WO2016058412A1 - 一种实现虚拟网络功能部署的方法、装置及存储介质 - Google Patents

一种实现虚拟网络功能部署的方法、装置及存储介质 Download PDF

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Publication number
WO2016058412A1
WO2016058412A1 PCT/CN2015/083042 CN2015083042W WO2016058412A1 WO 2016058412 A1 WO2016058412 A1 WO 2016058412A1 CN 2015083042 W CN2015083042 W CN 2015083042W WO 2016058412 A1 WO2016058412 A1 WO 2016058412A1
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node
software version
available
vnf
deployment
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PCT/CN2015/083042
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English (en)
French (fr)
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肖维金
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中兴通讯股份有限公司
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/40—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks using virtualisation of network functions or resources, e.g. SDN or NFV entities

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  • the invention relates to a virtualized network function (VNF) installation and deployment technology in a network function virtualization (NFV) network topology, in particular to a method, a device and a computer storage medium for realizing VNF automatic deployment.
  • VNF virtualized network function
  • NFV network function virtualization
  • network functions are implemented through dedicated hardware and network devices, which makes it difficult for operators to deploy and operate network functions in heterogeneous environments provided by different device vendors. Therefore, operators are eager to build a new network architecture, which is to replace the closed and replace the proprietary with the universal.
  • the network functions of the original proprietary network element devices are extracted and virtualized, and run on a unified general server platform.
  • ETSI European Telecommunications Standards Institute
  • NFVI network function virtualization infrastructure
  • VNF deployment is required. The VNF deployment includes installing or upgrading the VNF software version by each network element.
  • the traditional VNF deployment generally passes through a single node of the Element Management System (EMS) as shown in Figure 1. (Note, there may be other single nodes, this article only uses EMS as an example) Centrally install the deployment.
  • EMS Element Management System
  • the traditional VNF deployment method has the following disadvantages:
  • the embodiments of the present invention provide a method, a device, and a computer storage medium for implementing VNF automatic deployment, which can meet the requirements of the NFV network topology architecture for fast, flexible, automatic, high performance, and high reliability of VNF deployment.
  • the embodiment of the present invention provides a method for implementing VNF automatic deployment, which is applied to a first node, where the first node is a node of any NFV network topology to be installed with a VNF software version, and the method includes:
  • the updated deployment path routing information table, preset path selection policy, and VNF A software version trust policy determines an available set of paths; the set of available paths includes one or more available paths;
  • the VNF software version is downloaded through the determined set of available paths.
  • the method further includes:
  • the new available path set is determined according to the real-time updated deployment path routing information table and the VNF software version trust policy.
  • the VNF software version continues to be downloaded through the determined new set of available paths.
  • the method further includes:
  • the third node is a node that can be used for downloading the VNF software version by the first node, and after determining that the download of the VNF software version is not completed, the real-time update is performed again.
  • the deployment path routing information table and the VNF software version trust policy determine a new set of available paths;
  • the VNF software version continues to be downloaded through the determined new set of available paths.
  • the method further includes: managing the virtual network function when the routing path information table, the preset path selection policy, and the VNF software version trust policy are not determined according to the updated deployment path routing policy (The Virtualized Network Function Manager (VNFM) node initiates an available path set arbitration request;
  • VNFM Virtualized Network Function Manager
  • the VNF software version is downloaded through the set of available paths received.
  • the preset path selection policy includes that the available bandwidth of the second node is greater than a bandwidth threshold, or the available bandwidth of the second node is greater than a bandwidth threshold and the next node of the first node and the second node The hop count is less than or equal to the hop count threshold; the bandwidth threshold is the first node The minimum bandwidth required to carry the VNF software version.
  • the embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the method for implementing automatic VNF deployment according to the embodiment of the invention.
  • the embodiment of the present invention further provides an apparatus for implementing VNF automatic deployment, which is applied to a first node, where the first node is a node of any NFV network topology to be installed with a VNF software version, and the device includes a sending unit and a receiving unit. , determining unit, and downloading unit; wherein
  • the sending unit is configured to send an update deployment path routing information table broadcast message to all second nodes; the second node represents a node in the NFV network topology that can provide a VNF software version to be installed;
  • the receiving unit is configured to receive the deployment path routing information fed back by all the second nodes and record the routing information in the deployment path routing information table to update the deployment path routing information table.
  • the determining unit is configured to determine an available path set according to the updated deployment path routing information table, a preset path selection policy, and a VNF software version trust policy; the available path set includes one or more available paths;
  • the download unit is configured to download the VNF software version through the determined set of available paths.
  • the apparatus further includes a first determination processing unit; wherein
  • the first determining processing unit is configured to, if it is determined that the download of the VNF software version is not completed, if it is determined that the download of the VNF software version is not completed, re-route the routing information table and the VNF according to the real-time updated deployment path.
  • the software version trust policy determines a new set of available paths;
  • the downloading unit is further configured to continue to download the VNF software version by using the new available path set determined by the first determining processing unit.
  • the apparatus further includes a second determination processing unit
  • the second determining processing unit is configured to: when a third node is added to the NFV network topology, the third node is a node that can be used for downloading the VNF software version by the first node, and determines that the VNF software is not completed after determining After the version is downloaded, the new available path set is determined according to the real-time updated deployment path routing information table and the VNF software version trust policy;
  • the downloading unit is further configured to continue to download the VNF software version by using the new available path set determined by the second determining processing unit.
  • the sending unit is further configured to: when the determining unit does not determine the available path set according to the updated deployment path routing information table, the preset path selection policy, and the VNF software version trust policy, Initiating an available path set arbitration request to the virtual network function management VNFM node;
  • the receiving unit is further configured to receive an available path set fed back by the VNFM node;
  • the download unit is further configured to download the VNF software version according to the available path set received by the receiving unit.
  • the method, the device and the computer storage medium for implementing the automatic deployment of the VNF are applied to the first node, where the first node is a node of the NFV network topology to be installed with the VNF software version; the first The node sends an update deployment path routing information table broadcast message to all the second nodes; the second node represents a node in the NFV network topology that can provide the VNF software version to be installed; and receives the deployment path routing information fed back by all the second nodes and Recorded in its own deployment path routing information table to update the deployment path routing information table; determine the available path set according to the updated deployment path routing information table, the preset path selection policy, and the VNF software version trust policy; The set of available paths includes one or more available paths; the VNF software version is downloaded through the determined set of available paths.
  • the VNF automatic deployment method according to the embodiment of the present invention can meet the requirements of the NFV network topology architecture for fast, flexible, automatic, high performance, and high reliability of VNF deployment.
