CN106998297B - A kind of virtual machine migration method and device - Google Patents
A kind of virtual machine migration method and device Download PDFInfo
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- CN106998297B CN106998297B CN201710174926.6A CN201710174926A CN106998297B CN 106998297 B CN106998297 B CN 106998297B CN 201710174926 A CN201710174926 A CN 201710174926A CN 106998297 B CN106998297 B CN 106998297B
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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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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
- G06F9/45533—Hypervisors; Virtual machine monitors
- G06F9/45558—Hypervisor-specific management and integration aspects
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/48—Program initiating; Program switching, e.g. by interrupt
- G06F9/4806—Task transfer initiation or dispatching
- G06F9/4843—Task transfer initiation or dispatching by program, e.g. task dispatcher, supervisor, operating system
- G06F9/485—Task life-cycle, e.g. stopping, restarting, resuming execution
- G06F9/4856—Task life-cycle, e.g. stopping, restarting, resuming execution resumption being on a different machine, e.g. task migration, virtual machine migration
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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
- H04L12/4633—Interconnection of networks using encapsulation techniques, e.g. tunneling
-
- 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
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/74—Address processing for routing
- H04L45/745—Address table lookup; Address filtering
-
- 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
- G06F2009/4557—Distribution of virtual machine instances; Migration and load balancing
-
- 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]
Abstract
The disclosure provides a kind of virtual machine migration method and device, this method comprises: receiving the advertising of route message that the second equipment is sent, and migration attribute, the corresponding address information of virtual machine are parsed from advertising of route message, the migration attribute indicates that virtual machine migrates；Forwarding table is inquired by the address information, if obtaining with the matched forwarding-table item of the address information, the outgoing interface transmission ARP request message recorded by the forwarding-table item；If receiving the arp reply message for the ARP request message, refuse the forwarding-table item according to the advertising of route information updating.By the technical solution of the disclosure, when attacker forges the ARP message of virtual machine, will not mistake the outgoing interface study by virtual machine to the tunnel VXLAN, message can be really transferred to virtual machine, the business of virtual machine will not interrupt, and improve user's use feeling, improve safety.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of virtual machine migration methods and device.
Background technique
VXLAN (Virtual eXtensible Local Area Network, expansible Virtual Local Area Network) is to be based on
IP network, using " MAC (Media Access Control, media access control) in UDP (User Datagram
Protocol, User Datagram Protocol) " two-layer VPN (Virtual Private Network, the Virtual Private Network of packing forms
Network) technology.VXLAN can be based on existing service provider or enterprise IP network, provide two layers of interconnection for the website of dispersion,
And business isolation can be provided for different tenants.
VXLAN is mainly used in data center network, as shown in Figure 1, to be illustrated using the data center network of VXLAN
Figure can create multiple VM (Virtual Machine, virtual machine) in server, different VM may belong to different VXLAN or
Identical VXLAN, the VM for belonging to identical VXLAN are in same logic double layer network, and double layer intercommunication, belongs to difference each other
Two layers of isolation between the VM of VXLAN.
As shown in Figure 1, VM1 can move to server 2 from server 1, then VTEP (VXLAN Tunnel End
Point, VXLAN endpoint of a tunnel) 2 receiving from VM1 ARP (Address Resolution Protocol, address solution
Analyse agreement) after message, VM1 routing is noticed to VTEP 1/VTEP 3 by the tunnel VXLAN, when VTEP 1/VTEP 3 is received
When the VM1 routing of VTEP2 notice, receiving the receiving interface that VM1 notice routes, (i.e. outgoing interface is directed toward VTEP1/ as outgoing interface
The tunnel VXLAN of VTEP 3 and VTEP2), when sending the message for being directed to VM1, VTEP 2 is sent to by the tunnel VXLAN.
But if VM1 does not move to server 2 from server 1, and attacker forges the ARP message of VM1, concurrently
VTEP 2 is given, in this way, the outgoing interface by VM1 that will lead to 3 mistake of VTEP 1/VTEP learns to the tunnel VXLAN, and is led
It causes message that can not really be transferred to VM1, causes the business of VM1 that can interrupt, influence the use feeling of user, but also meeting
Bring security risk.
Summary of the invention
The disclosure provides a kind of virtual machine migration method, is applied to the first equipment, this method comprises:
Receive the advertising of route message of the second equipment transmission, and parse from the advertising of route message migration attribute,
The corresponding address information of virtual machine, the migration attribute indicate that the virtual machine migrates；
By the address information inquire forwarding table, if obtain with the matched forwarding-table item of the address information, pass through
The outgoing interface of the forwarding-table item record sends the ARP request message for being directed to the virtual machine；
If receiving the arp reply message for the ARP request message, refuse according to the advertising of route message more
The new forwarding-table item.
The disclosure provides a kind of virtual machine migration method, is applied to the second equipment, this method comprises:
When receiving the ARP message for carrying out self virtualizing machine, if being had existed in forwarding table and the virtual machine matched
One forwarding-table item then adds and matched second forwarding-table item of the virtual machine in the forwarding table；Wherein, described first turn
The outgoing interface of forwarding list item record is the tunnel face between second equipment and the first equipment, the second forwarding-table item record
Outgoing interface is interface corresponding with virtual machine in second equipment；
According to the outgoing interface of first forwarding-table item, advertising of route message, the advertising of route are sent to the first equipment
Message carries the address information of migration attribute and the virtual machine, and the migration attribute indicates that the virtual machine migrates；With
The first equipment is set to determine whether the virtual machine migrates according to the advertising of route message.
The disclosure provides a kind of virtual machine (vm) migration device, is applied to the first equipment, which includes:
Receiving module, for receiving the advertising of route message of the second equipment transmission；
Module is obtained, for parsing migration attribute, the corresponding address information of virtual machine from the advertising of route message,
Wherein, the migration attribute indicates that the virtual machine migrates；
Sending module, for inquiring forwarding table by the address information, if obtaining and matched turn of the address information
Forwarding list item then sends the ARP request message for being directed to the virtual machine by the outgoing interface that the forwarding-table item records；
Update module, for when receiving the arp reply message for the ARP request message, then refusal to be according to institute
State forwarding-table item described in advertising of route information updating.
