CN106803786A - A kind of network element update method, system based on network function virtualization - Google Patents
A kind of network element update method, system based on network function virtualization Download PDFInfo
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- CN106803786A CN106803786A CN201510843707.3A CN201510843707A CN106803786A CN 106803786 A CN106803786 A CN 106803786A CN 201510843707 A CN201510843707 A CN 201510843707A CN 106803786 A CN106803786 A CN 106803786A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
- H04L41/0813—Configuration setting characterised by the conditions triggering a change of settings
- H04L41/082—Configuration setting characterised by the conditions triggering a change of settings the condition being updates or upgrades of network functionality
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Abstract
The invention discloses a kind of network element update method, system based on NFV, methods described includes：The corresponding virtual machine VM addresses of VNF examples are obtained, and determines the corresponding relation of VM and process；According to the VM and the corresponding relation of process, the VM of standby process is accessed using the VM addresses, and VNF upgrade files are sent to the virtual memory path of the VM；The standby process is deleted, upgrade script is performed, and utilizes the VNF upgrade files launching process, upgraded with to the VNF.
Description
Technical field
The present invention relates to network management technology, more particularly to it is a kind of based on network function virtualization (NFV,
Network Function Virtualization) network element update method, system.
Background technology
Virtualization network element (VNF, Virtualised Network Function) refers to by virtual ring
Software that specific function is run in border and the functional network element realized.ETSI (ETSI,
European Telecommunications Standards Institute) in, instantiations of the NFV to Virtual NE
As shown in figure 1, the main process of Virtual NE instantiation includes：
1) operator/OSS (OSS, Office of Strategic Services) sends instantiation
One new VNF request virtualizes scheduler (NFVO, Network Function to network function
Virtualization Operator), the carrying VNF to be instantiated marks and corresponding VNF instantiate description.
2) NFVO verifies that this is asked：Check whether sender possesses the authority for initializing this VNF example,
Check whether required parameter is legal, and whether such as mandatory parameter carries.If checking does not pass through, failure is returned.
3) NFVO send instantiation request to VNF belong to management Virtual NE manager (VNFM,
Virtualised Network Function Manager), the example initialization to VNF carries VNF marks,
The parameters such as VNF instantiation descriptions, correspondence VNFD.
4) VNFM parsings VNFD, (including virtual computing resource is virtually deposited to obtain resource needed for VNF
Storage resource etc.) after, carry out resource authorization to NFVO requests.
5) NFVO is checked available resources and is selected suitable virtual resource according to global resource data
Manager (VIM), after completing resource authorization, VIM marks (ID) belonging to available resources is returned to
VNFM。
6) VNFM, to the VIM of specified VIM ID, is carried and created according to the instruction of the NFVO for receiving
(parameter includes the specification of virtual machine, the URL of virtual machine image file for the instruction of virtual machine
(URL, Uniform Resource Locator), compatibility requirement etc.).
7) VIM distribution Internet resources and storage resource, and notify virtual machine manager (VMM, Virtual
Machine Manager) create corresponding virtual machine (VM, Virtual Machine), and the void that will be created
Plan machine adds the network for having created.
8) after VIM completes resource allocation success, VNFM is returned result to.
9) VNFM is disposed the configuration of (instantiation) relevant parameter.
10) VNFM completes deployment relevant parameter with postponing, and notifies EMS.
11) adding as VNF can quilt for Element management system (EMS, Element Management System)
The object of management.
12) EMS carries out the configuration of network element application relevant parameter.
13) whether (optional by EMS) the inspection VNF of VNFM can use.
14) after VNFM judges that VNF operations can provide service, VNFM uses VNF life cycles
Change notify (Lifecycle Changes Notification) by VNF instantiation complete result be sent to
NFVO, carries VNF instance identifications, the virtual resources shared by VNF etc..
15) NFVO returns to VNF instantiations and completes result to operator/OSS.
Reference picture 2, includes to the flow that network element is updated at present：
1) operator imports the software to be upgraded and upgrade script to EMS.
2) EMS preserves upgrade information and upgrade script under current software catalog.
3) operator sends upgrade command to EMS.
4) EMS is communicated with the network element software system to be upgraded, and upgrade file and upgrade script are transferred into net
Network software systems.
5) upgrade file and upgrade script that network element software system will be received are stored under Current software catalogue.
6) EMS sends standby upgrade command to network element software system.
7) network element software system performs upgrade script.
8) upgrade script is performed：Stop standby process.
9) upgrade script is performed：Started using new version software.
