CN102315968A - Network configuration method in virtual machine environment - Google Patents
Network configuration method in virtual machine environment Download PDFInfo
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Abstract
The invention provides a network configuration method in virtual machine environment, which comprises the follow steps that: a virtual machine is started and sends broadcast messages to a network; the service end of a physical machine analyzes the broadcast messages and judges whether the broadcast messages are from the corresponding virtual machine or not; when the broadcast messages are from the corresponding virtual machine, the service end of the physical machine responds to the broadcast messages; the service end of the physical machine inquires a network resource pool, the network resource allocation is executed according to preset strategies, and the allocation results are returned; when the allocation results show that the resource allocation is successful, the service end of the physical machine generates network configuration parameters according to the allocation results; the service end of the physical machine sends the network configuration parameters to the virtual machine in the message broadcasting mode; the virtual machine configures the network according to the network configuration parameters; and the service end of the physical machine updates the state information of the network resource pool. The network configuration method has the advantages that the network of the virtual machine can be effectively configured, the network overhead is reduced, and simultaneously, good transparency and expandability are also realized.
Description
Technical field
The present invention relates to the virtual machine technique field, more particularly, the present invention relates to the network collocating method under a kind of virtual machine environment.
Background technology
DHCP (Dynamic Host Configuration Protocol is called for short DHCP) is widely used in the managing physical LAN.Yet; Under the situation of not considering the virtual machine network characteristic; Stiff being applied in the virtualized environment of DHCP service; Can cause that service end efficient is low, offered load heavily waits shortcoming, the network management of multi-dummy machine is caused inconvenience, do not meet multi-dummy machine to resource high-efficiency, dynamically, the requirement of transparent management.
Summary of the invention
In view of this; The object of the present invention is to provide the network collocating method under a kind of virtual machine environment, realize the initialization and the dynamic auto configuration of multi-dummy machine network, this method is the configuring virtual machine network efficiently; Reduce network overhead, also have the good transparency and extensibility simultaneously.
Network collocating method under the virtualized environment may further comprise the steps:
Virtual machine activation sends broadcast to network;
The service end of physical machine is resolved broadcast, and judges that whether broadcast is from its corresponding virtual machine;
If broadcast is from its corresponding virtual machine, then the service end of physical machine responds broadcast;
The service end requester network resource pool of physical machine is carried out Resource Allocation in Networks according to predetermined strategy, and is returned allocation result;
If allocation result shows the resource allocation success, then the service end of physical machine generates network configuration parameters according to allocation result;
The service end of physical machine sends to virtual machine with network configuration parameters with the mode of broadcast;
Virtual machine is according to the network configuration parameters configuration network;
The service end of physical machine is upgraded the state information in Internet resources pond.
Method of the present invention further comprises: if broadcast is not from its corresponding virtual machine, then abandon broadcast.
Method of the present invention further comprises: unsuccessful if allocation result shows resource allocation, then return no available network resource information.
Broadcast comprise be used to indicate broadcast message come self virtualizing machine still be from the command identification bit field of physical machine, be used to indicate the virtual hardware information of virtual machine the media interviews control field, be used to identify the general unique identifier field of virtual machine and the network configuration information field that is used to preserve network configuration parameters.
The service end requester network resource pool of physical machine is carried out Resource Allocation in Networks according to predetermined strategy, and the step of returning allocation result further comprises:
Read the network settings of the service end of physical machine, to obtain the network segment information of physical machine;
The service end of physical machine mails to the Internet resources pond with network segment information, with the idle IP in the network segment scope in the inquiry network segment information, and returns Query Result;
If Query Result be empty, the quantity of the IP that then in the Internet resources pond, has been used in each network segment of statistics confirming the having maximum IP that have been used and the network segment that idle IP is arranged, and is returned network segment information;
The service end of physical machine mails to the Internet resources pond with network segment information, with the idle IP in the network segment scope in the inquiry network segment information, and returns Query Result;
If Query Result is empty, then return no available network resource information.
The service end requester network resource pool of physical machine is carried out Resource Allocation in Networks according to predetermined strategy, and the step of returning allocation result further comprises: if Query Result for empty, then takes out IP information from Query Result, it is returned as allocation result.
Compared with prior art, the present invention has the following advantages:
(1) high efficiency: the present invention adopts the network service structure of optimization, has simplified the processing procedure of network configuration, effectively reduces virtual machine network initialization and time of layoutprocedure as required, has improved the efficient of virtual machine network configuration.
(2) low expense: virtual machine network of the present invention basis traffic model uses the data communication format of simplifying, and has avoided the transmission of mass of redundancy data, thereby has reduced the Internet resources expense.
