CN108989176A - A kind of virtual machine exchange visit methods, devices and systems - Google Patents
A kind of virtual machine exchange visit methods, devices and systems Download PDFInfo
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- CN108989176A CN108989176A CN201810913012.1A CN201810913012A CN108989176A CN 108989176 A CN108989176 A CN 108989176A CN 201810913012 A CN201810913012 A CN 201810913012A CN 108989176 A CN108989176 A CN 108989176A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
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- Computer Networks & Wireless Communication (AREA)
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- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention discloses a kind of virtual machine exchange visit methods, devices and systems.It is related to virtual machine field, solves the problems, such as that operation cost caused by existing three-layer equipment message transfer and network complexity are high.This method comprises: virtual switch receives the message that second virtual machine of first virtual machine into the second virtual network in the first virtual network is sent；The virtual switch determines the transmission path of the message according to preset data packet flow table, and the message is sent to second virtual machine.Technical solution provided by the invention is suitable for the virtual machine exchange visit of travelling across VLAN, realizes the virtual machine exchange visit of high-efficient low-complexity.
Description
Technical field
The present invention relates to virtual machine technique, espespecially a kind of virtual machine exchange visit methods, devices and systems.
Background technique
Under virtualized environment, if virtual machine is in different virtual LAN (VLAN) networks, between virtual machine mutually
It is logical that additional three-layer equipment (such as router) is needed to do message transfer, increase operation cost and network complexity.
Summary of the invention
In order to solve the above-mentioned technical problems, the present invention provides a kind of virtual machine exchange visit methods, devices and systems, pass through void
Quasi- interchanger completes the data exchange between different virtual LAN, solves fortune caused by existing three-layer equipment message transfer
Seek cost and the high problem of network complexity.
In order to reach the object of the invention, the present invention provides a kind of virtual machine exchange visit methods, comprising:
Virtual switch receives second virtual machine of first virtual machine into the second virtual network in the first virtual network
The message of transmission；
The virtual switch determines the transmission path of the message according to preset data packet flow table, by the message
It is sent to second virtual machine.
Preferably, the virtual switch determines the transmission path of the message according to preset data packet flow table, by institute
Stating the step of message is sent to second virtual machine includes:
According to the data packet flow table, add the first virtual network where first virtual machine for the message the
One label；
For the virtual switch according to preset mapping table, network where determining second virtual machine is described second empty
Quasi- network；
The virtual switch removes first label of the message according to the data packet flow table, described in addition
Second label of the second network；
Message added with second label is forwarded to second virtual machine by the virtual switch.
Preferably, virtual switch receives second of the first virtual machine in the first virtual network into the second virtual network
Before the step of message that virtual machine is sent, further includes:
Configuration includes the data packet flow table of forward rule.
The present invention also provides a kind of virtual machine exchange visit devices, comprising:
Data reception module, for receiving the first virtual machine in the first virtual network second into the second virtual network
The message that virtual machine is sent；
Data forwarding module, for determining the transmission path of the message according to preset data packet flow table, by the report
Text is sent to second virtual machine.
Preferably, the data forwarding module includes:
Label adding unit, for adding the first virtual machine place for the message according to the data packet flow table
The first virtual network the first label；
Lookup unit, for according to preset mapping table, network where determining second virtual machine to be described second empty
Quasi- network；
Label replaces unit, for removing first label of the message according to the data packet flow table, adds institute
State the second label of the second network；
Data forwarding unit, for the message for being added with second label to be forwarded to second virtual machine.
Preferably, the device further include:
Configuration module, for configuring the data packet flow table comprising forward rule.
The present invention also provides a kind of virtual machine exchange visit systems, the first virtual machine and position comprising being located at the first virtual network
It is placed in the second virtual machine of the second virtual network, which further includes virtual switch, and first virtual machine passes through described the
One virtual network is connect with the virtual switch, and second virtual machine passes through second virtual network and the virtual friendship
It changes planes connection；
The virtual switch, for receiving the first virtual machine in the first virtual network into the second virtual network
The message that two virtual machines are sent determines the transmission path of the message according to preset data packet flow table, and the message is sent
To second virtual machine.