The disclosure provides a kind of virtual machine (vm) migration device, is applied to the second equipment, comprising:
Processing module, for when receiving the ARP message for carrying out self virtualizing machine, if being had existed in forwarding table and the void
Quasi- matched first forwarding-table item of machine, addition and matched second forwarding-table item of the virtual machine in the forwarding table；It is described
The outgoing interface of first forwarding-table item record is the tunnel face between the second equipment and the first equipment, the second forwarding-table item record
Outgoing interface be interface corresponding with virtual machine in the second equipment；
Sending module, for the outgoing interface according to first forwarding-table item, the first equipment of Xiang Suoshu sends advertising of route
Message, wherein the advertising of route message carries the address information of migration attribute and the virtual machine, and the migration attribute indicates
The virtual machine migrates；So that first equipment determines whether the virtual machine moves according to the advertising of route message
It moves.
Based on the above-mentioned technical proposal, in the embodiment of the present disclosure, after the advertising of route message for receiving the transmission of the second equipment,
Be not directly according to advertising of route information updating forwarding-table item, but when advertising of route message carry migration attribute when, determine
Whether virtual machine moves to the server connecting with the second equipment, if not, just refusal updates forwarding-table item, in this way, when attack
When person forges the ARP message of virtual machine, the outgoing interface study by virtual machine that the first equipment will not be wrong can be incited somebody to action to tunnel face
Message is really transferred to virtual machine, and the business of virtual machine will not interrupt, and improves user's use feeling, improves safety, protects
Demonstrate,prove stability.
Detailed description of the invention
It, below will be to the disclosure in order to clearly illustrate the embodiment of the present disclosure or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is only that some embodiments recorded in the disclosure for those of ordinary skill in the art can also be according to this public affairs
These attached drawings for opening embodiment obtain other attached drawings.
Fig. 1 is the data center network schematic diagram using VXLAN；
Fig. 2 is the flow chart of the virtual machine migration method in a kind of embodiment of the disclosure；
Fig. 3 is the hardware structure diagram of the first equipment in a kind of embodiment of the disclosure；
Fig. 4 is the structure chart of the virtual machine (vm) migration device in a kind of embodiment of the disclosure；
Fig. 5 is the hardware structure diagram of the second equipment in a kind of embodiment of the disclosure；
Fig. 6 is the structure chart of the virtual machine (vm) migration device in a kind of embodiment of the disclosure.
Specific embodiment
In the term that the embodiment of the present disclosure uses merely for the sake of for the purpose of describing particular embodiments, rather than limit this public affairs
It opens.The "an" of singular used in the disclosure and claims, " described " and "the" are also intended to including most shapes
Formula, unless context clearly shows that other meanings.It is also understood that term "and/or" used herein refers to comprising one
A or multiple associated any or all of project listed may combine.
It will be appreciated that though various information, but this may be described using term first, second, third, etc. in the disclosure
A little information should not necessarily be limited by these terms.These terms are only used to for same type of information being distinguished from each other out.For example, not departing from
In the case where disclosure range, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as
One information.Depending on context, in addition, used word " if " can be construed to " ... when ", alternatively,
" when ... ", alternatively, " in response to determination ".
A kind of virtual machine migration method is proposed in the embodiment of the present disclosure, this method can be applied to include the first equipment and
The system of two equipment, which can also include virtual machine, and virtual machine can be migrated in the first equipment and the second equipment room.In
In practical application, the first equipment and the second equipment can be opposite, and such as the first equipment can also be the second equipment, and second sets
Standby or the first equipment, it is without limitation.
It is shown in Figure 2, it is the flow chart of virtual machine migration method, this method may include:
Step 201, the second equipment is receiving ARP message (such as ARP request message or gratuitous ARP for carrying out self virtualizing machine
Message etc.) when, if had existed in forwarding table with matched first forwarding-table item of the virtual machine, in forwarding table addition and should
Matched second forwarding-table item of virtual machine, and according to the outgoing interface of first forwarding-table item (between the second equipment and the first equipment
Tunnel face), to the first equipment send advertising of route message.
Wherein, the outgoing interface of the first forwarding-table item record is tunnel face (such as VXLAN between the second equipment and the first equipment
Tunnel), and the second forwarding-table item record outgoing interface be in the second equipment interface corresponding with virtual machine (for example, the second equipment
The interface of server where connecting virtual machine).
In one example, the second equipment is when receiving the ARP message for carrying out self virtualizing machine, if having existed in forwarding table
With matched first forwarding-table item of the virtual machine, then illustrate that this virtual machine may be to move to second equipment, therefore, root
According to the ARP message received, addition and matched second forwarding-table item of the virtual machine in forwarding table, and execute subsequent step；
In the case, it can be coexisted in forwarding table and matched first forwarding-table item of the virtual machine and the second forwarding-table item.If forwarding table
In not with matched first forwarding-table item of the virtual machine, then illustrate that this virtual machine is line on the second device, rather than
Migration, therefore, according to the ARP message received, addition and matched second forwarding-table item of the virtual machine in forwarding table, but
It is no longer to execute subsequent step, but handled using traditional process, this processing is repeated no more.
In one example, above-mentioned advertising of route message can carry the address information of migration attribute and virtual machine, this is moved
Moving attribute indicates that the virtual machine migrates.Wherein, which can include but is not limited to MAC (Media Access
Control, media access control) address and/or IP (Internet Protocol, the agreement interconnected between network) address.It should
Attribute is migrated as that by the migration attribute, can make to receive the road according to the label of actual conditions arbitrary disposition, such as 123
Known by the equipment of notice message, which issued because of virtual machine (vm) migration.