10) after starting successfully, EMS sends and switches instruction to network element software system, and making the process of upgrading turns into
Active process
11) EMS indicates network element software system to complete the upgrading of standby process.So as to complete whole upgradings.
Existing NFV technologies only have the flow for supporting network element instantiation operation, without the example upgrading of support network element
Flow, cause network element example upgrade scene there is blank.Conventional network elements software upgrading is carried out by EMS, is not had
There is the concept of network element example, but under NFV, be a brand-new system for EMS, EMS lacks phase
Interface and flow is answered to support to carry out network element example renewal.
The content of the invention
In order to solve the above technical problems, the embodiment of the invention provides a kind of network element renewal side based on NFV
Method, system.
Network element update method based on NFV provided in an embodiment of the present invention includes：
The corresponding VM addresses of VNF examples are obtained, and determines the corresponding relation of VM and process；
According to the VM and the corresponding relation of process, the VM of standby process is accessed using the VM addresses,
And send to the virtual memory path of the VM VNF upgrade files；
The standby process is deleted, upgrade script is performed, and utilizes the VNF upgrade files launching process,
Upgrade with to the VNF.
In the embodiment of the present invention, before the address of the corresponding VM of the acquisition VNF examples, methods described
Also include：
Upgrade information is obtained, wherein, the upgrade information at least includes：The VNF upgrade files, upgrading
Script；
The corresponding VNF marks of the upgrade information are obtained, VNF examples pair are obtained according to VNF marks
The storage address answered；
The upgrade information is stored into storage region corresponding to the storage address.
In the embodiment of the present invention, methods described also includes：
After the completion of the VNF is upgraded, the notification message that the standby process sends is received.
In the embodiment of the present invention, methods described also includes：
VM where control active process and the VM where standby process are switched, so that upgrading is opened
Dynamic process switching is the active process, and the active process do not upgraded switches to the standby process.
In the embodiment of the present invention, methods described also includes：
The upgrading of the VNF upgrade files being updated using current standby process；
After the completion of upgrading, the VM where control active process and the VM where standby process are switched,
So that the standby process switches to the active process, the active process to switch to the standby process.
Network element based on NFV more new system provided in an embodiment of the present invention, including：
Determining module, for obtaining the corresponding VM addresses of VNF examples, and determines that VM is right with process
Should be related to；
Access modules, for the corresponding relation according to the VM and process, are accessed using the VM addresses
The VM of standby process, and VNF upgrade files are sent to the virtual memory path of the VM；
Performing module, for deleting the standby process, performs upgrade script, and using VNF upgradings
File start process, upgrades with to the VNF.
In the embodiment of the present invention, the system also includes：
First acquisition module, for obtaining upgrade information, wherein, the upgrade information at least includes：It is described
VNF upgrade files, upgrade script；
Second acquisition module, for obtaining the corresponding VNF marks of the upgrade information, according to the VNF
Mark obtains the corresponding storage address of VNF examples；
Memory module, for the upgrade information to be stored into storage region corresponding to the storage address.
In the embodiment of the present invention, the system also includes：
Communication module, after the completion of being upgraded as the VNF, receives the logical of the standby process transmission
Know message.
In the embodiment of the present invention, the system also includes：
Control module, the VM where for controlling active process and the VM where standby process are switched,
So that the started process switching of upgrading is the active process, the active process do not upgraded switches to described standby
Use process.
In the embodiment of the present invention, the performing module is additionally operable to what is be updated using current standby process
The upgrading of VNF upgrade files；
The control module, is additionally operable to after the completion of upgrading, VM and standby process where control active process
The VM at place is switched, so that the standby process switches to the active process, the active process
Switch to the standby process.
In the technical scheme of the embodiment of the present invention, the corresponding virtual machine VM addresses of VNF examples are obtained, and
Determine the corresponding relation of VM and process；According to the VM and the corresponding relation of process, using the VM
Address accesses the VM of standby process, and VNF upgrade files are sent to the virtual memory path of the VM；
The standby process is deleted, upgrade script is performed, and utilizes the VNF upgrade files launching process, with right
The VNF is upgraded.Enhanced EMS is interacted with VNFM, obtains VNF correspondence VIM addresses,
VM is identified and address.It can be seen that, the embodiment of the present invention is by obtaining the corresponding process of VNF examples and virtual machine
The mapping relations of address；VNF upgrade files are stored in the storage region of VM；Realize upgrading text
The transmission of part is simultaneously upgraded.The embodiment of the present invention proposes the concept of network element example in network element updating flow,
The flow of the off line meta-instance upgrading of NFV technologies is supported, the blank that network element example upgrading scene is present has been filled up.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of the instantiation of Virtual NE；
Fig. 2 is the schematic flow sheet that network element updates；
Fig. 3 is the schematic flow sheet of the network element update method based on NFV of the embodiment of the present invention one；
Fig. 4 is the structure composition schematic diagram of the more new system of the network element based on NFV of the embodiment of the present invention one；
Fig. 5 is the schematic flow sheet of the network element update method based on NFV of the embodiment of the present invention two；
Fig. 6 is the structure composition schematic diagram of the more new system of the network element based on NFV of the embodiment of the present invention two.