  • FIG. 1 is a schematic structural diagram of a structure of an NFV network topology structure for implementing VNF deployment in the related art
  • FIG. 2 is a schematic flowchart 1 of a method for implementing automatic deployment of a VNF according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a structure of an NFV network topology structure for implementing VNF automatic deployment according to an embodiment of the present invention
  • FIG. 4 is a second schematic flowchart of a method for implementing automatic VNF deployment according to an embodiment of the present invention
  • FIG. 5 is a schematic flowchart 3 of a method for implementing automatic deployment of a VNF according to an embodiment of the present invention
  • FIG. 6 is a schematic flowchart 4 of a method for implementing automatic deployment of a VNF according to an embodiment of the present invention
  • FIG. 7 is a schematic structural diagram 1 of a device for implementing automatic deployment of a VNF according to an embodiment of the present invention
  • FIG. 8 is a schematic structural diagram 2 of a device for implementing automatic VNF deployment according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram 3 of a device for implementing automatic deployment of a VNF according to an embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram 4 of a device for implementing automatic deployment of a VNF according to an embodiment of the present invention.
  • the first node sends an update deployment path routing information table broadcast message to all the second nodes, and the second node represents a node in the NFV network topology that can provide the VNF software version to be installed;
  • the deployment path routing information fed back by the two nodes is recorded in its own deployment path routing information table to update the deployment path routing information table; according to the updated deployment path routing information table, the preset path selection policy, and the VNF
  • the software version trust policy determines an available set of paths; the set of available paths includes one or more available paths; the VNF software version is downloaded through the determined set of available paths.
  • the first node is a node of any NFV network topology to be installed with a VNF software version.
  • the first node is a node of the NFV network topology to be installed with the VNF software version.
  • the method for implementing the VNF automatic deployment in the embodiment of the present invention includes:
  • Step S100 Send an update deployment path routing information table broadcast message to all second nodes; the second node represents a node in the NFV network topology that can provide a VNF software version to be installed;
  • the Network Functions Virtualization Orchestrator (NFVO) node cooperates with the VNFM node.
  • the creation of a virtual machine required for VNF deployment to specify the system mechanism for the virtual machine to start the entire NFV network topology to implement VNF deployment.
  • step S100 is performed.
  • step S100 when the second node receives the update deployment path routing information table broadcast message, the deployment path routing information is fed back to the first node in time.
  • Step S101 Receive deployment path routing information fed back by all the second nodes and record them in the deployment path routing information table of the second node to implement update of the deployment path routing information table.
  • the deployment path routing information fed back by the second node includes a topology node number of the second node, software version information that can be provided externally, remaining bandwidth, a maximum number of users providing an externally downloaded version, and a current number of access users.
  • the software version information that is externally available includes a VNF network element type and version number, a version file signature, a version status, and a Cyclic Redundancy Check (CRC) check.
  • Step S102 Determine an available path set according to the updated deployment path routing information table, a preset path selection policy, and a VNF software version trust policy; the available path set includes one or more available paths;
  • the preset path selection policy includes that the available bandwidth of the second node is greater than a bandwidth threshold, or the available bandwidth of the second node is greater than a bandwidth threshold and the first node and the second node are The next hop count is less than or equal to the hop count threshold and the like; wherein the bandwidth threshold is a minimum bandwidth required for the first node to download the VNF software version.
  • the VNF software version trust policy includes one or any combination of a VNF network element type and version number, a version file signature, a version status, and a version CRC check of the first node in the VNF deployment.
  • step S102 is configured according to the updated deployment path routing information table, a preset path selection policy, and a VNF software version trust policy. Determining the set of available paths includes:
  • Step 1a traversing the entire updated deployment path routing information table, and filtering all second nodes that match the VNF software version trust policy;
  • Step 2a searching for the remaining bandwidth of the filtered second node in the updated deployment path routing information table, and determining the available bandwidth of the second node; wherein the available bandwidth of the second node is 50% of the remaining bandwidth.
  • Step 3a Determine whether there is a second node that meets the preset path selection policy, that is, the second node that meets the available bandwidth greater than the bandwidth threshold, and obtains the determination result;
  • Step 4a When the determination result is that the second node that meets the preset path selection policy exists, the link between each second node that meets the preset selection policy and the first node is determined as an available path.
  • the combination of the available paths is referred to as a set of available paths.
  • the available path set is not determined; at this time, the first node may further initiate the available path set to the VNFM node.
  • the arbitration request is such that the VNFM node determines the set of available paths according to a predetermined arbitration policy.
  • step S102 is performed according to the updated a deployment path routing information table, a preset path selection policy, and The VNF software version trust policy determines the set of available paths including:
  • Step 1b traversing the entire updated deployment path routing information table, and filtering all the second nodes that match the VNF software version trust policy;
  • Step 2b Searching, in the updated deployment path routing information table, the number of next hops of the second node and the first node that are filtered;
  • Step 3b searching for the remaining bandwidth of the filtered second node in the updated deployment path routing information table, and determining the available bandwidth of the second node; wherein, the available bandwidth of the second node is 50% of the remaining bandwidth.
  • Step 4b determining whether there is a second node that meets the preset path selection policy, that is, the second node that meets the available bandwidth greater than the bandwidth threshold and the next hop of the first node and the second node is less than or equal to the hop threshold, and is determined. result;
  • Step 5b When the determination result is that the second node that meets the preset path selection policy exists, the link between each second node that meets the preset selection policy and the first node is determined as an available path.
  • the combination of possible paths is referred to as a set of available paths.
  • the available path set is not determined; at this time, the first node may further initiate the available path set to the VNFM node.
  • the arbitration request is such that the VNFM node determines the set of available paths according to a predetermined arbitration policy.
  • Step S103 Download the VNF software version through the determined available path set.
  • downloading the VNF software version through the determined available path set includes the following two methods: 1) downloading the VNF software version to be downloaded from the plurality of available paths by file size The corresponding plurality of second nodes respectively download different files; 2) the files in the VNF software version to be downloaded are combined and downloaded from the plurality of second nodes corresponding to the plurality of available paths.
  • Step S104 After the download is completed, the downloaded VNF software version is installed.
  • the first node before the first node downloads the VNF software version through the determined available path set, the first node sends the second node to all the second nodes in the NFV network topology in real time.
  • the determined available path set information is such that all second nodes update their own deployment path routing information tables in real time.
  • the downloaded VNF software version is installed because the first node can download the VNF software version to be deployed.
  • the first node can complete the automatic installation and deployment of the VNF software version by using the embodiment of the present invention.
  • the first node sends a request for increasing the path information of the first node to be available to all the second nodes in the NFV network topology in real time, so that all the second nodes update their own deployment path routing information table in real time.
  • the embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the method for implementing automatic VNF deployment according to the embodiment of the invention.
  • the NFVI resource pool includes a provincial central resource pool and a local resource pool.
  • the provincial resource pool includes NFVO, VNFM, EMS, VNF1, and VNF2 network elements
  • the local resource pool includes VNF3 to VNF7 nodes.
