CN102316001B - Virtual network connection configuration realizing method and network equipment - Google Patents
Virtual network connection configuration realizing method and network equipment Download PDFInfo
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Abstract
The invention discloses a virtual network connection configuration realizing method, which comprises the steps that: a virtual network management center obtains medium access control (MAC) authentication request messages initiated by new MAC addresses detected by a self physical interface by an edge switch, wherein the new MAC addresses are generated through virtual memory (VM) shift or creation, in addition, MAC addresses carried in the message and interface messages of the edge switch are obtained, the corresponding network configuration is found in self maintenance VM and virtual switch interface (VSI) type binding information according to MAC addresses, and the found network configuration is issued to a corresponding interface of the edge switch in accordance with the interface information. Based on the same invention idea, the invention also provides network equipment which can accurately shift the network configuration in real time under the condition of simple configuration.
Description
Technical field
The present invention relates to communication technical field, particularly a kind of virtual network connection configuration realizing method and the network equipment.
Background technology
Introduce Intel Virtualization Technology in the scenes such as data center after, the position of virtual server access network is not often just fixed.The virtual machine (vm) migration (VMotion) causing such as HA, DRS, DPM etc., or the VMotion causing according to set monitoring resource strategy, virtual server (VM) may change the network site at place at any time.
When creating VM or migration vMotion, whether VM main frame can normally move, and except the resource rational management on server, the rational management that its network connects is also necessary, such as network configuration such as ACL, QoS, VLAN.In order to guarantee the business continuance of VM, except virtualization software can guarantee the fast transferring of VM on server, corresponding network connects configuration emigration and also needs to complete in real time.The data center network that realization is moving with need.
When virtual network configuration is moved, need to be for the virtual interface (vNic) of each VM, in the corresponding interface deploy of physical switches.Therefore need in real time, the migration of perception VM accurately or access switch IP and the port numbers of each the vNic access network before and after deployment event and migration.Mainly there are following two kinds of solutions in existing realization:
The first solution is: Virtual Machine Manager center (VM Manager) and virtual network administrative center (VNet Manager) are substantially completely independent, independently process separately.After there is VM establishment or vMotion, VM Manager only notifies VNet Manager, and the work that completes alone virtual network configuration migration by VNet Manager, mainly comprises the work of two aspects: fixer network on-position and configuration emigration.
The shortcoming of the first solution is to carry out location, double layer network on-position by legacy network administrative skill, calculates the time delay of introducing larger; Cannot guarantee the continuity of network configuration real-time migration and VM business; And the accuracy of positioning result is subject to compared with multifactor impact, cannot guarantee.Whether ratio if necessary management node includes webmaster in, and whether two etale topologies are complete etc., easily causes network configuration migration invalid.
The second solution is: VSI discovery and configuration protocol (VSI Discovery and Configuration Protocol, VDP) based on 802.1Qbg definition are mutual, and virtual switch interface type (VSI Type) definition, i.e. network configuration.When VM moves on new physical server, while being connected to new edge switch (edge switch) simultaneously, VM notices the information such as VSI Type ID of this VM/vNic binding to edge switch by VDP message, edge switch is used this information from network configuration corresponding to NM server active obtaining and is applied to corresponding edge switch interface.
The shortcoming of the second solution is to configure too complexity, need virtual network administrative center, virtual management software, virtualization software (hypervisor & vSwitch), edge switch to coordinate simultaneously, existing these role's products all must be revised, and support 802.1Qbg standard.To product, particularly edge switch lacks compatible.802.1Qbg is only to having carried out alternately standardization between virtual switch (vSwtich) wherein and edge switch, but to virtual management software and the mutual not definition therein of virtual network administrative center, exist privately owned realization, scheme is supporting more difficult and strict.
Therefore two kinds of solutions of existing realization all can not, in the simple situation of configuration, accurately be moved network configuration in real time.
Summary of the invention
In view of this, the invention provides a kind of virtual network connection configuration realizing method and the network equipment, in the simple situation of configuration, can move accurately and real-time network configuration.
