CN108965494A - Data transmission method and device in data system - Google Patents
Data transmission method and device in data system Download PDFInfo
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- CN108965494A CN108965494A CN201810731894.XA CN201810731894A CN108965494A CN 108965494 A CN108965494 A CN 108965494A CN 201810731894 A CN201810731894 A CN 201810731894A CN 108965494 A CN108965494 A CN 108965494A
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- network card
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- address information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/09—Mapping addresses
- H04L61/10—Mapping addresses of different types
- H04L61/103—Mapping addresses of different types across network layers, e.g. resolution of network layer into physical layer addresses or address resolution protocol [ARP]
-
- 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
- H04L45/74—Address processing for routing
-
- 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
- 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 invention discloses data transmission method and devices in a kind of cloud data system.The described method includes: detection virtual machine receive data packet destination address type whether be physical network card address；If the type for receiving the destination address of data packet is the address of physical network card, it is retrieved as the address information of the corresponding physical network card of the virtual machine configuration；If including the data packet is sent directly to destination address；If not including, from the corresponding physical network card address information of the virtual machine, this transmission is selected to operate the address information of used physical network card；Using the address information of the physical network card of selection, the data packet is transmitted.
Description
Technical field
The present invention relates to field of information processing, data transmission method and device in espespecially a kind of data system.
Background technique
Cloud computing system virtual machine network performance is restricted by cloud computing system network performance, and the network of cloud computing system
The network performance of performance and legacy system still has gap.
It can use hardware feature at present and improve virtualization network performance, such as high-performance network interface card, support virtual technology
Network interface card improves network transmission performance, and still, high-performance network interface card itself is expensive, and performance is unstable, and need to update with
Interconnection relevant device and software, cost is too high.And in the cluster environment of current cloud computing system, most servers are gathered around
There is muti-piece network interface card, but does not make full use of its performance.And the technologies such as traditional more network interface card bonding can not optimize well
The network performance of cloud computing system.
Realize process of the present invention in, inventor discovery the prior art has the following problems:
With extensive use of the virtual machine in cloud computing system, physical network card MAC Address and virtual machine address are all in net
Used in network, using address resolution protocol (Address Resolution Protocol, ARP) agreement by virtual machine address
After resolving to virtual machine MAC Address, since physical network card MAC Address can not be corresponding with virtual machine MAC Address, this leads to the data
Packet is unable to control RX path when passing through physical network card, and the data packet is caused to send failure.
Summary of the invention
In order to solve the above-mentioned technical problems, the present invention provides data transmission method and devices in a kind of data system, protect
Data packet is demonstrate,proved in the normal transmission of virtual machine and physical machine.
In order to reach the object of the invention, the present invention provides data transmission methods in a kind of cloud data system, comprising:
Detection virtual machine receive data packet destination address type whether be physical network card address；
If the type for receiving the destination address of data packet is the address of physical network card, it is retrieved as the virtual machine configuration
Corresponding physical network card address information；
If virtual machine physical network card corresponding with the destination address does not set up corresponding relationship, from described virtual
In the corresponding physical network card address information of machine, this transmission is selected to operate the address information of used physical network card；
Using the address information of the physical network card of selection, the data packet is transmitted.
Wherein, the method also has a characteristic that the corresponding physical network card for being retrieved as the virtual machine configuration
Address information before, the method also includes:
Address Resolution Protocol ARP request is sent, wherein the ARP request includes the address information of the virtual machine；
The arp reply that physical host returns to the ARP request is received, wherein the arp reply includes the physics master
The address information of physical network card on machine；
Establish the corresponding relationship of the address information of the virtual machine and the address information of physical network card.
Wherein, the method also has a characteristic that the address information of the physical network card using selection, described in transmission
Before data packet, the method also includes:
ARP virtual machine is sent to the physical host and belongs to response message, and is detecting physical host completion place
After main machine structure updates, then carry out data packet transmission operation.
Wherein, the method also has a characteristic that described from the corresponding physical network card address information of the virtual machine,
This transmission is selected to operate the address information of used physical network card, comprising:
Obtain the load information of the corresponding physical network card of the virtual machine；
According to the load information of the physical network card, this transmission is selected to operate the address information of used physical network card.
Wherein, the method also has a characteristic that the address information of the physical network card using selection, described in transmission
Data packet, comprising:
The data packet of the virtual machine is sent to the master for the address information that destination address is the selected physical network card
Machine, and the host is notified to continue to forward the data packet.