(3) transparency: the present invention is based on Resource Allocation in Networks strategy Dynamic Maintenance Internet resources pond as required, initialization of virtual machine automatic network and configuration are provided, the virtual machine user does not need manual operation to come configuration network, and whole process is transparent to the user.
(4) extensibility: the virtual machine network of the present invention through moving on each physical server of physical network end management, realized the local configuration management of virtual machine network, strengthened the extensibility of virtual machine network configuration-system.
Description of drawings
Fig. 1 is the flow chart of the network collocating method under the virtualized environment of the present invention.
Fig. 2 is the form sketch map of broadcast between the service end of virtual machine and physical machine.
Fig. 3 is the refinement flow chart of step of the present invention (4).
Fig. 4 is the systemic-function sketch map of the network collocating method under the virtualized environment of the present invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is done further detailed explanation.
As shown in Figure 1, network collocating method of the present invention may further comprise the steps:
(1) virtual machine activation sends broadcast to network;
(2) service end of physical machine is resolved broadcast, and judges that whether broadcast is from its corresponding virtual machine; If broadcast is from its corresponding virtual machine, then changes step (3) over to, otherwise abandon this broadcast;
(3) service end of physical machine response broadcast;
(4) the service end requester network resource pool of physical machine is carried out Resource Allocation in Networks according to predetermined strategy, and is returned allocation result;
(5) if allocation result shows the resource allocation success, then change step (6) over to; If it is unsuccessful that allocation result shows resource allocation, then return no available network resource information;
(6) service end of physical machine generates network configuration parameters according to allocation result;
(7) service end of physical machine sends to virtual machine with network configuration parameters with the mode of broadcast;
(8) virtual machine is according to the network configuration parameters configuration network;
(9) service end of physical machine is upgraded the state information in Internet resources pond.
With reference to figure 2, mutual broadcast message between the service end of virtual machine and physical machine comprises following field:
1. command identification position (2):
The front two of gauge outfit is the instruction identification code, and the service end of virtual machine and physical machine is exactly to judge the nature and function of message through the value of identification code.If the value of identification code is " is ", its these data of expression is virtual machine network is issued network at initial phase broadcast messages; If the value of identification code is " rt ", its these data of expression is to be issued the affirmation information of virtual machine by the service end of physical machine; If the value of identification code is " st ", it representes that this is a network configuration parameters of being issued virtual machine by the service end of physical machine.
2. media interviews control (Media Access Control is called for short MAC) address (17):
The network MAC address of its expression virtual machine was inserted in the virtual machine activation stage.Peculiar field when the Mac field is initialization; What insert in the field is the virtual hardware information of virtual machine; MAC field in the other types message will be by zero clearing, and with general unique identifier (Universally UniqueIdentifier is called for short UUID) field as unique indications.
(3.UUID 36):
The overall situation coding that each virtual machine generates when creating can this virtual machine of unique identification.
4. network configuration information (indefinite figure place):
It is used to preserve the network configuration parameters of distributing to virtual machine, comprises IP address, gateway, domain name system data such as (Domain Name System are called for short DNS).
In step (1), when virtual machine activation, can the command identification bit field of broadcast be made as " is ", and the MAC Address of this machine of inquiry, it is inserted the MAC field, then this broadcast is sent in network.After message is sent; If client is not received the message that service end is returned in the time of setting, can get into timeout mode automatically, and behind the certain hour of interval, resend network configuration request; If request is unsuccessful in the number of times of regulation, then return error message.
In step (2), the service end of physical machine judges at first whether the command identification position of broadcast is " is ", then reads the MAC Address of back in this way; The virtual machine tabulation that moves on this machine of contrast inquiry has the virtual machine that matees MAC Address if find, and then takes out the UUID of this virtual machine registration; As request confirmation of receipt information; The command identification position is set is " rt ", reply to this virtual machine, simultaneously to Internet resources pond log on resource.
In step (4), Resource Allocation in Networks adopts physical machine priority allocation and local area network (LAN) maximization to distribute the strategy that combines, and its specific operation process is as shown in Figure 3, comprises following substep:
(41) read the network settings of the service end of physical machine, to obtain the network segment information of physical machine;
(42) service end of physical machine mails to the Internet resources pond with network segment information, with the idle IP in the network segment scope in the inquiry network segment information, and returns Query Result;
(43) if Query Result is empty; The quantity of the IP that then statistics has been used in each network segment in the Internet resources pond confirming the having IP that have been used at most and the network segment that idle IP is arranged, and is returned network segment information; Get into step (44) then; If Query Result is not empty, then from Query Result, take out IP information, it is returned as allocation result;
(44) service end of physical machine mails to the Internet resources pond with network segment information; With the idle IP in the network segment scope in the inquiry network segment information, and return Query Result, if Query Result is not empty; Then from Query Result, take out IP information; It is returned as allocation result,, then return no available network resource information if Query Result is empty.