For solving the problems of the technologies described above, technical scheme of the present invention is achieved in that
A connection configuration realizing method, the method comprises:
Obtain edge switch and new medium access control MAC addresses detected and the MAC authentication request packet of initiating at self physical interface, wherein, described new MAC Address is virtual machine VM migration or creates generation, and obtain the described MAC Address of carrying in described message and the interface message of described edge switch, according to described MAC Address, in the VM of self maintained and virtual switch interface type VSI Type binding information, search corresponding network configuration, and the network configuration finding is issued on the corresponding interface of described edge switch according to described interface message.
, can be applicable to virtual network and connect Configuration, this network equipment comprises: acquiring unit, inspection unit and transmitting element;
Described acquiring unit, for obtaining edge switch, at self physical interface, new medium access control MAC addresses detected and the MAC authentication request packet of initiating, wherein, described new MAC Address is that VM migration or create produces, and obtains the described MAC Address of carrying in described message and the interface message of described edge switch;
The described unit of searching, searches corresponding network configuration for the MAC Address obtained according to described acquiring unit at VM and the VSI Type binding information of the network equipment maintenance at self place;
Described transmitting element, for searching by described the corresponding interface that interface message that the network configuration of searching unit obtains according to described acquiring unit is issued to described edge switch.
In sum, the present invention is based on the MAC authentication feature that existing physical switches is generally supported, make virtual network administrative center obtain the authentication request that edge switch sends, and obtain the MAC Address of the virtual switch carrying in this authentication request and the interface message of edge switch, VM and network configuration relation that the information matches virtual network administrative center that use is obtained safeguards, be issued to the network configuration of VM on the corresponding interface of edge switch.In the simple situation of configuration, can move accurately and real-time network configuration.
Accompanying drawing explanation
Fig. 1 is that in the embodiment of the present invention, virtual network connects Configuration flow chart;
Fig. 2 is that in the specific embodiment of the invention, virtual network connects Configuration flow chart;
Fig. 3 is that virtual network connects Configuration network equipment structural representation.
Embodiment
For making object of the present invention, technical scheme and advantage clearer, referring to the accompanying drawing embodiment that develops simultaneously, scheme of the present invention is described in further detail.
The present invention is based on the MAC authentication feature that existing physical switches is generally supported, virtual network administrative center intercepts and captures the MAC message identifying that edge switch reports, obtain the MAC Address of VM and the interface message of edge switch, VM and the network configuration relation by the MAC Address coupling of the VM that obtains, safeguarded, be issued to the network configuration of this VM on access switch the corresponding interface.Therefore on edge switch of the present invention, all configure MAC authentication feature.
Referring to Fig. 1, Fig. 1 is that in the embodiment of the present invention, virtual network connects Configuration flow chart.Concrete steps comprise:
In this step, when VM migration occurring or create, the edge router being connected with the physical server at this VM place can detect new MAC Address at the physical interface place of self, i.e. the MAC Address of the vnic of this VM.
The VM that in this step, virtual network administrative center safeguards and VSI Type binding information are with existing realization.
In step 102, while searching corresponding network configuration according to MAC Address, proceed as follows simultaneously:
According to this MAC Address, search its historical online record, if existed, obtain the former on-position before this MAC Address migration, will go deployment order to be issued on corresponding former edge switch the corresponding interface, and upgrade its former historical online record; Otherwise, record its historical online record.
If the generation of new MAC Address is because VM moves, while depositing its historical online record; If if the generation of new MAC Address, due to the establishment of VM, does not exist its historical online record, virtual network administrative center does not go deployment order to issue, but record its historical online record.
After virtual network administrative center receives the MAC authentication request of edge switch initiation, also further carry out following operation:
Virtual network administrative center is to edge switch response MAC authentication result; Or, send to proxy server to complete authentication function MAC authentication request.
The interface message of edge switch comprises: IP address and the port numbers of edge switch, be issued to according to this IP address and port numbers the network configuration finding on the corresponding port of corresponding edge switch.
In specific embodiments of the invention, edge switch is when new MAC Address being detected, can initiate MAC address authentication process by Radius message, also can use the message of any other form to carry out MAC address authentication, as long as comprise the MAC Address newly detecting, the interface message of this MAC in message, just can use in the embodiment of the present invention and suggest plans and carry out the configuration feature of virtual network connection.
