CN111367620B - Virtual network implementation method and electronic equipment - Google Patents
Virtual network implementation method and electronic equipment Download PDFInfo
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- CN111367620B CN111367620B CN202010151833.3A CN202010151833A CN111367620B CN 111367620 B CN111367620 B CN 111367620B CN 202010151833 A CN202010151833 A CN 202010151833A CN 111367620 B CN111367620 B CN 111367620B
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- 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
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06N—COMPUTING ARRANGEMENTS BASED ON SPECIFIC COMPUTATIONAL MODELS
- G06N20/00—Machine learning
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2101/00—Indexing scheme associated with group H04L61/00
- H04L2101/60—Types of network addresses
- H04L2101/618—Details of network addresses
- H04L2101/622—Layer-2 addresses, e.g. medium access control [MAC] addresses
Abstract
The application discloses a virtual network implementation method and electronic equipment, in the scheme, after a first data packet sent by first virtual equipment is obtained, the first data packet is learned, and based on a learning result, an obtained second data packet based on feedback of the first data packet is sent to the first virtual equipment, so that whether the first data packet is sent by a first layer virtual machine or sent by a second layer virtual equipment, a feedback data packet can be obtained by the learning result obtained by learning the first data packet, and the feedback data packet can be sent to the first layer or the second layer virtual equipment for sending the first data packet, and multi-layer virtualization is realized.
Description
Technical Field
The present application relates to the field of communications, and in particular, to a virtual network implementation method and an electronic device.
Background
SR-IOV (Single Root I/O Virtualization AND SHARING) is an intel hardware-based network virtualization device that enables each physical network card to be virtualized out of multiple virtual network cards.
Since the flow is introduced on the virtual controller of the network card based on the address of the virtual network card, if the virtual device is created again in the virtual machine created by the virtual network card, the address of the virtual device is the address of the virtual network card, and the flow cannot be introduced to the virtual device based on the address, and thus, the multi-layer virtualization cannot be realized.
Disclosure of Invention
In view of this, the application provides a virtual network implementation method and an electronic device, and the specific scheme is as follows:
a virtual network implementation method, comprising:
Acquiring a first data packet, wherein the first data packet is sent by a first virtual device, and the first virtual device is a first layer virtual machine created based on a first virtual network card in a virtual network, or the first virtual device is a second layer virtual device in the first layer virtual machine created based on the first virtual network card in the virtual network;
Learning the first data packet based on the first data packet, and determining a learning result, wherein the learning result at least comprises the MAC address of the first virtual device sending the first data packet;
And acquiring a second data packet fed back based on the first data packet, and sending the second data packet to the first virtual device based on the learning result.
Further, the method further comprises the following steps:
determining whether a second-layer virtual device inside the first-layer virtual machine is included in the virtual network;
If the virtual network comprises second-layer virtual equipment in the first-layer virtual machine, when a first data packet is sent through the second-layer virtual equipment, learning the first data packet based on the first data packet;
and if the virtual network only comprises the first-layer virtual machine, determining the MAC address of the first-layer virtual machine based on the pre-stored MAC address information when the first data packet is sent through the first-layer virtual machine.
Further, the obtaining a second data packet fed back based on the first data packet, and sending the second data packet to the first virtual device based on the learning result, includes:
Acquiring a second data packet fed back based on the first data packet;
Determining whether the MAC address indicated according to the learning result can determine at least one virtual device;
If the MAC address indicated by the learning result can be determined to be not less than one virtual device, determining the first virtual device corresponding to the MAC address at the time of determining the learning result according to the time of determining the learning result, and sending the second data packet to the first virtual device.
Further, the obtaining a second data packet fed back based on the first data packet, and sending the second data packet to the first virtual device based on the learning result, includes:
determining a sending strategy for sending feedback data to the first virtual equipment, wherein the sending strategy at least comprises a first sending mode;
And acquiring a second data packet fed back based on the first data packet, and sending the second data packet to the first virtual device at least based on the first sending mode, wherein the first sending mode at least comprises sending feedback data based on a learning result obtained by learning and determining the first data packet.
Further, the obtaining a second data packet fed back based on the first data packet, and sending the second data packet to the first virtual device based on the learning result, includes:
if the transmission strategy is at least one transmission mode with a priority order, determining a first transmission mode of a first priority in the priority order based on the environment information of the virtual network;
And acquiring a second data packet fed back based on the first data packet, and transmitting the second data packet to the first virtual equipment based on the first transmission mode.
Further, the method further comprises the following steps:
If the second data packet is not sent to the first virtual device based on the first sending mode, determining a second sending mode of a second priority in the priority sequence, and sending the second data packet to the first virtual device based on the second sending mode;
the second sending mode is as follows: and sending feedback data based on the virtual local area network or sending feedback data based on the pre-stored MAC address information.
Further, the method further comprises the following steps:
determining whether a data packet learning function for the first virtual network card is started;
If the data packet learning function for the first virtual network card is started, after a first data packet is acquired, the first data packet is learned based on the first data packet, so that a learning result is determined.
An electronic device, comprising:
The method comprises the steps that an acquisition unit is used for acquiring a first data packet by a user, wherein the first data packet is sent by first virtual equipment, and the first virtual equipment is a first-layer virtual machine which is created based on a first virtual network card in a virtual network, or the first virtual equipment is second-layer virtual equipment which is created based on the first virtual network card in the virtual network and is inside the first-layer virtual machine;
the learning unit is used for learning the first data packet based on the first data packet, and determining a learning result, wherein the learning result at least comprises the MAC address of the first virtual device for transmitting the first data packet;
And the sending unit is used for obtaining a second data packet fed back based on the first data packet and sending the second data packet to the first virtual equipment based on the learning result.
