CN102651729A - Resource configuration method and device - Google Patents
Resource configuration method and device Download PDFInfo
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- CN102651729A CN102651729A CN2011100435372A CN201110043537A CN102651729A CN 102651729 A CN102651729 A CN 102651729A CN 2011100435372 A CN2011100435372 A CN 2011100435372A CN 201110043537 A CN201110043537 A CN 201110043537A CN 102651729 A CN102651729 A CN 102651729A
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Abstract
The invention discloses a resource configuration method and equipment. The method comprises the following steps that: load information of a resource pool is obtained, and in addition, whether the resource pool is overloaded or not is judged according to the load information of the resource pool; and if the resource pool is overloaded, a virtual network element is created, and in addition, the created virtual network element is added into the resource pool. When the method and the equipment provided by the invention are adopted, the resource configuration flexibility can be improved.
Description
Technical field
The present invention relates to networking technology area, particularly relate to a kind of resource allocation method and device.
Background technology
Load-balancing technique provides the effective ways of bandwidth, increase throughput, reinforcement network data-handling capacity, raising network more flexible and the availability of a kind of extended network equipment and server.
Load-balancing mechanism based on resource pool is a kind of load-balancing technique commonly used, and basic principle is as shown in Figure 1.Resource pool is made up of the identical network element of function, and has different IP addresses and identical application layer sign.Network element in the resource pool is registration application layer sign, IP address and some out of Memory at the load balancing control point, for example with the performance-relevant weight value of this network element (weights).When the user need visit the network element of certain application layer sign; At first inquire about to the load balancing control point; The load balancing control point is selected one or several IP address and is returned to the user according to the load balancing rule in the corresponding IP address list of the application layer sign of registration, and the user is according to IP accessed corresponding net element.The rule of load balancing can be to distribute network element by the IP sequence of addresses for the user, also can be to distribute network element according to the priority of network element for the user, can also distribute network element for the user according to weight, load (load) equivalence.
VoIP system adopts the mode of application layer resource pool to realize the application layer load balancing usually.Wherein, VoIP (Voice over Internet Protocol, IP-based voice) technology is meant and on the IP data network, does real-time transmission with after the digitlization of simulated sound signal with the pattern of data packet (Data Packet).VoIP system is that operator adopts voip technology that the network system of voice service is provided for the user.IMS (IPMultimedia Subsystem, IP Multimedia System), DSN (Distributed Services Network, Distributed Services network) VoIP belong to VoIP system.
In IMS; Owing to adopt SIP (Session Initiation Protocol; Session initiation protocol) URI (Universal Resource Identifier universal resource identifier) is as application layer resource description mode, and therefore above-mentioned resource pool can adopt DNS (Domain Name System, name server) mechanism for resolving to realize; Promptly in dns server, dispose a plurality of IP address for same host domain name; Replying DNS when inquiry, dns server to each inquiry will with the IP address of host record in the DNS file in order (Round Robin pattern) return different analysis results, the visit of client is directed to different machines gets on; Make different client side visit different servers, thereby reach the purpose of load balancing.Form resource pool like CSCF of the same type (Call Session Control Function, CSCF) network element according to carrier policy, DNS is the load balancing control point of resource pool.The dilation process of CSCF is exactly that network management system is configured to office data on the new CSCF earlier, and the IP address configuration with new CSCF arrives under certain CSCF resource pool domain name of DNS again.Office data such as I-CSCF comprises address of HSS (home subscriber server) etc.
In DSN VoIP, Edge Agent (EA, edge proxies) node is corresponding to the P-CSCF of IMS.The terminal finds that the mode of Edge Agent is identical with IMS, so its load balancing can realize through DNS group Pool.Different is that the flow process of execution DSN network discovery earlier after new Edge Agent node starts is configured to its own IP address (directly perhaps passing through webmaster) under the EA resource pool domain name of DNS again.
In realizing process of the present invention, the inventor finds that there is following problem at least in prior art:
In the existing load-balancing mechanism, when needs dilatation resource pool, need in resource pool, add new network element, and add the IP address of this new network element at the load balancing control point of this resource pool through network management system.Existing load-balancing mechanism based on resource pool; But balance is equipped with the load of equipment room mutually; But the situation for mutual equipment fully all overloads then can't be tackled, and the method that can only take to add new hardware network element is carried out dilatation, for the situation of short-term overload; The method of taking to add new hardware network element then can produce the too much wasting of resources, and flexibility is relatively poor.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of resource allocation methods, realizing the resource pool resource distribution, and can improve the flexibility of resource distribution, and for this reason, the embodiment of the invention adopts following technical scheme:
A kind of resource allocation method comprises:
Obtain the load information of resource pool, and judge according to the load information of said resource pool whether said resource pool overload occurs;
If overload appears in said resource pool, then join in the said resource pool according to the need of load establishment Virtual NE of said resource pool and with the Virtual NE of creating.