Specific embodiment of the invention Zhong， virtual network administrative center intercepts and captures the MAC authentication request packet that edge switch sends, and can solve virtual network and connect Configuration problem.Below in conjunction with accompanying drawing, based on the existing product performance of general manufacturer, the Radius message of take initiation MAC authentication request packet process is implementation procedure of the present invention as example describes in detail.
Referring to Fig. 2, Fig. 2 is that in the specific embodiment of the invention, virtual network connects Configuration flow chart.Concrete steps are:
Step 201, VSI Type definition, configuration remote authentication dial-in user service (Radius) is surveyed.
In VNet Manager, define the Network resource allocation (VSI profile) that all kinds of VM need.This step realize same 802.1Qbg, configuration virtual network configuration template, as VMtype1 template (profile) etc.; After configuration Radius surveys, VNet Manager can intercept and capture MAC authentication request Radius message.
Step 202, VM Manager binding VM and VSI Type.
In Virtual Machine Manager interface, for each of VM, need interface configuration VSI Type, bind network configuration.
Step 203, VM Manager notifies the Manager to VNet by VM and VSI Type binding information.
Step 204, VNet Manager stores VM and VSI Type binding information safeguard.
Step 205, the VM on physical server B moves on physical server A.
The VM that in this step, VM migration is standard creates or migration operation.
New VM creates, and configuration emigration process is with VM transition process, and this specific embodiment be take VM migration as example.
Step 201 is to only having in step 205 configuration Radius to survey as the application newly increases, and other realization is with existing realization, and the present invention repeats no more.
Step 206, edge switch detects new MAC Address at self physical interface, triggers MAC authentication.
Edge switch is the contiguous switch of physical server, and general switch is generally supported MAC authentication feature, as long as enable MAC authentication function to this switch, it will trigger MAC authentication.
Step 207, edge switch initiates MAC authentication request Radius message.
When using Radius server authentication mode to carry out MAC address authentication, can adopt MAC Address user name format, the information of carrying in Radius message is referring to table 1, and table 1 is the relevant field in Radius message standard attribute.
Table 1
Step 208, VNet Manager obtains MAC authentication request Radius message.
VNet Manager intercepts and captures Radius message by Radius probe.And from message, obtain the incoming end slogan of the MAC Address of VM as shown in table 1, the IP address of switch and switch.
Step 209, VNet Manager is transmitted to far-end checking dial-in customer's service (RADIUS servers) by MAC authentication request packet, makes it complete authentication function.
This step is optional step, as not only, for the virtual network configuration migration object of VM, also provides Radius Proxy effect simultaneously, MAC authentication request is transmitted to Radius Server and completes authentication function.
Step 210, VNet Manager returns to MAC authentication result.
For the specific embodiment of the invention, object does not lie in authentication, but knows VM event and data; And data center is that business is not interrupted to the requirement of server or VM, and not necessarily require authentication.Therefore, can directly reply authentication by Radius Probe passes through, or VNet Manager maintaining network access configuration in advance, according to the network admittance configuration of safeguarding in webmaster, judge, it is the network admittance strategy that VNet Manager can directly configure VM, do not need real Radius server, dispose simpler.
Step 211, VNet Manager obtains MAC Address and the interface message in Radius message, and in the VM of self maintained and VSI Type binding information, searches corresponding network configuration according to MAC Address.
Interface message in this step comprises IP address and the port numbers of access switch.
Step 212, VNet Manager is issued to according to interface message the network configuration finding on the corresponding interface of edge switch.
Step 213, VNet Manager searches its historical online record according to MAC Address, obtains the former on-position before this MAC Address migration.
Step 214, VNet Manager will go deployment order to be issued on corresponding former edge switch the corresponding interface.
In this step, go deployment order to be first issued on former edge switch, due to example explanation, the present invention does not draw former edge switch in Fig. 2, and directly signal is on server B.
Same reason configuration distributing to the corresponding interface of edge switch after, further dispose unanimously with existing realization, be no longer described in detail in the present invention.
Step 215, the historical online record of renewal MAC Address.
If the generation of new MAC Address is owing to creating VM, its history of existence online record not, while now searching its historical online record, does not find, and according to the interface message obtaining, records its historical online record.
