CN107615872A

CN107615872A - A kind of method, apparatus and system for discharging connection

Info

Publication number: CN107615872A
Application number: CN201580080506.0A
Authority: CN
Inventors: 季莉; 周彦
Original assignee: Huawei Technologies Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2015-06-12
Filing date: 2015-06-12
Publication date: 2018-01-19
Anticipated expiration: 2035-06-12
Also published as: WO2016197395A1; CN107615872B

Abstract

The embodiment of the present invention provides a kind of method, apparatus and system for discharging connection, is related to communication technical field, enables to node reasonably to discharge the established connection between other nodes.This method includes：First node determines the section point for allowing release to connect from multiple section points, and deletes the information of the section point for allowing release to connect preserved in first node, wherein, the plurality of section point is the node that connection has been established with first node.This method is applied in NFV systems.

Description

A kind of method, apparatus and system of release connection

Technical field

The present invention relates to field of communication technology more particularly to a kind of method, apparatus and system of release connection.

Background technique

With the rapid development of virtualization technology, on general physical equipment, realize that network function virtualization (English: network function virtualization, abbreviation: NFV) system of the function of dedicated network element device in network is gradually valued by people.

There are network function virtualization scheduling node (English: network function virtualization orchestrator in NFV system, abbreviation: NFVO), virtual machine infrastructure management node (English: virtualized infrastructure manager, abbreviation: VIM), virtual network function management node (English: virtualized network function manager, VNFM) and virtual network function (English: virtualized network function, abbreviation: VNF) etc. functional nodes.Wherein, VIM is responsible for virtual resource needed for managing VNF, and VNFM is responsible for managing VNF, and NFVO is responsible for being scheduled all VIM resource managed.When the VNF that the VIM that VNFM needs to request NFVO specified is VNFM management distributes resource, if not setting up connection between the VNFM and the VIM also, which need to first establish the connection between the VIM, to be that the VNF distributes resource by the VIM.

However, above-mentioned VNFM request NFVO specified VIM is during the VNF of VNFM management distributes resource, since the number for the VIM that can establish connection with the VNFM is limited, therefore when reaching the threshold value for the number of VIM that can establish connection with the VNFM with the number of the VNFM VIM for establishing connection, if establishing connection between the VIM that the VNFM is not specified with NFVO also, the VNFM then be will lead to due to not idle connection resource, and the connection between VIM that NFVO is specified can not be established, so that the VIM that the VNFM can not request NFVO specified is that the VNF distributes resource.

Summary of the invention

The present invention provides the method, apparatus and system of a kind of release connection, so that node passes through Reasonably established connection between release and other nodes, to guarantee that there is the node idle connection resource to establish new connection.

In order to achieve the above objectives, the present invention adopts the following technical scheme:

In a first aspect, the present invention provides a kind of method of release connection, comprising:

First node is determined from multiple second nodes to be allowed to discharge the second node connected, and the multiple second node is the node that connection is established with the first node；

The first node deletes the information for allowing to discharge the second node connected saved in the first node.

In the first possible implementation of the first aspect, the first node is determined from multiple second nodes allows to discharge the second node connected, comprising:

The first node receives the first Connection Release notification message that management node is sent, and the mark for allowing to discharge the second node connected is carried in the first Connection Release notification message:

The first node determines the second node for allowing to discharge connection according to the mark for allowing to discharge the second node connected.

The possible implementation of with reference to first aspect the first, in the second possible implementation, before the first node receives the first Connection Release notification message that management node is sent, the method also includes:

The first node sends connection release request message to the management node, and the connection release request message is used to that the management node to be requested to determine the second node for allowing to discharge connection.

In conjunction with the first of first aspect above-mentioned or first aspect possible implementation to first aspect second of possible implementation in any implementation, in the third possible implementation,

The first node is virtual network function management node VNFM, and the multiple second node is multiple virtual machine infrastructure management node VIM；Alternatively,

The first node is VIM, and the multiple second node is multiple VNFM.

In conjunction with above-mentioned in a first aspect, in the fourth possible implementation, the first node is VNFM, and the multiple second node is multiple VIM,

It is described that the second node for discharging connection is allowed to be not have the VIM of resource management relationship with the VNFM in the multiple VIM if existing in the multiple VIM does not have the VIM of resource management relationship with the VNFM；Alternatively,

If the second node for allowing to discharge connection is the first VIM for meeting first condition there is no not having the VIM of resource management relationship with the VNFM in the multiple VIM,

Wherein, the first condition by the first VIM in the multiple VIM be the VNFM manage virtual network function VNF distribution resource, allow by another VIM in the multiple VIM be the VNF distribute.

In conjunction with the possible implementation of the first of first aspect above-mentioned or first aspect to first aspect the 4th kind of possible implementation in any implementation, in a fifth possible implementation, the first node is after determining the second node for allowing release connection in multiple second nodes, before the first node deletes the information for allowing to discharge the second node connected saved in the first node, the method also includes:

The first node sends the second Connection Release notification message to the second node for allowing to discharge connection, the mark of the first node is carried in the second Connection Release notification message, the second Connection Release notification message is used to notify the second node for allowing to discharge connection, the information for the first node that the deletion mark for allowing to discharge the first node saved in the second node connected indicates.

Second aspect, the present invention provide a kind of method of release connection, comprising:

Management node is determined from multiple second nodes to be allowed to discharge the second node connected, and the multiple second node is the node that connection is established with first node；

The management node sends the first Connection Release notification message to the first node, the mark for allowing to discharge the second node connected is carried in the first Connection Release notification message, the first Connection Release notification message deletes the information for allowing to discharge the second node connected saved in the first node for notifying the first node.

In the first possible implementation of the second aspect,

It is described that the second node for discharging connection is allowed to be not have the second node of resource management relationship with the first node in the multiple second node if existing in the multiple second node does not have the second node of resource management relationship with the first node.

In conjunction with the possible implementation of the first of second aspect above-mentioned or second aspect, in the second possible implementation, before the management node allows to discharge the second node connected from determination in multiple second nodes, the method also includes:

The management node receives the connection release request message that the first node is sent, and the connection release request message is used to that the management node to be requested to determine the second node for allowing to discharge connection；

The management node is determined from multiple second nodes to be allowed to discharge the second node connected, comprising:

The management node determines the second node for allowing to discharge connection according to the connection release request message from the multiple second node.

In conjunction with the first of second aspect above-mentioned or second aspect possible implementation to second aspect second of possible implementation in any implementation, in the third possible implementation,

The first node is VNFM, and the multiple second node is multiple VIM；Alternatively,

The first node is VIM, and the multiple second node is multiple VNFM.

In conjunction with second of possible implementation of second aspect, in the fourth possible implementation, the first node is VNFM, and the multiple second node is multiple VIM,

In conjunction with second of possible implementation of second aspect, in a fifth possible implementation, the first node is VIM, and the multiple second node is multiple VNFM,

If the second node for allowing to discharge connection is the first VNFM for meeting second condition there is no not having the VNFM of resource management relationship with the VIM in the multiple VNFM,

Wherein, the second condition by the VIM be the first VNFM in the multiple VNFM manage VNF distribution resource, allow by being built with the first VNFM Another VIM of vertical connection is VNF distribution.

In conjunction with the possible implementation of the first of second aspect above-mentioned or second aspect to second aspect the 5th kind of possible implementation in any implementation, in a sixth possible implementation, the management node from multiple second nodes determine allow discharge connect second node after, the method also includes:

The management node sends the second Connection Release notification message to the second node for allowing to discharge connection, the mark of the first node is carried in the second Connection Release notification message, the second Connection Release notification message is used to notify the second node for allowing to discharge connection, the information for the first node that the deletion mark for allowing to discharge the first node saved in the second node connected indicates.

The third aspect, the present invention provide a kind of device of release connection, comprising:

Determination unit allows to discharge the second node connected for determining from multiple second nodes, and the multiple second node is the node that connection is established with first node；

Unit is deleted, the information for allowing to discharge the second node connected determined for deleting the determination unit saved in the first node.

In the first possible implementation of the third aspect,

The determination unit carries the mark for allowing to discharge the second node connected specifically for receiving the first Connection Release notification message of management node transmission in the first Connection Release notification message；

The determination unit, specifically for determining the second node for allowing to discharge connection according to the mark for allowing to discharge the second node connected.

In conjunction with the first possible implementation of the third aspect, in the second possible implementation, the device of the release connection further includes transmission unit,

The transmission unit, for before the first Connection Release notification message that the determination unit receives that management node is sent, connection release request message is sent to the management node, the connection release request message is used to that the management node to be requested to determine the second node for allowing to discharge connection.

In conjunction with the first of the third aspect above-mentioned or the third aspect possible implementation to the third aspect second of possible implementation in any implementation, the third can In the implementation of energy,

The first node is VIM, and the multiple second node is multiple VNFM.

In conjunction with the third aspect above-mentioned, in the fourth possible implementation, the first node is VNFM, and the multiple second node is multiple VIM,

If existing in the multiple VIM does not have the VIM of resource management relationship with the VNFM, the second node for allowing release to connect that the determination unit determines is not have the VIM of resource management relationship with the VNFM in the multiple VIM；Alternatively,

If the second node for allowing to discharge connection that the determination unit determines is the first VIM for meeting first condition there is no not having the VIM of resource management relationship with the VNFM in the multiple VIM,

Wherein, the first condition by the first VIM in the multiple VIM be the VNFM manage VNF distribution resource, allow by another VIM in the multiple VIM be the VNF distribute.

In conjunction with any implementation of second of possible implementation into the 4th kind of possible implementation of the third aspect of the third aspect above-mentioned, in a fifth possible implementation,

The transmission unit, it is also used in the determination unit after determining the second node for allowing release connection in multiple second nodes, before the information for allowing to discharge the second node connected saved in first node described in the deletion element deletion, to the second node second Connection Release notification message of transmission that allows to discharge and connect, the mark of the first node is carried in the second Connection Release notification message, the second Connection Release notification message is used to notify the second node for allowing to discharge connection, delete the information of the first node of the mark instruction for allowing to discharge the first node saved in the second node connected.

Fourth aspect, the present invention provide a kind of device of release connection, comprising:

Transmission unit, for sending the first Connection Release notification message to the first node, the described of determination unit determination is carried in the first Connection Release notification message to allow to release The mark of the second node of connection is put, the first Connection Release notification message deletes the information for allowing to discharge the second node connected saved in the first node for notifying the first node.

In the first possible implementation of the fourth aspect,

If existing in the multiple second node does not have the second node of resource management relationship with the first node, the second node for allowing release to connect that the determination unit determines is not have the second node of resource management relationship with the first node in the multiple second node.

In conjunction with the possible implementation of the first of fourth aspect above-mentioned or fourth aspect, in the second possible implementation, the device of the release connection further includes receiving unit,

The receiving unit, for the determination unit from multiple second nodes determine allow discharge connect second node before, the connection release request message that the first node is sent is received, the connection release request message is used to that the determination unit to be requested to determine the second node for allowing to discharge connection；

The determination unit, is specifically used for according to the received connection release request message of the receiving unit, and determining from multiple second nodes allows to discharge the second node connected.

In conjunction with the first of fourth aspect above-mentioned or fourth aspect possible implementation to fourth aspect second of possible implementation in any implementation, in the third possible implementation,

The first node is VIM, and the multiple second node is multiple VNFM.

In conjunction with second of possible implementation of fourth aspect, in the fourth possible implementation, the first node is VNFM, and the multiple second node is multiple VIM,

In conjunction with second of possible implementation of fourth aspect, in a fifth possible implementation, the first node is VIM, and the multiple second node is multiple VNFM,

If the second node for allowing to discharge connection that the determination unit determines is the first VNFM for meeting second condition there is no not having the VNFM of resource management relationship with the VIM in the multiple VNFM,

Wherein, the second condition by the VIM be the first VNFM in the multiple VNFM manage VNF distribution resource, allow by established with the first VNFM another VIM of connection be the VNF distribute.

