CN116208549A - Data transmission method and device and WAN port aggregation equipment - Google Patents

Data transmission method and device and WAN port aggregation equipment Download PDF

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Publication number
CN116208549A
CN116208549A CN202111443218.0A CN202111443218A CN116208549A CN 116208549 A CN116208549 A CN 116208549A CN 202111443218 A CN202111443218 A CN 202111443218A CN 116208549 A CN116208549 A CN 116208549A
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wan
data packet
communication
network card
port aggregation
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CN202111443218.0A
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付永纬
云翔
唐厚成
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Baicells Technologies Co Ltd
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Baicells Technologies Co Ltd
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Priority to CN202111443218.0A priority Critical patent/CN116208549A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/24—Multipath
    • H04L45/245—Link aggregation, e.g. trunking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/12—Avoiding congestion; Recovering from congestion
    • H04L47/125—Avoiding congestion; Recovering from congestion by balancing the load, e.g. traffic engineering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2212/00—Encapsulation of packets
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/50—Reducing energy consumption in communication networks in wire-line communication networks, e.g. low power modes or reduced link rate

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

Abstract

The application discloses a data transmission method, a data transmission device and WAN port aggregation equipment, and relates to the technical field of wireless communication, wherein the method is applied to first WAN port aggregation equipment and comprises the following steps: encapsulating the received first data into at least one first IP data packet; monitoring communication states of all communication links between the WAN network card of the first WAN port aggregation device and the WAN network card of the second WAN port aggregation device in real time; and respectively distributing a WAN (wide area network) card for each first IP data packet according to the communication state of each communication link so as to transmit the first IP data packet on the communication link where the WAN card is positioned. According to the scheme, the WAN port is allocated to the data independently of the routing rule or the weight, the data allocation is performed based on the real-time state of the WAN port, and the data allocation effect is improved on the basis of meeting the communication bandwidth superposition effect.

Description

Data transmission method and device and WAN port aggregation equipment
Technical Field
The present disclosure relates to the field of wireless communications technologies, and in particular, to a data transmission method and apparatus, and a WAN port aggregation device.
Background
Conventional multi-wide area network (Wide Area Network, WAN) aggregation devices are implemented by means of routing techniques. Different network cards set different routing rules, and different flows are led into different network cards. Or different weight ratios are set for different network cards, and the flow is distributed according to the weights. Or polling between network cards. And then different transmission control protocols (Transmission Control Protocol, TCP) are connected with sessions and distributed to different WAN ports, a plurality of TCP sessions are used for transmitting data simultaneously, and different sessions are loaded on different WAN ports, so that the effect of total communication bandwidth superposition is achieved, however, the real-time state of each WAN port is not considered in the data flow distribution in a mode of carrying out bandwidth superposition depending on routing rules or weights, and the distribution effect is poor.
Disclosure of Invention
The purpose of the application is to provide a data transmission method, a data transmission device and WAN port aggregation equipment, so as to solve the problem of poor data flow distribution effect in the prior art.
In order to achieve the above object, the present application provides a data transmission method, applied to a first WAN port aggregation device, the method including:
encapsulating the received first data into at least one first IP data packet;
monitoring communication states of all communication links between the WAN network card of the first WAN port aggregation device and the WAN network card of the second WAN port aggregation device in real time;
and respectively distributing a WAN (wide area network) card for each first IP data packet according to the communication state of each communication link so as to transmit the first IP data packet on the communication link where the WAN card is positioned.
Optionally, the communication state includes at least one of:
communication quality;
a communication speed;
whether the communication is interrupted.
Optionally, allocating a WAN network card to each of the first IP packets, including:
and distributing the WAN network card for each first IP data packet based on a load balancing technology and the communication state of each communication link.