Further, the method further comprises the following steps:
a determination unit configured to determine whether a second-layer virtual device inside the first-layer virtual machine is included in the virtual network,
If the virtual network comprises second-layer virtual equipment in the first-layer virtual machine, when a first data packet is sent through the second-layer virtual equipment, learning the first data packet based on the first data packet; and if the virtual network only comprises the first-layer virtual machine, determining the MAC address of the first-layer virtual machine based on the pre-stored MAC address information when the first data packet is sent through the first-layer virtual machine.
Further, the sending unit is configured to obtain a second data packet fed back based on the first data packet, send the second data packet to the first virtual device based on the learning result, and include:
The sending unit is used for obtaining a second data packet fed back based on the first data packet, and determining whether the MAC address indicated according to the learning result can determine at least one virtual device; if the MAC address indicated by the learning result can be determined to be not less than one virtual device, determining the first virtual device corresponding to the MAC address at the time of determining the learning result according to the time of determining the learning result, and sending the second data packet to the first virtual device.
A storage medium for storing at least one set of instructions;
The set of instructions is for being invoked and at least performing a virtual network implementation method as in any of the above.
According to the virtual network implementation method and the electronic device disclosed by the application, the first data packet is acquired, the first data packet is sent by the first virtual device, the first virtual device is a first-layer virtual machine created based on the first virtual network card in the virtual network, or the first virtual device is a second-layer virtual device in the first-layer virtual machine created based on the first virtual network card in the virtual network, the first data packet is learned based on the first data packet, the learning result is determined, the learning result at least comprises the MAC address of the first virtual device sending the first data packet, the second data packet fed back based on the first data packet is acquired, and the second data packet is sent to the first virtual device based on the learning result. According to the scheme, after the first data packet sent by the first virtual device is obtained, the first data packet is learned, and the obtained second data packet based on the feedback of the first data packet is sent to the first virtual device based on the learning result, so that whether the first data packet is sent by the first layer virtual machine or the second layer virtual device, the feedback data packet can be obtained by the learning result obtained by learning the first data packet, and the feedback data packet can be sent to the first layer or the second layer virtual device for sending the first data packet, and multi-layer virtualization is realized.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flowchart of a virtual network implementation method disclosed in an embodiment of the present application;
fig. 2 is a flowchart of a virtual network implementation method disclosed in an embodiment of the present application;
fig. 3 is a flowchart of a virtual network implementation method disclosed in an embodiment of the present application;
fig. 4 is a flowchart of a virtual network implementation method disclosed in an embodiment of the present application;
fig. 5 is a schematic structural diagram of an electronic 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 completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The application discloses a virtual network implementation method, a flow chart of which is shown in figure 1, comprising the following steps:
step S11, acquiring a first data packet, wherein the first data packet is sent by first virtual equipment, and the first virtual equipment is a first layer virtual machine created based on a first virtual network card in a virtual network or is second layer virtual equipment in the first layer virtual machine created based on the first virtual network card in the virtual network;
Step S12, learning the first data packet based on the first data packet, and determining a learning result, wherein the learning result at least comprises the MAC address of the first virtual device for transmitting the first data packet;
the virtual network implementation method disclosed by the embodiment is implemented on the basis of a physical network card.
In order to improve the utilization rate of network cards, the existing MEC mobile edge computing platform solves the problem by using multi-stage network virtualization, namely, each physical network card virtualizes a plurality of virtual network cards. Creating a virtual machine, namely a first layer virtual machine, by using the virtual network card; and carrying out network virtualization again in the first-layer virtual machine, namely creating virtual equipment in the first-layer virtual machine so as to realize the generation of the second-layer virtual equipment. The second layer of virtual devices may be virtual machines or containers.
When the first layer virtual machine is created through the virtual network card, the flow is imported on the virtual controller of the virtual network card according to the MAC address of the virtual network card, if the network virtualization is started on the virtual network card, the first layer virtual machine is created, and the MAC address of the first layer virtual machine is the MAC address of the virtual network card, so that when data transmission is carried out, data feedback can be directly carried out according to the MAC address of the first layer virtual machine; if the second-layer virtual device is built in the first-layer virtual machine built by the virtual network card, the address of the second-layer virtual device is the address of the virtual network card, and according to the address, the traffic cannot be imported into the second-layer virtual device, and the second-layer virtual device can only transmit data to the first-layer virtual machine and cannot reach the second-layer virtual device. Therefore, multi-layer virtualization cannot be achieved.
To solve this problem, when the physical network card acquires the first data packet sent by the first virtual device, the first data packet is learned to determine the MAC address of the first virtual device that sent the first data packet, whether the first virtual device is a first layer virtual device or a second layer virtual device.
The first data packet sent by the first virtual device further comprises the address of the first virtual device sending the first data packet, so that the physical network card can learn the address of the first virtual device from the first data packet after acquiring the first data packet.
If the first virtual device is a first layer virtual machine, the address included in the first data packet is the address of the first layer virtual machine, namely a first-level MAC address; if the first virtual device is a second layer virtual device, the address included in the first data packet is an address of the second layer virtual device, that is, a second-level MAC address, where the second-level MAC address is a specific address of the second layer virtual device that is used to facilitate the physical network card to explicitly send out the data packet.
The physical network card learns the first data packet, namely learns the MAC address of the first virtual device sending the first data packet from the message of the sent first data packet, and can learn not only the MAC address of the virtual network card, but also the original MAC address of the virtual device sending the message, namely a primary MAC address or a secondary MAC address.
After learning the original MAC address of the first virtual device, the MAC address needs to be stored, so that when the physical network card receives feedback based on the first data packet, the physical network card can return to the first virtual device according to the stored MAC address.