  • VNF1, VNF3, and VNF7 are Mobility Management Entity (MME) network elements
  • VNF2, VNF4, VNF5, and VNF6 are Serving GPRS Support Nodes (SGSNs). ) Network element.
  • MME Mobility Management Entity
  • VNF2, VNF4, VNF5, and VNF6 are Serving GPRS Support Nodes (SGSNs).
  • the VNF software version is not installed by VNF4 and VNF7, and the determined available path set includes only one available path.
  • the NFVO node and the VNFM node are required to cooperate to implement the virtual machine required for the VNF deployment, and the virtual machine is started to implement the NFV network topology as shown in FIG. 2 to implement the VNF.
  • the system mechanism of the deployment after that, the VNFM node starts the virtual machine with the VNF software version download function in which the VNF4 is located, and the VNF4 determines that the VNF software version is not installed, that is, the VNF4 is the first node, that is, the VNF software version is to be installed. node.
  • VNF4 implements VNF automatic deployment including the following steps:
  • Step A1 Send an update deployment path routing information table broadcast message to all second nodes; the second node represents a node in the NFV network topology that can provide a VNF software version to be installed;
  • the second node shown includes EMS, VNF1, VNF2, VNF3, VNF5, VNF6, and the like.
  • Step A2 Receive the deployment path routing information fed back by all the second nodes and record them in the deployment path routing information table to implement the update of the deployment path routing information table.
  • the updated deployment path routing information table is as follows: Shown.
  • Step A3 VNF4 determines an available path set according to the updated deployment path routing information table (such as Table 1), a preset path selection policy, and a VNF software version trust policy.
  • the updated deployment path routing information table such as Table 1
  • the second node whose threshold value is 200M and the number of next hops of the first node and the second node is less than or equal to 1) is VNF6, so the link of VNF6 ⁇ VNF4 is determined as the available path set;
  • the VNF4 downloads the VNF software version through the determined available path set VNF6 ⁇ VNF4, the VNF4 transmits the determined available path set information to all the second nodes in the NFV network topology in real time, so that all the second nodes are real-time.
  • Update its own deployment path routing information table is shown in Table 2 below.
  • Step A4 Download the VNF software version by using the determined VNF6 ⁇ VNF4;
  • Step A5 After the download is complete, install the VNF software version.
  • VNF4 After step A5, the VNF software version of VNF4 has been automatically installed and deployed. At this time, VNF4 sends a path information request for adding VNF4 to all the second nodes in the NFV network topology in real time, so that all the second nodes update their own deployment path routing information table in real time, and the updated deployment path routing information table. As shown in Table 3 below.
  • the VNF software version is not installed by VNF4 and VNF7, and the determined available path set includes a plurality of available paths.
  • VNF4 implements VNF automatic deployment including the following steps:
  • Step B1 Send an update deployment path routing information table broadcast message to all second nodes; the second node represents a node in the NFV network topology that can provide a VNF software version to be installed;
  • the second node shown includes EMS, VNF1, VNF2, VNF3, VNF5, VNF6, and the like.
  • Step B2 Receive the deployment path routing information fed back by all the second nodes and record them in the deployment path routing information table to implement the update of the deployment path routing information table.
  • Step B3 The VNF4 determines the available path set according to the updated deployment path routing information table, the preset path selection policy, and the VNF software version trust policy.
  • the second node includes the EMS and the VNF6;
  • the VNF4 downloads the VNF software version through the determined available path set VNF6 ⁇ VNF4 and EMS ⁇ VNF4, the VNF4 transmits the determined available path set information to all the second nodes in the NFV network topology in real time, so that All the second nodes update their own deployment path routing information table in real time.
  • Step B4 download the VNF software version by using the determined VNF6 ⁇ VNF4 and EMS ⁇ VNF4;
  • Step B5 After the download is completed, install the VNF software version.
  • VNF4 After step B5, the VNF software version of VNF4 has been automatically installed and deployed. At this time, VNF4 sends a path information request for adding VNF4 to all the second nodes in the NFV network topology in real time, so that all the second nodes update their own deployment path routing information table in real time.
  • the VNF4 downloads the VNF software version through the determined available path set, including the following two methods: 1) the VNF software version to be downloaded is filed as The granularity downloads different files from the second node VNF6 and EMS corresponding to the available paths VNF6 ⁇ VNF4 and EMS ⁇ VNF4 respectively; 2) the files in the VNF software version to be downloaded are corresponding to the available paths VNF6 ⁇ VNF4 and EMS ⁇ VNF4.
  • the second node VNF6 and EMS are combined for download. In this way, the multi-point retransmission of the VNF software version can be realized through multiple paths, and the download time of the VNF software version is reduced, thereby improving the efficiency and reliability of the VNF deployment.
  • FIG. 4 is a schematic flowchart 2 of a method for implementing automatic VNF deployment according to an embodiment of the present invention, where the first node is a node of any NFV network topology in which the VNF software version is to be installed, as shown in FIG. 4 .
  • the method for implementing automatic VNF deployment in the embodiment of the present invention includes:
  • Step S200 Send an update deployment path routing information table broadcast message to all second nodes; the second node represents a node in the NFV network topology that can provide a VNF software version;
  • Step S201 Receive deployment path routing information that is fed back by all the second nodes, and record the routing information in the deployment path routing information table to update the deployment path routing information table.
  • Step S202 Determine an available path set according to the updated deployment path routing information table, a preset path selection policy, and a VNF software version trust policy; the available path set includes one or more available paths;
  • Step S203 Download the VNF software version through the determined available path set.
  • the method further includes steps S203a to S203b:
  • Step S203a When all the available paths in the determined available path set are interrupted, if it is determined that the download of the VNF software version is not completed, the new available path is determined according to the real-time updated deployment path routing information table and the VNF software version trust policy. Path set
  • the determined available path set occurrence interruption includes a link interruption between the second node and the first node or a version status of the second node is changed from an available state to an unavailable state or the like.
  • the second node when there is a change in the version state of the second node, the second node sends its own deployment path routing information to all other nodes in real time; wherein all other nodes include the first node. And all other second nodes, so that all other nodes update the deployment path routing information table in real time.
  • Step S203b Continue to download the VNF software version through the determined new available path set.
  • the embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the method for implementing automatic VNF deployment according to the embodiment of the invention.
  • the method further includes:
  • Step A4a if it is determined that the VNF4 does not complete the download of the VNF software version, the new available path set EMS ⁇ VNF4 is determined according to the real-time updated deployment path routing information table and the VNF software version trust policy;
  • Step A4b VNF4 continues to download the VNF software version through the determined new available path set EMS ⁇ VNF4.
  • the VNF automatic deployment can still be implemented by the method described in the embodiment of the present invention, thereby improving the reliability and flexibility of the VNF deployment.