Data transmission device in a kind of cloud data system, comprising:
Detection module, for detect virtual machine receive data packet destination address type whether be physical network card ground
Location；
Module is obtained, if the type of the destination address for receiving data packet is the address of physical network card, is retrieved as
The address information of the corresponding physical network card of the virtual machine configuration；
Whether judgment module wraps for judging described as the address information of the corresponding physical network card of the virtual machine configuration
Include the address information of the corresponding physical network card of the destination address；
First transmission module, if the data packet is sent directly to destination address for including；
Second transmission module, if for not including, from the corresponding physical network card address information of the virtual machine, choosing
The address information that this transmission operates used physical network card, and the address information of the physical network card using selection are selected, institute is transmitted
State data packet.
Wherein, described device also has a characteristic that described device further include:
First sending module, for the corresponding physical network card for being retrieved as the virtual machine configuration address information it
Before, Address Resolution Protocol ARP request is sent, wherein the ARP request includes the address information of the virtual machine；
Receiving module, the arp reply that the ARP request is returned for receiving physical host, wherein the arp reply packet
Include the address information of physical network card on the physical host；
Module is established, for establishing the corresponding relationship of the address information of the virtual machine and the address information of physical network card.
Wherein, described device also has a characteristic that described device further include:
Second sending module, for the address information in the physical network card using selection, before transmitting the data packet, to
The physical host sends ARP virtual machine and belongs to response message；
Control module for after detecting that the physical host completes host topology update, then carries out data packet biography
Defeated operation.
Wherein, described device also has a characteristic that second transmission module includes:
Acquiring unit, for obtaining the load information of the corresponding physical network card of the virtual machine；
Selecting unit selects this transmission to operate used Physical Network for the load information according to the physical network card
The address information of card.
Wherein, described device also has a characteristic that second transmission module is specifically used for:
The data packet of the virtual machine is sent to the master for the address information that destination address is the selected physical network card
Machine simultaneously notifies the host to continue to forward the data packet.
Embodiment provided by the invention detects the destination address of the received data packet of virtual machine, when detecting mesh
Address be physical network card address after, by obtain in advance can with the physical network card of virtual machine direct communication, by the data
Packet is sent to the physical network card, and sends data packets to corresponding destination address by the physical network card, realize virtual machine with
Destination address is the normal communication of the network interface card of physical host, guarantees the Successful transmissions of data.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention can be by specification, right
Specifically noted structure is achieved and obtained in claim and attached drawing.
Detailed description of the invention
Attached drawing is used to provide to further understand technical solution of the present invention, and constitutes part of specification, with this
The embodiment of application technical solution for explaining the present invention together, does not constitute the limitation to technical solution of the present invention.
Fig. 1 is the flow chart of data transmission method in cloud data system provided by the invention；
Fig. 2 is the interaction schematic diagram provided by the invention acted on behalf of using ARP neighbours and realize data communication；
Fig. 3 is the structure chart of data transmission device in cloud data system provided by the invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention
Embodiment be described in detail.It should be noted that in the absence of conflict, in the embodiment and embodiment in the application
Feature can mutual any combination.
Step shown in the flowchart of the accompanying drawings can be in a computer system such as a set of computer executable instructions
It executes.Also, although logical order is shown in flow charts, and it in some cases, can be to be different from herein suitable
Sequence executes shown or described step.
Fig. 1 is the flow chart of data transmission method in cloud data system provided by the invention.Method shown in Fig. 1 includes:
Step 101, detection virtual machine receive data packet destination address type whether be physical network card address；
Specifically, can in pre-recorded network virtual machine address and physical network card address, in the data packet received,
Destination address is read, then the destination address is inquired for keyword, determines the type of the destination address；
If the type of step 102, the destination address for receiving data packet is the address of physical network card, it is retrieved as the void
The address information of the corresponding physical network card of quasi- machine configuration；
Step 103 judges whether described as the address information of the corresponding physical network card of the virtual machine configuration include institute
State the address information of the corresponding physical network card of destination address；
If step 104 includes, the data packet is sent directly to destination address；
If step 104 does not include, from the corresponding physical network card address information of the virtual machine, this biography is selected
The address information of defeated the used physical network card of operation；Using the address information of the physical network card of selection, the data packet is transmitted.