After the physical network card acquires the first data packet and learns the first data packet to determine the MAC address of the first virtual device of the first data packet, the physical network card sends the first data packet so as to realize data transmission, thereby completing data transmission after acquiring the feedback based on the first data packet.
And S13, acquiring a second data packet fed back based on the first data packet, and transmitting the second data packet to the first virtual equipment based on the learning result.
After the physical network card sends the first data packet sent by the first virtual device, the physical network card receives the data packet fed back by other devices or networks based on the first data packet, namely the second data packet.
After the physical network card receives the second data packet, the second data packet is analyzed to determine that the second data packet is based on the feedback of the first data packet, then the MAC address corresponding to the first data packet is found from the stored record, and then the second data packet is fed back to the first virtual device corresponding to the MAC address according to the MAC address, so that the complete process of data transmission is realized.
Since the first packet learns the MAC address of the first virtual device itself that transmits the first packet when learning the first packet, the first packet can be transmitted to the first virtual device based on the MAC of the first virtual device itself when the first packet is fed back, regardless of whether the first virtual device is the first layer virtual machine or the second layer virtual device.
Further, the method may further include:
When the first data packet is learned, the first data packet not only can learn the MAC address of the first virtual device, but also can determine the address of the first virtual network card corresponding to the first virtual device, and if the first virtual device is a second-layer virtual machine, the first-layer virtual machine corresponding to the first virtual device can also be determined.
And when a second data packet based on the feedback of the first data packet is acquired, the second data packet is sent to a first virtual network card corresponding to the first virtual device, and then the first virtual network card sends the second data packet to the first virtual device.
According to the virtual network implementation method disclosed by the embodiment, a first data packet is obtained, the first data packet is sent by a first virtual device, the first virtual device is a first-layer virtual machine which is created by a virtual network based on a first virtual network card in a virtual network, or the first virtual device is a second-layer virtual device in the first-layer virtual machine which is created by the virtual network card in the virtual network based on the first virtual network card, the first data packet is learned based on the first data packet, a learning result is determined, the learning result at least comprises an MAC address of the first virtual device which sends the first data packet, a second data packet which is fed back based on the first data packet is obtained, and the second data packet is sent to the first virtual device based on the learning result. According to the scheme, after the first data packet sent by the first virtual device is obtained, the first data packet is learned, and the obtained second data packet based on the feedback of the first data packet is sent to the first virtual device based on the learning result, so that whether the first data packet is sent by the first layer virtual machine or the second layer virtual device, the feedback data packet can be obtained by the learning result obtained by learning the first data packet, and the feedback data packet can be sent to the first layer or the second layer virtual device for sending the first data packet, and multi-layer virtualization is realized.
The embodiment discloses a virtual network implementation method, a flow chart of which is shown in fig. 2, comprising the following steps:
Step S21, determining whether a second-layer virtual device inside the first-layer virtual machine is included in the virtual network;
Step S22, if the virtual network comprises a second layer of virtual equipment in the first layer of virtual machine, when a first data packet is sent through the second layer of virtual equipment, the first data packet is learned based on the first data packet, a learning result is determined, and the learning result at least comprises the MAC address of the first virtual equipment sending the first data packet;
step S23, if the virtual network only comprises the first layer virtual machine, determining the MAC address of the first layer virtual machine based on the pre-stored MAC address information when the first data packet is sent by the first layer virtual machine;
and step S24, acquiring a second data packet fed back based on the first data packet, and transmitting the second data packet to the first virtual device based on the MAC address of the first virtual device.
Before a first data packet is acquired and learned, whether second-layer virtual equipment exists in a virtual network is firstly determined, namely, at least one virtual network card under a physical network card has a first-layer virtual machine and second-layer virtual equipment, and the MAC address of the first virtual equipment is determined in a MAC address learning mode as long as at least one virtual network card under the physical network card has the second-layer virtual equipment;
if all the virtual network cards under the physical network card have one layer of virtual machine and no two layers of virtual equipment exist, the address of the first layer of virtual machine for transmitting the first data packet can be determined directly through the pre-stored MAC address information without learning the MAC address.
And pre-storing MAC address information, namely pre-storing the MAC address of each virtual device, wherein the MAC address of each virtual device is the MAC address of the corresponding virtual network card as only one layer of virtual device exists. After the first data packet sent by the first layer virtual device is obtained, the first data packet is directly identified, so that the MAC address of the first data packet is determined, and a learning process is not needed.
Specifically, a switch logic is added to the physical network card, and only if it is determined that the second layer of virtual equipment exists in at least one virtual network card, the MAC address learning function, namely the data packet learning function, is started, and after the first data packet is acquired, the first data packet is learned.
Further, the method may further include:
Determining whether a data packet learning function for the first virtual network card is started; if the data packet learning function for the first virtual network card is started, after the first data packet is acquired, the first data packet is learned based on the first data packet, so that a learning result is determined.
The determining whether the packet learning function for the first virtual network card is started may be performed before the first packet is acquired, or may be performed after the first packet is acquired each time.
If the data packet learning function of the first virtual network card is started, directly learning the first data packet after the first data packet is acquired;
if the function is not started, after the first data is acquired, the MAC address of the first-layer virtual machine is directly determined based on the pre-stored MAC address information, or after the first data packet is acquired, whether the second-layer virtual equipment in the first-layer virtual machine is included in the virtual network is determined, the learning function is started to learn the first data packet only when the second-layer virtual equipment is included, and if the second-layer virtual equipment is not included, the MAC address of the first-layer virtual machine is directly determined based on the pre-stored MAC address information.