  • FIG. 5 is a schematic flowchart 3 of a method for implementing automatic VNF deployment according to an embodiment of the present invention, where the first node is a node of any NFV network topology in which a VNF software version is to be installed, as shown in FIG. 5 .
  • the method for implementing automatic VNF deployment in the embodiment of the present invention includes:
  • Step S300 Send an update deployment path routing information table broadcast message to all second nodes; the second node represents a node in the NFV network topology that can provide a VNF software version to be installed;
  • Step S301 Receive deployment path routing information fed back by all the second nodes and record them in the deployment path routing information table of the second node to implement update of the deployment path routing information table.
  • Step S302 Determine an available path set according to the updated deployment path routing information table, a preset path selection policy, and a VNF software version trust policy; the available path set includes one or more available paths;
  • Step S303 Download the VNF software version through the determined available path set.
  • the method further includes steps S303a to S303b:
  • Step S303a When a third node is added to the NFV network topology, the third node is The node for downloading the VNF software version for the first node determines that the download of the VNF software version is not completed, and then determines a new available path set according to the real-time updated deployment path routing information table and the VNF software version trust policy;
  • the third node when a third node is added to the NFV network topology, the third node also sends its own deployment path routing information to all other nodes in real time; wherein all other nodes include the first One node and all second nodes, so that all other nodes update the deployment path routing information table in real time.
  • Step S303b continue to download the VNF software version through the determined new available path set.
  • the embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the method for implementing automatic VNF deployment according to the embodiment of the invention.
  • the method further includes:
  • Step B4a After determining that the VNF4 does not complete the download of the VNF software version, the new available path set is determined according to the real-time updated deployment path routing information table and the VNF software version trust policy ⁇ VNF6 ⁇ VNF4, EMS ⁇ VNF4, VNF8 ⁇ VNF4 ⁇ ;
  • Step B4b VNF4 continues to download the VNF software version through the determined new available path set ⁇ VNF6 ⁇ VNF4, EMS ⁇ VNF4, VNF8 ⁇ VNF4 ⁇ .
  • the VNF4 downloads the VNF software version through the determined available path set, including the following two methods: 1) The downloaded VNF software version downloads different files from the second node VNF6, EMS, and VNF8 corresponding to the available path set ⁇ VNF6 ⁇ VNF4, EMS ⁇ VNF4, VNF8 ⁇ VNF4 ⁇ , and the files to be downloaded. The files in the VNF software version are combined and downloaded from the second nodes VNF6, EMS, and VNF8 corresponding to the available paths ⁇ VNF6 ⁇ VNF4, EMS ⁇ VNF4, VNF8 ⁇ VNF4 ⁇ . In this way, the multi-point retransmission of the VNF software version can be realized through multiple paths, and the download time of the VNF software version is reduced, thereby improving the efficiency and reliability of the VNF deployment.
  • FIG. 6 is a schematic flowchart of a method for implementing automatic VNF deployment according to an embodiment of the present invention. The method is applied to a first node, where the first node is a node of a NFV network topology to be installed with a VNF software version, as shown in FIG. 6 .
  • the method for implementing automatic VNF deployment in the embodiment of the present invention includes:
  • Step S400 Send an update deployment path routing information table broadcast message to all second nodes; the second node represents a node in the NFV network topology that can provide a VNF software version to be installed;
  • Step S401 Receive deployment path routing information fed back by all the second nodes and record them in the deployment path routing information table of the second node to implement update of the deployment path routing information table.
  • Step S402 Initiating an available path set arbitration request to the VNFM node according to the updated deployment path routing information table, the preset path selection policy, and the VNF software version trust policy failing to determine the available path set;
  • the VNFM node determines the available path set according to the preset arbitration policy; and when determining that the available path set is available, feeds back the determined available path set to the first node. .
  • the VNFM node determines an available path set according to a preset arbitration policy, including: the VNFM node determines an available download path according to a factor of a VNF software version of the first node and a next hop number of the path IP route.
  • Step S403 Receive an available path set fed back by the VNFM node.
  • Step S404 Download the VNF software version through the received available path set.
  • the embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the method for implementing automatic VNF deployment according to the embodiment of the invention.
  • FIG. 7 is a schematic structural diagram of a device for implementing VNF automatic deployment according to an embodiment of the present invention, which is applied to a first node, where the first node is a node of a NFV network topology to be installed with a VNF software version, as shown in FIG. 7
  • the device includes a transmitting unit 10, a receiving unit 11, a determining unit 12, and a downloading unit 13;
  • the sending unit 10 is configured to send an update deployment path routing information table broadcast message to all second nodes; the second node represents a node in the NFV network topology that can provide a VNF software version to be installed;
  • the receiving unit 11 is configured to receive the deployment path routing information fed back by all the second nodes and record the routing information in the deployment path routing information table to implement the update of the deployment path routing information table.
  • the determining unit 12 is configured to determine an available path set according to the updated deployment path routing information table, a preset path selection policy, and a VNF software version trust policy; the available path set includes one or more available paths;
  • the download unit 13 is configured to download the VNF software version through the determined available path set.
  • FIG. 8 is a schematic structural diagram of a device for implementing VNF automatic deployment according to an embodiment of the present invention.
  • the first node is a node of a NFV network topology to be installed with a VNF software version, as shown in FIG. 8 .
  • the device includes a transmitting unit 10, a receiving unit 11, a determining unit 12, and a downloading unit 13; the device further includes a first determining processing unit 131;
  • the sending unit 10 is configured to send an update deployment path routing information table broadcast message to all second nodes; the second node represents a node in the NFV network topology that can provide a VNF software version to be installed;
  • the receiving unit 11 is configured to receive deployment path routing information fed back by all the second nodes. And recorded in its own deployment path routing information table to implement the update of the deployment path routing information table;
  • the determining unit 12 is configured to determine an available path set according to the updated deployment path routing information table, a preset path selection policy, and a VNF software version trust policy; the available path set includes one or more available paths;
  • the download unit 13 is configured to download a VNF software version by using the determined available path set;
  • the first determining processing unit 131 is configured to, when it is determined that the download of the VNF software version is not completed, if it is determined that the download of the VNF software version is not completed, re-route the routing information table and the VNF according to the real-time updated deployment path.
  • the software version trust policy determines a new set of available paths;
  • the downloading unit 13 is further configured to continue to download the VNF software version by using the new available path set determined by the first determining processing unit 131.
  • FIG. 9 is a schematic structural diagram of a device for implementing automatic VNF deployment according to an embodiment of the present invention.
  • the first node is a node of a NFV network topology to be installed with a VNF software version, as shown in FIG. 9 .
  • the device includes a transmitting unit 10, a receiving unit 11, a determining unit 12, and a downloading unit 13; the device further includes a second determining processing unit 132;
  • the sending unit 10 is configured to send an update deployment path routing information table broadcast message to all second nodes; the second node represents a node in the NFV network topology that can provide a VNF software version to be installed;
  • the receiving unit 11 is configured to receive the deployment path routing information fed back by all the second nodes and record the routing information in the deployment path routing information table to implement the update of the deployment path routing information table.