Embodiment of the method provided by the invention detects the destination address of the received data packet of virtual machine, works as detection
To destination address be physical network card address after, by obtain in advance can with the physical network card of virtual machine direct communication, by this
Data packet is sent to the physical network card, and sends data packets to corresponding destination address by the physical network card, realizes virtual
Machine and destination address are the normal communication of the network interface card of physical host, guarantee the Successful transmissions of data.
Embodiment of the method provided by the invention is described further below:
The present invention proposes a kind of new approaches of virtual network bandwidth that cloud computing system is improved using more network interface cards.Because of physics
MAC Address of Network Card can not be corresponding with virtual machine address.Virtual machine address is resolved to virtual machine MAC Address by ARP protocol.This causes
Data packet is unable to control RX path when passing through physical network card.On the other hand, when traditional more network interface card technology load balances
Source data packet address can be changed, can not be turned since shortage physical network card address corresponding with virtual machine address can not will lead to network packet
Issue virtual machine.Set forth herein a kind of more network interface card optimization methods based on People Near Me agency to solve the problems, such as this, improves cloud computing
The virtual network performance of system.
In an embodiment of the method provided by the invention, the corresponding Physical Network for being retrieved as the virtual machine configuration
Before the address information of card, the method also includes:
Address Resolution Protocol ARP request is sent, wherein the ARP request includes the address information of the virtual machine；
The arp reply that physical host returns to the ARP request is received, wherein the arp reply includes the physics master
The address information of physical network card on machine；
Establish the corresponding relationship of the address information of the virtual machine and the address information of physical network card.
By transmission ARP request, the address information of physical host is obtained, the update of information is completed in local APR record,
Corresponding relationship is established, provides information support for subsequent data transmission procedure.
Wherein, the address information of the physical network card using selection, before transmitting the data packet, the method is also wrapped
It includes:
ARP virtual machine is sent to the physical host and belongs to response message, and is detecting physical host completion place
After main machine structure updates, then carry out data packet transmission operation.
Specifically, needing physical host to be capable of the configuration requirement of matching virtual machine transmission before sending data, otherwise may
Therefore the possibility that data packet transmission failure can occur is detected before carrying out data, data transmission fails can be effectively reduced
Probability, guarantee data Successful transmissions.
It is described from the corresponding physical network card address information of the virtual machine in an embodiment of the method provided by the invention
In, select this transmission to operate the address information of used physical network card, comprising:
Obtain the load information of the corresponding physical network card of the virtual machine；
According to the load information of the physical network card, this transmission is selected to operate the address information of used physical network card.
Specifically, when selecting data terminal to carry out data forwarding for the virtual machine, need according to currently with
The load state that the virtual machine establishes the physical network card of corresponding relationship is evaluated, therefore balancing method of loads in the prior art
It is suitable for the present invention, details are not described herein again.
The data sent by the load state according to data relay station come coordination data, can more sufficiently effective benefit
With there are the performances of the physical network card of corresponding relationship with virtual machine, resource utilization is improved.
Wherein, the address information of the physical network card using selection, transmits the data packet, comprising:
The data packet of the virtual machine is sent to the master for the address information that destination address is the selected physical network card
Machine, and the host is notified to continue to forward the data packet.
Specifically, the destination address of data packet is the address of physical network card A, and in selection, there are corresponding relationships with virtual machine
Physical network card B after, which is first sent to physical network card B, physical network card B is reinformed and is sent to physical network card A.
It is illustrated below with application example provided by the invention:
The mentality of designing of network systems optimum framework based on neighbours agency is using neighbours' AgentX protocol, so that empty
Quasi- machine address can be corresponding with the generation of the address of multiple physical network cards.This enables virtual machine to make full use of physical network card in receiving end
Transmittability.
ARP neighbours agency is the key component of the more network interface card transmission of realization system, it is by extension ARP protocol, by virtual machine
The corresponding address at multiple physical network cards of IP address.As agency, it be responsible for the host ip that record is communicated with the virtual machine and
MAC, and be responsible for response ARP request or needed to generate arp reply according to load balance.
Fig. 2 is the interaction schematic diagram provided by the invention acted on behalf of using ARP neighbours and realize data communication.Method shown in Fig. 2
In, after the network communication of two nodes starts, the communication process of ARP neighbours agency is mainly comprised the following processes:
1, it when the network communication of two nodes starts, needs to realize network two, three interlayer address conversions by ARP protocol.
In destination response ARP request, system update virtual machine ARP table record.When arp reply reaches transmitting terminal, transmitting terminal is more
New virtual machine ARP table record.