Optionally, the method further comprises:
under the condition that the communication link where the WAN network card allocated for the first IP data packet is located is monitored to be interrupted, reallocating the WAN network card for the first IP data packet in the WAN network cards on the uninterrupted communication links according to the communication state of each communication link;
and transmitting the first IP data packet on a communication link where the reassigned WAN network card is located.
Optionally, the method further comprises:
and in a first time period after the first IP data packet is transmitted, receiving a confirmation message sent by second WAN port aggregation equipment on a communication link of the first WAN port aggregation equipment for transmitting the first IP data packet, wherein the confirmation message is used for indicating that the second WAN port aggregation equipment successfully receives the first IP data packet.
Optionally, the method further comprises:
and under the condition that the second WAN port aggregation equipment does not receive the confirmation message sent by the first WAN port aggregation equipment on the communication link of the first IP data packet after the first IP data packet is transmitted, reallocating the WAN network card for the first IP data packet according to the communication state of each communication link so as to retransmit the first IP data packet on the communication link where the reallocated WAN network card is positioned.
Optionally, the method further comprises:
sending a second IP data packet to the second WAN port aggregation equipment, wherein a selection field of the second IP data packet comprises an NGMWAN parameter;
under the condition that a third IP data packet fed back by the second WAN port aggregation equipment is received, establishing communication connection based on an NGMWAN virtual network card with the second WAN port aggregation equipment; wherein the selection field of the third IP packet includes an NGMWAN parameter.
The embodiment of the application also provides a data transmission device, which is applied to the first WAN port aggregation equipment and comprises:
the packaging module is used for packaging the received first data into at least one first IP data packet;
the monitoring module is used for monitoring the communication state of each communication link between the WAN network card of the first WAN port aggregation device and the WAN network card of the second WAN port aggregation device in real time;
and the first distribution module is used for distributing the WAN network card for each first IP data packet according to the communication state of each communication link so as to transmit the first IP data packet on the communication link where the WAN network card is positioned.
The embodiment of the application also provides a WAN port aggregation device, which comprises: a processor, a memory and a program stored on the memory and executable on the processor, which when executed by the processor implements the steps of the data transmission method as described above.
The embodiments of the present application also provide a readable storage medium having a program stored thereon, which when executed by a processor, implements the steps of the data transmission method as described above.
The technical scheme of the application has at least the following beneficial effects:
the embodiment of the application is applied to a data transmission method of first WAN port aggregation equipment, and firstly, received first data are packaged into at least one first IP data packet; secondly, monitoring communication states of all communication links between the WAN network card of the first WAN port aggregation device and the WAN network card of the second WAN port aggregation device in real time; and finally, respectively distributing a WAN (wide area network) card for each first IP data packet according to the communication state of each communication link so as to transmit the first IP data packet on the communication link where the WAN card is positioned. Thus, the real-time self-adaptive switching function among the multiple WAN ports is realized, and the effect of data distribution is improved.
Drawings
Fig. 1 is a flowchart of an embodiment of a data transmission method according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of an embodiment of a data transmission device according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a WAN port aggregation device according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.
Before describing embodiments of the present application in detail, here, description is made of related art points:
and (3) a WAN: wide area networks, also known as extranets, public networks, are remote networks that connect computers in local or metropolitan area networks in different regions. Typically span a large physical range, ranging from tens of kilometers to thousands of kilometers, it can connect multiple areas, cities and countries, or span several continents and provide long-range communications, forming an internationally long-range network, not equivalent to the internet.
Routing technology: a technique for forwarding and exchanging a plurality of information on a network.
TCP: the transmission control protocol is a connection-oriented, reliable, byte-stream-based transport layer communication protocol.
The data transmission method, the data transmission device and the WAN port aggregation equipment provided by the embodiment of the application are described in detail through specific embodiments and application scenes thereof with reference to the accompanying drawings.