  • the determining unit 12 is configured to determine an available path set according to the updated deployment path routing information table, a preset path selection policy, and a VNF software version trust policy; the available path set includes one or more available paths;
  • the download unit 13 is configured to download a VNF software version by using the determined available path set;
  • the second determining processing unit 132 is configured to: when a third node is added to the NFV network topology, the third node is a node that can be used for downloading the VNF software version by the first node, and determines that the VNF is not completed.
  • the software version is downloaded, and the new available path set is determined according to the real-time updated deployment path routing information table and the VNF software version trust policy;
  • the download unit 13 is further configured to continue to download the VNF software version by the new available path set determined by the second determination processing unit 132.
  • FIG. 10 is a schematic structural diagram of a device for implementing VNF automatic deployment according to an embodiment of the present invention, which is applied to a first node, where the first node is a node of a NFV network topology to be installed with a VNF software version, as shown in FIG. 10
  • the device includes a transmitting unit 10, a receiving unit 11, a determining unit 12, and a downloading unit 13;
  • the sending unit 10 is configured to send an update deployment path routing information table broadcast message to all second nodes; the second node represents a node in the NFV network topology that can provide a VNF software version to be installed; and is configured to be to the VNFM The node initiates an available path set arbitration request;
  • the receiving unit 11 is configured to receive the deployment path routing information fed back by all the second nodes and record the routing information in the deployment path routing information table to update the deployment path routing information table, and also receive the VNFM node feedback. Available path set;
  • the determining unit 12 is configured to determine, according to the updated deployment path routing information table, the preset path selection policy, and the VNF software version trust policy, that the available path set is empty;
  • the download unit 13 is configured to download the VNF software version according to the available path set received by the receiving unit 11.
  • the sending unit 10, the receiving unit 11, the determining unit 12, the downloading unit 13, the first determining processing unit 131, and the second determining processing unit 132 may all be implemented by the apparatus of the present invention.
  • Central processor in the node Central A processing unit (CPU), a microprocessor (Micro Processor Unit, MPU), a digital signal processor (DSP), or a Field Programmable Gate Array (FPGA).
  • CPU Central A processing unit
  • MPU Micro Processor Unit
  • DSP digital signal processor
  • FPGA Field Programmable Gate Array
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention can take the form of a hardware embodiment, a software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. Instructions are provided for implementation in the process The steps of a function or a plurality of processes and/or block diagrams of a function specified in a block or blocks.