Specific embodiment
The characteristics of in order to more fully hereinafter understand the embodiment of the present invention and technology contents, below in conjunction with the accompanying drawings
Realization to the embodiment of the present invention is described in detail, appended accompanying drawing purposes of discussion only for reference, is not used for
Limit the embodiment of the present invention.
Fig. 3 is the schematic flow sheet of the network element update method based on NFV of the embodiment of the present invention one, such as Fig. 3
Shown, the network element update method of the NFV is comprised the following steps：
Step 301：The corresponding virtual machine VM addresses of VNF examples are obtained, and determines that VM is right with process
Should be related to.
In the embodiment of the present invention, before the address of the corresponding VM of the acquisition VNF examples, methods described
Also include：
Upgrade information is obtained, wherein, the upgrade information at least includes：The VNF upgrade files, upgrading
Script；
The corresponding VNF marks of the upgrade information are obtained, VNF examples pair are obtained according to VNF marks
The storage address answered；
The upgrade information is stored into storage region corresponding to the storage address.
Step 302：According to the VM and the corresponding relation of process, access standby using the VM addresses
The VM of process, and VNF upgrade files are sent to the virtual memory path of the VM.
Step 303：The standby process is deleted, upgrade script is performed, and utilize the VNF upgrade files
Launching process, upgrades with to the VNF.
In the embodiment of the present invention, methods described also includes：After the completion of the VNF is upgraded, institute is received
State the notification message of standby process transmission.
In the embodiment of the present invention, methods described also includes：VM and standby process where control active process
The VM at place is switched, so that the started process switching of upgrading is the active process, is not upgraded
Active process switches to the standby process.
In the embodiment of the present invention, methods described also includes：
The upgrading of the VNF upgrade files being updated using current standby process；
After the completion of upgrading, the VM where control active process and the VM where standby process are switched,
So that the standby process switches to the active process, the active process to switch to the standby process.
The technical scheme of the embodiment of the present invention, it is proposed that one kind passes through enhanced Element management system
(EMS-Advanced) have both it and realize the soft of conventional physical network function network element and virtualization network element
Part updating ability.Enhanced EMS is also referred to as the network element more new system based on NFV by the embodiment of the present invention,
The enhanced EMS at least has following functions：Enhanced EMS is interacted with VNFM, obtains VNF pairs
Answer VIM addresses, VM marks and VM addresses；Enhanced EMS obtain VNF examples correspondence process and
VM marks and the mapping relations of address；Enhanced EMS is interacted with VIM, and upgrade file is stored in
The storage region of VM；Enhanced EMS is interacted with VM, is transmitted upgrade file and is upgraded.
To realize the above-mentioned network element update method based on NFV, the embodiment of the present invention additionally provides one kind and is based on
The network element of NFV more new system, as shown in figure 4, the system includes：
Determining module 41, for obtaining the corresponding VM addresses of VNF examples, and determines VM with process
Corresponding relation；
Access modules 42, for the corresponding relation according to the VM and process, are visited using the VM addresses
The VM of standby process is asked, and VNF upgrade files are sent to the virtual memory path of the VM；
Performing module 43, for deleting the standby process, performs upgrade script, and utilize the VNF
Upgrade file launching process, upgrades with to the VNF.
The system also includes：
First acquisition module 44, for obtaining upgrade information, wherein, the upgrade information at least includes：Institute
State VNF upgrade files, upgrade script；
Second acquisition module 45, for obtaining the corresponding VNF marks of the upgrade information, according to the VNF
Mark obtains the corresponding storage address of VNF examples；
Memory module 46, for the upgrade information to be stored into storage region corresponding to the storage address.
The system also includes：
Communication module 47, after the completion of being upgraded as the VNF, receives the standby process and sends
Notification message.
The system also includes：
Control module 48, the VM where for controlling active process and the VM where standby process are fallen
Change, so that the started process switching of upgrading is the active process, the active process do not upgraded switches to institute
State standby process.