In above-mentioned specific embodiment, describe radius message authentication in detail, can be not limited to radius message authentication in actual applications, other message carries out MAC authentication, as long as can carry relevant authentication information
Inventive concept based on same, the present invention also proposes a kind of network equipment, can be applicable to virtual network and connects Configuration.Referring to Fig. 3, Fig. 3 is that virtual network connects Configuration network equipment structural representation.This network equipment comprises: acquiring unit 301, search unit 302 and transmitting element 303.
Acquiring unit 301, for obtaining edge switch, at self physical interface, new medium access control MAC addresses detected and the MAC authentication request packet of initiating, wherein, new MAC Address is that VM migration or create produces, and obtains the described MAC Address of carrying in message and the interface message of described edge switch.
Transmitting element 303, for searching interface message that the network configuration of searching unit 302 obtains according to acquiring unit 301 and be issued to the corresponding interface of edge switch.
Preferably,
The network equipment further comprises: dispensing unit 304.
Acquiring unit 301, for surveying and obtain MAC authentication request Radius message according to the Radius of dispensing unit 304 configurations.
Preferably,
Transmitting element 303, if be further used for searching the historical online record existence that described MAC Address is searched in unit 302, obtain the former on-position before this MAC Address migration, will go deployment order to be issued on corresponding former edge switch the corresponding interface, and upgrade described historical online record; Otherwise, record the historical online record of described MAC Address.
Preferably,
Transmitting element 303, is further used for after acquiring unit 301 obtains described MAC authentication request packet, to edge switch response MAC authentication result; Or, MAC authentication request packet is transmitted to proxy server and completes authentication function.
Preferably,
Acquiring unit 301, the interface message of obtaining comprises: IP address and port numbers;
Transmitting element 303, the corresponding port that is issued to corresponding edge switch for IP address that the network configuration finding is obtained according to acquiring unit 301 and port numbers.
The unit of above-described embodiment can be integrated in one, and also can separatedly dispose; A unit can be merged into, also a plurality of subelements can be further split into.
In sum, while solving network configuration migration problem by technical scheme of the present invention, do not need switch or virtualization software product to make an amendment, based on the existing product performance of general manufacturer, can realize; Compatible existing virtual management software, and virtualization product (hypervisor & vSwitch), need to not do exploitation for different product adaptive.
After increasing Radius Probe, do not affect existing Radius certificate server and realize.Do not need the accurate position fixing process to on-position after VM migration, guarantee real-time and the accuracy of virtual network configuration dynamic migration (disposing and go to dispose).The invention solves equipment compatibility and the management complexity problem of the network configuration migration bringing completely centered by virtual network management.
The above, be only preferred embodiment of the present invention, is not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a virtual network connection configuration realizing method, is characterized in that, described method comprises:
Obtain edge switch and new medium access control MAC addresses detected and the MAC authentication request packet of initiating at self physical interface, wherein, described new MAC Address is virtual machine VM migration or creates generation, and obtain the described MAC Address of carrying in described message and the interface message of described edge switch, according to described MAC Address, in the VM of self maintained and virtual switch interface type VSI Type binding information, search corresponding network configuration, and the network configuration finding is issued on the corresponding interface of described edge switch according to described interface message.
2. method according to claim 1, is characterized in that, described method further comprises: configuration remote authentication subscriber dialing service Radius surveys, for obtaining Radius message;
Described MAC authentication request packet is MAC authentication request Radius message.
3. method according to claim 1 and 2, is characterized in that, described while searching corresponding network configuration according to described MAC Address, described method further comprises:
According to described MAC Address, search its historical online record, if existed, obtain the former on-position before this MAC Address migration, will go deployment order to be issued on corresponding former edge switch the corresponding interface, and upgrade described historical online record; Otherwise, record its historical online record.
4. method according to claim 1 and 2, is characterized in that, described in obtain the MAC authentication request that edge switch initiates after, described method further comprises:
To described edge switch response MAC authentication result;
Or,
MAC authentication request packet is transmitted to Radius server and completes authentication function.
5. according to the method described in claim 1 or 2 any one, it is characterized in that, described interface message comprises: IP address and port numbers;
Method on described the corresponding interface that the network configuration finding is issued to described edge switch according to described interface message is:
The network configuration finding is issued on the corresponding port of corresponding edge switch according to described IP address and port numbers.