  • the method for implementing automatic VNF deployment in the embodiment of the present invention is applied to a first node, where the first node is a node of any NFV network topology to be installed with a VNF software version; and the first node sends updated deployment path routing information.
  • the table broadcasts a message to all the second nodes; the second node characterizes the node in the NFV network topology that can provide the VNF software version to be installed; receives the deployment path routing information fed back by all the second nodes and records the deployment path route in itself
  • the update of the deployment path routing information table is implemented; the available path set is determined according to the updated deployment path routing information table, the preset path selection policy, and the VNF software version trust policy; the available path set includes one Or multiple available paths; download the VNF software version from the determined set of available paths.
  • the NFV network topology can meet the requirements of fast, flexible, high-performance, high-performance, and high reliability of VNF deployment.

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Abstract

本发明实施例提供一种实现虚拟网络功能(VNF)自动部署的方法、装置及计算机存储介质，应用于第一节点，所述第一节点为网络功能虚拟化NFV网络拓扑中任一待安装VNF软件版本的节点，所述方法包括：第一节点发送更新部署路径路由信息表广播消息至所有第二节点；所述第二节点表征所述NFV网络拓扑中可提供待安装VNF软件版本的节点；接收所有第二节点反馈的部署路径路由信息并记录在自身的部署路径路由信息表中，以实现对部署路径路由信息表的更新；根据更新后的部署路径路由信息表、预设的路径选择策略、以及VNF软件版本信任策略确定可用路径集；所述可用路径集包括一条或多条可用路径；通过所确定的可用路径集下载VNF软件版本。

Description

一种实现虚拟网络功能部署的方法、装置及存储介质 技术领域
本发明涉及网络功能虚拟化(Network Functions Virtualization，NFV)网络拓扑中虚拟网络功能(Virtualized Network Function，VNF)安装部署技术，尤其涉及一种实现VNF自动部署的方法、装置及计算机存储介质。
背景技术
在传统的电信网络系统中，网络功能通过专用硬件和网络设备来实现，使得运营商对不同设备商所提供的异构环境下的网络功能部署和运维存在很大困难。因此，运营商迫切希望构建全新的网络架构，以开放取代封闭、以通用替代专有，即将原本不同专有网元设备的网络功能提取出来虚拟化，并运行在统一的通用服务器平台上。
目前，欧洲电信标准化协会(European Telecommunications Standards Institute，ETSI)提出了NFV网络拓扑架构。在所述NFV网络拓扑架构中，通过VNF实现网络功能与网络功能虚拟化基础设施(Network Functions Virtualization Infrastructure，NFVI)的分离，得以实现软件和硬件的解耦。在NFV网络拓扑架构中，要求实现VNF部署。其中，所述VNF部署包括各网元对VNF软件版本的安装或升级。
在NFV网络拓扑架构中，传统的VNF部署一般通过如图1所示的网元管理系统(Element Management System，EMS)单一节点(注，可能也存在其他单一节点，本文只是以EMS为例)进行集中安装部署。传统的VNF部署方式存在以下缺点：
1)所有的VNF软件版本均通过EMS集中下载和安装部署，这样很容易产生单点故障，即当EMS与待安装VNF软件版本的节点之间存在链路 通信异常时会导致部署失败。
2)当多个待安装VNF软件版本的节点并行部署时存在多个节点同时从EMS下载VNF软件版本情况，这样，使得EMS的网络拥塞，导致各节点实现VNF部署的时间长，从而增加因超时或EMS负荷过重导致部署失败的风险。
3)网络功能新建或扩容时需要人工干预，需要先安装调试节点(即网元)前台，再接入EMS进行部署开通新的功能，存在部署复杂，周期长的弊端。
综上所述，在实现VNF部署过程中，现有通过EMS集中安装部署的方式会严重影响VNF部署的灵活性、快捷性、稳定性、及其可靠性，从而无法满足NFV网络拓扑架构对VNF部署的快捷灵活、自动化、高性能、及其高可靠的要求。
发明内容
本发明实施例提供一种实现VNF自动部署的方法、装置及计算机存储介质，能够满足NFV网络拓扑架构对VNF部署的快捷灵活、自动化、高性能、及其高可靠的要求。
本发明实施例的技术方案是这样实现的：
本发明实施例提供一种实现VNF自动部署的方法，应用于第一节点，所述第一节点为NFV网络拓扑中任一待安装VNF软件版本的节点，所述方法包括：
发送更新部署路径路由信息表广播消息至所有第二节点；所述第二节点表征所述NFV网络拓扑中可提供待安装VNF软件版本的节点；
接收所有第二节点反馈的部署路径路由信息并记录在自身的部署路径路由信息表中，以实现对部署路径路由信息表的更新；
根据更新后的部署路径路由信息表、预设的路径选择策略、以及VNF 软件版本信任策略确定可用路径集；所述可用路径集包括一条或多条可用路径；
通过所确定的可用路径集下载VNF软件版本。
在一实施例中，在所述通过所确定的可用路径集下载VNF软件版本的过程中，所述方法还包括：
当所确定的可用路径集中的所有可用路径均发生中断时，若经判断确定未完成VNF软件版本的下载，则重新根据实时更新的部署路径路由信息表和VNF软件版本信任策略确定新的可用路径集；
通过所确定的新的可用路径集继续下载VNF软件版本。
在一实施例中，在所述通过所确定的可用路径集下载VNF软件版本的过程中，所述方法还包括：
当NFV网络拓扑中新增第三节点时，所述第三节点为可用于所述第一节点实现VNF软件版本下载的节点，经判断确定未完成VNF软件版本的下载，则重新根据实时更新的部署路径路由信息表和VNF软件版本信任策略确定新的可用路径集；
通过所确定的新的可用路径集继续下载VNF软件版本。
在一实施例中，所述方法还包括：当根据更新后的部署路径路由信息表、预设的路径选择策略、以及VNF软件版本信任策略未确定出可用路径集时，向虚拟网络功能管理(Virtualized Network Function Manager，VNFM)节点发起可用路径集仲裁请求；
接收VNFM节点反馈的可用路径集；
通过所接收到的可用路径集下载VNF软件版本。
在一实施例中，所述预设的路径选择策略包括所述第二节点的可用带宽大于带宽阈值，或所述第二节点的可用带宽大于带宽阈值且第一节点和第二节点的下一跳数小于或者等于跳数阈值；所述带宽阈值为第一节点下 载VNF软件版本所需的最小带宽。
本发明实施例还提供一种计算机存储介质，所述计算机存储介质中存储有计算机可执行指令，所述计算机可执行指令用于执行本发明实施例所述实现VNF自动部署的方法。
本发明实施例还提供一种实现VNF自动部署的装置，应用于第一节点，所述第一节点为NFV网络拓扑中任一待安装VNF软件版本的节点，所述装置包括发送单元、接收单元、确定单元、以及下载单元；其中，