2, it is corresponding to send the ownership response update of ARP virtual machine to transmitting terminal after updating virtual machine ARP table record for destination
Host structure, transmitting terminal receive ARP virtual machine ownership response when updates corresponding host structure.
3, transmitting terminal also sends ARP virtual machine to destination and belongs to response more cenotype after updating virtual machine ARP table record
The host structure answered, destination update corresponding host structure when receiving the ownership response of ARP virtual machine.
4, the data packet that virtual machine is sent selects proper reception network interface card MAC according to load balancing algorithm and replaces destination
MAC。
5, after receiving end receives network packet, according to IP address query expansion forwarding database updated data package destination
MAC。
Application example provided by the invention is made full use of using a kind of more network interface card optimization methods based on People Near Me agency
Transmission performance of more network interface cards in virtual system, to improve the virtual network bandwidth performance of cloud computing system.
Fig. 3 is the structure chart of data transmission device in cloud data system provided by the invention.Device shown in Fig. 3 includes:
Detection module 301, whether the type that the destination address of data packet is received for detecting virtual machine is physical network card
Address；
Module 302 is obtained, if the type of the destination address for receiving data packet is the address of physical network card, is obtained
For the address information of the corresponding physical network card of the virtual machine configuration；
Judgment module 303 is for judging described as the address information of the corresponding physical network card of the virtual machine configuration
The no address information including the corresponding physical network card of the destination address；
First transmission module 304, if the data packet is sent directly to destination address for including；
Second transmission module 305, if for not including, from the corresponding physical network card address information of the virtual machine
In, it selects this transmission to operate the address information of used physical network card, and the address information of the physical network card using selection, passes
The defeated data packet.
In one embodiment provided by the invention, described device further include:
First sending module, for the corresponding physical network card for being retrieved as the virtual machine configuration address information it
Before, Address Resolution Protocol ARP request is sent, wherein the ARP request includes the address information of the virtual machine；
Receiving module, the arp reply that the ARP request is returned for receiving physical host, wherein the arp reply packet
Include the address information of physical network card on the physical host；
Module is established, for establishing the corresponding relationship of the address information of the virtual machine and the address information of physical network card.
In one embodiment provided by the invention, described device further include:
Second sending module, for the address information in the physical network card using selection, before transmitting the data packet, to
The physical host sends ARP virtual machine and belongs to response message；
Control module for after detecting that the physical host completes host topology update, then carries out data packet biography
Defeated operation.
In one embodiment provided by the invention, second transmission module 305 includes:
Acquiring unit, for obtaining the load information of the corresponding physical network card of the virtual machine；
Selecting unit selects this transmission to operate used Physical Network for the load information according to the physical network card
The address information of card.
In one embodiment provided by the invention, second transmission module 305 is specifically used for:
The data packet of the virtual machine is sent to the master for the address information that destination address is the selected physical network card
Machine simultaneously notifies the host to continue to forward the data packet.
Installation practice provided by the invention detects the destination address of the received data packet of virtual machine, works as detection
To destination address be physical network card address after, by obtain in advance can with the physical network card of virtual machine direct communication, by this
Data packet is sent to the physical network card, and sends data packets to corresponding destination address by the physical network card, realizes virtual
Machine and destination address are the normal communication of the network interface card of physical host, guarantee the Successful transmissions of data.
Those of ordinary skill in the art will appreciate that computer journey can be used in all or part of the steps of above-described embodiment
Sequence process realizes that the computer program can be stored in a computer readable storage medium, the computer program exists
(such as system, unit, device) executes on corresponding hardware platform, when being executed, include the steps that embodiment of the method it
One or combinations thereof.
Optionally, integrated circuit can be used also to realize in all or part of the steps of above-described embodiment, these steps can
To be fabricated to integrated circuit modules one by one respectively, or make multiple modules or steps in them to single integrated electricity
Road module is realized.In this way, the present invention is not limited to any specific hardware and softwares to combine.
Each device/functional module/functional unit in above-described embodiment, which can be adopted, is realized with general computing device realization, it
Can be concentrated on a single computing device, can also be distributed over a network of multiple computing devices.
Each device/functional module/functional unit in above-described embodiment realized in the form of software function module and as
Independent product when selling or using, can store in a computer readable storage medium.Computer mentioned above
Read/write memory medium can be read-only memory, disk or CD etc..
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be subject to protection scope described in claim.