According to the virtual network implementation method disclosed by the embodiment, a first data packet is obtained, the first data packet is sent by a first virtual device, the first virtual device is a first-layer virtual machine which is created by a virtual network based on a first virtual network card in a virtual network, or the first virtual device is a second-layer virtual device in the first-layer virtual machine which is created by the virtual network card in the virtual network based on the first virtual network card, the first data packet is learned based on the first data packet, a learning result is determined, the learning result at least comprises an MAC address of the first virtual device which sends the first data packet, a second data packet which is fed back based on the first data packet is obtained, and the second data packet is sent to the first virtual device based on the learning result. According to the scheme, after the first data packet sent by the first virtual device is obtained, the first data packet is learned, and the obtained second data packet based on the feedback of the first data packet is sent to the first virtual device based on the learning result, so that whether the first data packet is sent by the first layer virtual machine or the second layer virtual device, the feedback data packet can be obtained by the learning result obtained by learning the first data packet, and the feedback data packet can be sent to the first layer or the second layer virtual device for sending the first data packet, and multi-layer virtualization is realized.
The embodiment discloses a virtual network implementation method, a flow chart of which is shown in fig. 3, comprising the following steps:
Step S31, a first data packet is acquired, and the first data packet is sent by first virtual equipment, wherein the first virtual equipment is a first layer virtual machine created based on a first virtual network card in a virtual network, or the first virtual equipment is second layer virtual equipment in the first layer virtual machine created based on the first virtual network card in the virtual network;
Step S32, learning the first data packet based on the first data packet, and determining a learning result, wherein the learning result at least comprises the MAC address of the first virtual device for transmitting the first data packet;
Step S33, a second data packet based on the feedback of the first data packet is obtained;
Step S34, determining whether the MAC address indicated according to the learning result can determine at least one virtual device;
step S35, if the MAC address indicated by the learning result can be determined to be not less than one virtual device, determining a first virtual device corresponding to the MAC address at the time of determining the learning result according to the time of determining the learning result, and transmitting a second data packet to the first virtual device.
One MAC address may correspond to one virtual device or may correspond to a plurality of virtual devices.
When determining virtual equipment through an MAC address, if a second data packet fed back based on the first data packet is acquired, firstly searching a learning result corresponding to the first data packet, determining an MAC address of the first virtual equipment, then searching based on the MAC address, and if the MAC address is determined to be capable of determining a unique virtual equipment currently, the unique virtual equipment is the first virtual equipment for transmitting the first data packet, and transmitting the second data packet to the first virtual equipment at the MAC address;
If it is determined that the MAC address can currently determine at least two virtual devices, determining a time for obtaining a learning result of the MAC address is required, and determining a virtual device corresponding to the MAC address determined by the time.
Such as: the physical network card stores: and determining the address of the first virtual device as a first MAC address at a first moment, and determining the address of the second virtual device as the first MAC address at a second moment. When a second data packet based on the feedback of the first data packet is acquired, determining the time for learning the first data packet to obtain a learning result, if the first data packet is learned, and the learning result is obtained at the first moment to be the first MAC address.
In addition, since the MAC address of the virtual device is determined according to the time of determining the learning result, it may further include: after a preset time interval from the time of determining the learning result, deleting the record of the learning result stored by the physical network card, wherein the preset time interval can ensure that the physical network card obtains feedback of other devices or networks based on the data packet. If the physical network card does not acquire feedback within the preset time, the physical network card is indicated not to receive the feedback based on the data packet, so that the record of the learning result can be deleted after the preset time, and the memory for recording the learning results of other virtual devices is avoided.
According to the virtual network implementation method disclosed by the embodiment, a first data packet is obtained, the first data packet is sent by a first virtual device, the first virtual device is a first-layer virtual machine which is created by a virtual network based on a first virtual network card in a virtual network, or the first virtual device is a second-layer virtual device in the first-layer virtual machine which is created by the virtual network card in the virtual network based on the first virtual network card, the first data packet is learned based on the first data packet, a learning result is determined, the learning result at least comprises an MAC address of the first virtual device which sends the first data packet, a second data packet which is fed back based on the first data packet is obtained, and the second data packet is sent to the first virtual device based on the learning result. According to the scheme, after the first data packet sent by the first virtual device is obtained, the first data packet is learned, and the obtained second data packet based on the feedback of the first data packet is sent to the first virtual device based on the learning result, so that whether the first data packet is sent by the first layer virtual machine or the second layer virtual device, the feedback data packet can be obtained by the learning result obtained by learning the first data packet, and the feedback data packet can be sent to the first layer or the second layer virtual device for sending the first data packet, and multi-layer virtualization is realized.
The embodiment discloses a virtual network implementation method, a flowchart of which is shown in fig. 4, including:
Step S41, acquiring a first data packet, wherein the first data packet is sent by a first virtual device, and the first virtual device is a first layer virtual machine created based on a first virtual network card in a virtual network or is a second layer virtual device in the first layer virtual machine created based on the first virtual network card in the virtual network;
Step S42, learning the first data packet based on the first data packet, and determining a learning result, wherein the learning result at least comprises the MAC address of the first virtual device transmitting the first data packet;
Step S43, determining a sending strategy for sending feedback data to the first virtual equipment, wherein the sending strategy at least comprises a first sending mode;
Step S44, a second data packet fed back based on the first data packet is acquired, and the second data packet is sent to the first virtual device at least based on a first sending mode, wherein the first sending mode at least comprises sending feedback data based on a learning result obtained by learning and determining the first data packet.
The feedback data of the first data packet, that is, the second data packet, may be sent to the first virtual device in various sending manners, for example: the first sending mode at least comprises sending feedback data based on a learning result obtained by learning and determining the first data packet, namely, after the physical network card acquires the first data packet, learning the first data packet, determining the MAC address of the first virtual device for sending the first data packet, and then when the second data packet is acquired, directly sending the second data packet to the first virtual device based on the MAC address of the first virtual device;
In addition, the transmission manner of transmitting the second data packet to the first data packet may further include: the second sending mode can be based on the virtual local area network to send feedback data, namely, a corresponding VLAN is configured on each virtual network card, when data transmission is carried out, the transmitted data packet contains VLAN information, and when the feedback data is sent, the feedback data is transmitted to the corresponding virtual network card based on the VLAN information in the data packet; or the second transmission mode may be: feedback data is transmitted based on pre-stored MAC address information.