In one example, for " according to the outgoing interface of first forwarding-table item to the first equipment send advertising of route disappear
The process of breath ", can include but is not limited to such as under type:
Mode one, the second equipment can first add second after receiving the ARP message for carrying out self virtualizing machine in forwarding table
Then forwarding-table item sends advertising of route message to the first equipment；In the case, due to existing and virtual machine in forwarding table
The first forwarding-table item and the second forwarding-table item matched, then the second equipment can be first from the first forwarding-table item and the second forwarding-table item
Choose the forwarding-table item that outgoing interface is tunnel face, i.e. the first forwarding-table item, then according to the outgoing interface of the first forwarding-table item to the
One equipment sends advertising of route message.
Mode two, the second equipment can first send to the first equipment and route after receiving the ARP message for carrying out self virtualizing machine
Then notice message adds the second forwarding-table item in forwarding table；In the case, due to being only existed in forwarding table and virtual machine
Matched first forwarding-table item, therefore advertising of route directly can be sent to the first equipment according to the outgoing interface of the first forwarding-table item
Then message adds the second forwarding-table item in forwarding table again.
Wherein, the effect that advertising of route message carries migration attribute, which may is that, makes the first equipment according to advertising of route message
Determine whether virtual machine moves to the second equipment, the processing of the first equipment is referring to step 202-204.Specifically, if advertising of route
Message carries migration attribute, then the first equipment is it needs to be determined that whether virtual machine moves to the second equipment.If advertising of route message is not
Migration attribute is carried, then uses traditional approach, forwarding-table item is updated according to the address information that advertising of route message carries, and is not had to
Determine whether virtual machine moves to the second equipment.
Step 202, the first equipment receives the advertising of route message that the second equipment is sent, and solves from the advertising of route message
The address information of migration attribute, virtual machine is precipitated, which indicates that virtual machine migrates.
Step 203, the first equipment inquires forwarding table by the address information, if obtaining and the matched forwarding of the address information
List item, the then outgoing interface recorded by the forwarding-table item are (i.e. corresponding with the address information that the advertising of route message carries to go out to connect
Mouthful) send the ARP request message for being directed to the virtual machine.If do not obtain with the matched forwarding-table item of the address information, directly exist
It is established and the matched forwarding-table item of the address information in forwarding table.
In one example, the first equipment can be known as one in each list item in local maintenance forwarding table, the forwarding table
Therefore a forwarding-table item, mapping relations of the forwarding-table item for recording address information and outgoing interface disappear by advertising of route
When the address information that breath carries inquires forwarding table, so that it may obtain with the matched forwarding-table item of the address information, then can be from
Outgoing interface corresponding with the address information is obtained in the forwarding-table item.
In one example, the source address of the ARP request message is the address information of the first equipment, and destination address is the void
The address information of quasi- machine, that is, the address information that advertising of route message carries.
In one example, the first equipment inquires forwarding table by the address information, obtains matched with the address information
After forwarding-table item, the outgoing interface of forwarding-table item record can also be inquired.If the outgoing interface is tunnel face, illustrate virtual machine
It is not whether not have to inquiry virtual machine from the first equipment transportation from the first equipment transportation to other equipment, therefore, directly utilize
The receiving interface (i.e. tunnel face between the first equipment and the second equipment) for receiving the advertising of route message updates the forwarding table
The outgoing interface of item record.If the outgoing interface is the interface connecting in the first equipment with server, illustrate that virtual machine may be from
Whether one equipment transportation needs to inquire virtual machine from the first equipment transportation to other equipment to other equipment, therefore, the first equipment
The step of executing " ARP request message for being directed to virtual machine is sent by the outgoing interface that the forwarding-table item records ".
Step 204, if receiving the arp reply message for ARP request message, the first equipment is refused according to the routing
Notice message updates forwarding-table item, i.e., updates connecing out for forwarding-table item without using the receiving interface for receiving the advertising of route message
Mouthful.If being not received by the arp reply message for ARP request message in preset time, the first equipment utilization receives this
The receiving interface of advertising of route message updates the outgoing interface of forwarding-table item record, which is the first equipment and the second equipment
Between tunnel face.
In one example, if virtual machine is not from the first equipment transportation to the second equipment, virtual machine, which can receive, to be directed to
The ARP request message of the virtual machine sends the arp reply message for being directed to the ARP request message to the first equipment.If virtual machine is
Through from the first equipment transportation to the second equipment, then virtual machine can not receive the ARP request message for the virtual machine, Wu Fafa
Send the arp reply message for the ARP request message.
In one example, if the first equipment receives the arp reply message for the ARP request message, illustrate void
Quasi- machine does not migrate, and the first equipment can send the first notice response message to the second equipment, which is used for
Indicate that virtual machine does not migrate；Alternatively, being said if the first equipment is not received by the arp reply message for the ARP request message
Bright virtual machine is had moved, and the first equipment can send the second notice response message to the second equipment, the second notice response message
For indicating that virtual machine is had moved.
Further, if the second equipment receives the first notice response message of the first equipment transmission, void can be determined
Quasi- machine does not migrate, and deletes the second forwarding-table item；If the second equipment receives the second notice response message of the first equipment transmission,
It can then determine that virtual machine is had moved, and delete the first forwarding-table item.