Physical machine priority allocation strategy is automatically assigned to virtual machine and host's physical machine same network segment mutually; Physical machine and guest virtual machine are become form web frame in the local area network (LAN); Can reduce the routing addressing that brings because of in different segment communication, improve the communication efficiency of virtual machine and physical machine.When physical machine network segment IP of living in inadequate resource; According to local area network (LAN) maximization allocation strategy; Be assigned to virtual machine in the maximum LAN segment of existing virtual machine quantity, can carry out network service efficiently with maximum virtual machine in the existing network to guarantee initiate virtual machine.
In step (6); The service end of physical machine is inserted the UUID of the virtual machine of request resource the UUID field of broadcast; And IP information and the corresponding gateway and the DNS resource of distributing according to the Internet resources pond; Generate an available network resources bag, insert the network configuration information field of broadcast.
In step (7), the command identification position of the broadcast that the service end of physical machine generates is set to " st ", then this broadcast is sent to network with broadcast mode.
In step (8), when virtual machine listens to the command identification position of sending for the message of " st ", check whether its UUID field contents is consistent with the UUID of oneself, if then read network configuration parameters, the virtual network of oneself is set according to data designated; If difference is packet discard then, proceed to monitor.
In step (9), after the Internet resources pond received the message of virtual machine configuration successful, the Internet resources of this virtual machine were set to user mode, and upgraded the IP use number of the corresponding network segment.
Example
Making up the virtual machine network automatic configuration system with an IBM High-Performance Computing Cluster is example, and the IBM HPCC comprises 1 FEP, 2 I/O nodes and 39 computing nodes, and its concrete configuration is as shown in table 1.The cluster internal lan is the 1000M Ethernet, and external lan is the 100M Ethernet.Concrete test environment configuration information is please with reference to shown in the following table 1:
Table 1 test environment configuration information
During this method practical implementation, adopting comparatively independently, double-layer structure comes the virtual machine constructor automatic network provisioning system.The network service layer is the core of whole system, is responsible for making up and managing the specific tasks of whole virtual network; The logic control layer is the control and the data center of whole system, be responsible for control flows normal operation, data correctly deposit the effective processing with system mistake.
As shown in Figure 4, the Internet resources pond and the logic control relatives of Taiwan compatriots living on the Mainland operate on its FEP of cluster in the logic control layer.The logic control platform is responsible for the distribution and the management of control information, and carries out exchanges data with the Internet resources pond as required, realizes the normal operation of control flows and correctly depositing of network data.Physical network end and virtual network end belong to the network service layer, and they operate in respectively on cluster computing node and the virtual machine, and the effective information between them is determining the proper communication of virtual machine network alternately.
After a virtual machine activation is accomplished; Need be configured network; It sends network resource request through inner basic communication module to the physical machine at place, and the logic control platform is after the request of receiving, the application resource allocation strategy takes out corresponding data from the Internet resources pond; The physical network end of data through physical machine sent to the virtual network end in the virtual machine, dispose accordingly.If configuration successful, control desk will upgrade the data in the Internet resources pond, to guarantee the consistency of real time data; If unsuccessful, then the certain hour later on automatic initialized all operations of recurrent network in interval if it is still unsuccessful to repeat several, then is judged to be the virtual machine network initialization and fails.So just accomplish once simple network configuration communication.
On No. 8 cluster computing nodes, start a virtual machine V, after it starts completion, begin network is configured.The virtual network end generates the communication information like table 2, the command identification position is set is " is ", inserts the network Mac address of virtual machine V, and other fields are empty, send through Broadcast Port.
| The command identification position | The Mac address | UUID | Network configuration information |
| is | 00:16:3e:00:00:11 | (sky) | (sky) |
The broadcast that table 2 virtual machine sends
The physical network end of No. 8 cluster computing nodes receives broadcast through listening port, is " is " through the decision instruction flag, reads MAC Address, in the virtual machine tabulation of this machine, inquires about, and finds the MAC Address of coupling, reads the UUID of this virtual machine.Generate the communication information of Requisition Validation then, as shown in table 2, send to network through broadcast mode.Simultaneously, the GetResource function of the logic control platform of far call cluster front end node.
The request confirmation that table 3 physical machine is sent
After the network terminal of virtual machine V receives the broadcast that No. 8 computing nodes send from listening port; Be judged as the affirmation information that the physical network end is replied through the command identification position; The inspection MAC Address is the MAC Address of virtual machine V, reads the UUID field, is recorded as the UUID of this virtual machine V.