所述发送单元，配置为发送更新部署路径路由信息表广播消息至所有第二节点；所述第二节点表征所述NFV网络拓扑中可提供待安装VNF软件版本的节点；
所述接收单元，配置为接收所有第二节点反馈的部署路径路由信息并记录在自身的部署路径路由信息表中，以实现对部署路径路由信息表的更新；
所述确定单元，配置为根据更新后的部署路径路由信息表、预设的路径选择策略、以及VNF软件版本信任策略确定可用路径集；所述可用路径集包括一条或多条可用路径；
所述下载单元，配置为通过所确定的可用路径集下载VNF软件版本。
在一实施例中，所述装置还包括第一判断处理单元；其中，
所述第一判断处理单元，配置为当所确定的可用路径集中的所有可用路径均发生中断时，若经判断确定未完成VNF软件版本的下载，则重新根据实时更新的部署路径路由信息表和VNF软件版本信任策略确定新的可用路径集；
相应地，所述下载单元，还配置为通过所述第一判断处理单元所确定的新的可用路径集继续下载VNF软件版本。
在一实施例中，所述装置还包括第二判断处理单元；其中，
所述第二判断处理单元，配置为当NFV网络拓扑中新增第三节点时，所述第三节点为可用于所述第一节点实现VNF软件版本下载的节点，经判断确定未完成VNF软件版本的下载，则重新根据实时更新的部署路径路由信息表和VNF软件版本信任策略确定新的可用路径集；
相应地，所述下载单元，还配置为通过所述第二判断处理单元所确定的新的可用路径集继续下载VNF软件版本。
在一实施例中，所述发送单元，还配置为当所述确定单元根据更新后的部署路径路由信息表、预设的路径选择策略、以及VNF软件版本信任策略未确定出可用路径集时，向虚拟网络功能管理VNFM节点发起可用路径集仲裁请求；
所述接收单元，还配置为接收VNFM节点反馈的可用路径集；
所述下载单元，还配置为根据所述接收单元所接收到的可用路径集下载VNF软件版本。
本发明实施例所提供的实现VNF自动部署的方法、装置及计算机存储介质，应用于第一节点，所述第一节点为NFV网络拓扑中任一待安装VNF软件版本的节点；所述第一节点发送更新部署路径路由信息表广播消息至所有第二节点；所述第二节点表征所述NFV网络拓扑中可提供待安装VNF软件版本的节点；接收所有第二节点反馈的部署路径路由信息并记录在自身的部署路径路由信息表中，以实现对部署路径路由信息表的更新；根据更新后的部署路径路由信息表、预设的路径选择策略、以及VNF软件版本信任策略确定可用路径集；所述可用路径集包括一条或多条可用路径；通过所确定的可用路径集下载VNF软件版本。如此，通过本发明实施例所述的VNF自动部署方法，能够满足NFV网络拓扑架构对VNF部署的快捷灵活、自动化、高性能、及其高可靠的要求。
附图说明
图1为相关技术中实现VNF部署的NFV网络拓扑架构的组成结构示意图；
图2为本发明实施例实现VNF自动部署的方法的流程示意图一；
图3为本发明实施例实现VNF自动部署的NFV网络拓扑架构的组成结构示意图；
图4为本发明实施例实现VNF自动部署的方法的流程示意图二；
图5为本发明实施例实现VNF自动部署的方法的流程示意图三；
图6为本发明实施例实现VNF自动部署的方法的流程示意图四；
图7为本发明实施例实现VNF自动部署的装置的组成结构示意图一；
图8为本发明实施例实现VNF自动部署的装置的组成结构示意图二；
图9为本发明实施例实现VNF自动部署的装置的组成结构示意图三；
图10为本发明实施例实现VNF自动部署的装置的组成结构示意图四。
具体实施方式
在本发明实施例中，第一节点发送更新部署路径路由信息表广播消息至所有第二节点，所述第二节点表征所述NFV网络拓扑中可提供待安装VNF软件版本的节点；接收所有第二节点反馈的部署路径路由信息并记录在自身的部署路径路由信息表中，以实现对部署路径路由信息表的更新；根据更新后的部署路径路由信息表、预设的路径选择策略、以及VNF软件版本信任策略确定可用路径集；所述可用路径集包括一条或多条可用路径；通过所确定的可用路径集下载VNF软件版本。
这里，所述第一节点为NFV网络拓扑中任一待安装VNF软件版本的节点。
下面结合附图及具体实施例对本发明再作进一步详细的说明。
图2为本发明实施例实现VNF自动部署的方法的流程示意图一，应用 于第一节点，所述第一节点为NFV网络拓扑中任一待安装VNF软件版本的节点，如图2所示，本发明实施例实现VNF自动部署的方法包括：
步骤S100：发送更新部署路径路由信息表广播消息至所有第二节点；所述第二节点表征所述NFV网络拓扑中可提供待安装VNF软件版本的节点；
需要说明的是，在如图3所示的NFV网络拓扑中，在本发明实施例实现VNF自动部署的方法之前，网络功能虚拟化编排和管理(Network Functions Virtualization Orchestrator，NFVO)节点与VNFM节点配合实现VNF部署所需虚拟机的创建，以指定虚拟机启动整个NFV网络拓扑实现VNF部署的系统机制。此时，当第一节点经判断确定自身未安装VNF软件版本时，执行步骤S100。
在执行步骤S100之后，当所述第二节点接收到更新部署路径路由信息表广播消息时，及时向所述第一节点反馈部署路径路由信息。
步骤S101：接收所有第二节点反馈的部署路径路由信息并记录在自身的部署路径路由信息表中，以实现对部署路径路由信息表的更新；
这里，所述第二节点反馈的部署路径路由信息包括所述第二节点的拓扑节点号、可对外提供的软件版本信息、剩余带宽、提供对外下载版本的最大用户数、以及当前接入用户数等；其中，所述可对外提供的软件版本信息包括VNF网元类型和版本号、版本文件签名、版本状态、以及版本循环冗余校验码(Cyclic Redundancy Check，CRC)校验等。
步骤S102：根据更新后的部署路径路由信息表、预设的路径选择策略、以及VNF软件版本信任策略确定可用路径集；所述可用路径集包括一条或多条可用路径；
这里，所述预设路径选择策略包括所述第二节点的可用带宽大于带宽阈值，或所述第二节点的可用带宽大于带宽阈值且第一节点和第二节点的 下一跳数小于等于跳数阈值等；其中，所述带宽阈值为第一节点下载VNF软件版本所需的最小带宽。
这里，所述VNF软件版本信任策略包括第一节点在VNF部署是所根据的VNF网元类型和版本号、版本文件签名、版本状态、以及版本CRC校验之一或任意组合等。
具体地，当所述预设路径选择策略包括所述第二节点的可用带宽大于带宽阈值时，步骤S102根据更新后的部署路径路由信息表、预设的路径选择策略、以及VNF软件版本信任策略确定可用路径集包括：
步骤1a，遍历整个更新后的部署路径路由信息表，筛选与VNF软件版本信任策略相匹配的所有第二节点；
步骤2a，在更新后的部署路径路由信息表中查找所筛选得到的第二节点的剩余带宽，并确定出所述第二节点的可用带宽；其中，所述第二节点的可用带宽为所述剩余带宽的50％。
步骤3a，判断是否存在满足预设路径选择策略的第二节点，即符合可用带宽大于带宽阈值的第二节点，得到判断结果；
步骤4a，当所述判断结果为存在满足预设路径选择策略的第二节点时，将满足预设选择策略的每一第二节点与第一节点之间的链路均确定为一条可用路径，所述可用路径的组合称作可用路径集。
这里，需要说明的是，当所述判断结果为不存在满足预设路径选择策略的第二节点时，即未确定出可用路径集；此时，第一节点可以进一步向VNFM节点发起可用路径集仲裁请求，以使VNFM节点根据预设的仲裁策略来确定可用路径集。
具体地，当所述预设路径选择策略包括所述第二节点的可用带宽大于带宽阈值且第一节点和第二节点的下一跳数小于或者等于跳数阈值时，步骤S102根据更新后的部署路径路由信息表、预设的路径选择策略、以及 VNF软件版本信任策略确定可用路径集包括：
步骤1b，遍历整个更新后的部署路径路由信息表，筛选与VNF软件版本信任策略相匹配的所有第二节点；
步骤2b，在更新后的部署路径路由信息表中查找所筛选得到的第二节点和第一节点的下一跳数；
步骤3b，在更新后的部署路径路由信息表中查找所筛选得到的第二节点的剩余带宽，并确定出所述第二节点的可用带宽；其中，所述第二节点的可用带宽为所述剩余带宽的50％。
步骤4b，判断是否存在满足预设路径选择策略的第二节点，即符合可用带宽大于带宽阈值且第一节点和第二节点的下一跳数小于或者等于跳数阈值的第二节点，得到判断结果；
步骤5b，当所述判断结果为存在满足预设路径选择策略的第二节点时，将满足预设选择策略的每一第二节点与第一节点之间的链路均确定为一条可用路径，所述可以路径的组合称作可用路径集。