A kind of resource allocation method comprises:
Obtain the load information of resource pool, and judge according to the load information of said resource pool whether said resource pool underloading occurs;
If underloading appears in said resource pool, then unload the Virtual NE in the said resource pool.
A kind of device for allocating resources comprises:
Acquisition module is used to obtain the load information of resource pool;
Judge module, the load information of the said resource pool that is used for getting access to according to said acquisition module judge whether said resource pool overload occurs;
The resource distribution module is used for when said judge module judges that overload appears in said resource pool, according to the need of load indication VMM establishment Virtual NE of said resource pool;
Notification module is used for notifying network management system that the Virtual NE of creating is joined said resource pool.
A kind of device for allocating resources is characterized in that, comprising:
Acquisition module is used to obtain the load information of resource pool;
Judge module, the load information of the resource pool that is used for getting access to according to said acquisition module judges whether said resource pool underloading occurs;
Notification module is used for when said judge module judges that underloading appears in said resource pool, and the notice network management system unloads the Virtual NE in the said resource pool.
The above embodiment of the present invention adopts Virtual NE as interim network element, under the situation of resource pool overload, Virtual NE is joined in the resource pool on the one hand, has realized the dilatation of resource pool; On the other hand, occur unloading the Virtual NE in the resource pool under the low situation of carrying at resource pool, thereby realized the reduction of resource pool.Can realize resource pool resource distribution flexibly such as prior art.
Description of drawings
Fig. 1 is the load-balancing mechanism principle schematic of resource pool in the prior art;
The resource pool load-balancing mechanism system architecture sketch map that Fig. 2 provides for the embodiment of the invention;
Fig. 3 expands schematic flow sheet for the resource pool resource that the embodiment of the invention provides;
The resource pool resource release flow sketch map that Fig. 4 provides for the embodiment of the invention;
The structural representation of the resource allocation apparatus that Fig. 5 provides for the embodiment of the invention;
The structural representation of the resource allocation apparatus that Fig. 6 provides for the embodiment of the invention.
Embodiment
Problem to the prior art existence; In the embodiment of the invention, when in the VoIP system resource pool, being equipped with mutually apparatus of load and meeting overload and judge, according to need of load application resource and generate interim Virtual NE and add VoIP system; Then trigger the interim equilibrating mechanism of application layer, fast balanced load; When load reduces, move interim network element load, withdraw from interim network element and report release resource, thereby can tackle the interim dilatation demand of VoIP system flexibly.Certainly the embodiment of the invention is not limited to only use at VoIP system.
The embodiment of the invention has been used Intel Virtualization Technology, at first Intel Virtualization Technology is carried out simple declaration below.
In computer realm, Intel Virtualization Technology normally simulates a plurality of independent virtual machines on a hardware platform.Intel Virtualization Technology allows a hardware platform to move a plurality of operating systems simultaneously, and application program can move in separate space and be independent of each other, thereby makes full use of hardware resource, significantly improves operating efficiency.After having adopted Intel Virtualization Technology; The operation of program or software not necessarily exclusively enjoys the physical computing resource of bottom; Concerning it, it just operate in one with the true identical execution environment of computing environment (having identical CPU frequency, internal memory and hard-disk capacity) in.
Virtual machine be meant on a hardware platform, simulate a plurality of independently, ISA (IndustrialStandard Architecture; Industrial standard architecture bus) the structure virtual hardware system identical with actual hardware; On each virtual hardware system, can move different operating systems; Be client operating system (Guest OS), these Guest OS are through VMM (Virtual Machine Monitor, virtual machine monitor) visit actual physical resource.See from system architecture; VMM is a software layer between computer hardware and each operating system; Be in charge of and isolate a plurality of virtual machines of upper strata operation; For these virtual machines provide safety, running environment independently, simultaneously also for each virtual machine provides one to overlap virtual hardware environment, like CPU, internal memory, hard disk etc.
Related in embodiments of the present invention virtualization comprises virtual machine creating and the delete function of VMM.
The implementation procedure of the virtual machine creating function of VMM can comprise: after VMM receives the request of creating virtual machine; Obtain the resources of virtual machine that carries in the request and require (like CPU ability to work, memory size, hard disk size, required virtual machine image etc.); Be that virtual machine distributes corresponding physical resource (like CPU, internal memory, hard disk etc.) according to resource requirement then, and generate the virtual machine image of user's appointment.After the virtual machine creating success, corresponding virtual machine information can generally comprise with the stored in form of file on hardware platform: configuration file, describe virtual disk characteristic file, the file that is used for store data, journal file, swap file, snapshot document etc.