In conjunction with the possible implementation of the first of fourth aspect above-mentioned or fourth aspect to fourth aspect the 5th kind of possible implementation in any implementation, in a sixth possible implementation,

The transmission unit, it is also used in the determination unit after determining the second node for allowing release connection in multiple second nodes, to the second node second Connection Release notification message of transmission that allows to discharge and connect, the mark of the first node is carried in the second Connection Release notification message, the second Connection Release notification message is used to notify the second node for allowing to discharge connection, the information for the first node that the deletion mark for allowing to discharge the first node saved in the second node connected indicates.

5th aspect, the present invention provide a kind of device of release connection, comprising:

Processor allows to discharge the second node connected for determining from multiple second nodes, and the multiple second node is the node that connection is established with first node；

The processor is also used to delete the information for allowing to discharge the second node connected saved in the first node.

In the first possible implementation of the 5th aspect,

The processor carries the mark for allowing to discharge the second node connected specifically for receiving the first Connection Release notification message of management node transmission in the first Connection Release notification message；

The processor, specifically for determining the second node for allowing to discharge connection according to the mark for allowing to discharge the second node connected.

In conjunction with the first possible implementation of the 5th aspect, in second of possible realization In mode,

The processor, it is also used to before receiving the first Connection Release notification message that management node is sent, connection release request message is sent to the management node, the connection release request message is used to that the management node to be requested to determine the second node for allowing to discharge connection.

In conjunction with it is above-mentioned 5th aspect or the 5th aspect the first possible implementation to the 5th aspect second of possible implementation in any implementation, in the third possible implementation,

The first node is VIM, and the multiple second node is multiple VNFM.

In conjunction with the 5th aspect above-mentioned, in the fourth possible implementation, the first node is VNFM, and the multiple second node is multiple VIM,

If existing in the multiple VIM does not have the VIM of resource management relationship with the VNFM, the second node for allowing release to connect that the processor determines is not have the VIM of resource management relationship with the VNFM in the multiple VIM；Alternatively,

If the second node for allowing to discharge connection that the processor determines is the first VIM for meeting first condition there is no not having the VIM of resource management relationship with the VNFM in the multiple VIM,

In conjunction with it is above-mentioned 5th aspect or the 5th aspect the first possible implementation to the 5th aspect the 4th kind of possible implementation in any implementation, in a fifth possible implementation,

The processor, it is also used to after determining the second node for allowing release connection in multiple second nodes, before the information for deleting the second node for allowing to discharge connection saved in the first node, to the second node second Connection Release notification message of transmission that allows to discharge and connect, the first node is carried in the second Connection Release notification message Mark, the second Connection Release notification message are used to notify the second node for allowing to discharge connection, the information for the first node that the deletion mark for allowing to discharge the first node saved in the second node connected indicates.

6th aspect, the present invention provide a kind of device of release connection, comprising:

The processor, it is also used to send the first Connection Release notification message to the first node, the mark for allowing to discharge the second node connected is carried in the first Connection Release notification message, the first Connection Release notification message deletes the information for allowing to discharge the second node connected saved in the first node for notifying the first node.

In the first possible implementation of the 6th aspect,

If existing in the multiple second node does not have the second node of resource management relationship with the first node, the second node for allowing release to connect that the processor determines is not have the second node of resource management relationship with the first node in the multiple second node.

In conjunction with the first possible implementation of the 6th aspect above-mentioned or the 6th aspect, in the second possible implementation,

The processor, it is also used in the determination unit before determining the second node for allowing release connection in multiple second nodes, the connection release request message that the first node is sent is received, the connection release request message is used to that the determination unit to be requested to determine the second node for allowing to discharge connection；

The processor, is specifically used for according to the connection release request message, and determining from multiple second nodes allows to discharge the second node connected.

In conjunction with it is above-mentioned 6th aspect or the 6th aspect the first possible implementation to the 6th aspect second of possible implementation in any implementation, in the third possible implementation, the first node is VNFM, and the multiple second node is multiple VIM；Alternatively,

The first node is VIM, and the multiple second node is multiple VNFM.

In conjunction with second of possible implementation of the 6th aspect, in the 4th kind of possible realization In mode, the first node is VNFM, and the multiple second node is multiple VIM,

In conjunction with second of possible implementation of the 6th aspect, in a fifth possible implementation, the first node is VIM, and the multiple second node is multiple VNFM,

If the second node for allowing to discharge connection that the processor determines is the first VNFM for meeting second condition there is no not having the VNFM of resource management relationship with the VIM in the multiple VNFM,

In conjunction with it is above-mentioned 6th aspect or the 6th aspect the first possible implementation to the 6th aspect the 5th kind of possible implementation in any implementation, in a sixth possible implementation,

The processor, it is also used to after determining the second node for allowing release connection in multiple second nodes, to the second node second Connection Release notification message of transmission that allows to discharge and connect, the mark of the first node is carried in the second Connection Release notification message, the second Connection Release notification message is used to notify the second node for allowing to discharge connection, the information for the first node that the deletion mark for allowing to discharge the first node saved in the second node connected indicates.

7th aspect, the present invention provide a kind of communication system, comprising:

The device of release connection as described in any possible implementation of the above-mentioned third aspect or the third aspect, and the device of the release connection as described in any possible implementation of above-mentioned fourth aspect or fourth aspect；Alternatively, the device of the release connection as described in any possible implementation in terms of the above-mentioned 5th or in terms of the 5th, and such as the above-mentioned 6th The device of release connection described in any possible implementation of aspect or the 6th aspect.

The present invention provides the method, apparatus and system of a kind of release connection, determining from multiple second nodes including first node allows to discharge the second node connected, and delete the information for allowing to discharge the second node connected saved in first node, wherein, multiple second node is the node that connection is established with first node.The method of the release connection provided through the invention, first node can discharge and allow to discharge the connection between the second node connected, to save the connection resource of first node, so that there is first node idle connection resource to establish the new connection between other second nodes, so that first node can be communicated with other second nodes.

Detailed description of the invention

In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, the drawings to be used in the description of the embodiments or prior art will be briefly described below, apparently, drawings in the following description are only some embodiments of the invention, rather than whole embodiments of the invention.

Fig. 1 is a kind of architecture diagram of existing NFV system；

Fig. 2 is a kind of flow chart one of the method for release connection provided in an embodiment of the present invention；

Fig. 3 is a kind of flowchart 2 of the method for release connection provided in an embodiment of the present invention；

Fig. 4 is a kind of interaction figure one of the method for release connection provided in an embodiment of the present invention；

Fig. 5 is a kind of interaction figure two of the method for release connection provided in an embodiment of the present invention；

Fig. 6 is a kind of interaction figure three of the method for release connection provided in an embodiment of the present invention；

Fig. 7 is a kind of interaction figure four of the method for release connection provided in an embodiment of the present invention；

Fig. 8 is a kind of interaction figure five of the method for release connection provided in an embodiment of the present invention；

Fig. 9 is a kind of interaction figure six of the method for release connection provided in an embodiment of the present invention；

Figure 10 is a kind of interaction figure seven of the method for release connection provided in an embodiment of the present invention；

Figure 11 is a kind of structural schematic diagram one of the device of release connection provided in an embodiment of the present invention；

Figure 12 is a kind of structural schematic diagram two of the device of release connection provided in an embodiment of the present invention；

Figure 13 is a kind of structural representation of the device of release connection provided in an embodiment of the present invention Figure three；

Figure 14 is a kind of structural schematic diagram four of the device of release connection provided in an embodiment of the present invention；

Figure 15 is a kind of hardware structural diagram one of the device of release connection provided in an embodiment of the present invention；

Figure 16 is a kind of hardware structural diagram two of the device of release connection provided in an embodiment of the present invention；

Figure 17 is a kind of block diagram of communication system provided in an embodiment of the present invention.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.

As shown in Figure 1, being a kind of architecture diagram of NFV system.The NFV system includes: NFVO, VNFM, VIM, Operation Support System (English: operations support system, abbreviation: OSS) or business support system (English: business support system, abbreviation: BSS), NE management node (English: element manager, abbreviation: EM), VNF node, virtual network function infrastructure (English: network function virtualization infrastructure, abbreviation: NFVI) etc. functional nodes, wherein, OSS/BSS, the user interface of either OSS/BSS is properly termed as net Network management node (English: network manager, abbreviation: NM).

In NFV system, NFVO, VNFM and VIM constitute management layout (English: NFV management and orchestration, abbreviation: NFV-MANO) domain of NFV system, wherein NFVO is referred to as network function virtualization scheduler.

Wherein, NFVO can operate the VIM in NFV system, manage and coordinate, i.e. NFVO is responsible for dispatching the resource that all VIM are managed in the NFV system.NFVO in NFV system all VIM and VNFM be connected.

VIM is the administration portal of infrastructure and resource, provides resource management for VNF, refers specifically to provide NFVI resource management for VNF, including providing infrastructures the functions such as configuring maintenance, monitoring resource, alarm, performance management of related hardware and virtualization resource for VNF.

VNFM is responsible for the life cycle management of VNF, realizes the life cycle management to VNF especially by NFVO application resource or release resource, including is instantiated to VNF, dilatation/capacity reducing, inquiry, update and termination etc..

In the prior art, when the VNF that the VIM that VNFM needs to request NFVO specified is VNFM management distributes resource, if not setting up connection between the VNFM and the VIM also, which need to first establish the connection between the VIM, to be that the VNF distributes resource by the VIM.

However, the number for the VIM that can establish connection with VNFM is limited in NFV system, the number for the VNFM that connection can be established with VIM is also limited.

So, during the VNF that the specified VIM of some VNFM request NFVO is VNFM management distributes resource, on the one hand, when reaching threshold value with the number of the VNFM VIM for establishing connection, if establishing connection between the VIM that the VNFM is not specified with NFVO also, the VNFM then be will lead to due to not idle connection resource, and connection can not be established between the VIM specified with the NFVO, so that the VIM that the VNFM can not request the NFVO specified is that the VNF distributes resource.

On the other hand, when reaching threshold value with the number of some VIM VNFM for establishing connection, if the VIM does not also establish connection between the new VNFM to its requests resource allocation, the VIM then be will lead to due to not idle connection resource, and connection can not be established between the VNFM, even if to which the surplus resources of the VIM can satisfy the resource that the VNFM is VNF request, which also can not distribute resource for the VNF.

The method, apparatus and system of a kind of release connection provided by the invention, so that node establishes new connection by reasonably established connection between release and other nodes to guarantee the node with idle connection resource.

It should be noted that, in present example, any one functional node in above-mentioned NFV system may be realized by an entity device, it may also be realized jointly by multiple entity devices, multiple functional nodes in NFV system may be realized by different entity devices respectively, it is also possible to all be realized by the same entity device.It is understood that any one functional node in NFV system all may be a logic functional block in entity device, it is also possible to a logic functional block being made of multiple entity devices.

Therefore, in following embodiment of the present invention, each step in method provided in an embodiment of the present invention can be executed by an entity device, can be cooperated each step executed in method provided in an embodiment of the present invention by multiple entity devices, be not construed as limiting to this present invention.

Further, method in order to more clearly introduce a kind of release connection provided by the invention, hereinafter it is illustrated using logic functional block (functional node i.e. in NFV system) as executing subject, it will be understood by those skilled in the art that logic functional block is needed in specific implementation dependent on the hardware resource on the entity device where it.

In embodiments of the present invention, NFV system can be applied to long term evolution (English: long term evolution, abbreviation: LTE) in communication system, also it can be applied in the evolution communication systems of LTE, in LTE-A (full name in English: long term evolution advanced) system, can also be medium applied to the 3G (Third Generation) Moblies such as WCDMA (English: 3rd-Generation, abbreviation: 3G) system, the present invention is with no restriction.

Embodiment one

The embodiment of the present invention provides a kind of method of release connection, as shown in Fig. 2, this method comprises:

S101, first node are determined from multiple second nodes to be allowed to discharge the second node connected, and multiple second node is the node that connection is established with first node.

It should be noted that in embodiments of the present invention, first node can be VNFM, or VIM.Specifically, multiple second node is multiple VIM, and multiple VIM has established connection with the VNFM when first node is VNFM；When first node is VIM, multiple second node is multiple VNFM, and multiple VNFM has established connection with the VIM.