Specifically, it may be directly determined that the second data packet based on the first data packet feedback is sent to the first virtual device by default in the first sending manner, or may be directly determined that the second data packet based on the first data packet feedback is sent to the first virtual device by default in the second sending manner, and specifically, what manner to send the second data packet to the first virtual device may be determined based on the service requirement of the transmitted data.
Further, the sending policy for sending the feedback data to the first virtual device may also be: the method not only comprises a strategy of a sending mode, but also can be as follows: and (3) not less than one transmission mode with priority order, namely presetting a certain priority order, namely preferentially adopting a certain transmission mode, and adopting other transmission modes if the transmission mode cannot be adopted.
Wherein the priority order is related to the environment information of the virtual network, i.e. the priority order is determined based on the environment information of the virtual network, such as: and determining that the first priority is a first transmission mode based on the environment information, and the second priority is a second transmission mode, wherein the second transmission mode is selected only when the first transmission mode cannot transmit the second data packet to the first virtual device, or the second transmission mode is selected to transmit the second data packet to the first virtual device when the first transmission mode is used for transmitting the second data packet to the first virtual device and a certain specific condition is required to be met.
Of course, it is also possible to: and determining the first priority as a second transmission mode based on the environment information, wherein the second priority is the first transmission mode.
In addition, it may also be: the second transmission mode is to transmit feedback data based on the virtual local area network, and the third transmission mode is to transmit feedback data based on pre-stored MAC address information. At this time, the priority order determined based on the environment information has three kinds, i.e., a first priority, a second priority, and a third priority, such as: the first priority is a first transmission mode, the second priority is a second transmission mode, and the third priority is a third transmission mode.
According to the virtual network implementation method disclosed by the embodiment, a first data packet is obtained, the first data packet is sent by a first virtual device, the first virtual device is a first-layer virtual machine which is created by a virtual network based on a first virtual network card in a virtual network, or the first virtual device is a second-layer virtual device in the first-layer virtual machine which is created by the virtual network card in the virtual network based on the first virtual network card, the first data packet is learned based on the first data packet, a learning result is determined, the learning result at least comprises an MAC address of the first virtual device which sends the first data packet, a second data packet which is fed back based on the first data packet is obtained, and the second data packet is sent to the first virtual device based on the learning result. According to the scheme, after the first data packet sent by the first virtual device is obtained, the first data packet is learned, and the obtained second data packet based on the feedback of the first data packet is sent to the first virtual device based on the learning result, so that whether the first data packet is sent by the first layer virtual machine or the second layer virtual device, the feedback data packet can be obtained by the learning result obtained by learning the first data packet, and the feedback data packet can be sent to the first layer or the second layer virtual device for sending the first data packet, and multi-layer virtualization is realized.
The embodiment discloses an electronic device, a schematic structural diagram of which is shown in fig. 5, including:
acquisition unit 51, learning unit 52 and transmission unit 53.
The obtaining unit 51 obtains a first data packet by a user, where the first data packet is sent by a first virtual device, and the first virtual device is a first layer virtual machine created based on a first virtual network card in a virtual network, or the first virtual device is a second layer virtual device inside the first layer virtual machine created based on the first virtual network card in the virtual network;
The learning unit 52 is configured to learn the first data packet based on the first data packet, and determine a learning result, where the learning result includes at least a MAC address of the first virtual device that transmits the first data packet;
The virtual network implementation method based on the electronic device disclosed in the embodiment is implemented on the basis of a physical network card, that is, the electronic device is actually the physical network card.
In order to improve the utilization rate of network cards, the existing MEC mobile edge computing platform solves the problem by using multi-stage network virtualization, namely, each physical network card virtualizes a plurality of virtual network cards. Creating a virtual machine, namely a first layer virtual machine, by using the virtual network card; and carrying out network virtualization again in the first-layer virtual machine, namely creating virtual equipment in the first-layer virtual machine so as to realize the generation of the second-layer virtual equipment. The second layer of virtual devices may be virtual machines or containers.
When the first layer virtual machine is created through the virtual network card, the flow is imported on the virtual controller of the virtual network card according to the MAC address of the virtual network card, if the network virtualization is started on the virtual network card, the first layer virtual machine is created, and the MAC address of the first layer virtual machine is the MAC address of the virtual network card, so that when data transmission is carried out, data feedback can be directly carried out according to the MAC address of the first layer virtual machine; if the second-layer virtual device is built in the first-layer virtual machine built by the virtual network card, the address of the second-layer virtual device is the address of the virtual network card, and according to the address, the traffic cannot be imported into the second-layer virtual device, and the second-layer virtual device can only transmit data to the first-layer virtual machine and cannot reach the second-layer virtual device. Therefore, multi-layer virtualization cannot be achieved.
To solve this problem, when the physical network card acquires the first data packet sent by the first virtual device, the first data packet is learned to determine the MAC address of the first virtual device that sent the first data packet, whether the first virtual device is a first layer virtual device or a second layer virtual device.
The first data packet sent by the first virtual device further comprises the address of the first virtual device sending the first data packet, so that the physical network card can learn the address of the first virtual device from the first data packet after acquiring the first data packet.
If the first virtual device is a first layer virtual machine, the address included in the first data packet is the address of the first layer virtual machine, namely a first-level MAC address; if the first virtual device is a second layer virtual device, the address included in the first data packet is an address of the second layer virtual device, that is, a second-level MAC address, where the second-level MAC address is a specific address of the second layer virtual device that is used to facilitate the physical network card to explicitly send out the data packet.