The performing module 43, is additionally operable to the VNF upgrade files being updated using current standby process
Upgrading；
The control module 48, be additionally operable to upgrading after the completion of, control active process where VM and it is standby enter
VM where journey is switched so that the standby process switches to the active process, it is described it is primary enter
Journey switches to the standby process.
It will be appreciated by those skilled in the art that each mould in the more new system of the network element based on NFV shown in Fig. 4
Block realizes that function can refer to the associated description of the foregoing network element update method based on NFV and understand.Fig. 4
The function of each module in the shown more new system of the network element based on NFV can be by running on processor
Program and realize, can also be realized by specific logic circuit.
With reference to concrete application scene to network element update method, the system based on NFV of the embodiment of the present invention
It is described in further detail.
As shown in figure 5, in the case that the more new system of the network element based on NFV is realized by particular hardware network element,
Including such as lower module：EMS, OSS/BSS, NFVO, VNFM, VIM, network function virtual resources
(NFVI)、VM.EMS is the important component in network, manages the function and appearance of each VM
Amount, is the important node of network element example renewal.The embodiment of the present invention mainly for VM examples renewal, base
It is to support the enhanced EMS of VM more New functions in the network element more new system of NFV.
The renewal of VM examples refers to carry out software upgrading to current VM according to the VNF upgrade files for providing.
In embodiments of the present invention, VNF upgrade files do not exist locally, but are stored in the storage of VIM management
Space, so enhanced EMS needs to obtain VIM addresses by VNFM, interacts with VIM, indicates
VIM provides memory space address and determines file path, preserves VNF upgrade files.
In NFV, EMS only managed network elements, but enhanced EMS will complete upgrading, it is necessary to obtains
The mapping relations of network element process and corresponding VM.This enhanced EMS can be obtained by being interacted with VNFM
.
In NFV, EMS need not be interacted with VM, but enhanced EMS to complete upgrading, it is necessary to
With VM interactions, the application software on VM is updated, and restart process service.
In addition, in the embodiment of the present invention, in order to ensure the reliability of network element and system, each VM exists
During instantiation, all can the main VM of automatic deployment and standby VM, refer specifically to can the presence of active and standby process, generally it is main enter
Cheng Jinhang Business Processings, standby process does not do Business Processing, when host process breaks down, standby process start into
Row Business Processing.Active and standby process can be deployed on different virtual machines.
The more new system of the network element based on NFV with reference to shown in Fig. 5, reference picture 6, the base of the embodiment of the present invention
Comprised the following steps in the network element update method of NFV：
Step 601：Operator/OSS sends upgrade information to EMS-Advanced and is that software upgrading bag divides
With new memory space, wherein upgrade information is including VNF upgrade files and upgrade script etc..
Step 602：EMS-Advanced obtains the corresponding VNF marks of upgrade information, is interacted with VNFM
Obtain the corresponding file storage address of VNF examples.
Step 603：EMS-Advanced and VIM is interacted, and VNF upgrade files are stored in into file storage
Address.
Step 604：EMS-Advanced VM ground corresponding with the VNFM interaction current VNF examples of acquisition
Location.EMS-Advanced determines the corresponding relation of corresponding VM and process.
Step 605：EMS-Advanced accesses the VM of standby process using VM addresses, by VNF liters
Level file is delivered to the virtual memory path of VM.
Step 606：EMS-Advanced indicates the client operating system of VM to delete standby process, and startup is held
Row upgrade script, uses the upgrade file launching process of redaction.
Step 607：After the completion of upgrading, standby process notifies EMS-Advanced.
Step 608：VM where the EMS-Advanced instruction active processes and VM where standby process
Switched.
Step 609：New Upgrade process turns into active process.
Step 610：The former active process do not upgraded is changed into standby process.
Step 611：Complete upgrading of the existing standby process using redaction upgrade file.
Step 612：After the completion of upgrading, the VM where the notifying active process and VM where standby process
Switched.
Step 613：Standby process becomes host process.
Step 614：Host process becomes standby process.
Step 615：Complete upgrading.
In the embodiment of the present invention, can also realize that the upgrading of network element example software retracts in aforementioned manners.
Between technical scheme described in the embodiment of the present invention, in the case where not conflicting, can be in any combination.
In several embodiments provided by the present invention, it should be understood that disclosed method and smart machine,
Can realize by another way.Apparatus embodiments described above are only schematical, for example,
The division of the unit, only a kind of division of logic function, can there is other division side when actually realizing
Formula, such as：Multiple units or component can be combined, or be desirably integrated into another system, or some features can
To ignore, or do not perform.In addition, the coupling or straight each other of shown or discussed each part
Connect coupling or communication connection can be the INDIRECT COUPLING or communication connection of equipment or unit by some interfaces,
Can be electrical, machinery or other forms.