It in practical applications, can also include one or more third in system in addition to the first equipment and the second equipment
Equipment, third equipment are connect by tunnel (such as tunnel VXLAN) with the first equipment, and are connect by tunnel with the second equipment.Needle
It, can be just like under type to the renewal process of the forwarding-table item of third equipment:
Mode one, the second equipment only go out to connect after receiving the ARP message for carrying out self virtualizing machine according to the first forwarding-table item
Mouth sends advertising of route message to the first equipment, without sending advertising of route message to third equipment.On this basis, it second sets
For after receiving the first notice response message of the first equipment transmission, advertising of route message is not sent to third equipment, i.e.,
Third equipment will not receive advertising of route message, would not also update relevant forwarding-table item.Second equipment is receiving
After the second notice response message that one equipment is sent, advertising of route message is sent to third equipment, which takes
Address information with migration attribute and virtual machine, the migration attribute indicate that virtual machine migrates.Third equipment passes through the address
Information inquire forwarding table, if obtain with the matched forwarding-table item of the address information, can inquire the forwarding-table item record go out
Interface.If the outgoing interface of forwarding-table item record is tunnel face, the receiving interface (i.e. for receiving advertising of route message is utilized
Tunnel face between three equipment and the second equipment) update the outgoing interface that the forwarding-table item records.
Mode two, the second equipment are after receiving the ARP message for carrying out self virtualizing machine, in addition to going out according to the first forwarding-table item
Interface sends advertising of route message to the first equipment, also sends advertising of route message to third equipment, which takes
Address information with migration attribute and virtual machine, the migration attribute indicate that virtual machine migrates.Third equipment passes through the address
Information inquire forwarding table, if obtain with the matched forwarding-table item of the address information, inquire the forwarding-table item record outgoing interface.
If the outgoing interface of forwarding-table item record is tunnel face, directly utilization receives the receiving interface of the advertising of route message (i.e.
Tunnel face between third equipment and the second equipment) update the outgoing interface that the forwarding-table item records.
It on this basis, can also be to if the second equipment receives the first notice response message of the first equipment transmission
Third equipment sends the route withdraw message for being directed to the advertising of route message, which carries the address of the virtual machine
Information, so that third device revocation and the matched forwarding-table item of the address information.In addition, if the second equipment receives the first equipment
The the second notice response message sent, then terminate process.
Based on the above-mentioned technical proposal, in the embodiment of the present disclosure, after the advertising of route message for receiving the transmission of the second equipment,
Be not directly according to advertising of route information updating forwarding-table item, but when advertising of route message carry migration attribute when, determine
Whether virtual machine moves to the server connecting with the second equipment, if not, just refusal updates forwarding-table item, in this way, when attack
When person forges the ARP message of virtual machine, the outgoing interface study by virtual machine that the first equipment will not be wrong can be incited somebody to action to tunnel face
Message is really transferred to virtual machine, and the business of virtual machine will not interrupt, and improves user's use feeling, improves safety, protects
Demonstrate,prove stability.
Below in conjunction with application scenarios shown in FIG. 1, above-mentioned technical proposal is described in detail.In Fig. 1, VTEP 1 is logical
It crosses interface 1 to connect with server 1, VTEP 2 is connect by interface 2 with server 2, and VTEP 1 passes through the tunnel VXLAN 1 and VTEP
2 connections, VTEP 1 are connect by the tunnel VXLAN 2 with VTEP 3, and VTEP 2 is connect by the tunnel VXLAN 3 with VTEP 3, VM 1
It is deployed in server 1.VTEP 1 can be the first equipment, and VTEP 2 can be the second equipment, and VTEP 3 can be third equipment.
Under above-mentioned application scenarios, then the virtual machine migration method in the embodiment of the present disclosure may include:
Step 1, when VM 1 is when VTEP 1 is online, VTEP 1 generates the forwarding-table item of VM 1, it is assumed that the IP address of VM 1
Example for 10.1.1.2/24, MAC Address 1-1-1, forwarding-table item is as shown in table 1.
Table 1
| IP address | MAC Address | Outgoing interface |
| 10.1.1.2/24 | 1-1-1 | Interface 1 |
Step 2, VTEP 1 by the tunnel VXLAN 1 to VTEP 2 send advertising of route message, by the tunnel VXLAN 2 to
VTEP 3 sends advertising of route message.Wherein, which carries the IP address 10.1.1.2/24 and MAC of VM 1
Location 1-1-1, and advertising of route message does not carry migration attribute.
Turning for VM 1 can be generated after receiving the advertising of route message by the tunnel VXLAN 1 in step 3, VTEP 2
Forwarding list item, as shown in table 2.In addition, VTEP 3 can be generated after receiving the advertising of route message by the tunnel VXLAN 2
The forwarding-table item of VM 1, as shown in table 3.
Table 2
| IP address | MAC Address | Outgoing interface |
| 10.1.1.2/24 | 1-1-1 | The tunnel VXLAN 1 |
Table 3
| IP address | MAC Address | Outgoing interface |
| 10.1.1.2/24 | 1-1-1 | The tunnel VXLAN 2 |
Step 4 moves to server 2 from server 1 as VM 1, and when VTEP 2 is online, then VTEP 2 can receive
To the ARP message from VM 1, and parse from the ARP message IP address 10.1.1.2/24 and MAC Address 1-1- of VM 1
1.Due to the IP address 10.1.1.2/24 and MAC Address 1-1-1 of recorded VM 1 in table 2, hence, it can be determined that VM 1 is
From other server migrations to server 2.
Step 5, VTEP 2 are that VM 1 generates a new forwarding-table item, after generating new forwarding-table item, before not deleting
Through existing forwarding-table item, i.e. two forwarding-table items coexist, and the outgoing interface of a forwarding-table item is the tunnel VXLAN 1, another turn
The outgoing interface of forwarding list item is interface 2, i.e., table 2 is updated to table 4.
Table 4
| IP address | MAC Address | Outgoing interface |
| 10.1.1.2/24 | 1-1-1 | The tunnel VXLAN 1 |
| 10.1.1.2/24 | 1-1-1 | Interface 2 |
Step 6, VTEP 2 choose the forwarding table that outgoing interface is the tunnel VXLAN from 1 corresponding two forwarding-table item of VM
, i.e., outgoing interface is the forwarding-table item in the tunnel VXLAN 1 in table 4, then sends advertising of route to VTEP 1 by the tunnel VXLAN 1
Message, wherein the advertising of route message carries the IP address 10.1.1.2/24 and MAC Address 1-1-1 of VM 1, and advertising of route
Message carries migration attribute.