Preferably, the virtual switch, is specifically used for according to the data packet flow table, for message addition described the
First label of the first virtual network where one virtual machine determines the second virtual machine place according to preset mapping table
Network is second virtual network, according to the data packet flow table, removes first label of the message, described in addition
Message added with second label is forwarded to second virtual machine by the second label of the second network.
Preferably, the virtual switch is also used to configure the data packet flow table comprising forward rule.
The present invention provides a kind of virtual machine exchange visit methods, devices and systems, virtual switch receives the first virtual network
In the message that sends of second virtual machine of first virtual machine into the second virtual network, according to preset data packet flow table, really
The transmission path of the fixed message, is sent to second virtual machine for the message.Virtual machine exchange visit between multi-VLAN is realized,
Solve the problems, such as that operation cost caused by existing three-layer equipment message transfer and network complexity are high.
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 a kind of flow diagram for virtual machine exchange visit method that one embodiment of the invention provides；
Fig. 2 is the idiographic flow schematic diagram of step 103 in Fig. 1；
Fig. 3 is the realization principle schematic diagram for another virtual machine exchange visit method that one embodiment of the invention provides；
Fig. 4 is a kind of structural schematic diagram for virtual machine exchange visit device that one embodiment of the invention provides；
Fig. 5 is the structural schematic diagram of data forwarding module 402 in Fig. 4.
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.
Under virtualized environment, if virtual machine is in different vlan networks, intercommunication needs additionally between virtual machine
Three-layer equipment (such as router) does message transfer, increases operation cost and network complexity.
To solve the above-mentioned problems, the embodiment of the present invention proposes one kind and realizes void between multi-VLAN under virtualized environment
The virtual machine exchange visit methods, devices and systems that quasi- machine is exchanged visits cut operating costs and network without increasing additional three-layer equipment
Complexity.
One embodiment of the invention provides a kind of virtual machine exchange visit method, and the stream of virtual machine exchange visit is completed using this method
Journey is as shown in Figure 1, comprising:
Step 101, configuration include the data packet flow table of forward rule.
Step 102, virtual switch receive the of the first virtual machine in the first virtual network into the second virtual network
The message that two virtual machines are sent.
Step 103, the virtual switch determine the transmission path of the message according to preset data packet flow table, will
The message is sent to second virtual machine.
This step is specifically as shown in Figure 2, comprising:
Step 1031, according to the data packet flow table, first where first virtual machine is added for the message is empty
First label of quasi- network.
Step 1032, the virtual switch determine that network where second virtual machine is according to preset mapping table
Second virtual network；The mapping table is specially VLAN mapping table.
Step 1033, the virtual switch remove first label of the message according to the data packet flow table,
Add the second label of second network.
Message added with second label is forwarded to described second virtually by step 1034, the virtual switch
Machine.
One embodiment of the invention additionally provides a kind of virtual machine exchange visit method, needs to pass through on OVS virtual switch
The data packets flow tables such as specific openflow flow table are added, it is real to realize that the functions such as addition, change, the deletion of message VLAN tag are come
The exchanging visit of virtual machine between existing multi-VLAN.
As shown in figure 3, two virtual machines belong to different VLAN, virtual machine 1 belongs to the realization principle of the embodiment of the present invention
VLAN100, virtual machine 2 belong to VLAN200, and two virtual machines can be realized by the openflow flow table of ovs virtual switch
Access mutually.
Specific implementation process is as follows:
(1) virtual machine 1 accesses virtual machine 2, and the message that virtual machine 1 issues enters ovs virtual switch, virtually handed over by ovs
It changes planes and stamps VLAN100 label.
(2) inside ovs virtual switch, by adding openflow flow table, so that the message that virtual machine 1 issues removes
The label of VLAN100 is that the message that virtual machine 1 issues is stamped again by openflow flow table according to preset mapping table
The message of the label of VLAN200, the sending of such virtual machine 1 can normally reach virtual machine 2.