The implementation procedure of the virtual machine delete function of VMM can comprise: VMM closes corresponding virtual machine after receiving the request of deletion virtual machine, deletes the associated documents of this virtual machine, and discharges shared physical resource.
Below in conjunction with accompanying drawing the embodiment of the invention is described in detail.
Referring to Fig. 2, the system architecture diagram that provides for the embodiment of the invention based on the load-balancing mechanism of flexible resource allotment.As shown in the figure; The embodiment of the invention has increased resource pool total load decision device in the resource pool system framework of existing load-balancing mechanism; And the corresponding interface 3 that has increased between resource pool total load decision device and network management system, the interface 4 between resource pool total load decision device and the VMM.Wherein, interface 3 can be an internal interface, also can be external interface, as realizing through SNMP (Simple Network ManagementProtocol, Simple Network Management Protocol).
In the resource pool system framework of the load-balancing mechanism that the embodiment of the invention provides, load balancing control point, network element have been formed traditional resource pool, and managed by network management system.Network element periodically provides load-related parameter to network management system through interface 1; Such as; The average operating position of the resource (like CPU, internal memory, hard disk etc.) of each network element in the past period (time cycle can be provided with) the interior resource pool can be provided, and presentation mode includes but not limited to initiatively report or inquired about.Interface 1 can adopt snmp protocol to realize.
Network management system can be revised the load balancing strategy through the balanced control point of interface 2 notification payload, and such as the weight value of in the DNS system, heightening certain network element, the probability that makes its address be returned is higher than other network element.Can adopt in the network management system that { form of network element 2.addr...} is come the identifying resource pond for Pool_ID, network element 1.addr.
VMM can extract the network element mirror image according to the order that resource pool total load decision device sends and create virtual machine or delete virtual machine from network element virtual machine image pond.When VMM received order of establishment virtual machine and inadequate resource simultaneously, VMM can manage conflict according to certain strategy, and concrete resolution policy can be introduced in the embodiment of back in detail.After creating successfully, VMM returns the IP address of newly-built interim network element through interface 4.On VMM, can move SNMP agent (SNMP agency), SNMP agent can receive the series of SN-striking MP operation request (SNMP operation requests) of resource pool total load decision device, and on the main frame of its management, takes appropriate measures.The establishment virtual machine message that resource pool total load decision device sends adopts the snmp protocol transmission, and its parameter can comprise the relevant cpu resource request amount parameter req_size_of_CPU of sign create_vm, resource pool sign Pool_ID (being used to represent the network element kind), priority parameters priority_value and the resource of VMM, memory request amount parameter req_size_of_Memory, hard disk request amount parameter req_size_of_disk etc.; The parameter of deletion virtual machine can comprise deletion VM sign delete_vm, resource pool Pool_ID, the interim network element .addr that will delete etc.
Network management system is carried out newly-built interim network element data configuration (such as for the I-CSCF among the IMS, disposing the address of HSS etc.) through interface 5.Interface 5 can adopt snmp protocol to realize.
Resource pool total load decision device periodically obtains each resource pool operating position of total average resource (like CPU, internal memory, hard disk etc.) in a period of time in the past from network management system, and whether decision applies for that the interim network element that asset creation is new and the quantity or the application of application resource discharge existing resource.Concrete, network management system is responsible for receiving the SNMP request of sending with treatment source pool total load decision device, and network management system can be used the snmpset order of SNMP to wait the parameter of operation is set, thereby can carry out dynamic monitoring and control to equipment operation.Because it is a lot of to influence the factor of network element self performance; The load collection of network management system can not be collected all information; Therefore; The embodiment of the invention is only to choose four each and every one key indexs that influence server performance in the general application: CPU usage, memory usage, magnetic disc i/o (Input/Output, input/output port) occupancy, network bandwidth occupation rate are that example is described.Network management system can adopt { Pool_ID, network element .addr, average_load_CPU to the information that resource pool total load decision device sends; Average_load_Memory, average_load_disk, the form of average_load_network}; Wherein, Pool_ID is the resource pool sign, and network element .addr is a network element address; Average_load_CPU is the CPU average load; Average_load_Memory is the internal memory average load, and average_load_disk is the disk average load, and average_load_network is the network average load.