Step 7, VTEP 1 pass through IP address 10.1.1.2/ after receiving advertising of route message by the tunnel VXLAN 1
24 and MAC Address 1-1-1 inquires forwarding table, obtains matched forwarding-table item, and as shown in table 1, forwarding-table item record goes out to connect
Mouth is interface 1 (interface connecting with server 1), executes step 8.
Step 8, VTEP 1 send ARP request message, the ARP by the outgoing interface (interface 1) of forwarding-table item shown in table 1
The purpose IP address of request message is 10.1.1.2/24, target MAC (Media Access Control) address 1-1-1.
Step 9 assumes that VM 1 moves to server 2 from server 1, then VTEP 1 will be unable to connect within a preset time
Arp reply message is received, therefore, VTEP 1 updates 1 institute of table using the receiving interface (i.e. the tunnel VXLAN 1) of advertising of route message
Table 1 is updated to table 5 by the outgoing interface of the forwarding-table item shown.
Table 5
| IP address | MAC Address | Outgoing interface |
| 10.1.1.2/24 | 1-1-1 | The tunnel VXLAN 1 |
Step 10, VTEP 1 send the second notice response message by the tunnel VXLAN 1, and the second notice response message carries
The IP address 10.1.1.2/24 and MAC Address 1-1-1 of VM 1 indicates that VM 1 has moved.
After step 11, VTEP 2 receive the second notice response message that expression VM 1 has moved by the tunnel VXLAN 1,
It deletes outgoing interface and is the forwarding-table item in the tunnel VXLAN 1, and table 4 is updated to table 6.
Table 6
| IP address | MAC Address | Outgoing interface |
| 10.1.1.2/24 | 1-1-1 | Interface 2 |
Step 12, VTEP 2 send advertising of route message to VTEP 3 by the tunnel VXLAN 3.
Step 13, VTEP 3 pass through IP address 10.1.1.2/ after receiving advertising of route message by the tunnel VXLAN 3
24 and MAC Address 1-1-1 inquires forwarding table, obtains matched forwarding-table item, i.e. table 3, and the outgoing interface of forwarding-table item record is
The tunnel VXLAN 2, VTEP 3 update forwarding-table item record using the receiving interface (i.e. the tunnel VXLAN 3) of advertising of route message
Table 3 is updated to table 7 by outgoing interface.
Table 7
| IP address | MAC Address | Outgoing interface |
| 10.1.1.2/24 | 1-1-1 | The tunnel VXLAN 3 |
So far it is successfully updated the forwarding-table item of VTEP 1, VTEP 2, VTEP 3, the forwarding-table item of VTEP 1 is as shown in table 5,
The forwarding-table item of VTEP 2 is as shown in table 6, and the forwarding-table item of VTEP 3 is as shown in table 7.
Another virtual machine migration method proposed in the embodiment of the present disclosure may include steps of:
Step 21- step 28, similar with step 1- step 8, it is no longer repeated herein.
Step 29 assumes that VM 1 does not move to server 2 from server 1, then VTEP 1 can connect within a preset time
Arp reply message is received, therefore, VTEP 1 keeps forwarding-table item shown in table 1 constant.
Step 30, VTEP 1 send the first notice response message by the tunnel VXLAN 1, and the first notice response message carries
The IP address 10.1.1.2/24 and MAC Address 1-1-1 of VM 1 indicates that VM 1 is not migrated.
After step 31, VTEP 2 receive the first notice response message that expression VM 1 is not migrated by the tunnel VXLAN 1,
It deletes outgoing interface and is the forwarding-table item of interface 2, and table 4 is updated to table 8.
Table 8
| IP address | MAC Address | Outgoing interface |
| 10.1.1.2/24 | 1-1-1 | The tunnel VXLAN 1 |
In one example, VTEP 2 no longer sends advertising of route message to VTEP 3 by the tunnel VXLAN 3, that is,
It says, the forwarding-table item on VTEP 3 remains unchanged, still as shown in table 3.
In another example, in step 26, VTEP 2 can also be sent to VTEP 3 by the tunnel VXLAN 3 and be routed
Notice message.VTEP 3 after receiving advertising of route message by the tunnel VXLAN 3, by IP address 10.1.1.2/24 and
MAC Address 1-1-1 inquires forwarding table, obtains matched forwarding-table item, i.e. table 3, the outgoing interface of forwarding-table item record is VXLAN
Tunnel 2, VTEP 3 update connecing out for forwarding-table item record using the receiving interface (i.e. the tunnel VXLAN 3) of advertising of route message
Mouthful, table 3 is updated to table 7.In the case, after step 31, the virtual machine migration method can with the following steps are included:
Step 32, VTEP 2 send route withdraw message to VTEP 3 by the tunnel VXLAN 3, carry the IP address of VM 1
10.1.1.2/24 with MAC Address 1-1-1, and route withdraw message is for cancelling routing.
After receiving route withdraw message by the tunnel VXLAN 3, inquiry is local to whether there is IP by step 33, VTEP 3
Address is 10.1.1.2/24, MAC Address 1-1-1, and outgoing interface is the forwarding-table item in the tunnel VXLAN 3, due to existing, such as table
Shown in 7, therefore, the operation of revocation routing is executed according to route withdraw message, i.e. deletion IP address 10.1.1.2/24, MAC Address
The corresponding relationship in the tunnel 1-1-1, VXLAN 3.Then, VTEP 3 can be relearned no longer comprising the forwarding-table item for VM 1
The forwarding-table item of VM 1, if transmission purpose IP address is 10.1.1.2/24, the ARP request message that target MAC (Media Access Control) address is 1-1-1,
This learning process is repeated no more, the forwarding-table item for the VM 1 that VTEP 3 is safeguarded is as shown in table 3.