Fig. 1 is a schematic flow chart of a data transmission method according to an embodiment of the present application, where the method is applied to a first WAN port aggregation device, and the first WAN port aggregation device includes a plurality of WAN ports, and the method includes:
step 101, encapsulating the received first data into at least one first IP data packet;
here, it should be noted that the encapsulation process may include adding a protocol identifier, a frame type, a frame length, and the like, and by encapsulating the first data into one or more first IP data packets, different IP packets may be distinguished during the transmission over the communication link.
Here, it should also be noted that the first data may be any traffic type data, such as 4G, 5G, WIFI, etc., that is, the WAN port aggregation device applying the method of the embodiment of the present application may support bandwidth superposition of multiple traffic types of data, so that a higher level of traffic aggregation capability may be provided for a specific service communication.
102, monitoring communication states of all communication links between the WAN network card of the first WAN port aggregation device and the WAN network card of the second WAN port aggregation device in real time;
and step 103, respectively allocating a WAN (wide area network) card to each first IP data packet according to the communication state of each communication link so as to transmit the first IP data packet on the communication link where the WAN card is positioned.
Here, it should be noted that, the first WAN port aggregation device applying the data transmission method of the embodiment of the present application supports the next generation multiple wide area network (Next Generation Multi Wide Area Network, NGMWAN) technology, and the bottom multiple actual WAN network cards of the first WAN aggregation device are encapsulated, virtualized into a unified network card, abbreviated as a virtual network card, and the received first data is automatically guided to the virtual network card and intelligently distributed among the bottom multiple WAN network cards through the virtual network card.
That is, after the virtual network card receives the first data, the virtual network card encapsulates the first data into one or more first IP packets, and then dynamically and intelligently allocates an actual network card for each first IP packet according to the communication state of the communication link, instead of allocating according to a fixed weight ratio or a routing rule; for example, the first IP packet may be allocated according to a real-Time Round Trip Time (RTT) parameter of each WAN, and the first IP packet is always allocated to the WAN with the current minimum RTT, so as to implement real-Time optimal multi-WAN traffic allocation, so as to maximize bandwidth resources of all WANs.
According to the data transmission method, firstly, received first data are packaged into at least one first IP data packet; secondly, monitoring communication states of all communication links between the WAN network card of the first WAN port aggregation device and the WAN network card of the second WAN port aggregation device in real time; and finally, respectively distributing a WAN (wide area network) card for each first IP data packet according to the communication state of each communication link so as to transmit the first IP data packet on the communication link where the WAN card is positioned. Thus, the real-time self-adaptive switching function among the multiple WAN ports is realized, and the effect of data distribution is improved.
As an alternative implementation, the communication state includes at least one of:
communication quality;
a communication speed;
whether the communication is interrupted.
Specifically, the communication quality includes, but is not limited to, communication delay, bandwidth, throughput, and the like.
As an optional implementation manner, in step 103, allocating a WAN network card to each of the first IP packets includes:
and distributing the WAN network card for each first IP data packet based on a load balancing technology and the communication state of each communication link.
Load balancing is established on the existing network structure, and the method is used for expanding the bandwidth of network equipment and servers, increasing throughput, enhancing network data processing capacity and improving flexibility and usability of the network. Load balancing means that the load balancing is distributed to a plurality of operation units to execute, such as a WEB server, an FTP server, an enterprise key application server, an enterprise key task server and the like, so as to jointly complete a work task.
That is, in this alternative implementation manner, when WAN network cards are allocated to each first IP packet, firstly, a plurality of communication links with better communication states are selected, and secondly, different network cards are allocated to each first IP packet in the selected communication links by using a load balancing technology, so as to realize the maximum utilization of bandwidth resources of all WAN network cards.
Further, as an alternative implementation, the method further includes:
under the condition that the communication link where the WAN network card allocated for the first IP data packet is located is monitored to be interrupted, reallocating the WAN network card for the first IP data packet in the WAN network cards on the uninterrupted communication links according to the communication state of each communication link;
and transmitting the first IP data packet on a communication link where the reassigned WAN network card is located.