The logic control platform is carried out resource allocator.Query messages source at first, i.e. the IP of No. 8 computing nodes, the intercepting network segment is " 192.168.100.0 ", the requester network resource pool is chosen an IP available " 192.168.100.102 " from the idle IP result set of this network segment.Then, obtain the network of relation resource, comprise gateway, DNS etc., generate the network configuration parameters bag, return to the cluster computing node No. 8 according to this IP.
After the physical network end obtains the network parameter that returns, generate a broadcast message, as shown in table 4.The command identification position of this broadcast is set to " st ", and the MAC Address field is cleared, and the UUID field extends this as the UUID of target virtual machine V, and the parameter filling of network configuration is advanced the network configuration information field of broadcast message.This broadcast also is to send with broadcast mode.
The broadcast message that table 4 physical machine is sent
After the network terminal of virtual machine V receives this broadcast from listening port; At first confirm as network configuration message according to the command identification position; Check UUID then; Therefore find consistently, read the network configuration information field of back, parse configuration parameter such as IP address and carry out network settings with the UUID of oneself.After network settings are accomplished, promptly send the network configuration success message to No. 8 computing nodes.
After No. 8 computing nodes received the configuration successful message that virtual machine V returns, the SetIPPool function of calling logic control desk was " using " with the status modifier of the IP address " 192.168.100.102 " of resource pool lane database.
So far, the automatic configuration effort of the network of virtual machine V is accomplished.
Claims (6)
1. the network collocating method under the virtualized environment may further comprise the steps:
Virtual machine activation sends broadcast to network;
The service end of physical machine is resolved said broadcast, and judges that whether said broadcast is from its corresponding virtual machine;
If said broadcast is that then the service end of said physical machine responds said broadcast from its corresponding virtual machine;
The service end requester network resource pool of said physical machine is carried out Resource Allocation in Networks according to predetermined strategy, and is returned allocation result;
If said allocation result shows the resource allocation success, then the service end of said physical machine generates network configuration parameters according to said allocation result;
The service end of said physical machine sends to said virtual machine with said network configuration parameters with the mode of broadcast;
Said virtual machine is according to said network configuration parameters configuration network;
The service end of said physical machine is upgraded the state information in said Internet resources pond.
2. network collocating method according to claim 1 is characterized in that, if said broadcast is not from its corresponding virtual machine, then abandons said broadcast.
3. network collocating method according to claim 1 is characterized in that, and is unsuccessful if said allocation result shows resource allocation, then returns no available network resource information.
4. method according to claim 1 is characterized in that: said broadcast comprise be used to indicate said broadcast message be from said virtual machine or from the command identification bit field of said physical machine, be used to indicate the virtual hardware information of said virtual machine the media interviews control field, be used to identify the general unique identifier field of said virtual machine and the network configuration information field that is used to preserve said network configuration parameters.
5. method according to claim 1 is characterized in that: the service end requester network resource pool of said physical machine carry out Resource Allocation in Networks according to predetermined strategy, and the step of returning allocation result comprises:
Read the network settings of the service end of said physical machine, to obtain the network segment information of said physical machine;
The service end of said physical machine mails to said Internet resources pond with said network segment information, inquiring about the idle IP in the network segment scope in the said network segment information, and returns Query Result;
If said Query Result be empty, the quantity of the IP that then in said Internet resources pond, has been used in each network segment of statistics confirming the having maximum IP that have been used and the network segment that idle IP is arranged, and is returned network segment information;
The service end of said physical machine mails to said Internet resources pond with said network segment information, inquiring about the idle IP in the network segment scope in the said network segment information, and returns Query Result;
If said Query Result is empty, then return no available network resource information.
6. method according to claim 5; It is characterized in that; The service end requester network resource pool of said physical machine is carried out Resource Allocation in Networks according to predetermined strategy, and the step of returning allocation result further comprises: if said Query Result is for empty; Then from said Query Result, take out IP information, it is returned as allocation result.
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| CN103703724A (en) * | 2013-08-15 | 2014-04-02 | 华为技术有限公司 | Resource payment method |
| CN103716416A (en) * | 2012-09-29 | 2014-04-09 | 北京搜狐互联网信息服务有限公司 | IP configuration method and apparatus under cloud computing platform |
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| CN105656795A (en) * | 2014-11-14 | 2016-06-08 | 腾讯科技（深圳）有限公司 | Flow control method of virtual machine and physical machine |
| CN104699522A (en) * | 2015-03-17 | 2015-06-10 | 成都艺辰德迅科技有限公司 | Virtual machine dynamic migration method |
| CN104699522B (en) * | 2015-03-17 | 2017-10-13 | 成都麦进斗科技有限公司 | A kind of dynamic migration of virtual machine method |
| CN105162897A (en) * | 2015-09-16 | 2015-12-16 | 浪潮集团有限公司 | System and method for allocating IP address for virtual machine and network virtual machine |
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