So far it is successfully updated the forwarding-table item of VTEP 1, VTEP 2, VTEP 3, the forwarding-table item of VTEP 1 is as shown in table 1,
The forwarding-table item of VTEP 2 is as shown in table 8, and the forwarding-table item of VTEP 3 is as shown in table 3.
Based on design is similarly disclosed with the above method, the embodiment of the present disclosure also provides a kind of virtual machine (vm) migration device, should
Virtual machine (vm) migration device can be applied in the first equipment.Wherein, which can be by software realization, can also be with
It is realized by way of hardware or software and hardware combining.It taking software implementation as an example, is logical as the device on a logical meaning
The processor of the first equipment where it is crossed, corresponding computer program instructions are formed in reading non-volatile storage.From
For hardware view, as shown in figure 3, a kind of hardware structure diagram of the first equipment where the virtual machine (vm) migration device, in addition to
Outside processor shown in Fig. 3, nonvolatile memory, the first equipment can also include other hardware, as being responsible for handling message
Forwarding chip, network interface, memory etc.；From hardware configuration, the first equipment is also possible to be distributed apparatus, may include
Multiple interface cards, to carry out the extension of Message processing in hardware view.
As shown in figure 4, being the structure chart of virtual machine (vm) migration device, described device includes:
Receiving module 11, for receiving the advertising of route message of the second equipment transmission；
Module 12 is obtained, for parsing the corresponding address letter of migration attribute, virtual machine from the advertising of route message
Breath, wherein the migration attribute indicates that the virtual machine migrates；
Sending module 13, for inquiring forwarding table by the address information, if obtaining matched with the address information
Forwarding-table item then sends the ARP request message for being directed to the virtual machine by the outgoing interface that the forwarding-table item records；
Update module 14, for when receiving the arp reply message for the ARP request message, then refusing basis
Forwarding-table item described in the advertising of route information updating.
The update module 14 is also used to when being not received by the arp reply message for the ARP request message,
The outgoing interface of the forwarding-table item record is then updated using the receiving interface for receiving the advertising of route message；Wherein, described
Tunnel face of the receiving interface between first equipment and second equipment.
In one example, the sending module 13 is also used to answer when receiving the ARP for the ARP request message
When answering message, then the first notice response message is sent to second equipment, the first notice response message is for indicating institute
Virtual machine is stated not migrate；Alternatively, when being not received by the arp reply message for the ARP request message, then to described the
Two equipment send the second notice response message, and the second notice response message is for indicating that the virtual machine is had moved.
Based on design is similarly disclosed with the above method, the embodiment of the present disclosure also provides a kind of virtual machine (vm) migration device, should
Virtual machine (vm) migration device can be applied in the second equipment.Wherein, which can be by software realization, can also be with
It is realized by way of hardware or software and hardware combining.It taking software implementation as an example, is logical as the device on a logical meaning
The processor of the second equipment where it is crossed, corresponding computer program instructions are formed in reading non-volatile storage.From
For hardware view, as shown in figure 5, a kind of hardware structure diagram of the second equipment where the virtual machine (vm) migration device, in addition to
Outside processor shown in fig. 5, nonvolatile memory, the second equipment can also include other hardware, as being responsible for handling message
Forwarding chip, network interface, memory etc.；From hardware configuration, the second equipment is also possible to be distributed apparatus, may include
Multiple interface cards, to carry out the extension of Message processing in hardware view.
As shown in fig. 6, being the structure chart of virtual machine (vm) migration device, described device includes:
Processing module 21, for when receiving the ARP message for carrying out self virtualizing machine, if had existed in forwarding table with it is described
Matched first forwarding-table item of virtual machine, addition and matched second forwarding-table item of the virtual machine in the forwarding table；The
The outgoing interface of one forwarding-table item record is the tunnel face between the second equipment and the first equipment, and the second forwarding-table item record goes out to connect
Mouth is interface corresponding with virtual machine in the second equipment；
Sending module 22, for the outgoing interface according to first forwarding-table item, it is logical that the first equipment of Xiang Suoshu sends routing
Accuse message, wherein the advertising of route message carries the address information of migration attribute and the virtual machine, the migration attribute list
Show that the virtual machine migrates；So that first equipment determines whether the virtual machine moves according to the advertising of route message
It moves.
The processing module 21 is also used to when receiving the first notice response message that first equipment is sent, really
The fixed virtual machine does not migrate, and deletes second forwarding-table item, and the first notice response message is for indicating the void
Quasi- machine does not migrate；When receiving the second notice response message that first equipment is sent, determine that the virtual machine is had moved,
First forwarding-table item is deleted, the second notice response message is for indicating that the virtual machine is had moved.
The sending module 22 is also used to after receiving the second notice response message that first equipment is sent, to
Third equipment sends advertising of route message, and the advertising of route message carries the address information of migration attribute and the virtual machine,
The migration attribute indicates that the virtual machine migrates；So that third equipment will be with the matched forwarding-table item of the address information
Outgoing interface be updated to receive the receiving interface of the advertising of route message.
The sending module 22 is also used to receiving the first notice response message that first equipment is sent or the
Before two notice response messages, send advertising of route message to third equipment, the advertising of route message carry migration attribute and
The address information of the virtual machine, the migration attribute indicate that the virtual machine migrates；So that the third equipment will be with
The outgoing interface of the matched forwarding-table item of address information is updated to receive the receiving interface of the advertising of route message；
After receiving the first notice response message that first equipment is sent, then needle is sent to the third equipment
To the route withdraw message of the advertising of route message, the route withdraw message carries the address information of the virtual machine, with
Make the third device revocation and the matched forwarding-table item of the address information.
System, device, module or the unit that above-described embodiment illustrates can specifically realize by computer chip or entity,
Or it is realized by the product with certain function.A kind of typically to realize that equipment is computer, the concrete form of computer can
To be personal computer, laptop computer, cellular phone, camera phone, smart phone, personal digital assistant, media play
In device, navigation equipment, E-mail receiver/send equipment, game console, tablet computer, wearable device or these equipment
The combination of any several equipment.