It is specific by addition on OVS virtual switch according to preset VLAN mapping table under virtualized environment
Openflow flow table stamps VLAN label to the flow of virtual machine, according to preset VLAN mapping table, in OVS virtual switch
Upper pass through adds specific openflow flow table, realizes that the functions such as addition, change, the deletion of message VLAN tag are more to realize
The exchanging visit of virtual machine between VLAN.
One embodiment of the invention additionally provides a kind of virtual machine exchange visit device, and structure is as shown in Figure 4, comprising:
Data reception module 401, for receiving the first virtual machine in the first virtual network into the second virtual network
The message that second virtual machine is sent；
Data forwarding module 402, for determining the transmission path of the message according to preset data packet flow table, by institute
It states message and is sent to second virtual machine.
Preferably, the structure of the data forwarding module 402 is as shown in Figure 5, comprising:
Label adding unit 4021, for adding first virtual machine for the message according to the data packet flow table
First label of first virtual network at place；
Lookup unit 4022 is described for network where according to preset mapping table, determining second virtual machine
Two virtual networks；
Label replaces unit 4023, for removing first label of the message, adding according to the data packet flow table
Add the second label of second network；
Data forwarding unit 4024, for the message for being added with second label to be forwarded to second virtual machine.
Preferably, the device further include:
Configuration module 403, for configuring the data packet flow table comprising forward rule.
One embodiment of the invention additionally provides a kind of virtual machine exchange visit system, and first comprising being located at the first virtual network
In the second virtual machine of the second virtual network, which further includes virtual switch for virtual machine and position, first virtual machine
Connect by first virtual network with the virtual switch, second virtual machine by second virtual network with
The virtual switch connection；
The virtual switch, for receiving the first virtual machine in the first virtual network into the second virtual network
The message that two virtual machines are sent determines the transmission path of the message according to preset data packet flow table, and the message is sent
To second virtual machine.
Preferably, the virtual switch, is specifically used for according to the data packet flow table, for message addition described the
First label of the first virtual network where one virtual machine determines the second virtual machine place according to preset mapping table
Network is second virtual network, according to the data packet flow table, removes first label of the message, described in addition
Message added with second label is forwarded to second virtual machine by the second label of the second network.
Preferably, the virtual switch is also used to configure the data packet flow table comprising forward rule.
The embodiment provides a kind of virtual machine exchange visit methods, devices and systems, virtual switch receives first
The message that second virtual machine of first virtual machine into the second virtual network in virtual network is sent, according to preset data packet
Flow table determines the transmission path of the message, and the message is sent to second virtual machine.It realizes virtual between multi-VLAN
Machine is exchanged visits, and solves the problems, such as that operation cost caused by existing three-layer equipment message transfer and network complexity are high.
By adding specific openflow flow table on OVS virtual switch, the addition, more of message VLAN tag is realized
The functions such as change, delete to realize that the exchanging visit of virtual machine between multi-VLAN cuts operating costs without increasing additional hardware router
And network complexity.
It will appreciated by the skilled person that whole or certain steps, system, dress in method disclosed hereinabove
Functional module/unit in setting may be implemented as software, firmware, hardware and its combination appropriate.In hardware embodiment,
Division between the functional module/unit referred in the above description not necessarily corresponds to the division of physical assemblies；For example, one
Physical assemblies can have multiple functions or a function or step and can be executed by several physical assemblies cooperations.Certain groups
Part or all components may be implemented as by processor, such as the software that digital signal processor or microprocessor execute, or by
It is embodied as hardware, or is implemented as integrated circuit, such as specific integrated circuit.Such software can be distributed in computer-readable
On medium, computer-readable medium may include computer storage medium (or non-transitory medium) and communication media (or temporarily
Property medium).As known to a person of ordinary skill in the art, term computer storage medium is included in for storing information (such as
Computer readable instructions, data structure, program module or other data) any method or technique in the volatibility implemented and non-
Volatibility, removable and nonremovable medium.Computer storage medium include but is not limited to RAM, ROM, EEPROM, flash memory or its
His memory technology, CD-ROM, digital versatile disc (DVD) or other optical disc storages, magnetic holder, tape, disk storage or other
Magnetic memory apparatus or any other medium that can be used for storing desired information and can be accessed by a computer.This
Outside, known to a person of ordinary skill in the art to be, communication media generally comprises computer readable instructions, data structure, program mould
Other data in the modulated data signal of block or such as carrier wave or other transmission mechanisms etc, and may include any information
Delivery media.