Because dynamic state feedback mechanism itself also needs overhead, therefore can not all inquire about all requests of user to the loading condition of resource pool.The embodiment of the invention adopts whenever at regular intervals interval T to feed back, thereby makes server keep utilance preferably.
Based on system architecture shown in Figure 2, combine Fig. 3 to describe the flow process in expanding resource pond below respectively, and combine Fig. 4 to describe the flow process of reduction resource pool.
As shown in Figure 3, the resource pool resource that provides for the embodiment of the invention expands flow process, and this flow process is that example is described with the cpu resource overload of network element in the resource pool 1 and network element 2, and this flow process can may further comprise the steps:
Step 301, resource pool total load decision device obtain resource (like CPU, internal memory, the hard disk etc.) operating position of resource pool from network management system.
Concrete, resource pool load decision device is monitored the loading condition in the resource pool, as according to the cycle that is provided with in advance or after receiving the notice that last resource expands or reduction is accomplished, obtains the load information of resource pool from network management system.The load information of the resource pool that gets access to can include but not limited to CPU usage, memory usage, magnetic disc i/o occupancy, network bandwidth occupancy etc.Preferably, in order to reduce taking of channel that the load information acquisition process causes, can only select in the various load types one or more to add up, monitor or report.Load information can be real-time resources occupation rate, like real-time CPU usage, memory usage etc., also can be the mean value of the resources occupation rate in a period of time in the past, like the average occupancy of bandwidth in 5 seconds etc.
Step 302, resource pool total load decision device judge that according to the resource operating position of the resource pool that acquires { Pool_ID, there are scarce resource (like CPU) in network element 1.addr, network element 2.addr} to resource pool.
Concrete, resource pool total load decision device can use multiple existing mode to adjudicate whether to have scarce resource (promptly adjudicating the resource overload of which kind of type).As, resource pool total load decision device is according to the resource operating position that gets access to, and is excessive if judgement has at least a kind of resource to use, and judges that then overload appears in this resource pool.Can according to resource average service rate (or use amount) and respective threshold weigh resource use whether excessive; As; The mean value of the CPU usage of all network elements in resource pool all surpasses setting threshold (as 70%); Perhaps, CPU usage surpasses some, the then CPU overload of the network element in this resource pool of decidable above the network element of setting threshold.
In the embodiment of the invention, resource pool total load decision device is judged resource pool { Pool_ID, network element 1.addr, the CPU overload of network element 2.addr}.
Step 303, resource pool total load decision device notice VMM creates the interim network element virtual machine of this network element, and notice VMM resource requirement situation.
Concrete; The basic percentage that each physical machine disposes the various resources (like CPU, internal memory, hard disk) to virtual machine can be set in VMM in advance; Like CPU (15%), internal memory (10%), hard disk (5%); And for its configuration scarce resource percentage, like CPU (25%), internal memory (15%), hard disk (10%).Because the physical machine that VMM possibly manage different performance, for the physical machine of different performance, the value possibility that the value of basic percentage and scarce resource increase percentage is different, but performance should be approaching.Internal memory basis percentage such as the physical machine of 4G internal memory is 10%, and corresponding 8G just is 5% with the internal memory basis percentage of the physical machine of operating frequency internal memory.
When resource pool total load decision device finds that there is scarce resource (supposition CPU is a scarce resource) in certain resource pool; And when decision notice VMM Resources allocation generates interim network element virtual machine; Can notify VMM to call this network element virtual machine image and CPU is a scarce resource; Then VMM is the utilization rate restriction that CPU capacity that virtual machine distributed satisfies 15%+25% (being basic percentage+percentage of CPU); The memory size of being distributed satisfies 10% utilization rate restriction, and the hard-disk capacity of distribution satisfies 5% utilization rate restriction, by that analogy.
Step 304, VMM is the virtual machine Resources allocation, creates new interim network element virtual machine, and the IP address of interim network element virtual machine is returned to resource pool total load decision device.
Step 305, resource pool total load decision device is issued network management system with interim network element IP address.
Step 306, network management system is interim network element configuration data necessary according to the IP address, as disposing application identities etc.
Step 307, the scheduler tabulation of the balanced control point of network management system notification payload.
Preferably, network management system can be made as the priority that increases interim network element newly the highest, handle to attract all new requests to newly-increased interim network element, and for example, for P-CSCF and EA, be new registration message of initiating; For I-CSCF, be all new SIP dialog request messages; For S-CSCF, be the registration message of being transmitted by I-CSCF first in the registration process.