For convenience of description, it is divided into various units when description apparatus above with function to describe respectively.Certainly, implementing this
The function of each unit can be realized in the same or multiple software and or hardware when open.
It should be understood by those skilled in the art that, embodiment of the disclosure can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the disclosure
Apply the form of example.Moreover, it wherein includes computer usable program code that the embodiment of the present disclosure, which can be used in one or more,
The computer implemented in computer-usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.)
The form of program product.
The disclosure is referring to method, the process of equipment (system) and computer program product according to the embodiment of the present disclosure
Figure and/or block diagram describe.It is generally understood that being realized by computer program instructions each in flowchart and/or the block diagram
The combination of process and/or box in process and/or box and flowchart and/or the block diagram.It can provide these computer journeys
Sequence instruct to general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices processor with
A machine is generated, so that the instruction generation executed by computer or the processor of other programmable data processing devices is used for
Realize the dress for the function of specifying in one or more flows of the flowchart and/or one or more blocks of the block diagram
It sets.
Moreover, these computer program instructions also can store be able to guide computer or other programmable datas processing set
In standby computer-readable memory operate in a specific manner, so that instruction stored in the computer readable memory generates
Manufacture including command device, the command device are realized in one process of flow chart or multiple processes and/or block diagram one
The function of being specified in a box or multiple boxes.
These computer program instructions can also be loaded into computer or other programmable data processing devices, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer
Or the instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram
The step of function of being specified in one box or multiple boxes.
It will be understood by those skilled in the art that embodiment of the disclosure can provide as method, system or computer program product.
Therefore, the disclosure can use complete hardware embodiment, complete software embodiment or implementation combining software and hardware aspects
The form of example.Moreover, it wherein includes the calculating of computer usable program code that the disclosure, which can be used at one or more,
The computer implemented in machine usable storage medium (can include but is not limited to magnetic disk storage, CD-ROM, optical memory etc.)
The form of program product.
The foregoing is merely embodiment of the disclosure, are not limited to the disclosure.For those skilled in the art
For, the disclosure can have various modifications and variations.All any modifications made within the spirit and principle of the disclosure are equal
Replacement, improvement etc., should be included within the scope of the claims of the disclosure.
Claims (14)
1. a kind of virtual machine migration method is applied to the first equipment, which is characterized in that this method comprises:
The advertising of route message of the second equipment transmission is received, and parses from the advertising of route message migration attribute, virtual
The corresponding address information of machine, the migration attribute indicate that the virtual machine has occurred and that migration；
Inquire forwarding table by the address information, if obtain with the matched forwarding-table item of the address information, by described
The outgoing interface of forwarding-table item record sends the ARP request message for being directed to the virtual machine；
If receiving the arp reply message for the ARP request message, refuse according to the advertising of route information updating institute
State forwarding-table item.
2. the method according to claim 1, wherein the outgoing interface recorded by the forwarding-table item is sent
After the ARP request message of the virtual machine, the method also includes:
If being not received by the arp reply message for the ARP request message, using receiving the advertising of route message
Receiving interface update the outgoing interface of forwarding-table item record；
Wherein, tunnel face of the receiving interface between first equipment and second equipment.
3. according to the method described in claim 2, it is characterized in that, the method also includes:
If receiving the arp reply message for the ARP request message, the first notice response is sent to second equipment
Message, the first notice response message is for indicating that the virtual machine does not migrate；Alternatively,
If being not received by the arp reply message for the ARP request message, the second notice is sent to second equipment
Response message, the second notice response message is for indicating that the virtual machine is had moved.
4. a kind of virtual machine migration method is applied to the second equipment, which is characterized in that this method comprises:
When receiving the ARP message for carrying out self virtualizing machine, if having existed with the virtual machine matched first turn in forwarding table
Forwarding list item then adds and matched second forwarding-table item of the virtual machine in the forwarding table；Wherein, first forwarding table
The outgoing interface of item record is the tunnel face between second equipment and the first equipment, and the second forwarding-table item record goes out to connect
Mouth is interface corresponding with virtual machine in second equipment；
According to the outgoing interface of first forwarding-table item, advertising of route message, the advertising of route message are sent to the first equipment
The address information of migration attribute and the virtual machine is carried, the migration attribute indicates that the virtual machine has occurred and that migration；With
The first equipment is set to determine whether the virtual machine migrates according to the advertising of route message.
5. according to the method described in claim 4, it is characterized in that, the outgoing interface according to first forwarding-table item, to
After first equipment sends advertising of route message, the method also includes:
If receiving the first notice response message that first equipment is sent, determine that the virtual machine does not migrate, described in deletion
Second forwarding-table item, the first notice response message is for indicating that the virtual machine does not migrate；
If receiving the second notice response message that first equipment is sent, determine that the virtual machine is had moved, described in deletion
First forwarding-table item, the second notice response message is for indicating that the virtual machine is had moved.
6. according to the method described in claim 5, it is characterized in that, the method also includes:
After receiving the second notice response message that first equipment is sent, advertising of route is sent to third equipment and is disappeared
Breath, the advertising of route message carry the address information of migration attribute and the virtual machine, and the migration attribute indicates the void
Quasi- machine migrates；So that the third equipment will be updated to receive with the outgoing interface of the matched forwarding-table item of the address information
To the receiving interface of the advertising of route message.
7. according to the method described in claim 5, it is characterized in that, the method also includes:
Before receiving the first notice response message or the second notice response message that first equipment is sent, to third
Equipment sends advertising of route message, and the advertising of route message carries the address information of migration attribute and the virtual machine, described
Migration attribute indicates that the virtual machine migrates；So that third equipment by with the matched forwarding-table item of the address information go out
Interface is updated to receive the receiving interface of the advertising of route message；
If receiving the first notice response message that first equipment is sent, is sent to the third equipment and be directed to the road
By the route withdraw message of notice message, the route withdraw message carries the address information of the virtual machine, so that described
Three device revocations and the matched forwarding-table item of the address information.