That is, the virtual network card in the first WAN port aggregation device monitors the communication state of each communication link in real time, so that whether the network card is interrupted or not can be found in time; when the communication link where the WAN network card allocated for the first IP data packet is located is monitored to be interrupted, the data packet on the communication link is timely allocated to the communication link where other WAN network cards are located, and the allocation and switching functions of the data traffic are completely realized by the automatic intelligent monitoring management of the virtual network card, and are irrelevant to the routing rule, and the routing rule is not required to be changed, so that the problem of frequently changing the routing rule can be effectively solved, and on one hand, the problem of rapid reduction of the running stability of equipment due to frequent loving of the routing rule is avoided; on the other hand, fast failover can be achieved, and millisecond-level switching can be achieved.
As an alternative implementation, the method further includes:
and in a first time period after the first IP data packet is transmitted, receiving a confirmation message sent by second WAN port aggregation equipment on a communication link of the first WAN port aggregation equipment for transmitting the first IP data packet, wherein the confirmation message is used for indicating that the second WAN port aggregation equipment successfully receives the first IP data packet.
Here, it should be noted that, the existing WAN port aggregation device only sends out the data packet according to the routing rule, and it is completely unknown whether the data packet is received by the opposite terminal, and the guarantee of communication quality is lacking; the WAN port aggregation device applying the method of the embodiment of the present application is a dual-side device, and the sending end needs to process, and the receiving end needs to process, so that reliable communication can be achieved.
Specifically, in this optional implementation manner, after receiving the first IP packet sent by the first WAN port aggregation device, the receiving end further uses a communication link that sends the first IP packet to feed back a confirmation message to the first WAN port aggregation device, so as to inform the first WAN port aggregation device that the first WAN port aggregation device has successfully received the first IP packet, thereby improving reliability of data transmission.
Also, as another alternative implementation, the method further includes:
and under the condition that the second WAN port aggregation equipment does not receive the confirmation message sent by the first WAN port aggregation equipment on the communication link of the first IP data packet after the first IP data packet is transmitted, reallocating the WAN network card for the first IP data packet according to the communication state of each communication link so as to retransmit the first IP data packet on the communication link where the reallocated WAN network card is positioned.
That is, if the first WAN port aggregation device does not receive the acknowledgement message fed back by the peer end within the first duration after sending the first IP packet, it considers that the transmission of the first IP packet fails, and needs to retransmit the first IP packet, so that a communication link needs to be reassigned to the first IP packet to minimize the occurrence of the packet loss phenomenon, where the reassigned communication link may be the same as or different from the communication link that sent the first IP packet before.
Further, as an alternative implementation, the method further includes:
sending a second IP data packet to the second WAN port aggregation equipment, wherein a selection field of the second IP data packet comprises an NGMWAN parameter;
under the condition that a third IP data packet fed back by the second WAN port aggregation equipment is received, establishing communication connection based on an NGMWAN virtual network card with the second WAN port aggregation equipment; wherein the selection field of the third IP packet includes an NGMWAN parameter.
Here, it should be noted that, since the NGMWAN technology is an end-to-end technology, both the transmitting end device (the first WAN port aggregation device) and the receiving end device (the second WAN port aggregation device) need to have NGMWAN functions, before implementing a communication link based on the NGMWAN virtual network card between the transmitting end device and the receiving end device, it is necessary to determine whether both have NGMWAN functions. Therefore, firstly, the transmitting terminal equipment transmits a second IP data packet to the receiving terminal equipment, wherein the selection (option) field of the packet head of the IP data packet has an NGMWAN parameter so as to inform the receiving terminal equipment of having an NGMWAN communication function; after receiving the second IP data packet, if the receiving end equipment also supports the NGMWAN communication function, the receiving end equipment firstly checks whether an option field of an IP packet header has an NGMWAN parameter in the received second IP data packet, if so, the receiving end equipment knows that the sending end equipment supports the NGMWAN communication function, and at the moment, feeds back a third IP data packet of which the option field of the IP packet header has the NGMWAN parameter to the sending end equipment so as to inform the sending end equipment that the receiving end equipment supports the NGMWAN communication function, and after receiving the third IP data packet, the sending end equipment checks that the option field of the packet header of the third IP data packet has the NGMWAN parameter and establishes communication connection based on an NGMWAN virtual network card with the receiving end equipment; otherwise, the communication is carried out according to the original routing rule without passing through the NGMWAN virtual network card.