The physical network card learns the first data packet, namely learns the MAC address of the first virtual device sending the first data packet from the message of the sent first data packet, and can learn not only the MAC address of the virtual network card, but also the original MAC address of the virtual device sending the message, namely a primary MAC address or a secondary MAC address.
After learning the original MAC address of the first virtual device, the MAC address needs to be stored, so that when the physical network card receives feedback based on the first data packet, the physical network card can return to the first virtual device according to the stored MAC address.
After the physical network card acquires the first data packet and learns the first data packet to determine the MAC address of the first virtual device of the first data packet, the physical network card sends the first data packet so as to realize data transmission, thereby completing data transmission after acquiring the feedback based on the first data packet.
The sending unit 53 is configured to obtain a second data packet fed back based on the first data packet, and send the second data packet to the first virtual device based on the learning result.
After the physical network card sends the first data packet sent by the first virtual device, the physical network card receives the data packet fed back by other devices or networks based on the first data packet, namely the second data packet.
After the physical network card receives the second data packet, the second data packet is analyzed to determine that the second data packet is based on the feedback of the first data packet, then the MAC address corresponding to the first data packet is found from the stored record, and then the second data packet is fed back to the first virtual device corresponding to the MAC address according to the MAC address, so that the complete process of data transmission is realized.
Since the first packet learns the MAC address of the first virtual device itself that transmits the first packet when learning the first packet, the first packet can be transmitted to the first virtual device based on the MAC of the first virtual device itself when the first packet is fed back, regardless of whether the first virtual device is the first layer virtual machine or the second layer virtual device.
Further, the method may further include:
When the first data packet is learned, the first data packet not only can learn the MAC address of the first virtual device, but also can determine the address of the first virtual network card corresponding to the first virtual device, and if the first virtual device is a second-layer virtual machine, the first-layer virtual machine corresponding to the first virtual device can also be determined.
And when a second data packet based on the feedback of the first data packet is acquired, the second data packet is sent to a first virtual network card corresponding to the first virtual device, and then the first virtual network card sends the second data packet to the first virtual device.
Further, the electronic device disclosed in the embodiment may further include: and a determining unit.
The determining unit is used for determining whether the virtual network comprises second-layer virtual equipment in the first-layer virtual machine or not, and if the virtual network comprises the second-layer virtual equipment in the first-layer virtual machine, when the first data packet is sent through the second-layer virtual equipment, learning the first data packet based on the first data packet; if the virtual network only comprises the first layer virtual machine, determining the MAC address of the first layer virtual machine based on the pre-stored MAC address information when the first data packet is sent through the first layer virtual machine.
Before a first data packet is acquired and learned, whether second-layer virtual equipment exists in a virtual network is firstly determined, namely, at least one virtual network card under a physical network card has a first-layer virtual machine and second-layer virtual equipment, and the MAC address of the first virtual equipment is determined in a MAC address learning mode as long as at least one virtual network card under the physical network card has the second-layer virtual equipment;
if all the virtual network cards under the physical network card have one layer of virtual machine and no two layers of virtual equipment exist, the address of the first layer of virtual machine for transmitting the first data packet can be determined directly through the pre-stored MAC address information without learning the MAC address.
And pre-storing MAC address information, namely pre-storing the MAC address of each virtual device, wherein the MAC address of each virtual device is the MAC address of the corresponding virtual network card as only one layer of virtual device exists. After the first data packet sent by the first layer virtual device is obtained, the first data packet is directly identified, so that the MAC address of the first data packet is determined, and a learning process is not needed.
Specifically, a switch logic is added to the physical network card, and only if it is determined that the second layer of virtual equipment exists in at least one virtual network card, the MAC address learning function, namely the data packet learning function, is started, and after the first data packet is acquired, the first data packet is learned.
Further, the method may further include:
Determining whether a data packet learning function for the first virtual network card is started; if the data packet learning function for the first virtual network card is started, after the first data packet is acquired, the first data packet is learned based on the first data packet, so that a learning result is determined.
The determining whether the packet learning function for the first virtual network card is started may be performed before the first packet is acquired, or may be performed after the first packet is acquired each time.
If the data packet learning function of the first virtual network card is started, directly learning the first data packet after the first data packet is acquired;
if the function is not started, after the first data is acquired, the MAC address of the first-layer virtual machine is directly determined based on the pre-stored MAC address information, or after the first data packet is acquired, whether the second-layer virtual equipment in the first-layer virtual machine is included in the virtual network is determined, the learning function is started to learn the first data packet only when the second-layer virtual equipment is included, and if the second-layer virtual equipment is not included, the MAC address of the first-layer virtual machine is directly determined based on the pre-stored MAC address information.
Further, the transmitting unit 53 is specifically configured to:
Acquiring a second data packet based on the feedback of the first data packet; determining whether the MAC address indicated according to the learning result can determine at least one virtual device; if the MAC address indicated by the learning result can be determined to be not less than one virtual device, determining a first virtual device corresponding to the MAC address at the time of determining the learning result according to the time of determining the learning result, and transmitting a second data packet to the first virtual device.
One MAC address may correspond to one virtual device or may correspond to a plurality of virtual devices.
When determining virtual equipment through an MAC address, if a second data packet fed back based on the first data packet is acquired, firstly searching a learning result corresponding to the first data packet, determining an MAC address of the first virtual equipment, then searching based on the MAC address, and if the MAC address is determined to be capable of determining a unique virtual equipment currently, the unique virtual equipment is the first virtual equipment for transmitting the first data packet, and transmitting the second data packet to the first virtual equipment at the MAC address;
If it is determined that the MAC address can currently determine at least two virtual devices, determining a time for obtaining a learning result of the MAC address is required, and determining a virtual device corresponding to the MAC address determined by the time.