8. a kind of virtual machine (vm) migration device, it is applied to the first equipment, which is characterized in that the device includes:
Receiving module, for receiving the advertising of route message of the second equipment transmission；
Module is obtained, for parsing migration attribute, the corresponding address information of virtual machine from the advertising of route message,
In, the migration attribute indicates that the virtual machine has occurred and that migration；
Sending module, for inquiring forwarding table by the address information, if obtaining and the matched forwarding table of the address information
, then the ARP request message for being directed to the virtual machine is sent by the outgoing interface that the forwarding-table item records；
Update module, for when receiving the arp reply message for the ARP request message, then refusal to be according to the road
The forwarding-table item is updated by notice message.
9. device according to claim 8, which is characterized in that
The update module is also used to then utilize when being not received by the arp reply message for the ARP request message
The receiving interface for receiving the advertising of route message updates the outgoing interface of the forwarding-table item record；Wherein, described to connect
Tunnel face of the mouth between first equipment and second equipment.
10. device according to claim 9, which is characterized in that the sending module is also used to receive for described
When the arp reply message of ARP request message, then the first notice response message, first notice are sent to second equipment
Response message is for indicating that the virtual machine does not migrate；Alternatively, being answered when being not received by the ARP for the ARP request message
When answering message, then the second notice response message is sent to second equipment, the second notice response message is for indicating institute
Virtual machine is stated to have moved.
11. a kind of virtual machine (vm) migration device is applied to the second equipment characterized by comprising
Processing module, for when receiving the ARP message for carrying out self virtualizing machine, if being had existed in forwarding table and the virtual machine
Matched first forwarding-table item, addition and matched second forwarding-table item of the virtual machine in the forwarding table；Described first
The outgoing interface of forwarding-table item record is the tunnel face between the second equipment and the first equipment, and the second forwarding-table item record goes out
Interface is interface corresponding with virtual machine in the second equipment；
Sending module, for the outgoing interface according to first forwarding-table item, the first equipment of Xiang Suoshu sends advertising of route message,
Wherein, the advertising of route message carries the address information of migration attribute and the virtual machine, described in the migration attribute indicates
Virtual machine has occurred and that migration；So that first equipment determines whether the virtual machine moves according to the advertising of route message
It moves.
12. device according to claim 11, which is characterized in that the processing module is also used to when receiving described the
When the first notice response message that one equipment is sent, determine that the virtual machine does not migrate, and delete second forwarding-table item, institute
The first notice response message is stated for indicating that the virtual machine does not migrate；When the second notice for receiving the first equipment transmission
It when response message, determines that the virtual machine is had moved, deletes first forwarding-table item, the second notice response message is used for
Indicate that the virtual machine is had moved.
13. device according to claim 12, which is characterized in that the sending module is also used to receiving described
After the second notice response message that one equipment is sent, advertising of route message, the advertising of route message are sent to third equipment
The address information of migration attribute and the virtual machine is carried, the migration attribute indicates that the virtual machine migrates；So that institute
Stating third equipment will be updated to receive the advertising of route message with the outgoing interface of the matched forwarding-table item of the address information
Receiving interface.
14. device according to claim 12, which is characterized in that
The sending module is also used to receiving the first notice response message or the second notice that first equipment is sent
Before response message, advertising of route message is sent to third equipment, the advertising of route message carries migration attribute and the void
The address information of quasi- machine, the migration attribute indicate that the virtual machine migrates；So that the third equipment will with described
The outgoing interface of the forwarding-table item of location information matches is updated to receive the receiving interface of the advertising of route message；
After receiving the first notice response message that first equipment is sent, is then sent to the third equipment and be directed to institute
The route withdraw message of advertising of route message is stated, the route withdraw message carries the address information of the virtual machine, so that institute
State third device revocation and the matched forwarding-table item of the address information.
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| CN107612834A (en) * | 2017-09-13 | 2018-01-19 | 杭州迪普科技股份有限公司 | A kind of EVPN route renewing methods based on virtual unit migration |
| CN108418740B (en) * | 2018-02-28 | 2020-09-08 | 新华三技术有限公司 | Message processing method and device |
| CN108540386B (en) * | 2018-04-19 | 2021-07-23 | 新华三技术有限公司 | Method and device for preventing service flow interruption |
| CN109189549A (en) * | 2018-08-01 | 2019-01-11 | 新华三技术有限公司 | Virtual machine migration method and device |
| CN109032763B (en) * | 2018-08-14 | 2021-07-06 | 新华三云计算技术有限公司 | Virtual machine migration method and virtual machine manager |
| CN109067784B (en) * | 2018-09-19 | 2021-06-08 | 迈普通信技术股份有限公司 | Method and equipment for preventing cheating in VXLAN |
| WO2021168818A1 (en) * | 2020-02-28 | 2021-09-02 | 新华三技术有限公司 | Method and apparatus for route update |
| CN111736958B (en) * | 2020-06-29 | 2023-06-30 | 中国联合网络通信集团有限公司 | Virtual machine migration method, system, computer equipment and storage medium |
| CN111884904B (en) * | 2020-07-23 | 2021-09-24 | 中盈优创资讯科技有限公司 | Method and device for dynamically managing vxlan tunnel based on equipment configuration |
| CN112039737B (en) * | 2020-08-26 | 2021-07-20 | 珠海格力电器股份有限公司 | Equipment network distribution method, equipment control method, terminal equipment and equipment control system |
| CN113612782B (en) * | 2021-08-06 | 2023-02-17 | 中国联合网络通信集团有限公司 | Virtual machine migration verification method and device |
| CN113938354A (en) * | 2021-10-12 | 2022-01-14 | 中国联合网络通信集团有限公司 | Routing information updating method and device, electronic equipment and computer readable medium |
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