Specifically, when establishing a communication connection based on the NGMWAN virtual network card, the number of WAN ports of the sending end device and the number of WAN ports of the receiving end device may be determined, if the number of WAN ports of the sending end device is a and the number of WAN ports of the receiving end device is B, the number of communication links between the sending end device and the receiving end device is a×b; after receiving the first data, a plurality of communication links transmitting the IP data packet encapsulated by the first data may be selected among the a×b communication links based on the data amount of the first data and the communication state of the communication links.
Further, for the receiving end device (the second WAN port aggregation device), after receiving a plurality of first IP data packets, the NGMWAN virtual network card of the receiving end device performs out-of-order packet processing, so as to ensure that the data packets transferred to an upper layer do not have the out-of-order packet, and then further decapsulate the processed first IP data packets, thereby recovering original data (first data) and sending the first data to the upper layer application.
It can be seen that the upper layer communication of the WAN port aggregation device is no longer directly associated with the bottom layer network card, and the upper layer communication is only associated with one single NGMWAN virtual network card. The upper layer communication and the traffic aggregation are decoupled, the upper layer communication does not need to pay attention to the details of the traffic aggregation, and the traffic aggregation is transparent to the upper layer communication. Traffic distribution and routing decoupling greatly simplify the setting of routing rules. In order to distribute the routing rules of the traffic in the traditional multi-WAN, in order to distribute the traffic identification rules of the traffic, such as packet filtering firewall (iptables) rules under a Linux platform for identifying the traffic, no setting is needed in the NGMWAN, and no dynamic modification is needed. The flow is led into the NGMWAN virtual network card, the virtual network card automatically and intelligently distributes among a plurality of WANs at the bottom layer, and the optimal distribution in real time is intelligently carried out according to the real-time state of each WAN, so that the distribution effect is improved.
In addition, before implementing the data transmission method of the embodiment of the present application, some special parameters of the NGMWAN virtual network card in the WAN port aggregation device to which the embodiment of the present application is applied need to be modified and adjusted, and the standard IP link command cannot be modified and adjusted, so that an nw configuration application program needs to be provided additionally, and the nw command is executed to configure and manage the special parameters of the virtual network card. And data interaction is carried out between the nw application program and the NGMWAN virtual network card through an ioctl interface of the Linux standard.
Specifically, the specific parameters include at least one of the following, but not limited to: tunnel type (whether server or client); counting the flow of the network card; the ping interval period (the server does not ping the client, only responds to the ping of the client, and does not need to set the parameter, but the server can check whether the client is idle overtime, and the client is not received when the idle overtime time exceeds the idle overtime time, and the client can be deleted when the client has been in communication overtime for a long time; the virtual network card receives parameters such as the number of the maximum data packets which can be processed in batch at a time.
That is, the data transmission method of the embodiment of the present application further includes: and configuring parameters for the NGMWAN virtual network card by running an nw configuration application program.
In the data transmission method of the alternative embodiment, the plurality of actual WAN network cards at the bottom layer of the WAN port aggregation device are packaged by the packaging thought of the virtual network card and virtualized into one unified network card for management, so that the bandwidth superposition function of single connection session and the real-time self-adaptive switching function between the multiple WAN ports intelligently according to the real-time states (communication link states) of the multiple WANs are realized for any traffic types.