6. a network equipment, can be applicable to virtual network and connects Configuration, it is characterized in that, the described network equipment comprises: acquiring unit, search unit and transmitting element;
Described acquiring unit, for obtaining edge switch, at self physical interface, new medium access control MAC addresses detected and the MAC authentication request packet of initiating, wherein, described new MAC Address is that virtual machine VM migration or create produces, and obtains the described MAC Address of carrying in described message and the interface message of described edge switch;
The described unit of searching, searches corresponding network configuration for the MAC Address obtained according to described acquiring unit at VM and the virtual switch interface type VSI Type binding information of the maintenance at self place;
Described transmitting element, for searching by described the corresponding interface that interface message that the network configuration of searching unit obtains according to described acquiring unit is issued to described edge switch.
7. the network equipment according to claim 6, is characterized in that, the described network equipment further comprises: dispensing unit;
Described dispensing unit, surveys for configuring remote authentication subscriber dialing service Radius; Wherein, described Radius surveys and is used for obtaining Radius message;
Described acquiring unit, for surveying and obtain MAC authentication request Radius message according to the Radius of described dispensing unit configuration.
8. according to the network equipment described in claim 6 or 7, it is characterized in that,
The described unit of searching, the MAC Address that is further used for obtaining according to described acquiring unit is searched its historical online record;
Described transmitting element, if search the historical online record existence that described MAC Address is searched in unit described in being further used for, obtain the former on-position before this MAC Address migration, will go deployment order to be issued on corresponding former edge switch the corresponding interface, and upgrade described historical online record; Otherwise, record the historical online record of described MAC Address.
9. according to the network equipment described in claim 6 or 7, it is characterized in that,
Described transmitting element, is further used for after described acquiring unit obtains described MAC authentication request packet, to described edge switch response MAC authentication result; Or, MAC authentication request packet is transmitted to proxy server and completes authentication function.
10. according to the network equipment described in claim 6 or 7, it is characterized in that,
Described acquiring unit, the interface message of obtaining comprises: IP address and port numbers;
Described transmitting element, the corresponding port that is issued to corresponding edge switch for IP address that the network configuration finding is obtained according to described acquiring unit and port numbers.
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| CN107508767B (en) * | 2012-03-29 | 2020-10-02 | 英特尔公司 | Techniques for using assigned switch identifications in input/output devices |
| CN103428018B (en) * | 2012-05-23 | 2016-12-14 | 华为技术有限公司 | The method of virtual machine position, location and equipment thereof |
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| US9535728B2 (en) | 2013-03-18 | 2017-01-03 | International Business Machines Corporation | Scalable policy management in an edge virtual bridging (EVB) environment |
| CN103501295B (en) * | 2013-09-27 | 2017-03-08 | 杭州华三通信技术有限公司 | A kind of remote access method based on virtual machine (vm) migration and equipment |
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| CN105471744B (en) * | 2014-09-19 | 2018-10-09 | 新华三技术有限公司 | A kind of virtual machine migration method and device |
| CN104486299B (en) * | 2014-11-28 | 2018-07-24 | 新华三技术有限公司 | A kind of method and apparatus that ACL is issued |
| EP3261290B1 (en) * | 2015-12-31 | 2020-11-25 | Huawei Technologies Co., Ltd. | Software defined data center and method for deploying service cluster therein |
| US10389591B2 (en) * | 2016-10-28 | 2019-08-20 | Microsoft Technology Licensing, Llc | Autonomous configuration system for a service infrastructure |
| CN106878204B (en) * | 2016-12-21 | 2020-09-08 | 新华三技术有限公司 | Virtual machine creating method and device |
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| CN102136931B (en) * | 2010-09-20 | 2013-12-04 | 华为技术有限公司 | Method for configuring virtual port network strategies, network management center and related equipment |
| CN101980496A (en) * | 2010-10-13 | 2011-02-23 | 华为数字技术有限公司 | Message processing method and system, exchange board and access server equipment |
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Address after: 310052 Binjiang District Changhe Road, Zhejiang, China, No. 466, No. Patentee after: Xinhua three Technology Co., Ltd. Address before: 310053 Hangzhou hi tech Industrial Development Zone, Zhejiang province science and Technology Industrial Park, No. 310 and No. six road, HUAWEI, Hangzhou production base Patentee before: Huasan Communication Technology Co., Ltd. |