Further, first node can be according to the instruction of management node, and determining from multiple second nodes allows to discharge the second node connected.Such as, when management node determines in multiple second node, after the second node for allowing to discharge connection, the mark that this can be allowed to discharge the second node connected by management node carries in the first Connection Release notification message, and it is sent to first node, to which first node is after receiving the first Connection Release notification message, it can allow to discharge the mark of the second node connected according to this, determining from multiple second node allows to discharge the second node connected.

Optionally, when first node is specially VNFM, and multiple second nodes are specially VIM, VNFM, which can also be determined voluntarily from multiple VIM, to be allowed to discharge the VIM connected.

In embodiments of the present invention, the above-mentioned second node for allowing to discharge connection can not have the second node of resource management relationship, or with first node in multiple second node to meet the second node of preset condition in multiple second node.Wherein, which can be configured according to actual network operation demand, so that first node can select suitable second node, to discharge the connection between the second node.

S102, first node delete the information that this saved in first node allows to discharge the second node of connection.

Wherein, allowing the information for discharging the second node connected includes permitting the mark and link information being permitted to discharge the second node of connection.This allows the link information for discharging the second node connected at least to may include that this allows to discharge the information such as the IP address of the second node connected, uniform resource locator (English: uniform resource locator, abbreviation: URL), user name, authentication password.

It should be noted that is, characterization first node, which is successfully released, allows to discharge the connection between the second node connected this after the information for the second node for allowing release to connect that first node deletes its preservation.

The embodiment of the present invention provides a kind of method of release connection, determining from multiple second nodes including first node allows to discharge the second node connected, and delete the information for allowing to discharge the second node connected saved in first node, wherein, multiple second node is the node that connection is established with first node.Pass through this method, first node can discharge and allow to discharge the connection between the second node connected, to save the connection resource of first node, so that there is first node idle connection resource to establish the new connection between other second nodes, so that first node can be communicated with other second nodes.

The embodiment of the present invention provides a kind of method of release connection, as shown in figure 3, this method comprises:

S201, management node are determined from multiple second nodes to be allowed to discharge the second node connected, and multiple second node is the node that connection is established with first node.

Wherein, first node can be VNFM, or VIM.Specifically, when the When one node is VNFM, multiple second node is multiple VIM, and multiple VIM has established connection with the VNFM；When first node is VIM, multiple second node is multiple VNFM, and multiple VNFM has established connection with the VIM.

In embodiments of the present invention, management node can be the NFVO in the NFV system where first node and multiple second node, or has the function of the other function node of NFVO in the NFV system, i.e. management node can be the functional node that can dispatch the resource that all VIM are managed in the NFV system, with no restriction to this present invention.

Management node can select do not have the second node of resource management relationship with first node directly from multiple second node, as the second node for allowing to discharge connection.Management node can also select the second node for meeting preset condition from multiple second node, as the second node for allowing to discharge connection.Wherein, which can be configured according to actual network operation demand, so that management node can select suitable second node as the second node for allowing to discharge connection according to the preset condition.

S202, management node send the first Connection Release notification message to first node, this is carried in first Connection Release notification message allows to discharge the mark of the second node connected, for first Connection Release notification message for notifying first node, deleting this saved in first node allows to discharge the information of the second node connected.

After management node is determined from multiple second node to be allowed to discharge the second node connected, this can be allowed to discharge the mark of the second node connected by management node, it carries in the first Connection Release notification message, and it is sent to first node, so that after first node receives the first Connection Release notification message, deleting this saved in first node allows to discharge the information of the second node connected, i.e., notice first node discharges automatically and this allows to discharge the connection between the second node connected.

The embodiment of the present invention provides a kind of method of release connection, determining from multiple second nodes including management node allows to discharge the second node connected, and the first Connection Release notification message is sent to first node, the mark for allowing to discharge the second node connected is carried in the first Connection Release notification message, the first Connection Release notification message is for notifying first node, the information for allowing to discharge the second node connected saved in first node is deleted, multiple second node is the node that connection is established with first node.

Pass through this method, management node can select suitable second node in the multiple second nodes for establishing connection with first node, and the connection between the release of notice first node and the second node in time, to save the connection resource of first node, so that there is first node idle connection resource to establish the new connection between other second nodes, so that first node can be communicated with other second nodes.

Embodiment two

The embodiment of the present invention provide it is a kind of release connection method, can be used in plurality of application scenes, below will in following three kinds of possible application scenarios, to it is provided in an embodiment of the present invention it is a kind of release connection method illustrate.

In the first possible application scenarios, release connection process is initiated by management node.Wherein, management node can be the NFVO in NFV system, or have the function of the other function node of NFVO, i.e., management node can be the functional node that can dispatch the resource that all VIM are managed in the NFV system, of the invention with no restriction to this.

In management node, it is provided with resource mapping table, the connection etc. between the resource bid situation of each VNFM in NFV system, the resource allocation conditions and VNFM and VIM of each VIM is had recorded in the resource mapping table.For example, establishing connection between some VNFM and which VIM, these VIM are respectively stock number and resource type of the VNF distribution that the VNFM is managed etc..To which management node can be by inquiring the resource mapping table, know that each VNFM in NFV system is established between which VIM respectively to connect, each VIM is established between which VNFM connect respectively, and is had built up between the VIM of connection and VNFM either with or without resource management relationship etc..

It should be noted that having built up has resource management relationship between some VNFM of connection and some VIM, refer to that the VIM is that at least one VNF of VNFM management has reserved or be assigned with resource；Having built up does not have resource management relationship between some VNFM of connection and some VIM, referring to the VIM not is that any one VNF that the VNFM is managed reserves or distribute resource.

It is understood that the VNFM that can establish connection with VIM is also limited since the number for the VIM that can establish connection with VNFM is limited, therefore, if having built up does not have resource management relationship between some VNFM of connection and some VIM, this can be discharged Connection between VNFM and the VIM, to save the connection resource of the VNFM He the VIM.So in the first possible application scenarios, when management node passes through the inquiry to the resource mapping table, it was found that being established in multiple second nodes of connection with some first node, when in the presence of not having the second node of resource management relationship with the first node, management node need to initiate the connection release process.

In the first possible application scenarios, first node can be VNFM, or VIM.Specifically, multiple second node is multiple VIM, and multiple VIM has established connection with the VNFM when first node is VNFM；When first node is VIM, multiple second node is multiple VNFM, and multiple VNFM has established connection with the VIM.

Further, in the first possible mode of the first possible application scenarios, as shown in figure 4, this method may include:

S301, management node are determined from multiple second nodes to be allowed to discharge the second node connected, and multiple second node is the node that connection is established with first node.

Specifically, what management node determined allows to discharge the second node connected in the first possible application scenarios, there is no the second node of resource management relationship with the first node in specially multiple second node.

It can be understood that, when management node is by inquiring the resource mapping table, it was found that existing in multiple second node, when not having the second node of resource management relationship with the first node, management node can determine the first node and not have the connection between the second node of resource management relationship to allow to be released with the first node.

It should be noted that in embodiments of the present invention, management node can be during carrying out life cycle management to VNF, and judging, which whether there is in multiple second nodes, does not have the second node of resource management relationship with first node.

Illustratively, for example, when needing to carry out dilatation to some VNF, management node is by inquiring the resource mapping table, to select suitable VIM to distribute resource for the VNF.In this course, when management node inquires the resource mapping table, management node can to manage the VNF VNFM between establish multiple VIM of connection and inquire, determine in multiple VIM with the presence or absence of there is no resource management pass with the VNFM The VIM of system.

Optionally, management node can also periodically inquire the resource mapping table.Specifically, if first node is VNFM, second node is VIM, then management node can periodically inquire the relevant information of each VNFM in the NFV system in the resource mapping table, judgement has been established between some VNFM in multiple VIM of connection, if there is the VIM for not having resource management relationship with the VNFM；If first node is VIM, second node is VNFM, then management node can periodically inquire the relevant information of each VIM in the NFV system in the resource mapping table, judgement is established in multiple VNFM of connection with some VIM, with the presence or absence of there is no the VNFM of resource management relationship with the VIM, at this time.

S302, management node send the first Connection Release notification message to first node, this is carried in the first Connection Release notification message allows to discharge the mark of the second node connected.

In embodiments of the present invention, after management node is determined from multiple second nodes to be allowed to discharge the second node connected, management node can notify that first node can discharge and this allows to discharge the connection between the second node connected, i.e., the first Connection Release notification message is for notifying first node to delete the information of the second node for allowing release to connect of its preservation.

After S303, first node receive the first Connection Release notification message, allow to discharge the mark of the second node connected according to this, determines that this allows to discharge the second node connected.

It can be understood that, after first node receives the first Connection Release notification message, according to the mark for allowing to discharge the second node connected carried in the first Connection Release notification message, first node is that can determine that it allows to discharge the connection between the second node connected with this and allows to be released, i.e. first node determination can delete its second node information for allowing release to connect saved.

S304, first node allow to discharge the second node connected to this and send the second Connection Release notification message, and the mark of first node is carried in the second Connection Release notification message.

In embodiments of the present invention, after first node determination can delete the second node information for allowing release to connect of its preservation, first node is firstly the need of the connection between the second node for allowing to discharge connection by this, allow to discharge the second node connected to this and send the second Connection Release notification message, to notify this allows to discharge the second node connected also to delete it Save the information of the first node.

S305, first node delete the information that this saved in first node allows to discharge the second node of connection.

Wherein, this allows the information for discharging the second node connected identical as the meaning of information of second node for allowing to discharge connection in embodiment as shown in Figure 2, is not repeated herein.

So far, first node successfully releases first node and this and allows to discharge the connection between the second node connected.

After S306, the second node for allowing release to connect receive the second Connection Release notification message, first node is determined according to the mark of first node.

It is understood that according to the mark of the first node carried in the second Connection Release notification message, that is, can determine that the connection of itself and the first node allows to be released after this allows the second node for discharging connection to receive the second Connection Release notification message.

S307, the second node for allowing release to connect delete the information of the first node for allowing to save in the second node for discharging connection.

Wherein, the information of first node includes permitting the mark and link information of the first node.The link information of the first node at least may include the information such as the IP address of the first node, uniform resource locator (English: uniform resource locator, abbreviation: URL), user name, authentication password.

So far, this allows the second node for discharging connection also successfully to release the connection between first node.

It should be noted that the execution sequence embodiment of the present invention between above-mentioned S305 and above-mentioned S306 and S307 is with no restriction.

In second of possible mode of the first possible application scenarios, as shown in figure 5, this method may include:

S401, management node are determined from multiple second nodes to be allowed to discharge the second node connected, and multiple second node is the node that connection is established with first node.

S402, management node send the first Connection Release notification message to first node, this is carried in the first Connection Release notification message allows to discharge the mark of the second node connected.

After S403, first node receive the first Connection Release notification message, according to the permission The mark for discharging the second node of connection determines that this allows to discharge the second node connected.

Wherein, the specific implementation of above-mentioned S401-S403, identical as the specific implementation of S301-S303 in embodiment as shown in Figure 4, the specific implementation of above-mentioned S401-S403 may refer to the associated description in embodiment as shown in Figure 4, and details are not described herein again.

S404, first node delete the information that this saved in first node allows to discharge the second node of connection.

So far, first node, which is successfully released, allows to discharge the connection between the second node connected with this.

S405, management node allow to discharge the second node connected to this and send the second Connection Release notification message, and the mark of first node is carried in the second Connection Release notification message.

It should be noted that, in second of possible implementation of the first possible application scenarios, after management node is determined from multiple second nodes to be allowed to discharge the second node connected, management node directly can allow to discharge the second node connected to this and send the second Connection Release notification message, to notify this allows to discharge the second node connected also to delete its information for saving the first node.

After S406, the second node for allowing release to connect receive the second Connection Release notification message, first node is determined according to the mark of first node.

S407, the second node for allowing release to connect delete the information of the first node for allowing to save in the second node for discharging connection.

Wherein, the specific implementation of above-mentioned S406-S407, identical as the specific implementation of S306-S307 in embodiment as shown in Figure 4, the specific implementation of above-mentioned S406-S407 may refer to the associated description in embodiment as shown in Figure 4, and details are not described herein again.