As shown in fig. 2, the embodiment of the present application further provides a data transmission apparatus, which is applied to the first WAN port aggregation device, including:
an encapsulation module 201, configured to encapsulate the received first data into at least one first IP data packet;
a monitoring module 202, configured to monitor, in real time, a communication state of each communication link between the WAN network card of the first WAN port aggregation device and the WAN network card of the second WAN port aggregation device;
the first allocation module 203 is configured to allocate a WAN network card to each of the first IP data packets according to the communication status of each of the communication links, so as to transmit the first IP data packets on the communication link where the WAN network card is located.
In the data transmission device of the embodiment of the present application, first, the encapsulation module 201 encapsulates the received first data into at least one first IP packet; secondly, the monitoring module 202 monitors the communication state of each communication link between the WAN network card of the first WAN port aggregation device and the WAN network card of the second WAN port aggregation device in real time; finally, the first allocation module 203 allocates a WAN network card to each of the first IP packets according to the communication status of each of the communication links, so as to transmit the first IP packets on the communication link where the WAN network card is located. Thus, the real-time self-adaptive switching function among the multiple WAN ports is realized, and the effect of data distribution is improved.
Optionally, the communication state includes at least one of:
communication quality;
a communication speed;
whether the communication is interrupted.
Optionally, the first allocation module 202 is specifically configured to:
and distributing the WAN network card for each first IP data packet based on a load balancing technology and the communication state of each communication link.
Further, the apparatus further comprises:
the second allocation module is used for reallocating the WAN network card for the first IP data packet in the WAN network cards on the uninterrupted communication links according to the communication state of each communication link under the condition that the communication link where the WAN network card allocated for the first IP data packet is located is monitored to be interrupted;
and the transmission module is used for transmitting the first IP data packet on the communication link where the reassigned WAN network card is located.
Further, the apparatus further comprises:
the receiving module is configured to receive, in a first duration after transmission of a first IP packet, a confirmation message sent by a second WAN port aggregation device on a communication link through which the first WAN port aggregation device transmits the first IP packet, where the confirmation message is used to indicate that the second WAN port aggregation device successfully receives the first IP packet.
Further, the apparatus further comprises:
and the third allocation module is used for reallocating the WAN network card for the first IP data packet according to the communication state of each communication link under the condition that the second WAN port aggregation equipment does not receive the confirmation message sent by the first WAN port aggregation equipment on the communication link of the first IP data packet, so as to retransmit the first IP data packet on the communication link where the reallocated WAN network card is located, after the first IP data packet is transmitted in the first time period.
Further, the apparatus further comprises:
a sending module, configured to send a second IP packet to the second WAN port aggregation device, where a selection field of the second IP packet includes an NGMWAN parameter;
the establishing connection module is used for establishing communication connection based on an NGMWAN virtual network card with the second WAN port aggregation equipment under the condition that a third IP data packet fed back by the second WAN port aggregation equipment is received; wherein the selection field of the third IP packet includes an NGMWAN parameter.
As shown in fig. 3, an embodiment of the present application further provides a WAN port aggregation device, including: the processor 300, the memory 320, and the program stored in the memory 320 and capable of running on the processor 300, when executed by the processor, implement the respective processes of the data transmission method embodiment described above, and achieve the same technical effects, and in order to avoid repetition, the description is omitted herein.
The transceiver 310 is used for receiving and transmitting data under the control of the processor 300.
Wherein in fig. 3, a bus architecture may comprise any number of interconnected buses and bridges, and in particular, one or more processors represented by processor 300 and various circuits of memory represented by memory 320, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. Transceiver 310 may be a number of elements, including a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium.
The processor 300 is responsible for managing the bus architecture and general processing, and the memory 320 may store data used by the processor 300 in performing operations.