Further, if it is the highest that the priority of the network element that increases newly is set, then this flow process also can comprise:
Step 308; Network management system is monitored the resource pool of interim dilatation; When the gap of newly-increased interim network element load and resource pool average load during less than the threshold value of setting in advance; Interim network element priority (as reducing priority) is upgraded at the balanced control point of network management system notification payload, to reply the load-balancing mechanism of normality.
Step 309, network management system will increase interim network element newly and add in the resource pool sign, promptly become { Pool_ID, network element 1.addr, network element 2.addr, interim network element 1.addr}.
Step 310, the interim dilatation of network management system notice resource pool total load decision device is accomplished, and can carry out follow-up policer operation.
In another embodiment of the present invention; Resource pool total load decision device judges that resource pool occurs under the situation of overload, also can be by resource pool total load decision device directly with Virtual NE to be created to the type notification of network element in the demand of various resources and the resource pool to VMM; VMM creates corresponding Virtual NE according to Virtual NE to be created to the demand and the NE type of various resources.For example, the NE type in the resource pool total load decision device notice VMM resource pool is a router-A, and it is 1G that Virtual NE to be created needs memory headroom, needs hard drive space 50G, needs network bandwidth 0.5Mb/s etc.
In another embodiment of the present invention, receive order and the physical resource of a plurality of establishment Virtual NE simultaneously when not enough to VMM, VMM can take following strategy:
In network management system is that resource pool is provided with priority, as in the resource pool sign, adding priority tag, promptly Pool_ID, and priority_value, network element 1.addr, network element 2.addr...}, wherein, priority_value representes the priority in respective resources pond.Resource pool total load decision device passes to VMM with priority_value when confirming to increase new interim network element.When VMM receives a plurality of establishment virtual machine orders and inadequate resource simultaneously, according to the high order of the first processing priority of priority_value value.If priority_value is identical, the then little order of priority treatment resource requirement.If priority_value is identical, and resource requirement is also identical, then selects at random to handle.
As shown in Figure 4, be the resource pool resource release flow that the embodiment of the invention provides, this flow process can comprise:
Step 401, resource pool total load decision device obtain resource (like CPU, internal memory, the hard disk etc.) operating position of resource pool from network management system.The concrete realization of this step can be with the step 301 in the flow process shown in Figure 3.
Step 402, resource pool total load decision device are judged resource pool { Pool_ID, network element 1.addr, network element 2.addr, interim network element 1.addr} generation underloading according to the resource operating position of the resource pool that acquires.
Concrete, resource pool total load decision device can use multiple existing mode to adjudicate whether the resource underloading is arranged.As, resource pool total load decision device if judge to have at least a kind of resource to use deficiency, judges then that underloading appears in this resource pool according to the resource operating position that gets access to.Can weigh resource according to resource average service rate (or use amount) and respective threshold and whether use underloading; As; The mean value of the CPU usage of all network elements in resource pool all is lower than setting threshold (as 30%); Perhaps, the CPU usage network element that is lower than setting threshold surpasses some, then the CPU underloading of the network element in this resource pool of decidable.
In the embodiment of the invention, resource pool total load decision device is judged resource pool { Pool_ID, network element 1.addr, network element 2.addr, the CPU underloading of interim network element 1.addr}.
Step 403, resource pool total load decision device notice network management system generation underloading.
Concrete; Resource pool total load decision device can be chosen at least one Virtual NE according to preset rules in this resource pool; As can preferentially choose the lower Virtual NE of priority, also can preferentially choose the Virtual NE or the last Virtual NE that adds that add resource pool at first.
Step 404, the balanced control point of network management system notification payload is made as interim network element (the being interim network element 1) priority in the resource pool sign minimum, thereby makes this network element no longer accept new request.
Concrete; Network management system discharges the resource of using in the Virtual NE of choosing, and the priority that can the balanced control point of notification payload this Virtual NE be set like, network management system is lower than other network elements (perhaps directly setting no longer receives newly assigned business); Like this; The Virtual NE of choosing will no longer have new service access, and along with ongoing business in this Virtual NE finishes gradually, the occupied resource of this Virtual NE will be by discharging gradually.
Step 405, network management system monitoring are found should be interim during network element non-processor task, and interim network element 1 is deleted at notification payload equilibrium control point from address list.Interim network element 1 also can initiatively report the own Processing tasks that in a period of time, do not had.
Concrete; When load in the Virtual NE of choosing is zero (being the non-processor task); The balanced control point of network management system notification payload and this Virtual NE of VMM deletion, network management system can be deleted the list item of this Virtual NE from address list at the balanced control point of notification payload, and notice VMM closes the virtual machine of this Virtual NE; Delete the associated documents of this virtual machine, and the shared physical resource of this Virtual NE is set up in release.