It should be noted that the successive execution sequence embodiment of the present invention of above-mentioned S402-S404 and above-mentioned S405-S407 is not specifically limited.

Optionally, in embodiments of the present invention, after first node and the second node for allowing release to connect successfully release the connection between them, the first node and the second node for allowing to discharge connection can also be to management node transmission confirmation messages, so that management section Point determines that the connection between the first node and the second node for allowing release to connect has been released successfully, and then management node can be updated the resource mapping table.

In the first possible application scenarios, the method of the release connection provided through the embodiment of the present invention, management node can be in determining the multiple second nodes for having established connection with first node, after the second node for not having resource management relationship with first node, first node is notified in time and should not have the second node of resource management relationship with first node, it discharges first node and should and should not there is no the connection between the second node of resource management relationship with first node, it avoids first node and should and should not there is no the connection between the second node of resource management relationship with first node, it holds over first node and should not there is no the connection resource of the second node of resource management relationship with first node, to save the first node and should not there is no the connection resource of the second node of resource management relationship with first node.

In second of possible application scenarios, release process is initiated the connection by VNFM.In NFV system, since the number for the VIM that can establish connection with VNFM is limited, when the number of the determining VIM established a connection of VNFM reaches threshold value, VNFM needs to initiate the connection release process.So, in second of possible application scenarios, first node VNFM, multiple second nodes are VIM, and multiple VIM is the VIM that connection has been established with the VNFM.

Specifically, in the first possible mode of the second possible application scenarios, as shown in fig. 6, this method may include:

S501, VNFM determine that the number of multiple VIM reaches predetermined threshold value.

Wherein, predetermined threshold value can be the maximum number that the VIM of connection can be established with the VNFM, or be less than the threshold value of the maximum number according to one of the setting of the demand of network operation in practice.

Specifically, in embodiments of the present invention, VNFM can periodically judge whether the number of the VIM established a connection reaches predetermined threshold value.VNFM can also judge whether the number of the VIM established a connection reaches predetermined threshold value after the connection between each foundation and new VIM.

S502, VNFM send connection release request message to management node, which is used to that management node to be requested to determine to allow to discharge the VIM connected.

Specifically, VNFM can send connection release request message to management node when VNFM judges that the number of multiple VIM reaches threshold value, allow to discharge the VIM connected to request management node to determine from multiple VIM.

According to the connection release request message, determining from multiple VIM allows to discharge the VIM connected for S503, management node.

In embodiments of the present invention, after management node receives the connection release request message of VNFM transmission, management node, which determines, to be needed from the multiple VIM for establishing connection with the VNFM, and determining allows to discharge the VIM connected.

Specifically, management node can first pass through the resource mapping table inquired and be arranged in the management node, judging, which whether there is in multiple VIM, does not have the VIM of resource management relationship with the VNFM.

If management node, which determines to exist in multiple VIM, does not have the VIM of resource management relationship with the VNFM, management node will not have the VIM of resource management relationship to be determined as allowing to discharge the VIM connected with the VNFM in multiple VIM.

If management node determines that the first VIM for meeting first condition in multiple VIM is determined as allowing to discharge the VIM connected by management node there is no not having the VIM of resource management relationship with the VNFM in multiple VIM.

Wherein, the first condition by the first VIM in multiple VIM be the VNFM manage VNF distribution resource, allow by another VIM in multiple VIM be the VNF distribute.

It is determined as allowing to discharge the VIM connected to better illustrate management node for the first VIM for meeting first condition in multiple VIM, will be illustratively illustrated by taking VIM1, VIM2 and VIM3 as an example below.

Assuming that, multiple VIM that connection has been established with VNFM include VIM1, VIM2 and VIM3, when management node determines that there is no when not having the VIM of resource management relationship with the VNFM in VIM1, VIM2 and VIM3, management node at least can be by the following two kinds mode, and determining from VIM1, VIM2 and VIM3 allows to discharge the VIM connected.

Mode one, management node obtain the information of the surplus resources of VIM1, VIM2 and VIM3 and the information of the resource for the VNFM VNF distribution managed respectively.

Wherein, the information of the surplus resources of VIM is including at least the surplus yield of the VIM and the type of surplus resources.The information of the resource for the VNF distribution that VIM is managed for the VNFM includes at least, and VIM is that stock number and the VIM for the VNF distribution that the VNFM is managed are the type of the VNF that the VNFM the is managed resource distributed.

Illustratively, the information of the surplus resources of VIM1 are as follows: the VM of 2 type-As, the VM of 1 B type；VIM1 is that the information of the resource of VNFM distribution includes: the VM of 1 type-A.

The information of the surplus resources of VIM2 are as follows: the VM of 1 type-A, the VM of 2 C types；VIM2 is that the information of the resource of VNFM distribution includes: the VM of 2 C types.

The information of the surplus resources of VIM3 are as follows: the VM of 2 type-As, the VM of 2 C types；VIM3 is that the information of the resource of VNFM distribution includes: the VM of 2 B types.

Specifically, management node can obtain information and the VIM1 of the surplus resources of VIM1 directly from resource mapping table as the information of the resource of VNFM distribution by taking VIM1 as an example.

Management node can also obtain the information of the surplus resources of VIM1 by way of inquiring to VIM1.Specifically, management node sends surplus resources query messages to VIM1, after VIM1 receives the surplus resources query messages, the information carrying of the surplus resources of VIM1 can be sent to management node in the response message, so that management node obtains the information of the surplus resources of VIM1 according to the response message.

Further, after management node gets the information of the surplus resources of VIM1, VIM2 and VIM3 and the information for the resource of the VNFM VNF distribution managed, the information of resource according to the information of the surplus resources of VIM1, VIM2 and VIM3 and for the VNFM VNF distribution managed, judges in VIM1, VIM2 and VIM3 with the presence or absence of the first VIM for meeting first condition.

Specifically, VIM1 can be first the information of the resource of the VNFM VNF distribution managed by management node, it is compared respectively with the information of the surplus resources of VIM2 and VIM3, if the residual resource information in VIM2 and VIM3 there are at least one VIM can satisfy VIM1 as the information of the resource of the VNFM VNF distribution managed, management node determines that VIM1 is the first VIM for meeting first condition.

For example, VIM1 is assigned with 1 type-A for the VNFM VNF1 managed VM, due to including the VM of 1 type-A in the surplus resources of VIM2, it include the VM of 2 type-As in the surplus resources of VIM3, therefore, the information of the surplus resources of VIM2 and VIM3 can meet the information for the resource that VIM1 is VNF1 distribution, that is VIM1 is the resource of VNF1 distribution, can be VNF1 distribution by VIM2 or VIM3.To which management node can determine that VIM1 is the first VIM for meeting first condition.

Further, management node use it is above-mentioned judge VIM1 whether for meet first condition the first VIM mode, VIM2 and VIM3 are judged one by one, and determine that VIM2 is also the first VIM for meeting first condition, that is the resource that VIM2 distributes for the VNFM VNF2 managed and VNF3 can be that VNF2 and VNF3 is distributed by VIM3.

It should be noted that, if setting need to only determine that one allows to discharge the VIM connected in management node, then after management node determines that VIM1 is a VIM, then VIM1 directly can be determined as allowing to discharge the VIM connected by management node, without further judging VIM2 and VIM3；Or when management node judges VIM1, VIM2 and VIM3 one by one, after determining that VIM1 and VIM2 is the first VIM, management node can randomly choose one as the VIM for allowing to discharge connection in VIM1 or VIM2, the VIM that can also select the data transmission quality between one and the VNFM poor in VIM1 or VIM3 is as allowing to discharge the VIM connected, and the comparison present invention is with no restriction.

If setting can determine multiple VIM for allowing to discharge connection in management node, then since VIM3 is in the case where can be VNF1 distribution by VIM1 is the resource that VNF1 is distributed, it can also be the resource that VNF2 and VNF3 distribution is VNF2 by VIM2 and VNF3 is distributed, therefore, VIM1 and VIM2 can be determined as allowing to discharge the VIM connected by management node.

It is understood that if VIM3 cannot distribute the resource of the VNF distribution managed by VIM1 and VIM2 for the VNFM simultaneously, management node can select in VIM1 and VIM2 one as the VIM for allowing release connection.

Mode two, in order to guarantee the data transmission quality between VIM and VNFM, a screening conditions can also be set in management node.Management node can first selection meets the VIM of the screening conditions from VIM1, VIM2 and VIM3, and then judges that this meets whether the VIM of screening conditions is the first VIM for meeting first condition.

Wherein, screening conditions can include but is not limited to: the least VIM of stock number distributed for the VNF that the VNFM is managed, one or more conditions in the maximum VIM of time delay, highest VIM of failure rate etc..

Illustratively, it is assumed that the screening conditions being arranged in management node include the least VIM of stock number of the VNF distribution managed by VNFM.

Management node, which first passes through, inquires the resource mapping table, obtain VIM1, VIM2 and VIM3 respectively as the information of the resource of the VNFM VNF distribution managed, VIM1, VIM2 and VIM3 are compared by management node for the stock number of the VNFM VNF distribution managed, are determined as the least VIM of stock number for the VNF distribution that the VNFM is managed.

Such as, VIM1 is that VNF1 is assigned with 1 VM, and VIM2 is that VNF2 and VNF3 is respectively assigned with 1 VM, and VIM3 is assigned with 2 VM for the VNFM VNF4 managed, therefore, VIM1 by be in VIM1, VIM2 and VIM3 the VNFM manage VNF distribution the least VIM of stock number.

Further, management node obtains the residual resource information of VIM2 and VIM3, and according to the residual resource information of the information for the resource that VIM1 is VNF1 distribution and VIM2 and VIM3, judges whether VIM1 is the first VIM for meeting first condition.

Wherein, management node judges whether VIM1 is the mode for meeting the first VIM of first condition, judges whether VIM1 is to meet that the mode of the first VIM of first condition is identical, and details are not described herein again with management node in mode one.

It is understood that, if VIM1 is first node, management node is that can determine that VIM1 is to allow to discharge the VIM linked in mode two.If VIM1 is not first node, management node is that can determine not allowing to discharge the VIM linked in VIM1, VIM2 and VIM3, and then management node can be not responding to the connection release request message of VNFM transmission.

S504, management node send the first Connection Release notification message to VNFM, this is carried in the first Connection Release notification message allows to discharge the mark of the VIM connected.

After S505, VNFM receive the first Connection Release notification message, allow to discharge the mark of the VIM connected according to this, determines that this allows to discharge the VIM connected.

It is understood that after VNFM receives the first Connection Release notification message, according to What is carried in the first Connection Release notification message allows to discharge the mark of the VIM connected, it can determine that it allows to discharge the connection between the VIM connected with this and allows to be released, i.e. the information for the VIM for allowing release to connect that the first Connection Release notification message is used to that the VNFM to be notified to delete its preservation.

S506, VNFM allow to discharge the VIM connected to this and send the second Connection Release notification message, and the mark of the VNFM is carried in the second Connection Release notification message.

In embodiments of the present invention, after VNFM determination can delete the information of the VIM for allowing release to connect of its preservation, the VNFM is firstly the need of the connection between the VIM for allowing to discharge connection by this, allow to discharge the VIM connected to this and send the second Connection Release notification message, to notify this allows to discharge the VIM connected also to delete its information for saving the VNFM.

S507, VNFM, which delete this saved in the VNFM, allows to discharge the information of the VIM connected.

Wherein, this allows the information for discharging the VIM connected to include the mark and link information that allow to discharge the VIM connected, wherein includes that this allows to discharge the information such as IP address, URL, user name, the authentication password of VIM connected in link information.

So far, VNFM successfully releases the VNFM allows to discharge the connection of the VIM connected with this.

After S508, the VIM for allowing release to connect receive the second Connection Release notification message, which is determined according to the mark of the VNFM.

It can be understood that, after this allows the VIM for discharging connection to receive the second Connection Release notification message, according to the mark of the VNFM carried in the second Connection Release notification message, it can determine that its connection between the VNFM allows to be released, i.e. the information for allowing to discharge the VNFM that the VIM connected can delete its preservation.