The embodiment of the application further provides a readable storage medium, on which a program is stored, and when the program is executed by a processor, the program realizes each process of the data transmission method embodiment, and the same technical effects can be achieved, so that repetition is avoided, and no further description is provided here. Wherein the readable storage medium is selected from Read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic disk or optical disk.
Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
While the foregoing is directed to the preferred embodiments of the present application, it should be noted that modifications and adaptations to those embodiments may occur to one skilled in the art and that such modifications and adaptations are intended to be comprehended within the scope of the present application without departing from the principles set forth herein.

Claims (10)

1. A method of data transmission, for use with a first WAN port aggregation device, the method comprising:
encapsulating the received first data into at least one first IP data packet;
monitoring communication states of all communication links between the WAN network card of the first WAN port aggregation device and the WAN network card of the second WAN port aggregation device in real time;
and respectively distributing a WAN (wide area network) card for each first IP data packet according to the communication state of each communication link so as to transmit the first IP data packet on the communication link where the WAN card is positioned.
2. The method of claim 1, wherein the communication state comprises at least one of:
communication quality;
a communication speed;
whether the communication is interrupted.
3. The method of claim 1, wherein assigning a WAN network card to each of the first IP packets, respectively, comprises:
and distributing the WAN network card for each first IP data packet based on a load balancing technology and the communication state of each communication link.
4. The method according to claim 1, wherein the method further comprises:
under the condition that the communication link where the WAN network card allocated for the first IP data packet is located is monitored to be interrupted, reallocating the WAN network card for the first IP data packet in the WAN network cards on the uninterrupted communication links according to the communication state of each communication link;
and transmitting the first IP data packet on a communication link where the reassigned WAN network card is located.
5. The method according to claim 1, wherein the method further comprises:
and in a first time period after the first IP data packet is transmitted, receiving a confirmation message sent by second WAN port aggregation equipment on a communication link of the first WAN port aggregation equipment for transmitting the first IP data packet, wherein the confirmation message is used for indicating that the second WAN port aggregation equipment successfully receives the first IP data packet.
6. The method according to claim 1, wherein the method further comprises:
and under the condition that the second WAN port aggregation equipment does not receive the confirmation message sent by the first WAN port aggregation equipment on the communication link of the first IP data packet after the first IP data packet is transmitted, reallocating the WAN network card for the first IP data packet according to the communication state of each communication link so as to retransmit the first IP data packet on the communication link where the reallocated WAN network card is positioned.
7. The method according to claim 1, wherein the method further comprises:
sending a second IP data packet to the second WAN port aggregation equipment, wherein a selection field of the second IP data packet comprises an NGMWAN parameter;
under the condition that a third IP data packet fed back by the second WAN port aggregation equipment is received, establishing communication connection based on an NGMWAN virtual network card with the second WAN port aggregation equipment; wherein the selection field of the third IP packet includes an NGMWAN parameter.
8. A data transmission apparatus, for use with a first WAN port aggregation device, comprising:
the packaging module is used for packaging the received first data into at least one first IP data packet;
the monitoring module is used for monitoring the communication state of each communication link between the WAN network card of the first WAN port aggregation device and the WAN network card of the second WAN port aggregation device in real time;
and the first distribution module is used for distributing the WAN network card for each first IP data packet according to the communication state of each communication link so as to transmit the first IP data packet on the communication link where the WAN network card is positioned.
9. A WAN port aggregation device, comprising: a processor, a memory and a program stored on the memory and executable on the processor, which when executed by the processor, implements the steps of the data transmission method according to any one of claims 1 to 7.
10. A readable storage medium, characterized in that the readable storage medium has stored thereon a program which, when executed by a processor, implements the steps of the data transmission method according to any one of claims 1 to 7.
CN202111443218.0A 2021-11-30 2021-11-30 Data transmission method and device and WAN port aggregation equipment Pending CN116208549A (en)

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Application Number Priority Date Filing Date Title
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CN116208549A true CN116208549A (en) 2023-06-02

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