Step 406, network management system should be deleted from the resource pool sign by interim network element, and resource pool reverts to { Pool_ID, network element 1.addr, network element 2.addr}.
Step 407, network management system notice resource pool total load decision device can be deleted the virtual machine that the IP address is interim network element 1.addr.
Step 408, it is the deletion of the virtual machine of interim network element 1.addr that resource pool total load decision device notice VMM carries out the IP address.
Step 409, it is the deletion of the virtual machine of interim network element 1.addr that VMM carries out the IP address, discharges resource.Further, can also notify resource pool total load decision device unloading Virtual NE process to finish, resource pool total load decision device can carry out follow-up monitoring, continues to judge according to the load information of resource pool whether this resource pool low carrying or/and overload occur.
For fear of frequent increase or deletion Virtual NE and influence the stability of a system, can adopt following solution among above-mentioned each embodiment of the present invention:
When resource pool total load decision device do not receive completion that network management system is sent increase interim network element notice or accomplish discharge resource notification before, resource pool total load decision device does not carry out the acts of determination of following one-period to application corresponding layer resource pool; Otherwise,, when the average service rate of the scarce resource (like CPU) of all network elements all is higher than a certain threshold value (as 70%) in the resource pool, judge the resource pool overload when in some resource pool total load decision device sense cycle.Main resource and threshold value are determined by the network element concrete function.Resource pool transships concrete decision method and is not defined as said method.
When resource pool total load decision device do not receive completion that VMM sends increase interim network element notice or accomplish discharge resource notification before, resource pool total load decision device does not carry out the acts of determination of following one-period to corresponding resource pool; Otherwise, in some application layer resource pool total load decision device sense cycle, when the average service rate of all network element resources in the application layer resource pool (like CPU, internal memory, hard disk) all is lower than a certain threshold value (as 30%), judged the application layer resource pool low year.Main resource and threshold value are determined by the network element concrete function.The low carrier body decision method of application layer resource pool is not defined as said method.
Can find out that through above flow process the above embodiment of the present invention adopts Virtual NE as interim network element, under the situation of resource pool overload, Virtual NE is joined in the resource pool on the one hand, has realized the dilatation of resource pool; On the other hand, occur unloading the Virtual NE in the resource pool under the low situation of carrying at resource pool, thereby realized the reduction of resource pool.Can realize resource pool resource distribution flexibly such as prior art.Certainly, arbitrary product of the embodiment of embodiment of the present invention might not reach above-described all advantages simultaneously.
Based on identical technical conceive, the embodiment of the invention also provides a kind of device for allocating resources, and this device is the resource pool total load decision device in the foregoing description.
The resource pool resource that this device can be applied in the foregoing description expands in the flow process, and as shown in Figure 5, this device can comprise:
Preferably, said acquisition module 510 specifically is used for, and obtains the load information of the resource of the specified type in the load information of said resource pool;
Said judge module 520 specifically is used for, and when the use amount of the resource of judging the specified type that said acquisition module 510 gets access to surpasses the overload decision threshold, judges that then overload appears in said resource pool.
Preferably, said resource distribution module 530 also is used for, and after creating Virtual NE, the priority of indicating said network management system that the Virtual NE of establishment is set is higher than the priority of other network elements in the resource pool.
Preferably, said resource distribution module 530 also is used for, and when the difference of the load of the load of said Virtual NE and its place resource pool during less than predetermined threshold value, reduces the priority of said Virtual NE.
Preferably, said judge module 520 also is used for, and the load information of the resource pool that gets access to according to said acquisition module 510 judges whether said resource pool underloading occurs;
Said notification module 540 also is used for, and when said judge module 520 judged that underloading appears in said resource pool, the notice network management system unloaded the Virtual NE in the said resource pool.
Preferably; Said notification module 540 specifically is used for; The notice network management system reduces the priority of Virtual NE in the said resource pool, and notifies network management system when the load on the Virtual NE of judging reduction priority is zero, the said Virtual NE of unloading from said resource pool.
Preferably, said acquisition module 510 specifically is used for, and once is that said resource pool is created after Virtual NE or the completion of unloading Virtual NE on confirming, obtains the load information of resource pool.
Preferably, said resource distribution module 530 also is used for, and when needs are designated as a plurality of resource pools and create Virtual NE, is designated as said a plurality of resource pool according to the priority of resource pool and creates Virtual NE.