S509, the VIM for allowing release to connect delete the information of the VNFM for allowing to save in the VIM for discharging connection.

Wherein, the information of the VNFM includes the mark and link information of the VNFM, and the link information of the VNFM includes the information such as the IP address of the VNFM, URL, user name, authentication password.

So far, this allows the VIM for discharging connection also successfully to release the connection between the VNFM.

It should be noted that executing sequence between above-mentioned S507 and above-mentioned S508 and S509, the embodiment of the present invention is with no restriction.

In second of possible mode of the second possible application scenarios, as shown in fig. 7, this method may include:

S601, VNFM determine that the number of multiple VIM reaches predetermined threshold value.

S602, VNFM send connection release request message to management node, which is used to that management node to be requested to determine to allow to discharge the VIM connected.

According to the connection release request message, determining from multiple VIM allows to discharge the VIM connected for S603, management node.

S604, management node send the first Connection Release notification message to VNFM, this is carried in the first Connection Release notification message allows to discharge the mark of the VIM connected.

After S605, VNFM receive the first Connection Release notification message, allow to discharge the mark of the VIM connected according to this, determines that this allows to discharge the VIM connected.

Specifically, the specific implementation of above-mentioned S601-S605, the specific implementation of S501-S505 is identical in embodiment as shown in FIG. 6, and the specific implementation of above-mentioned S601-S605 may refer to the associated description in embodiment as shown in Figure 6, and details are not described herein again.

S606, VNFM, which delete this saved in the VNFM, allows to discharge the information of the VIM connected.

So far, VNFM successfully releases the VNFM and this and allows to discharge the connection between the VIM connected.

S607, management node allow to discharge the VIM connected to this and send the second Connection Release notification message, and the mark of the VNFM is carried in the second Connection Release notification message.

It should be noted that, in second of possible implementation of second of possible application scenarios, after management node is determined from multiple VIM to be allowed to discharge the VIM connected, management node directly can allow to discharge the VIM connected to this and send the second Connection Release notification message, to notify this allows to discharge the VIM connected also to delete its information for saving the VNFM.

S608, the VIM for allowing release to connect receive the second Connection Release notification message Afterwards, which is determined according to the mark of the VNFM.

S609, the VIM for allowing release to connect delete the information of the VNFM for allowing to save in the VIM for discharging connection.

Wherein, the specific implementation of above-mentioned S608-S609, identical as the specific implementation of S508-S509 in embodiment as shown in Figure 4, the specific implementation of above-mentioned S608-S609 may refer to the associated description in embodiment as shown in Figure 6, and details are not described herein again.

It should be noted that the successive execution sequence embodiment of the present invention of above-mentioned S604-S606 and above-mentioned S607-S609 is not specifically limited.

Optionally, in embodiments of the present invention, after VNFM and the VIM for allowing release to connect successfully release the connection between them, the VNFM and the VIM for allowing to discharge connection can also send confirmation message to management node, so that management node determines that the connection between the VNFM and the VIM for allowing release to connect has been released successfully, and then management node can be updated the resource mapping table.

In second of possible application scenarios, the method of the release connection provided through the embodiment of the present invention, so that VNFM is after the number for determining the multiple VIM established a connection reaches predetermined threshold value, connection release request message is sent to management node in time, allows to discharge the VIM connected to request management node to determine from multiple VIM.After management node is determined from multiple VIM to be allowed to discharge the VIM connected, management node, which is notified that the VNFM, and the VIM for allowing release to connect discharges the VNFM and this allows to discharge the connection between the VIM connected, allow to discharge the connection resource of the VIM connected to save the VNFM and this, and then when the VNF that other VIM that the VNFM needs to request not establish a connection also are VNFM management distributes resource, the VNFM available free connection resource is come the connection established between other VIM, so that it is that the VNF distributes resource that the VNFM, which can request other VIM,.

In the third possible mode of the second possible application scenarios, VNFM, which can be determined voluntarily from multiple VIM, to be allowed to discharge the VIM connected.Specifically, as shown in figure 8, this method may include:

S701, VNFM determine that the number of multiple VIM reaches predetermined threshold value.

S702, VNFM are determined from multiple VIM to be allowed to discharge the VIM connected.

Specifically, record has the resource bid situation of the VNFM in VNFM, and situation is established in the connection between VIM, and therefore, VNFM, which can first judge to whether there is in multiple VIM, does not have the VIM of resource management relationship with it.

If VNFM, which determines to exist in multiple VIM, does not have the VIM of resource management relationship with it, VNFM will not have the VIM of resource management relationship to be determined as allowing to discharge the VIM connected with it.

If VNFM determines that there is no do not have the VIM of resource management relationship, VNFM to be determined as allowing to discharge the VIM connected by the first VIM for meeting first condition in multiple VIM with it in multiple VIM.

Specifically, the first VIM for meeting first condition in multiple VIM is determined as the specific embodiment for allowing to discharge the VIM connected by VNFM, it is similar with the specific embodiment of VIM that management node in embodiment as shown in Figure 6 is determined as the first VIM for meeting first condition in multiple VIM to allow to discharge connection, the first VIM for meeting first condition in multiple VIM is determined as allowing the specific embodiment for discharging the VIM connected that can participate in the associated description in embodiment as shown in Figure 6 by VNFM, and details are not described herein again.

It should be noted that the first VIM for meeting first condition in multiple VIM is determined as during allowing to discharge the VIM connected by VNFM, VNFM needs to obtain the information of the surplus resources of multiple VIM and the information of the resource for the VNFM VNF distribution managed.In embodiments of the present invention, there is the case where VNFM requests resource to multiple VIM due to recording in VNFM, VNFM can directly acquire multiple VIM of its preservation as the information of the resource of the VNFM VNF distribution managed.

Further, VNFM needs to obtain the residual resource information of multiple VIM by way of sending surplus resources query messages to multiple VIM.Specifically, VNFM is by sending surplus resources query messages to multiple VIM to obtain the surplus resources of multiple VIM The mode of information, identical in a manner of the residual resource information for obtaining VIM1 to VIM1 transmission surplus resources query messages as management node in embodiment as shown in FIG. 6, for details, reference can be made to the associated descriptions in embodiment as shown in Figure 6.

S703, VNFM allow to discharge the VIM connected to this and send the second Connection Release notification message, and the mark of the VNFM is carried in the second Connection Release notification message.

S704, VNFM, which delete this saved in the VNFM, allows to discharge the information of the VIM connected.

After S705, the VIM for allowing release to connect receive the second Connection Release notification message, which is determined according to the mark of the VNFM.

S706, the VIM for allowing release to connect delete the information of the VNFM for allowing to save in the VIM for discharging connection.

Specifically, the specific implementation of above-mentioned S703-S706, identical as the implementation of S506-S509 in embodiment as shown in Figure 6, the specific implementation of above-mentioned S703-S706 may refer to the associated description in embodiment as shown in Figure 6, and details are not described herein again.

In second of possible application scenarios, the method of the release connection provided through the embodiment of the present invention, so that VNFM is after the number for determining the multiple VIM established a connection reaches predetermined threshold value, automatically multiple VIM is judged, selection allows to discharge the VIM connected from multiple VIM, and discharge the connection between the VIM for allowing release to connect, to save the connection resource of the VNFM, and then when the VNF that other VIM that the VNFM needs to request not establish a connection also are VNFM management distributes resource, the VNFM available free connection resource is come the connection established between other VIM, so that it is that the VNF distributes resource that the VNFM, which can request other VIM,.

On the other hand, before connection between VNFM release and the VIM for allowing release to connect, also it is notified that this allows the VIM for discharging connection also to discharge the VNFM and this and allows to discharge the connection between the VIM connected, also saving this allows to discharge the connection resource of the VIM connected.

In the third possible application scenarios, release process is initiated the connection by VIM.In NFV system, since the number for the VNFM that can establish connection with VIM is limited, when the number of the determining VNFM established a connection of VIM reaches threshold value, Need to initiate the connection release process.So, in second of possible application scenarios, first node VIM, multiple second nodes are VNFM, and multiple VNFM is the VNFM that connection has been established with the VIM.

Specifically, in the first possible mode of the possible application scenarios of third, as shown in figure 9, this method may include:

S801, VIM determine that the number of multiple VNFM reaches predetermined threshold value.

Wherein, predetermined threshold value can be the maximum number that the VNFM of connection can be established with the VIM, or be less than the threshold value of the maximum number according to one that the demand of network operation in practice is configured.

Specifically, in embodiments of the present invention, VIM can periodically judge whether the number of the VNFM established a connection reaches predetermined threshold value.VIM can also judge whether the number of the VNFM established a connection reaches predetermined threshold value after the connection between each foundation and new VNFM.

S802, VIM send connection release request message to management node, which is used to that management node to be requested to determine to allow to discharge the VNFM connected.

Specifically, VIM can send connection release request message to management node when VIM judges that the number of multiple VNFM reaches threshold value, allow to discharge the VNFM connected to request management node to determine from multiple VNFM.

According to the connection release request message, determining from multiple VNFM allows to discharge the VNFM connected for S803, management node.

In embodiments of the present invention, after management node receives the connection release request message of VIM transmission, management node, which determines, to be needed from the multiple VNFM for establishing connection with the VIM, and determining allows to discharge the VNFM connected.

Specifically, management node can first pass through the resource mapping table inquired and be arranged in the management node, judging, which whether there is in multiple VNFM, does not have the VNFM of resource management relationship with the VIM.

If management node, which determines to exist in multiple VNFM, does not have the VNFM of resource management relationship with the VIM, management node will not have the VNFM of resource management relationship to be determined as allowing to discharge the VNFM connected with the VIM in multiple VNFM.

If management node determines that the first VNFM for meeting second condition in multiple VNFM is determined as allowing to discharge the VNFM connected by management node there is no not having the VNFM of resource management relationship with the VIM in multiple VNFM.

Wherein, which is resource of the VIM by the VNF distribution managed of the first VNFM in multiple VNFM, is allowed by establishing another VIM of connection with the first VNFM as VNF distribution.

It is determined as allowing to discharge the VNFM connected to better illustrate management node for the first VNFM for meeting second condition in multiple VNFM, will be illustratively illustrated by taking VIM4, VNFM1, VNFM2 and VNFM3 as an example below.

Assuming that, multiple VNFM that connection has been established with VIM4 include VNFM1, VNFM2 and VNFM3, when management node determines that there is no when not having the VNFM of resource management relationship with VIM4 in VNFM1, VNFM2 and VNFM3, management node can be by the following two kinds mode, and determining from VNFM1, VNFM2 and VNFM3 allows to discharge the VNFM connected.

Mode one, management node first determine whether VNFM1 is the first VNFM for meeting second condition, it is assumed that in addition to VIM4, VNFM1 is also established between VIM5 and VIM6 and connect.

Management node obtains the information of the information for the resource that the VNF that VIM4 is managed by VNFM1 is distributed and the surplus resources of VIM5 and VIM6.

Specifically, management node obtains the mode of the information for the resource that the VNF that VIM4 is managed by VNFM1 is distributed, it may refer in embodiment as shown in Figure 6, management node obtains the mode of the information for the resource that the VNF that VIM1 is managed by VNFM is distributed respectively；Management node obtains the mode of the information of the surplus resources of VIM5 and VIM6, may refer in embodiment as shown in Figure 6, management node obtains the mode of the information of the surplus resources of VIM1 respectively, and details are not described herein again.

Management node can be first by the information of the VIM4 VNF managed by VNFM1 the resource distributed, it is compared respectively with the information of the surplus resources of VIM5 and VIM6, if the residual resource information in VIM5 and VIM6 there are at least one VIM can satisfy the information for the resource that the VNF that VIM4 is managed by VNFM1 is distributed, management node determines VNFM1 For the first VNFM for meeting second condition.

Illustratively, it is assumed that the VNF5 that VIM4 is managed by VNFM1 is assigned with the VM of 1 type-A, includes the VM of 1 type-A in the surplus resources of VIM5, includes the VM of 2 type-As in the surplus resources of VIM6.Since the information of the surplus resources of VIM5 and VIM6 can meet the information for the resource that VIM4 is VNF5 distribution, that is VIM4 is the resource of VNF5 distribution, it can be VNF5 distribution by VIM5 or VIM6, therefore, management node can determine that VNFM1 is the first VNFM for meeting second condition.