It is above-mentioned as separating component illustrate unit can be or may not be it is physically separate, as
The part that unit shows can be or may not be physical location, you can positioned at a place, also may be used
To be distributed on multiple NEs；Part or all of unit therein can be according to the actual needs selected
Realize the purpose of this embodiment scheme.
In addition, each functional unit in various embodiments of the present invention can be fully integrated into a second processing list
In unit, or each unit is individually as a unit, it is also possible to two or more unit collection
Into in a unit；Above-mentioned integrated unit can both be realized in the form of hardware, it would however also be possible to employ hard
Part adds the form of SFU software functional unit to realize.
The above, specific embodiment only of the invention, but protection scope of the present invention is not limited to
This, any one skilled in the art the invention discloses technical scope in, can readily occur in
Change or replacement, should all be included within the scope of the present invention.
Claims (10)
1. it is a kind of based on network function virtualize NFV network element update method, it is characterised in that the side
Method includes：
The corresponding virtual machine VM addresses of virtualization network element VNF examples are obtained, and is determined VM and is entered
The corresponding relation of journey；
According to the VM and the corresponding relation of process, the VM of standby process is accessed using the VM addresses,
And send to the virtual memory path of the VM VNF upgrade files；
The standby process is deleted, upgrade script is performed, and utilizes the VNF upgrade files launching process,
Upgrade with to the VNF.
2. the network element update method of NFV is based on according to claim 1, it is characterised in that described to obtain
Before taking the address of the corresponding VM of VNF examples, methods described also includes：
Upgrade information is obtained, wherein, the upgrade information at least includes：The VNF upgrade files, upgrading
Script；
The corresponding VNF marks of the upgrade information are obtained, VNF examples pair are obtained according to VNF marks
The storage address answered；
The upgrade information is stored into storage region corresponding to the storage address.
3. the network element update method of NFV is based on according to claim 1, it is characterised in that the side
Method also includes：
After the completion of the VNF is upgraded, the notification message that the standby process sends is received.
4. the network element update method of NFV is based on according to claim 3, it is characterised in that the side
Method also includes：
VM where control active process and the VM where standby process are switched, so that upgrading is opened
Dynamic process switching is the active process, and the active process do not upgraded switches to the standby process.
5. the network element update method of NFV is based on according to claim 4, it is characterised in that the side
Method also includes：
The upgrading of the VNF upgrade files being updated using current standby process；
After the completion of upgrading, the VM where control active process and the VM where standby process are switched,
So that the standby process switches to the active process, the active process to switch to the standby process.
6. a kind of more new system of the network element based on NFV, it is characterised in that the system includes：
Determining module, for obtaining the corresponding VM addresses of VNF examples, and determines that VM is right with process
Should be related to；
Access modules, for the corresponding relation according to the VM and process, are accessed using the VM addresses
The VM of standby process, and VNF upgrade files are sent to the virtual memory path of the VM；
Performing module, for deleting the standby process, performs upgrade script, and using VNF upgradings
File start process, upgrades with to the VNF.
7. the more new system of the network element based on NFV according to claim 6, it is characterised in that described
System also includes：
First acquisition module, for obtaining upgrade information, wherein, the upgrade information at least includes：It is described
VNF upgrade files, upgrade script；
Second acquisition module, for obtaining the corresponding VNF marks of the upgrade information, according to the VNF
Mark obtains the corresponding storage address of VNF examples；
Memory module, for the upgrade information to be stored into storage region corresponding to the storage address.
8. the more new system of the network element based on NFV according to claim 6, it is characterised in that described
System also includes：
Communication module, after the completion of being upgraded as the VNF, receives the logical of the standby process transmission
Know message.
9. the more new system of the network element based on NFV according to claim 8, it is characterised in that described
System also includes：
Control module, the VM where for controlling active process and the VM where standby process are switched,
So that the started process switching of upgrading is the active process, the active process do not upgraded switches to described standby
Use process.
10. the more new system of the network element based on NFV according to claim 9, it is characterised in that
The performing module, is additionally operable to the liter of VNF upgrade files being updated using current standby process
Level；
The control module, is additionally operable to after the completion of upgrading, VM and standby process where control active process
The VM at place is switched, so that the standby process switches to the active process, the active process
Switch to the standby process.
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| CN106803786B (en) | 2020-01-24 |
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