The embodiment of the invention also provides another kind of device for allocating resources (resource pool total load decision device), can be applied to resource pool resource release flow in the foregoing description, and as shown in Figure 6, this device can comprise:
Preferably, said acquisition module 610 specifically is used for, and obtains the load information of the resource of the specified type in the load information of said resource pool;
Said judge module 620 specifically is used for, and when the use amount of the resource of judging the specified type that said acquisition module 610 gets access to is lower than the underloading decision threshold, judges that then underloading appears in said resource pool.
Preferably; Said notification module 630 specifically is used for; When said judge module 620 judged that underloading appears in said resource pool, the notice network management system was according to the priority of Virtual NE or add the sequencing of said resource pool, from said resource pool, selects Virtual NE to unload.
Preferably; Said notification module 630 specifically is used for; When said judge module 620 judges that underloading appears in said resource pool; The notice network management system reduces the priority of Virtual NE in the said resource pool, and the load of notice network management system on judging the Virtual NE that reduces priority be when being zero, the said Virtual NE of unloading from said resource pool.
The embodiment of the invention also provides a kind of device for allocating resources, can realize the function of above-mentioned two kinds of devices simultaneously, and promptly this device not only can be realized resource pool resource extended function but also can realize resource pool resource contractile function.This device can comprise acquisition module, judge module, resource distribution module and notification module; Wherein judge module not only can have been realized the function of judge module 520 but also can realize the function of judge module 620, and notification module not only can have been realized the function of notification module 540 but also can realize the function of notification module 630.
Through the device that the embodiment of the invention provided, adopt Virtual NE as interim network element, under the situation of resource pool overload, Virtual NE is joined in the resource pool on the one hand, realized the dilatation of resource pool; On the other hand, occur unloading the Virtual NE in the resource pool under the low situation of carrying at resource pool, thereby realized the reduction of resource pool.Can realize resource pool resource distribution flexibly such as prior art.Certainly, arbitrary product of the embodiment of embodiment of the present invention might not reach above-described all advantages simultaneously.
It will be appreciated by those skilled in the art that the module in the device among the embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from present embodiment.The module of the foregoing description can be merged into a module, also can further split into a plurality of submodules.
The invention described above embodiment sequence number is not represented the quality of embodiment just to description.
Through the description of above execution mode, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding; The part that technical scheme of the present invention contributes to prior art in essence in other words can be come out with the embodied of software product; This computer software product is stored in the storage medium, comprise some instructions with so that a station terminal equipment (can be mobile phone, personal computer; Server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, these improvement and retouching also should be looked protection scope of the present invention.
Claims (25)
1. a resource allocation method is characterized in that, comprising:
Obtain the load information of resource pool, and judge according to the load information of said resource pool whether said resource pool overload occurs;
If overload appears in said resource pool, then join in the said resource pool according to the need of load establishment Virtual NE of said resource pool and with the Virtual NE of creating.
2. the method for claim 1 is characterized in that, said load information according to resource pool judges that whether said resource pool overload occurs, is specially:
Obtain the load information of the resource of the specified type in the load information of said resource pool;
If the use amount of the resource of said specified type surpasses the overload decision threshold, judge that then overload appears in said resource pool.
3. the method for claim 1 is characterized in that, said establishment Virtual NE is specially:
Give virtual machine monitor VMM with the type notification of the resource that overload occurs;
Said VMM confirms the demand of the type resource according to the preset basic use amount and overload recruitment of the type resource, and creates Virtual NE according to the demand of the type resource of determining.
4. the method for claim 1 is characterized in that, also comprise behind the establishment Virtual NE: the priority that the Virtual NE of establishment is set is higher than the priority of other network elements in the resource pool.
5. method as claimed in claim 4 is characterized in that, also comprises:
When the difference of the load of the load of said Virtual NE and its place resource pool during, reduce the priority of said Virtual NE less than predetermined threshold value.
6. the method for claim 1 is characterized in that, also comprises:
When judging that according to the load information of resource pool underloading appears in said resource pool, unload the Virtual NE in the said resource pool.
7. method as claimed in claim 6 is characterized in that, the Virtual NE in the said unloading resource pool is specially:
Reduce the priority of Virtual NE in the said resource pool, when the load on the Virtual NE that reduces priority is zero, the said Virtual NE of unloading from said resource pool.
8. like each described method of claim 1-7, it is characterized in that, the said load information that obtains resource pool, and according to the load information of said resource pool judge said resource pool whether occur the overload, be specially:
Once be that said resource pool is created after Virtual NE or the completion of unloading Virtual NE on confirming, obtain the load information of resource pool, and judge according to the load information of said resource pool whether said resource pool overload occurs.
9. like each described method of claim 1-7, it is characterized in that, when needs are created Virtual NE for a plurality of resource pools, is that said a plurality of resource pool is created Virtual NE according to the priority of resource pool.