Such as: the physical network card stores: and determining the address of the first virtual device as a first MAC address at a first moment, and determining the address of the second virtual device as the first MAC address at a second moment. When a second data packet based on the feedback of the first data packet is acquired, determining the time for learning the first data packet to obtain a learning result, if the first data packet is learned, and the learning result is obtained at the first moment to be the first MAC address.
In addition, since the MAC address of the virtual device is determined according to the time of determining the learning result, it may further include: after a preset time interval from the time of determining the learning result, deleting the record of the learning result stored by the physical network card, wherein the preset time interval can ensure that the physical network card obtains feedback of other devices or networks based on the data packet. If the physical network card does not acquire feedback within the preset time, the physical network card is indicated not to receive the feedback based on the data packet, so that the record of the learning result can be deleted after the preset time, and the memory for recording the learning results of other virtual devices is avoided.
Further, the transmitting unit 53 may be further configured to:
determining a sending strategy for sending the feedback data to the first virtual equipment, wherein the sending strategy at least comprises a first sending mode; and acquiring a second data packet fed back based on the first data packet, and transmitting the second data packet to the first virtual device at least based on a first transmission mode, wherein the first transmission mode at least comprises transmitting feedback data based on a learning result obtained by learning and determining the first data packet.
The feedback data of the first data packet, that is, the second data packet, may be sent to the first virtual device in various sending manners, for example: the first sending mode at least comprises sending feedback data based on a learning result obtained by learning and determining the first data packet, namely, after the physical network card acquires the first data packet, learning the first data packet, determining the MAC address of the first virtual device for sending the first data packet, and then when the second data packet is acquired, directly sending the second data packet to the first virtual device based on the MAC address of the first virtual device;
In addition, the transmission manner of transmitting the second data packet to the first data packet may further include: the second sending mode can be based on the virtual local area network to send feedback data, namely, a corresponding VLAN is configured on each virtual network card, when data transmission is carried out, the transmitted data packet contains VLAN information, and when the feedback data is sent, the feedback data is transmitted to the corresponding virtual network card based on the VLAN information in the data packet; or the second transmission mode may be: feedback data is transmitted based on pre-stored MAC address information.
Specifically, it may be directly determined that the second data packet based on the first data packet feedback is sent to the first virtual device by default in the first sending manner, or may be directly determined that the second data packet based on the first data packet feedback is sent to the first virtual device by default in the second sending manner, and specifically, what manner to send the second data packet to the first virtual device may be determined based on the service requirement of the transmitted data.
Further, the sending policy for sending the feedback data to the first virtual device may also be: the method not only comprises a strategy of a sending mode, but also can be as follows: and (3) not less than one transmission mode with priority order, namely presetting a certain priority order, namely preferentially adopting a certain transmission mode, and adopting other transmission modes if the transmission mode cannot be adopted.
Wherein the priority order is related to the environment information of the virtual network, i.e. the priority order is determined based on the environment information of the virtual network, such as: and determining that the first priority is a first transmission mode based on the environment information, and the second priority is a second transmission mode, wherein the second transmission mode is selected only when the first transmission mode cannot transmit the second data packet to the first virtual device, or the second transmission mode is selected to transmit the second data packet to the first virtual device when the first transmission mode is used for transmitting the second data packet to the first virtual device and a certain specific condition is required to be met.
Of course, it is also possible to: and determining the first priority as a second transmission mode based on the environment information, wherein the second priority is the first transmission mode.
In addition, it may also be: the second transmission mode is to transmit feedback data based on the virtual local area network, and the third transmission mode is to transmit feedback data based on pre-stored MAC address information. At this time, the priority order determined based on the environment information has three kinds, i.e., a first priority, a second priority, and a third priority, such as: the first priority is a first transmission mode, the second priority is a second transmission mode, and the third priority is a third transmission mode.
According to the electronic device disclosed by the embodiment, an acquisition unit acquires a first data packet, the first data packet is sent by a first virtual device, the first virtual device is a first-layer virtual machine created based on a first virtual network card in a virtual network, or the first virtual device is a second-layer virtual device in the first-layer virtual machine created based on the first virtual network card in the virtual network, a learning unit learns the first data packet based on the first data packet, a learning result is determined, the learning result at least comprises an MAC address of the first virtual device sending the first data packet, a sending unit acquires a second data packet fed back based on the first data packet, and the second data packet is sent to the first virtual device based on the learning result. According to the scheme, after the first data packet sent by the first virtual device is obtained, the first data packet is learned, and the obtained second data packet based on the feedback of the first data packet is sent to the first virtual device based on the learning result, so that whether the first data packet is sent by the first layer virtual machine or the second layer virtual device, the feedback data packet can be obtained by the learning result obtained by learning the first data packet, and the feedback data packet can be sent to the first layer or the second layer virtual device for sending the first data packet, and multi-layer virtualization is realized.
The present embodiment discloses a storage medium for storing at least a set of instructions, wherein the set of instructions is for being invoked and performing at least a virtual network implementation method as described in any one of the above.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative elements and steps are described above generally in terms of functionality in order to clearly illustrate the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. The software modules may be disposed in Random Access Memory (RAM), memory, read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A virtual network implementation method, applied to a physical network card, the method comprising:
Acquiring a first data packet, wherein the first data packet is sent by a first virtual device, and the first data packet comprises an MAC address of the first virtual device for sending the first data packet; the first virtual device is a first layer virtual machine created based on a first virtual network card in a virtual network, or the first virtual device is a second layer virtual device in the first layer virtual machine created based on the first virtual network card in the virtual network;
Learning the first data packet based on the first data packet, and determining a learning result, wherein the learning result at least comprises the MAC address of the first virtual device sending the first data packet;
Acquiring a second data packet fed back based on the first data packet, and sending the second data packet to the first virtual device based on the learning result, wherein the method specifically comprises the following steps: if the MAC addresses indicated by the learning results are determined to be not less than two virtual devices, determining the first virtual device corresponding to the MAC address at the time of determining the learning results according to the time of determining the learning results, and sending the second data packet to the first virtual device;
And deleting the record of the learning result stored in the physical network card after a preset time interval from the time of determining the learning result.