Claims (10)
1. data transmission method in a kind of cloud data system characterized by comprising
Detection virtual machine receive data packet destination address type whether be physical network card address；
If the type for receiving the destination address of data packet is the address of physical network card, it is retrieved as pair of the virtual machine configuration
The address information for the physical network card answered；
Judge whether described as the address information of the corresponding physical network card of the virtual machine configuration include the destination address pair
The address information for the physical network card answered；
If including the data packet is sent directly to destination address；
If not including, from the corresponding physical network card address information of the virtual machine, this transmission operation is selected to be used
The address information of physical network card；Using the address information of the physical network card of selection, the data packet is transmitted.
2. the method according to claim 1, wherein the corresponding physics for being retrieved as the virtual machine configuration
Before the address information of network interface card, the method also includes:
Address Resolution Protocol ARP request is sent, wherein the ARP request includes the address information of the virtual machine；
The arp reply that physical host returns to the ARP request is received, wherein the arp reply includes on the physical host
The address information of physical network card；
Establish the corresponding relationship of the address information of the virtual machine and the address information of physical network card.
3. according to the method described in claim 2, it is characterized in that, the address information of the physical network card using selection, passes
Before the defeated data packet, the method also includes:
ARP virtual machine is sent to the physical host and belongs to response message, and is detecting the physical host completion host
After topology update, then carry out data packet transmission operation.
4. the method according to claim 1, wherein described believe from the corresponding physical network card address of the virtual machine
In breath, this transmission is selected to operate the address information of used physical network card, comprising:
Obtain the load information of the corresponding physical network card of the virtual machine；
According to the load information of the physical network card, this transmission is selected to operate the address information of used physical network card.
5. method according to any one of claims 1 to 4, which is characterized in that the address of the physical network card using selection
Information transmits the data packet, comprising:
The data packet of the virtual machine is sent to the host for the address information that destination address is the selected physical network card, and
The host is notified to continue to forward the data packet.
6. data transmission device in a kind of cloud data system characterized by comprising
Detection module, for detect virtual machine receive data packet destination address type whether be physical network card address；
Module is obtained, if the type of the destination address for receiving data packet is the address of physical network card, is retrieved as described
The address information of the corresponding physical network card of virtual machine configuration；
Second transmission module, if not setting up corresponding pass for virtual machine physical network card corresponding with the destination address
System selects this transmission to operate the ground of used physical network card then from the corresponding physical network card address information of the virtual machine
Location information；
Whether judgment module includes institute for judging described as the address information of the corresponding physical network card of the virtual machine configuration
State the address information of the corresponding physical network card of destination address；
First transmission module, if the data packet is sent directly to destination address for including；
Second transmission module, if from the corresponding physical network card address information of the virtual machine, selection is originally for not including
Secondary transmission operates the address information of used physical network card, and the address information of the physical network card using selection, transmits the number
According to packet.
7. device according to claim 6, which is characterized in that described device further include:
First sending module, for sending out before being retrieved as the address information of corresponding physical network card of the virtual machine configuration
Address Resolution Protocol ARP is sent to request, wherein the ARP request includes the address information of the virtual machine；
Receiving module, the arp reply that the ARP request is returned for receiving physical host, wherein the arp reply includes institute
State the address information of physical network card on physical host；
Module is established, for establishing the corresponding relationship of the address information of the virtual machine and the address information of physical network card.
8. device according to claim 7, which is characterized in that described device further include:
Second sending module, for the address information in the physical network card using selection, before transmitting the data packet, to described
Physical host sends ARP virtual machine and belongs to response message；
Control module for after detecting that the physical host completes host topology update, then carries out data packet transmission behaviour
Make.
9. device according to claim 6, which is characterized in that second transmission module includes:
Acquiring unit, for obtaining the load information of the corresponding physical network card of the virtual machine；
Selecting unit selects this transmission to operate used physical network card for the load information according to the physical network card
Address information.
10. according to any device of claim 6 to 9, which is characterized in that second transmission module is specifically used for:
The data packet of the virtual machine is sent to the host for the address information that destination address is the selected physical network card simultaneously
The host is notified to continue to forward the data packet.
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| CN201810731894.XA CN108965494A (en) | 2018-07-05 | 2018-07-05 | Data transmission method and device in data system |
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| CN111355716A (en) * | 2020-02-22 | 2020-06-30 | 苏州浪潮智能科技有限公司 | Method, system, equipment and medium for determining unique identifier of virtual machine |
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Application publication date: 20181207 |