10. a resource allocation method is characterized in that, comprising:
Obtain the load information of resource pool, and judge according to the load information of said resource pool whether said resource pool underloading occurs;
If underloading appears in said resource pool, then unload the Virtual NE in the said resource pool.
11. method as claimed in claim 10 is characterized in that, said load information according to resource pool judges that whether said resource pool underloading occurs, is specially:
Obtain the load information of the resource of the specified type in the load information of said resource pool;
If the use amount of the resource of said specified type is lower than the underloading decision threshold, judge that then underloading appears in said resource pool.
12. method as claimed in claim 10 is characterized in that, if underloading appears in said resource pool, then according to the priority of Virtual NE or add the sequencing of said resource pool, from said resource pool, selects Virtual NE to unload.
13., it is characterized in that the Virtual NE in the said unloading resource pool is specially like each described method of claim 10-12:
Reduce the priority of Virtual NE in the said resource pool, when the load on the Virtual NE that reduces priority is zero, the said Virtual NE of unloading from said resource pool.
14. a device for allocating resources is characterized in that, comprising:
Acquisition module is used to obtain the load information of resource pool;
Judge module, the load information of the said resource pool that is used for getting access to according to said acquisition module judge whether said resource pool overload occurs;
The resource distribution module is used for when said judge module judges that overload appears in said resource pool, according to the need of load indication VMM establishment Virtual NE of said resource pool;
Notification module is used for notifying network management system that the Virtual NE of creating is joined said resource pool.
15. device as claimed in claim 14 is characterized in that, said acquisition module specifically is used for, and obtains the load information of the resource of the specified type in the load information of said resource pool;
Said judge module specifically is used for, and when the use amount of the resource of judging the specified type that said acquisition module gets access to surpasses the overload decision threshold, judges that then overload appears in said resource pool.
16. device as claimed in claim 14 is characterized in that, said resource distribution module also is used for, and after creating Virtual NE, the priority of indicating said network management system that the Virtual NE of establishment is set is higher than the priority of other network elements in the resource pool.
17. device as claimed in claim 16 is characterized in that, said resource distribution module also is used for, and when the difference of the load of the load of said Virtual NE and its place resource pool during less than predetermined threshold value, reduces the priority of said Virtual NE.
18. device as claimed in claim 14 is characterized in that, said judge module also is used for, and the load information of the resource pool that gets access to according to said acquisition module judges whether said resource pool underloading occurs;
Said notification module also is used for, and when said judge module judged that underloading appears in said resource pool, the notice network management system unloaded the Virtual NE in the said resource pool.
19. device as claimed in claim 18; It is characterized in that; Said notification module specifically is used for; The notice network management system reduces the priority of Virtual NE in the said resource pool, and notifies network management system when the load on the Virtual NE of judging reduction priority is zero, the said Virtual NE of unloading from said resource pool.
20., it is characterized in that said acquisition module specifically is used for like each described device of claim 14-19, once be that said resource pool is created after Virtual NE or the completion of unloading Virtual NE on confirming, obtain the load information of resource pool.
21., it is characterized in that said resource distribution module also is used for like each described device of claim 14-19, when needs are designated as a plurality of resource pools and create Virtual NE, be designated as said a plurality of resource pool according to the priority of resource pool and create Virtual NE.
22. a device for allocating resources is characterized in that, comprising:
Acquisition module is used to obtain the load information of resource pool;
Judge module, the load information of the resource pool that is used for getting access to according to said acquisition module judges whether said resource pool underloading occurs;
Notification module is used for when said judge module judges that underloading appears in said resource pool, and the notice network management system unloads the Virtual NE in the said resource pool.
23. device as claimed in claim 22 is characterized in that, said acquisition module specifically is used for, and obtains the load information of the resource of the specified type in the load information of said resource pool;
Said judge module specifically is used for, and when the use amount of the resource of judging the specified type that said acquisition module gets access to is lower than the underloading decision threshold, judges that then underloading appears in said resource pool.
24. like claim 22 or 23 described devices; It is characterized in that; Said notification module specifically is used for; When said judge module judged that underloading appears in said resource pool, the notice network management system was according to the priority of Virtual NE or add the sequencing of said resource pool, from said resource pool, selects Virtual NE to unload.
25. like claim 22 or 23 described devices; It is characterized in that; Said notification module specifically is used for, and when said judge module judged that underloading appears in said resource pool, the notice network management system reduced the priority of Virtual NE in the said resource pool; And the load of notice network management system on judge reducing the Virtual NE of priority be when being zero, the said Virtual NE of unloading from said resource pool.
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