Further, management node use it is above-mentioned judge VNFM1 whether for meet second condition the first VNFM mode, VNFM2 and VNFM3 are judged one by one, determine VIM4 by the resource of the VNFM2 VNF distribution managed, the VNF that can also be managed by establishing other VIM of connection with VNFM2 by VNFM2 is distributed, i.e., it is the first VNFM for meeting second condition that management node, which determines VNFM2 also,.

It should be noted that, when there is no when not having the VNFM of resource management relationship with the VIM in multiple VNFM, if being provided in management node need to only determine that one allows to discharge the VNFM connected, then after management node determines that VNFM1 is a VNFM, then VNFM1 directly can be determined as allowing to discharge the VNFM connected by management node, without further judging VNFM2 and VNFM3；Or when management node judges VNFM1, VNFM2 and VNFM3 one by one, after determining that VNFM1 and VNFM2 is the first VNFM, management node can randomly choose one as the VNFM for allowing to discharge connection in VNFM1 or VNFM2, can also be selected in VNFM1 or VNFM2 one with the data transmission quality of VIM4 it is poor as allow discharge connect VNFM, comparison the present invention with no restriction.

If multiple VNFM for allowing to discharge connection can be determined by being provided in management node, VNFM1 and VNFM2 can be determined as allowing to discharge the VNFM connected by management node.

Mode two, in order to guarantee the data transmission quality between VIM and VNFM, a screening conditions can also be set in management node.Management node can first selection meets the VNFM of the screening conditions from VNFM1, VNFM2 and VNFM3, and then judges that this meets whether the VNFM of screening conditions is the first VNFM for meeting second condition.

Wherein, screening conditions can include but is not limited to: occupy the least VNFM of stock number, one or more conditions in maximum VNFM of time delay etc..

For example, it is assumed that the screening conditions being arranged in management node include occupying the least VNFM of stock number.

Management node, which first passes through, inquires the resource mapping table, obtain the information that VIM4 is respectively the resource for the VNF distribution that VNFM1, VNFM2 and VNFM3 are managed, it determines the occupancy stock number of VNFM1, VNFM2 and VNFM3, that is, determines that VIM4 is respectively the stock number for the VNF distribution that VNFM1, VNFM2 and VNFM3 are managed.The occupancy stock number of VNFM1, VNFM2 and VNFM3 are compared by management node, are determined and are occupied the least VNFM of stock number.

For example, the VNF that VIM4 is managed by VNFM1 is assigned with 1 VM, the VNF managed by VNFM2 and VNFM3 is assigned with 2 VM, and therefore, management node determines VNFM1 to occupy the least VNFM of stock number.

Further, management node obtains the information that the surplus resources of VIM5 and VIM6 of connection have been established with VNFM1, and the information of the resource for the VNF distribution for managing VIM4 by VNFM1, it is compared respectively with the information of the surplus resources of VIM5 and VIM6, if the residual resource information in VIM5 and VIM6 there are at least one VIM can satisfy the information for the resource that the VNF that VIM4 is managed by VNFM1 is distributed, management node determines that VNFM1 is the first VNFM for meeting second condition.

It should be noted that if VNFM1 is the first VNFM for meeting second condition, then management node determines that VNFM1 is to allow to discharge the VNFM connected；If VNFM1 is not the first VNFM for meeting second condition, management node, which determines, does not allow to discharge the VNFM connected in VNFM1, VNFM2 and VNFM3, and management node can be not responding to the connection release request message of VIM4 transmission.

Further, in mode two, meet screening conditions VNFM may have it is multiple, multiple first VNFM are also likely to be present in multiple VNFM for meeting screening conditions, management node can be by multiple first VNFM as the VNFM for allowing to discharge connection, also the first VNFM can be randomly selected as allowing to discharge the VNFM connected, with no restriction to this embodiment of the present invention.

S804, management node send the first Connection Release notification message to VIM, this is carried in the first Connection Release notification message allows to discharge the mark of the VNFM connected.

In embodiments of the present invention, after management node is determined from multiple VNFM to be allowed to discharge the VNFM connected, management node can notify that VIM can discharge and this allows to discharge the connection between the VNFM connected, i.e., the first Connection Release notification message is for notifying the VIM to delete the information of the VNFM for allowing release to connect of its preservation.

After S805, VIM receive the first Connection Release notification message, allow to discharge the mark of the VNFM connected according to this, determines that this allows to discharge the VNFM connected.

It can be understood that, after VIM receives the first Connection Release notification message, according to the mark for allowing to discharge the VNFM connected carried in the first Connection Release notification message, it can determine that it allows to discharge the connection between the VNFM connected with this and allows to be released, i.e. VIM determination can delete the information for the VNFM for allowing release to connect that it is saved.

S806, VIM allow to discharge the VNFM connected to this and send the second Connection Release notification message, and the mark of the VIM is carried in the second Connection Release notification message.

In embodiments of the present invention, after VIM determination can delete the information of the VNFM for allowing release to connect of its preservation, the VIM is firstly the need of the connection between the VNFM for allowing to discharge connection by this, allow to discharge the VNFM connected to this and sends the second Connection Release notification message, to notify this to allow to discharge the VNFM connected, its information for saving the VIM is also deleted.

S807, VIM, which delete this saved in the VIM, allows to discharge the information of the VNFM connected.

So far, VIM successfully releases the VIM allows to discharge the connection of the VNFM connected with this.

After S808, the VNFM for allowing release to connect receive the second Connection Release notification message, which is determined according to the mark of the VIM.

It can be understood that, after this allows the VNFM for discharging connection to receive the second Connection Release notification message, according to the mark of the VIM carried in the second Connection Release notification message, it can determine that its connection between the VIM allows to be released, i.e. the information for allowing to discharge the VIM that the VNFM connected can delete its preservation.

S809, the VNFM for allowing release to connect delete the information of the VIM for allowing to save in the VNFM for discharging connection.

So far, this allows the VNFM for discharging connection also successfully to release the connection between the VIM.

It should be noted that executing sequence between above-mentioned S807 and above-mentioned S808 and S809, the embodiment of the present invention is with no restriction.

In second of possible mode of the possible application scenarios of third, as shown in Figure 10, this method may include:

S901, VIM determine that the number of multiple VNFM reaches predetermined threshold value.

S902, VIM send connection release request message to management node, which is used to that management node to be requested to determine to allow to discharge the VNFM connected.

According to the connection release request message, determining from multiple VNFM allows to discharge the VNFM connected for S903, management node.

S904, management node send the first Connection Release notification message to VIM, this is carried in the first Connection Release notification message allows to discharge the mark of the VNFM connected.

After S905, VIM receive the first Connection Release notification message, allow to discharge the mark of the VNFM connected according to this, determines that this allows to discharge the VNFM connected.

Specifically, the specific implementation of above-mentioned S901-S905, the specific implementation of S801-S805 is identical in embodiment as shown in Figure 9, and the specific implementation of above-mentioned S901-S905 may refer to the associated description in embodiment as shown in Figure 9, and details are not described herein again.

S906, VIM, which delete this saved in the VIM, allows to discharge the information of the VNFM connected.

S907, management node allow to discharge the VNFM connected to this and send the second Connection Release notification message, and the mark of the VIM is carried in the second Connection Release notification message.

It should be noted that, in second of possible implementation of the third possible application scenarios, after management node is determined from multiple VNFM to be allowed to discharge the VNFM connected, it is logical that management node directly can send the second Connection Release to the VNFM for allowing to discharge connection Message is known, to notify this allows to discharge the VNFM connected also to delete its information for saving the VIM.

After S908, the VNFM for allowing release to connect receive the second Connection Release notification message, which is determined according to the mark of the VIM.

S909, the VNFM for allowing release to connect delete the information of the VIM for allowing to save in the VNFM for discharging connection.

It should be noted that it should be noted that the successive execution sequence embodiment of the present invention of above-mentioned S904-S906 and above-mentioned S907-S909 is not specifically limited.

Optionally, in embodiments of the present invention, after VIM and the VNFM for allowing release to connect successfully release the connection between them, the VIM and the VNFM for allowing to discharge connection can also send confirmation message to management node, so that management node determines that the connection between the VIM and the VNFM for allowing release to connect has been released successfully, and then management node can be updated the resource mapping table.

In the third possible application scenarios, the method of the release connection provided through the embodiment of the present invention, so that VIM is after the number for determining the multiple VNFM established a connection reaches predetermined threshold value, connection release request message is sent to management node in time, allows to discharge the VNFM connected to request management node to determine from multiple VNFM.After management node is determined from multiple VNFM to be allowed to discharge the VNFM connected, management node, which is notified that the VIM, and the VNFM for allowing release to connect discharges the VIM and this allows to discharge the connection between the VNFM connected, allow to discharge the connection resource of the VNFM connected to save the VIM and this, and then other VNFM of connection ought not established with the VIM also, when the VIM being requested to distribute resource for the VNF that other VNFM are managed, the VIM available free connection resource is come the connection established between other VNFM, so that the VIM can distribute resource for the VNF.

The embodiment of the present invention provides a kind of method of release connection, determining from multiple second nodes including first node allows to discharge the second node connected, and delete the information for allowing to discharge the second node connected saved in first node, wherein multiple second node is The node of connection is established with first node.Pass through this method, first node discharges and allows to discharge the connection between the second node connected, to save the connection resource of first node, so that there is first node idle connection resource to establish the new connection between other second nodes, so that first node can be communicated with other second nodes.

Embodiment three

As shown in figure 11, the embodiment of the present invention provides a kind of device of release connection, the device of the release connection can be such as Fig. 2, or such as Fig. 4 to the entity apparatus of the first node as described in the examples as shown in the either figure in Figure 10, it is also possible to be able to carry out the entity apparatus where a logic functional block of the method flow that the first node is able to carry out in NFV system, the entity apparatus can be independently mounted in the entity apparatus of the first node, or an entity apparatus that can be communicated with the entity apparatus of the first node.The device can also be presented by way of chip, and the application program that can be realized the method flow that the first node is able to carry out is carried in the chip.

It is described release connection device may include:

Determination unit 10 allows to discharge the second node connected for determining from multiple second nodes, and the multiple second node is the node that connection is established with first node.

Unit 11 is deleted, the information for allowing to discharge the second node connected determined for deleting the determination unit 10 saved in the first node.

Optionally, the determination unit 10 carries the mark for allowing to discharge the second node connected specifically for receiving the first Connection Release notification message of management node transmission in the first Connection Release notification message.

The determination unit 10, specifically for determining the second node for allowing to discharge connection according to the mark for allowing to discharge the second node connected.

Optionally, in conjunction with Figure 11, as shown in figure 12, the device of the release connection further includes transmission unit 12.

The transmission unit 12, for before the first Connection Release notification message that the determination unit 10 receives that management node is sent, connection release request message is sent to the management node, the connection release request message is used to that the management node to be requested to determine the second node for allowing to discharge connection.

Optionally, the first node is VNFM, and the multiple second node is multiple VIM；Alternatively, the first node is VIM, the multiple second node is multiple VNFM.

Optionally, the first node is VNFM, and the multiple second node is multiple VIM.

If existing in the multiple VIM does not have the VIM of resource management relationship with the VNFM, the second node for allowing release to connect that the determination unit 10 determines is not have the VIM of resource management relationship with the VNFM in the multiple VIM.

Alternatively, if the second node for allowing to discharge connection that the determination unit 10 determines is the first VIM for meeting first condition there is no not having the VIM of resource management relationship with the VNFM in the multiple VIM.

Optionally, the transmission unit 12, it is also used in the determination unit 10 after determining the second node for allowing release connection in multiple second nodes, the deletion unit 11 is deleted before the information for allowing to discharge the second node connected saved in the first node, to the second node second Connection Release notification message of transmission that allows to discharge and connect, the mark of the first node is carried in the second Connection Release notification message, the second Connection Release notification message is used to notify the second node for allowing to discharge connection, delete the information of the first node of the mark instruction for allowing to discharge the first node saved in the second node connected.