Claims (9)
1. a kind of virtual machine exchange visit method characterized by comprising
Virtual switch receives second virtual machine of first virtual machine into the second virtual network in the first virtual network and sends
Message；
The virtual switch determines the transmission path of the message according to preset data packet flow table, and the message is sent
To second virtual machine.
2. virtual machine exchange visit method according to claim 1, which is characterized in that the virtual switch is according to preset number
According to packet stream table, the step of determining the transmission path of the message, the message is sent to second virtual machine, includes:
According to the data packet flow table, the first mark of the first virtual network where first virtual machine is added for the message
Label；
For the virtual switch according to preset mapping table, network where determining second virtual machine is second virtual net
Network；
The virtual switch removes first label of the message, addition described second according to the data packet flow table
Second label of network；
Message added with second label is forwarded to second virtual machine by the virtual switch.
3. virtual machine exchange visit method according to claim 1, which is characterized in that virtual switch receives the first virtual network
In second virtual machine of first virtual machine into the second virtual network send message the step of before, further includes:
Configuration includes the data packet flow table of forward rule.
4. a kind of virtual machine exchange visit device characterized by comprising
Data reception module, it is second virtual into the second virtual network for receiving the first virtual machine in the first virtual network
The message that machine is sent；
Data forwarding module sends out the message for determining the transmission path of the message according to preset data packet flow table
It send to second virtual machine.
5. virtual machine exchange visit device according to claim 4, which is characterized in that the data forwarding module includes:
Label adding unit adds the where first virtual machine for the message for according to the data packet flow table
First label of one virtual network；
Lookup unit, for according to preset mapping table, network where determining second virtual machine to be second virtual net
Network；
Label replaces unit, for according to the data packet flow table, removing first label of the message, adds described the
Second label of two networks；
Data forwarding unit, for the message for being added with second label to be forwarded to second virtual machine.
6. virtual machine exchange visit device according to claim 4, which is characterized in that the device further include:
Configuration module, for configuring the data packet flow table comprising forward rule.
7. a kind of virtual machine exchange visit system, comprising the first virtual machine for being located at the first virtual network and position in the second virtual network
The second virtual machine, which is characterized in that the system further includes virtual switch, and first virtual machine is virtual by described first
Network is connect with the virtual switch, and second virtual machine is connected by second virtual network and the virtual switch
It connects；
The virtual switch, for receiving second void of the first virtual machine in the first virtual network into the second virtual network
The message that quasi- machine is sent determines the transmission path of the message according to preset data packet flow table, and the message is sent to institute
State the second virtual machine.
8. virtual machine exchange visit system according to claim 7, which is characterized in that
The virtual switch, is specifically used for according to the data packet flow table, adds the first virtual machine institute for the message
The first label of the first virtual network determine that network where second virtual machine is described according to preset mapping table
Second virtual network removes first label of the message according to the data packet flow table, adds second network
Message added with second label is forwarded to second virtual machine by the second label.
9. virtual machine exchange visit system according to claim 7, which is characterized in that
The virtual switch is also used to configure the data packet flow table comprising forward rule.
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| CN113824609A (en) * | 2021-08-16 | 2021-12-21 | 紫光云(南京)数字技术有限公司 | SDN controller radar detection method |
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Application publication date: 20181211 |