2. The method of claim 1, further comprising:
determining whether a second-layer virtual device inside the first-layer virtual machine is included in the virtual network;
If the virtual network comprises second-layer virtual equipment in the first-layer virtual machine, when a first data packet is sent through the second-layer virtual equipment, learning the first data packet based on the first data packet;
and if the virtual network only comprises the first-layer virtual machine, determining the MAC address of the first-layer virtual machine based on the pre-stored MAC address information when the first data packet is sent through the first-layer virtual machine.
3. The method of claim 1, wherein the obtaining a second data packet based on the first data packet feedback, the second data packet being sent to the first virtual device based on the learning result, comprises:
And if the unique virtual device is determined according to the MAC address indicated by the learning result, determining that the unique virtual device is the first virtual device for transmitting the first data packet, and transmitting the second data packet to the first virtual device.
4. The method of claim 1, wherein the obtaining a second data packet based on the first data packet feedback, the second data packet being sent to the first virtual device based on the learning result, comprises:
determining a sending strategy for sending feedback data to the first virtual equipment, wherein the sending strategy at least comprises a first sending mode;
And acquiring a second data packet fed back based on the first data packet, and sending the second data packet to the first virtual device at least based on the first sending mode, wherein the first sending mode at least comprises sending feedback data based on a learning result obtained by learning and determining the first data packet.
5. The method of claim 4, wherein the obtaining a second data packet based on the first data packet feedback, the second data packet being sent to the first virtual device based on the learning result, comprises:
if the transmission strategy is at least one transmission mode with a priority order, determining a first transmission mode of a first priority in the priority order based on the environment information of the virtual network;
And acquiring a second data packet fed back based on the first data packet, and transmitting the second data packet to the first virtual equipment based on the first transmission mode.
6. The method of claim 5, further comprising:
If the second data packet is not sent to the first virtual device based on the first sending mode, determining a second sending mode of a second priority in the priority sequence, and sending the second data packet to the first virtual device based on the second sending mode;
the second sending mode is as follows: and sending feedback data based on the virtual local area network or sending feedback data based on the pre-stored MAC address information.
7. The method of claim 1, further comprising:
determining whether a data packet learning function for the first virtual network card is started;
If the data packet learning function for the first virtual network card is started, after a first data packet is acquired, the first data packet is learned based on the first data packet, so that a learning result is determined.
8. An electronic device, wherein the electronic device is a physical network card, the electronic device comprising:
The method comprises the steps that an acquisition unit, a user acquires a first data packet, wherein the first data packet is sent by a first virtual device, and the first data packet comprises an MAC address of the first virtual device for sending the first data packet; the first virtual device is a first layer virtual machine created based on a first virtual network card in a virtual network, or the first virtual device is a second layer virtual device in the first layer virtual machine created based on the first virtual network card in the virtual network;
the learning unit is used for learning the first data packet based on the first data packet, and determining a learning result, wherein the learning result at least comprises the MAC address of the first virtual device for transmitting the first data packet;
The sending unit is configured to obtain a second data packet fed back based on the first data packet, and send the second data packet to the first virtual device based on the learning result, and specifically includes: if the MAC addresses indicated by the learning results are determined to be not less than two virtual devices, determining the first virtual device corresponding to the MAC address at the time of determining the learning results according to the time of determining the learning results, and sending the second data packet to the first virtual device;
And the electronic equipment is also used for deleting the record of the learning result stored in the physical network card after a preset time interval from the time interval of determining the learning result.
9. The electronic device of claim 8, further comprising:
a determination unit configured to determine whether a second-layer virtual device inside the first-layer virtual machine is included in the virtual network,
If the virtual network comprises second-layer virtual equipment in the first-layer virtual machine, when a first data packet is sent through the second-layer virtual equipment, learning the first data packet based on the first data packet; and if the virtual network only comprises the first-layer virtual machine, determining the MAC address of the first-layer virtual machine based on the pre-stored MAC address information when the first data packet is sent through the first-layer virtual machine.
10. The electronic device of claim 8, wherein the transmitting unit is configured to obtain a second data packet based on the feedback of the first data packet, and transmit the second data packet to the first virtual device based on the learning result, and includes:
And the sending unit is used for determining that the unique virtual device is the first virtual device sending the first data packet if the unique virtual device is determined according to the MAC address indicated by the learning result, and sending the second data packet to the first virtual device.
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| CN105657078A (en) * | 2015-12-29 | 2016-06-08 | 联想(北京)有限公司 | Data transmission method, data transmission device and multi-layer network manager |
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| CN109714238A (en) * | 2018-12-11 | 2019-05-03 | 上海云轴信息科技有限公司 | A kind of method and apparatus for realizing inter-virtual machine communication |
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| CN105657078A (en) * | 2015-12-29 | 2016-06-08 | 联想(北京)有限公司 | Data transmission method, data transmission device and multi-layer network manager |
| CN107278362A (en) * | 2016-11-09 | 2017-10-20 | 华为技术有限公司 | The method of Message processing, main frame and system in cloud computing system |
| CN109714238A (en) * | 2018-12-11 | 2019-05-03 | 上海云轴信息科技有限公司 | A kind of method and apparatus for realizing inter-virtual machine communication |
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