The embodiment of the present invention provides a kind of device of release connection, can determine from multiple second nodes allows to discharge the second node connected, and delete the information for allowing to discharge the second node connected saved in first node, wherein, multiple second node is the node that connection is established with first node.The device provided through the embodiment of the present invention, first node can discharge and allow to discharge the connection between the second node connected, to save the connection resource of first node, so that there is first node idle connection resource to establish the new connection between other second nodes, so that first node can be communicated with other second nodes.

As shown in figure 13, the embodiment of the present invention provides a kind of device of release connection, the device of the release connection can be if Fig. 3 is to such as Fig. 7 or such as Fig. 9 to the entity apparatus of the management node as described in the examples as shown in the either figure in Figure 10, it is also possible to be able to carry out the entity apparatus where a logic functional block of the method flow that the management node is able to carry out in NFV system, the entity apparatus can be independently mounted in the entity apparatus of the management node, or an entity apparatus that can be communicated with the entity apparatus of the management node.The device can also be presented by way of chip, and the application program that can be realized the method flow that the management node is able to carry out is carried in the chip.

It is described release connection device may include:

Determination unit 20 allows to discharge the second node connected for determining from multiple second nodes, and the multiple second node is the node that connection is established with first node.

Transmission unit 21, for sending the first Connection Release notification message to the first node, the mark for allowing to discharge the second node connected that the determination unit 20 determines is carried in the first Connection Release notification message, the first Connection Release notification message is used to that the first node to be notified to delete the information for allowing to discharge the second node connected saved in the first node.

Optionally, if existing in the multiple second node does not have the second node of resource management relationship with the first node, the second node for allowing release to connect that the determination unit 20 determines is not have the second node of resource management relationship with the first node in the multiple second node.

Optionally, in conjunction with Figure 13, as shown in figure 14, the device of the release connection further includes receiving unit 22.

The receiving unit 22, for the determination unit 20 from multiple second nodes determine allow discharge connect second node before, the connection release request message that the first node is sent is received, the connection release request message is used to that the determination unit to be requested to determine the second node for allowing to discharge connection.

The determination unit 20, is specifically used for according to the received connection release request message of the receiving unit 22, and determining from multiple second nodes allows to discharge the second node connected.

If the second node for allowing to discharge connection that the determination unit 20 determines is the first VIM for meeting first condition there is no not having the VIM of resource management relationship with the VNFM in the multiple VIM.

Optionally, the first node is VIM, and the multiple second node is multiple VNFM.

If the second node for allowing to discharge connection that the determination unit 20 determines is the first VNFM for meeting second condition there is no not having the VNFM of resource management relationship with the VIM in the multiple VNFM.

Optionally, the transmission unit 21, it is also used in the determination unit 20 after determining the second node for allowing release connection in multiple second nodes, to the second node second Connection Release notification message of transmission that allows to discharge and connect, the mark of the first node is carried in the second Connection Release notification message, the second Connection Release notification message is used to notify the second node for allowing to discharge connection, the information for the first node that the deletion mark for allowing to discharge the first node saved in the second node connected indicates.

The embodiment of the present invention provides a kind of device of release connection, can determine from multiple second nodes allows to discharge the second node connected, and the first Connection Release notification message is sent to first node, the mark for allowing to discharge the second node connected is carried in the first Connection Release notification message, the first Connection Release notification message is for notifying first node, the information for allowing to discharge the second node connected saved in first node is deleted, multiple second node is The node of connection has been established with first node.

The device of the release connection provided through the embodiment of the present invention, management node can select suitable second node in the multiple second nodes for establishing connection with first node, and the connection between the release of notice first node and the second node in time, to save the connection resource of first node, so that there is first node idle connection resource to establish the new connection between other second nodes, so that first node can be communicated with other second nodes.

Example IV

As shown in figure 15, the embodiment of the present invention provides a kind of device of release connection, the device of the release connection can be the entity apparatus where first node described in above-described embodiment, or an entity apparatus that can be communicated with the entity apparatus where the first node.The device of the release connection is able to carry out the method flow that the first node is able to carry out, specifically, the device of the release connection may include: processor 30, memory 31, communication interface 32 and system bus 33.It is connected between the processor 30, the memory 31 and communication interface 32 by the system bus 33 and completes mutual communication.

The processor 30 can be a central processing unit (English: central processing unit, abbreviation: CPU), either specific integrated circuit (English: application specific integrated circuit, abbreviation: ASIC), or be arranged to implement one or more integrated circuits of the embodiment of the present invention.

The memory 31 may include volatile memory (English: volatile memory), such as random access memory (English: random-access memory, abbreviation: RAM)；The memory 31 also may include nonvolatile memory (English: non-volatile memory), such as read-only memory (English: read-only memory, abbreviation: ROM), flash memory (English: flash memory), hard disk (English: hard disk drive, abbreviation: HDD) or solid state hard disk (English: solid-state drive, abbreviation: SSD)；The memory 31 can also include the combination of the memory of mentioned kind.

The communication interface 32 is used to interact with other nodes, such as interacts with functional nodes such as second node, management nodes.

When the device operation of the release connection, the processor 30 and the memory 31 can execute Fig. 2 or if Fig. 4 are to the method flow as described in the either figure in Figure 10, specifically include:

The processor 30, allow to discharge the second node connected for determining from multiple second nodes, and the information for allowing to discharge the second node connected saved in the first node is deleted, the multiple second node is the node that connection is established with first node；The memory 31, for storing the code of the information for allowing to discharge the second node connected, and the control processor 30 completes the software program of the above process, to which the processor 30 passes through the code for executing the software program and calling the information for allowing to discharge the second node connected, to complete the above process.

Optionally, the processor 30 carries the mark for allowing to discharge the second node connected specifically for receiving the first Connection Release notification message of management node transmission in the first Connection Release notification message.

The processor 30, specifically for determining the second node for allowing to discharge connection according to the mark for allowing to discharge the second node connected.

Optionally, the processor 30, it is also used to before receiving the first Connection Release notification message that management node is sent, Xiang Suoshu management node sends connection release request message, and the connection release request message is used to that the management node to be requested to determine the second node for allowing release to connect.

Optionally, the first node is VNFM, and the multiple second node is multiple virtual machine infrastructure management node VIM；Alternatively, the first node is VIM, the multiple second node is multiple VNFM.

If existing in the multiple VIM does not have the VIM of resource management relationship with the VNFM, the second node for allowing release to connect that the processor 30 determines is not have the VIM of resource management relationship with the VNFM in the multiple VIM.

Alternatively, if there is no do not have the VIM of resource management relationship, the second node for allowing to discharge connection that the processor 30 determines with the VNFM in the multiple VIM For the first VIM for meeting first condition.

Optionally, the processor 30, it is also used to after determining the second node for allowing release connection in multiple second nodes, before the information for deleting the second node for allowing to discharge connection saved in the first node, to the second node second Connection Release notification message of transmission that allows to discharge and connect, the mark of the first node is carried in the second Connection Release notification message, the second Connection Release notification message is used to notify the second node for allowing to discharge connection, delete the information of the first node of the mark instruction for allowing to discharge the first node saved in the second node connected.

As shown in figure 16, the embodiment of the present invention provides a kind of device of release connection, the device of the release connection can be the entity apparatus where management node described in above-described embodiment, or an entity apparatus that can be communicated with the entity apparatus where the management node.The device of the release connection is able to carry out the method flow that the management node is able to carry out, specifically, the device of the release connection may include: processor 40, memory 41, communication interface 42 and system bus 43.It is connected between the processor 40, the memory 41 and communication interface 42 by the system bus 43 and completes mutual communication.

The processor 40 can be a CPU or ASIC, or be arranged to implement one or more integrated circuits of the embodiment of the present invention.

The memory 41 may include volatile memory, such as RAM；The memory 41 also may include nonvolatile memory, such as ROM, flash memory, HDD or SSD；The memory 41 can also include the combination of the memory of mentioned kind.

The communication interface 42 is used to interact with other nodes, such as interacts with functional nodes such as first nodes.

When the device operation of the release connection, the processor 40 and the memory 41 can execute Fig. 3 to Fig. 7 or if Fig. 9 are to the method flow as described in the either figure in Figure 10, specifically include:

Processor 40, allow to discharge the second node connected for determining from multiple second nodes, and the first Connection Release notification message is sent to the first node, the mark for allowing to discharge the second node connected is carried in the first Connection Release notification message, the first Connection Release notification message is for notifying the first node, the information for allowing to discharge the second node connected saved in the first node is deleted, the multiple second node is the node that connection is established with first node；The memory 41, for storing the code of the first Connection Release notification message, the code of the mark for allowing to discharge the second node connected, and the control processor 40 completes the software program of the above process, to which the processor 40 passes through the code of the code for executing the software program and calling the first Connection Release notification message, the mark for allowing to discharge the second node connected, to complete the above process.

Optionally, if existing in the multiple second node does not have the second node of resource management relationship with the first node, the second node for allowing release to connect that the processor 40 determines is not have the second node of resource management relationship with the first node in the multiple second node.

Optionally, the processor 40, it is also used in the determination unit before determining the second node for allowing release connection in multiple second nodes, the connection release request message that the first node is sent is received, the connection release request message is used to that the determination unit to be requested to determine the second node for allowing to discharge connection.

The processor 40, is specifically used for according to the connection release request message, and determining from multiple second nodes allows to discharge the second node connected.

If the second node for allowing to discharge connection that the processor 40 determines is the first VIM for meeting first condition there is no not having the VIM of resource management relationship with the VNFM in the multiple VIM.

If the second node for allowing to discharge connection that the processor 40 determines is the first VNFM for meeting second condition there is no not having the VNFM of resource management relationship with the VIM in the multiple VNFM.

Optionally, the processor 40, it is also used to after determining the second node for allowing release connection in multiple second nodes, to the second node second Connection Release notification message of transmission that allows to discharge and connect, the mark of the first node is carried in the second Connection Release notification message, the second Connection Release notification message is used to notify the second node for allowing to discharge connection, the information for the first node that the deletion mark for allowing to discharge the first node saved in the second node connected indicates.

Embodiment five

As shown in figure 17, the embodiment of the present invention provides a kind of communication system, which may include the device such as Figure 11 or release connection as shown in figure 12, such as Figure 13 or the device and second node of release connection as shown in figure 14；Alternatively, the communication system may include the device of release connection as shown in figure 15, the device and second node of release connection as shown in figure 16.

Wherein, the device, the device for discharging connection as shown in figure 12 of release connection as shown in figure 11, and the device of release connection as shown in figure 15, can be known as first node；The device of connection, the device of release connection as shown in figure 14, and the device of release connection as shown in figure 16 are discharged as shown in fig. 13 that, can be known as management node.

Can determine from multiple second nodes in the first node in communication system provided in an embodiment of the present invention allows to discharge the second node connected, and deletes the information for allowing to discharge the second node connected saved in first node；Management node can be determined from multiple second nodes to be allowed to discharge the second node connected, and the first Connection Release notification message is sent to first node, the mark for allowing to discharge the second node connected is carried in the first Connection Release notification message, the first Connection Release notification message deletes the information for allowing to discharge the second node connected saved in first node for notifying first node.Wherein, multiple second node is the node that connection is established with first node.

It should be noted that first node can be VNFM in embodiments of the present invention, or VIM.Specifically, when first node is VNFM, second node VIM, and the VIM establishes connection with the VNFM；When first node is VIM, which is VNFM, and the VNFM establishes connection with the VIM.

It can be understood that, first node in communication system provided in an embodiment of the present invention, it is able to carry out such as Fig. 2 to the method for the release connection as described in any width figure in Figure 10, the concrete function to each module or device in first node and the process for executing method are referred to the description such as Fig. 2 into the embodiment as shown in any width figure in Figure 10, and details are not described herein again.

Management node in communication system provided in an embodiment of the present invention, it is able to carry out if Fig. 3 is to such as Fig. 7 or such as Fig. 9 to the method for the release connection as described in any width figure in Figure 10, the concrete function to each module or device in management node and the process for executing method are referred to such as Fig. 3 to the description such as Fig. 7 or such as Fig. 9 into the embodiment as shown in any width figure in Figure 10, and details are not described herein again.

