informations. Le procédé de transmission de paquets de données consiste à : recevoir et analyser un paquet de données pour obtenir des informations d'encapsulation d'origine du paquet de données (S402) ; rapporter les informations d'encapsulation d'origine obtenues à un plan de commande (S404) ; appeler une interface d'un plan de données pour délivrer une instruction d'ajout d'entrée de table au plan de données (S406) ; ajouter une entrée de table à une table de gestion de plan de données conformément à l'instruction d'ajout d'entrée de table (S408) ; lors de la réception d'un paquet de données cible, interroger la table de gestion de plan de données conformément aux SPI et aux SI véhiculées dans le paquet de données cible pour déterminer une TLV d'option SFL correspondant au paquet de données cible (S410) ; et encapsuler le paquet de données cible conformément à la TLV d'option SFL obtenue par interrogation, et transmettre le paquet de données cible (S412).
PCT/CN2020/084612 2019-04-30 2020-04-14 Procédé et appareil de transmission de paquets de données, procédé et appareil de gestion de transmission de paquets de données, dispositif de transfert de paquets de données, et support d'informations WO2020220987A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910365452.2 2019-04-30
CN201910365452.2A CN111857945A (zh) 2019-04-30 2019-04-30 数据包传输、管理方法、装置及数据转发设备、存储介质

Publications (1)

Publication Number Publication Date
WO2020220987A1 true WO2020220987A1 (fr) 2020-11-05

Family

ID=72965942

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/084612 WO2020220987A1 (fr) 2019-04-30 2020-04-14 Procédé et appareil de transmission de paquets de données, procédé et appareil de gestion de transmission de paquets de données, dispositif de transfert de paquets de données, et support d'informations

Country Status (2)

Country Link
CN (1) CN111857945A (fr)
WO (1) WO2020220987A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024000135A1 (fr) * 2022-06-28 2024-01-04 新华三技术有限公司 Traitement de paquets

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104980374A (zh) * 2014-04-04 2015-10-14 华为技术有限公司 一种业务路由报文的封装方法、业务转发实体及控制平面
CN106453204A (zh) * 2015-08-07 2017-02-22 中兴通讯股份有限公司 一种处理数据报文的方法及装置
WO2018000442A1 (fr) * 2016-07-01 2018-01-04 华为技术有限公司 Procédé, appareil et système pour transférer un paquet dans un chaînage de fonctions de service (sfc)
CN108702331A (zh) * 2016-02-22 2018-10-23 思科技术公司 Sr应用段与服务功能链(sfc)报头元数据的集成
CN109088821A (zh) * 2017-06-14 2018-12-25 中兴通讯股份有限公司 报文传输方法、业务链系统以及计算机可读存储介质
US20190028384A1 (en) * 2015-10-15 2019-01-24 Cisco Technology, Inc. Application identifier in service function chain metadata

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104980374A (zh) * 2014-04-04 2015-10-14 华为技术有限公司 一种业务路由报文的封装方法、业务转发实体及控制平面
CN106453204A (zh) * 2015-08-07 2017-02-22 中兴通讯股份有限公司 一种处理数据报文的方法及装置
US20190028384A1 (en) * 2015-10-15 2019-01-24 Cisco Technology, Inc. Application identifier in service function chain metadata
CN108702331A (zh) * 2016-02-22 2018-10-23 思科技术公司 Sr应用段与服务功能链(sfc)报头元数据的集成
WO2018000442A1 (fr) * 2016-07-01 2018-01-04 华为技术有限公司 Procédé, appareil et système pour transférer un paquet dans un chaînage de fonctions de service (sfc)
CN109088821A (zh) * 2017-06-14 2018-12-25 中兴通讯股份有限公司 报文传输方法、业务链系统以及计算机可读存储介质

Also Published As

Publication number Publication date
CN111857945A (zh) 2020-10-30

Similar Documents

Publication Publication Date Title
US10237177B2 (en) Transfer device and transfer system
CN110022264B (zh) 控制网络拥塞的方法、接入设备和计算机可读存储介质
US20210328860A1 (en) Operation, Administration, and Maintenance IOAM Packet Transmission Method and Related Apparatus
US8743691B2 (en) Priority aware MAC flow control
WO2015081786A1 (fr) Procédé et appareil de mise en œuvre de notification d'abonnement
CN108141416A (zh) 一种报文处理方法、计算设备以及报文处理装置
CN104168223A (zh) 用于确定分组优先级的方法和系统
CN112491701B (zh) 转发报文方法和装置
WO2017113300A1 (fr) Procédé de détermination de route, procédé de configuration de réseau et dispositif associé
US9325613B2 (en) Communication device and address learning method
US20150229523A1 (en) Virtual extensible local area network (vxlan) system of automatically configuring multicasting tunnel for segment of virtual extensible local area network according to life cycle of end system and operating method thereof
WO2021098425A1 (fr) Procédé de politique de qos, dispositif et dispositif informatique pour la configuration de service
EP4221141A1 (fr) Procédé et appareil de régulation d'encombrement de réseau
CN111371634A (zh) 一种通信方法、装置及系统
CN109802879B (zh) 一种数据流路由方法及装置
WO2020220987A1 (fr) Procédé et appareil de transmission de paquets de données, procédé et appareil de gestion de transmission de paquets de données, dispositif de transfert de paquets de données, et support d'informations
US20150095469A1 (en) Identifier-based communication method using application program interface
KR102481403B1 (ko) 멀티캐스트 패킷 처리 방법 및 네트워크 디바이스
CN111786859A (zh) 丢包检测方法、装置及存储介质
CN115242892B (zh) 一种流标识获取方法、装置、设备及介质
CN114915519A (zh) 通信方法和通信装置
US11909624B2 (en) Communication method, apparatus, device, system, and computer-readable storage medium
CN114928589B (zh) 数据传输方法、数据传输装置、计算机可读介质及设备
US20220368562A1 (en) Method and device for advertising information in bridge network and common attributes management component
EP4322494A1 (fr) Procédé, appareil et système de transmission de données

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20799252

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20799252

Country of ref document: EP

Kind code of ref document: A1

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 18/03/2022)

122 Ep: pct application non-entry in european phase

Ref document number: 20799252

Country of ref document: EP

Kind code of ref document: A1