The communication system provided through the embodiment of the present invention, management node can select suitable second node in the multiple second nodes for establishing connection with first node, and the connection between the release of notice first node and the second node in time, to save the connection resource of first node, so that there is first node idle connection resource to establish the new connection between other second nodes, so that first node can be communicated with other second nodes.

It is apparent to those skilled in the art that, for convenience and simplicity of description, only the example of the division of the above functional modules, in practical application, it can according to need and be completed by different functional modules above-mentioned function distribution, the internal structure of device is divided into different functional modules, to complete all or part of the functions described above.The specific work process of the system, apparatus, and unit of foregoing description, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.

In several embodiments provided herein, it should be understood that disclosed system, device and method may be implemented in other ways.Such as, the apparatus embodiments described above are merely exemplary, such as, the division of the module or unit, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed mutual coupling, direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING or communication of device or unit Connection can be electrical property, mechanical or other forms.

The unit as illustrated by the separation member may or may not be physically separated, and component shown as a unit may or may not be physical unit, it can and it is in one place, or may be distributed over multiple network units.It can some or all of the units may be selected to achieve the purpose of the solution of this embodiment according to the actual needs.

In addition, the functional units in various embodiments of the present invention may be integrated into one processing unit, it is also possible to each unit and physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated unit both can take the form of hardware realization, can also realize in the form of software functional units.

If the integrated unit is realized in the form of SFU software functional unit and when sold or used as an independent product, can store in a computer readable storage medium.Based on this understanding, substantially all or part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products technical solution of the present invention in other words, the computer software product is stored in a storage medium, it uses including some instructions so that a computer equipment (can be personal computer, server or the network equipment etc.) or processor perform all or part of the steps of the method described in the various embodiments of the present invention.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (full name in English: Read-Only Memory, english abbreviation: ROM), random access memory (full name in English: Random Access Memory, english abbreviation: RAM), the various media that can store program code such as magnetic or disk.

It is described above; only a specific embodiment of the invention, but scope of protection of the present invention is not limited thereto, and anyone skilled in the art is in the technical scope disclosed by the present invention; it can easily think of the change or the replacement, should be covered by the protection scope of the present invention.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

A method of release connection characterized by comprising

First node is determined from multiple second nodes to be allowed to discharge the second node connected, and the multiple second node is the node that connection is established with the first node；

The first node deletes the information for allowing to discharge the second node connected saved in the first node.
The method according to claim 1, wherein the first node is determined from multiple second nodes to be allowed to discharge the second node connected, comprising:

The first node receives the first Connection Release notification message that management node is sent, and the mark for allowing to discharge the second node connected is carried in the first Connection Release notification message；

The first node determines the second node for allowing to discharge connection according to the mark for allowing to discharge the second node connected.
According to the method described in claim 2, it is characterized in that, the first node receive management node send the first Connection Release notification message before, the method also includes:

The first node sends connection release request message to the management node, and the connection release request message is used to that the management node to be requested to determine the second node for allowing to discharge connection.
Method according to claim 1-3, which is characterized in that

The first node is virtual network function management node VNFM, and the multiple second node is multiple virtual machine infrastructure management node VIM；Alternatively,

The first node is VIM, and the multiple second node is multiple VNFM.
The method according to claim 1, wherein the first node is VNFM, the multiple second node is multiple VIM,

It is described that the second node for discharging connection is allowed to be not have the VIM of resource management relationship with the VNFM in the multiple VIM if existing in the multiple VIM does not have the VIM of resource management relationship with the VNFM；Alternatively,

If the second node for allowing to discharge connection is the first VIM for meeting first condition there is no not having the VIM of resource management relationship with the VNFM in the multiple VIM,

Wherein, it is described that the first condition, which is the first VIM in the multiple VIM, The resource for the virtual network function VNF distribution that VNFM is managed allows by another VIM in the multiple VIM to be VNF distribution.
Method according to claim 1-5, it is characterized in that, the first node is after determining the second node for allowing release connection in multiple second nodes, before the first node deletes the information for allowing to discharge the second node connected saved in the first node, the method also includes:

The first node sends the second Connection Release notification message to the second node for allowing to discharge connection, the mark of the first node is carried in the second Connection Release notification message, the second Connection Release notification message is used to notify the second node for allowing to discharge connection, the information for the first node that the deletion mark for allowing to discharge the first node saved in the second node connected indicates.
A method of release connection characterized by comprising

Management node is determined from multiple second nodes to be allowed to discharge the second node connected, and the multiple second node is the node that connection is established with first node；

The management node sends the first Connection Release notification message to the first node, the mark for allowing to discharge the second node connected is carried in the first Connection Release notification message, the first Connection Release notification message deletes the information for allowing to discharge the second node connected saved in the first node for notifying the first node.
The method according to the description of claim 7 is characterized in that

It is described that the second node for discharging connection is allowed to be not have the second node of resource management relationship with the first node in the multiple second node if existing in the multiple second node does not have the second node of resource management relationship with the first node.
Method according to claim 7 or 8, which is characterized in that before the management node allows to discharge the second node connected from determination in multiple second nodes, the method also includes:

The management node receives the connection release request message that the first node is sent, and the connection release request message is used to that the management node to be requested to determine the second node for allowing to discharge connection；

The management node is determined from multiple second nodes to be allowed to discharge the second node connected, Include:

The management node determines the second node for allowing to discharge connection according to the connection release request message from the multiple second node.
According to the described in any item methods of claim 7-9, which is characterized in that

The first node is virtual network function management node VNFM, and the multiple second node is multiple virtual machine infrastructure management node VIM；Alternatively,

The first node is VIM, and the multiple second node is multiple VNFM.
According to the method described in claim 9, the multiple second node is multiple VIM it is characterized in that, the first node is VNFM,

If the second node for allowing to discharge connection is the first VIM for meeting first condition there is no not having the VIM of resource management relationship with the VNFM in the multiple VIM,

Wherein, the first condition by the first VIM in the multiple VIM be the VNFM manage virtual network function VNF distribution resource, allow by another VIM in the multiple VIM be the VNF distribute.
According to the method described in claim 9, the multiple second node is multiple VNFM it is characterized in that, the first node is VIM,

If the second node for allowing to discharge connection is the first VNFM for meeting second condition there is no not having the VNFM of resource management relationship with the VIM in the multiple VNFM,

Wherein, the second condition by the VIM be the first VNFM in the multiple VNFM manage VNF distribution resource, allow by established with the first VNFM another VIM of connection be the VNF distribute.
According to the described in any item methods of claim 7-12, which is characterized in that the management node from multiple second nodes determine allow discharge connect second node after, the method also includes:

The management node sends the second Connection Release notification message to the second node for allowing to discharge connection, the mark of the first node is carried in the second Connection Release notification message, the second Connection Release notification message is used to notify the second node for allowing to discharge connection, the deletion mark for allowing to discharge the first node saved in the second node connected The information of the first node indicated.
A kind of device of release connection characterized by comprising

Determination unit allows to discharge the second node connected for determining from multiple second nodes, and the multiple second node is the node that connection is established with first node；

Unit is deleted, the information for allowing to discharge the second node connected determined for deleting the determination unit saved in the first node.
The device of release connection according to claim 14, which is characterized in that

The determination unit carries the mark for allowing to discharge the second node connected specifically for receiving the first Connection Release notification message of management node transmission in the first Connection Release notification message；

The determination unit, specifically for determining the second node for allowing to discharge connection according to the mark for allowing to discharge the second node connected.
The device of release connection according to claim 15, which is characterized in that the device of the release connection further includes transmission unit,

The transmission unit, for before the first Connection Release notification message that the determination unit receives that management node is sent, connection release request message is sent to the management node, the connection release request message is used to that the management node to be requested to determine the second node for allowing to discharge connection.
The device of the described in any item release connections of 4-16 according to claim 1, which is characterized in that

The first node is virtual network function management node VNFM, and the multiple second node is multiple virtual machine infrastructure management node VIM；Alternatively,

The first node is VIM, and the multiple second node is multiple VNFM.
The device of release connection according to claim 14, which is characterized in that the first node is VNFM, and the multiple second node is multiple VIM,

If existing in the multiple VIM does not have the VIM of resource management relationship with the VNFM, the second node for allowing release to connect that the determination unit determines is not have the VIM of resource management relationship with the VNFM in the multiple VIM；Alternatively,

If there is no do not have resource management relationship with the VNFM in the multiple VIM VIM, then the second node for allowing to discharge connection that the determination unit determines is the first VIM for meeting first condition,

Wherein, the first condition by the first VIM in the multiple VIM be the VNFM manage virtual network function VNF distribution resource, allow by another VIM in the multiple VIM be the VNF distribute.
The device of the described in any item release connections of 6-18 according to claim 1, which is characterized in that

The transmission unit, it is also used in the determination unit after determining the second node for allowing release connection in multiple second nodes, before the information for allowing to discharge the second node connected saved in first node described in the deletion element deletion, to the second node second Connection Release notification message of transmission that allows to discharge and connect, the mark of the first node is carried in the second Connection Release notification message, the second Connection Release notification message is used to notify the second node for allowing to discharge connection, delete the information of the first node of the mark instruction for allowing to discharge the first node saved in the second node connected.
A kind of device of release connection characterized by comprising

Determination unit allows to discharge the second node connected for determining from multiple second nodes, and the multiple second node is the node that connection is established with first node；

Transmission unit, for sending the first Connection Release notification message to the first node, the mark for allowing to discharge the second node connected that the determination unit determines is carried in the first Connection Release notification message, the first Connection Release notification message deletes the information for allowing to discharge the second node connected saved in the first node for notifying the first node.
The device of release connection according to claim 20, which is characterized in that

If existing in the multiple second node does not have the second node of resource management relationship with the first node, the second node for allowing release to connect that the determination unit determines is not have the second node of resource management relationship with the first node in the multiple second node.
The device of release connection according to claim 20 or 21, which is characterized in that the device of the release connection further includes receiving unit,

The receiving unit allows for determining from multiple second nodes in the determination unit Before the second node for discharging connection, the connection release request message that the first node is sent is received, the connection release request message is used to that the determination unit to be requested to determine the second node for allowing release to connect；

The determination unit, is specifically used for according to the received connection release request message of the receiving unit, and determining from multiple second nodes allows to discharge the second node connected.
According to the device of the described in any item release connections of claim 20-22, which is characterized in that

The first node is virtual network function management node VNFM, and the multiple second node is multiple virtual machine infrastructure management node VIM；Alternatively,

The first node is VIM, and the multiple second node is multiple VNFM.
The device of release connection according to claim 22, which is characterized in that the first node is VNFM, and the multiple second node is multiple VIM,

If the second node for allowing to discharge connection that the determination unit determines is the first VIM for meeting first condition there is no not having the VIM of resource management relationship with the VNFM in the multiple VIM,

Wherein, the first condition by the first VIM in the multiple VIM be the VNFM manage virtual network function VNF distribution resource, allow by another VIM in the multiple VIM be the VNF distribute.
The device of release connection according to claim 22, which is characterized in that the first node is VIM, and the multiple second node is multiple VNFM,

If the second node for allowing to discharge connection that the determination unit determines is the first VNFM for meeting second condition there is no not having the VNFM of resource management relationship with the VIM in the multiple VNFM,

Wherein, the second condition by the VIM be the first VNFM in the multiple VNFM manage VNF distribution resource, allow by established with the first VNFM another VIM of connection be the VNF distribute.
According to the device of the described in any item release connections of claim 20-25, which is characterized in that

The transmission unit is also used to determine from multiple second nodes in the determination unit and permit Perhaps after the second node for discharging connection, to the second node second Connection Release notification message of transmission that allows to discharge and connect, the mark of the first node is carried in the second Connection Release notification message, the second Connection Release notification message is used to notify the second node for allowing to discharge connection, the information for the first node that the deletion mark for allowing to discharge the first node saved in the second node connected indicates.
A kind of communication system characterized by comprising

Such as the device of the described in any item release connections of claim 14-19, and the device such as the described in any item release connections of claim 20-26.