这里，需要说明的是，当所述判断结果为不存在满足预设路径选择策略的第二节点时，即未确定出可用路径集；此时，第一节点可以进一步向VNFM节点发起可用路径集仲裁请求，以使VNFM节点根据预设的仲裁策略来确定可用路径集。
步骤S103：通过所确定的可用路径集下载VNF软件版本。
这里，当所述可用路径集包括多条可用路径时，通过所确定的可用路径集下载VNF软件版本包括如下两种方式：1)将待下载的VNF软件版本以文件为粒度从多条可用路径对应的多个第二节点中分别下载不同的文件；2)将待下载的VNF软件版本中的文件从多条可用路径对应的多个第二节点中合并下载。如此，通过多条路径得以实现对VNF软件版本的多点续传，减少VNF软件版本的下载时间，从而提高VNF部署效率和可靠性。 步骤S104：下载完成后，安装所下载的VNF软件版本。
需要说明的是，在本发明实施例中，在所述第一节点通过所确定的可用路径集下载VNF软件版本之前，所述第一节点会实时向NFV网络拓扑中的所有第二节点发送所确定的可用路径集信息，以使所有第二节点实时更新自身的部署路径路由信息表。
进一步地，在步骤S103之后，由于所述第一节点可以在待部署的VNF软件版本下载完成后，安装所下载的VNF软件版本。如此，通过本发明实施例，所述第一节点能够完成对VNF软件版本的自动安装部署。此时，第一节点会实时向NFV网络拓扑中的所有第二节点发送增加所述第一节点为可用的路径信息请求，以使所有第二节点实时更新自身的部署路径路由信息表。
本发明实施例还提供一种计算机存储介质，所述计算机存储介质中存储有计算机可执行指令，所述计算机可执行指令用于执行本发明实施例所述实现VNF自动部署的方法。
下面结合图2所示的NFV网络拓扑和具体示例一对本发明实施例实现VNF自动部署的方法流程进行举例说明。
具体示例一：
在如图3所示的NFV网络拓扑中存在两个NFVI资源池，所述NFVI资源池包括省中心资源池和地市资源池。所述省中心资源池包括NFVO、VNFM、EMS、VNF1、VNF2网元，所述地市资源池包括VNF3～VNF7节点。其中，VNF1、VNF3、以及VNF7为移动性管理实体(Mobility Management Entity，MME)网元，VNF2、VNF4、VNF5、以及VNF6为服务性通用分组无线服务(GPRS)支持节点(Serving GPRS Support Node，SGSN)网元。
在本示例一中，假设VNF4和VNF7未安装VNF软件版本，且所确定的可用路径集仅包括一条可用路径。
这里，在实现本发明实施例所述的VNF自动部署之前，需要通过NFVO节点与VNFM节点配合实现VNF部署所需虚拟机的创建，以指定虚拟机启动如图2所示的NFV网络拓扑实现VNF部署的系统机制；之后，VNFM节点启动VNF4所在的带有启动VNF软件版本下载功能的虚拟机，VNF4经判断确定自身未安装VNF软件版本，即VNF4为第一节点，即待安装VNF软件版本的节点。
这时，VNF4实现VNF自动部署包括如下步骤：
步骤A1：发送更新部署路径路由信息表广播消息至所有第二节点；所述第二节点表征所述NFV网络拓扑中可提供待安装VNF软件版本的节点；
这里，在图2所示的NFV网络拓扑中，所示第二节点包括EMS、VNF1、VNF2、VNF3、VNF5、VNF6等。
步骤A2：接收所有第二节点反馈的部署路径路由信息并记录在自身的部署路径路由信息表中，以实现对部署路径路由信息表的更新；这里，更新后的部署路径路由信息表如下表1所示。
表1
Figure PCTCN2015083042-appb-000001
Figure PCTCN2015083042-appb-000002
步骤A3：VNF4根据更新后的部署路径路由信息表(如表1)、预设的路径选择策略、以及VNF软件版本信任策略确定可用路径集；
具体地，遍历整个表1，筛选出与VNF4软件版本信任策略所包含的VNF网元类型和版本号SGSNVERA2.0相匹配的所有第二节点，其中，所述第二节点包括EMS和VNF6；在表1中查找所筛选得到的第二节点EMS和VNF6分别与第一节点VNF4的下一跳数为3和1；同时，在表1中依次查找出所筛选得到的第二节点EMS和VNF6的剩余带宽为800M和400M；进一步确定出所述第二节点EMS和VNF6的可用带宽为800M*50％＝400M和400M*50％＝200M；经判断确定符合预设路径选择策略(即可用带宽大于带宽阈值200M且第一节点和第二节点的下一跳数小于等于1)的第二节点为VNF6，故将VNF6→VNF4这条链路确定为可用路径集；
此时，在VNF4通过所确定的可用路径集VNF6→VNF4下载VNF软件版本之前，VNF4会实时向NFV网络拓扑中的所有第二节点发送所确定的可用路径集信息，以使所有第二节点实时更新自身的部署路径路由信息表，更新后的部署路径路由信息表如下表2所示。
表2
Figure PCTCN2015083042-appb-000003
Figure PCTCN2015083042-appb-000004
步骤A4：通过所确定的VNF6→VNF4下载VNF软件版本；
步骤A5：下载完成后，安装VNF软件版本。
在步骤A5之后，由于VNF4的VNF软件版本已自动安装部署完成。此时，VNF4会实时向NFV网络拓扑中的所有第二节点发送增加VNF4为可用的路径信息请求，以使所有第二节点实时更新自身的部署路径路由信息表，更新后的部署路径路由信息表如下表3所示。
表3
Figure PCTCN2015083042-appb-000005
Figure PCTCN2015083042-appb-000006
下面结合图2所示的NFV网络拓扑和具体示例二对本发明实施例实现VNF自动部署的方法流程进行举例说明。
具体示例二：
在本示例二中，假设VNF4和VNF7未安装VNF软件版本，且所确定的可用路径集包括多条可用路径。
VNF4实现VNF自动部署包括如下步骤：
步骤B1：发送更新部署路径路由信息表广播消息至所有第二节点；所述第二节点表征所述NFV网络拓扑中可提供待安装VNF软件版本的节点；
这里，在图2所示的NFV网络拓扑中，所示第二节点包括EMS、VNF1、VNF2、VNF3、VNF5、VNF6等。
步骤B2：接收所有第二节点反馈的部署路径路由信息并记录在自身的部署路径路由信息表中，以实现对部署路径路由信息表的更新；
步骤B3：VNF4根据更新后的部署路径路由信息表、预设的路径选择策略、以及VNF软件版本信任策略确定可用路径集；
具体地，遍历整个表1，筛选出与VNF4软件版本信任策略所包含的VNF网元类型和版本号SGSNVERA2.0相匹配的所有第二节点，其中，所述第二节点包括EMS和VNF6；在表1中依次查找出所筛选得到的第二节点EMS和VNF6的剩余带宽为800M和400M；进一步确定出所述第二节点EMS和VNF6的可用带宽为800M*50％＝400M和400M*50％＝200M；此时，可用链路VNF6→VNF4和EMS→VNF4分配给VNF4的可用带宽共为600M，经判断确定符合预设路径选择策略(即可用带宽大于带宽阈值500M)的第二节点为VNF6和EMS，故将VNF6→VNF4和EMS→VNF4 这两条链路确定为可用路径集；
此时，在VNF4通过所确定的可用路径集VNF6→VNF4和EMS→→VNF4下载VNF软件版本之前，VNF4会实时向NFV网络拓扑中的所有第二节点发送所确定的可用路径集信息，以使所有第二节点实时更新自身的部署路径路由信息表。
步骤B4：通过所确定的VNF6→VNF4和EMS→VNF4下载VNF软件版本；
步骤B5：下载完成后，安装VNF软件版本。
在步骤B5之后，由于VNF4的VNF软件版本已自动安装部署完成。此时，VNF4会实时向NFV网络拓扑中的所有第二节点发送增加VNF4为可用的路径信息请求，以使所有第二节点实时更新自身的部署路径路由信息表。
在本示例二中，由于所述可用路径集包括多条可用路径，因此，VNF4通过所确定的可用路径集下载VNF软件版本包括如下两种方式：1)将待下载的VNF软件版本以文件为粒度从可用路径VNF6→VNF4和EMS→VNF4对应的第二节点VNF6和EMS中分别下载不同的文件；2)将待下载的VNF软件版本中的文件从可用路径VNF6→VNF4和EMS→VNF4对应的第二节点VNF6和EMS中合并下载。如此，通过多条路径得以实现对VNF软件版本的多点续传，减少VNF软件版本的下载时间，从而提高VNF部署效率和可靠性。
图4为本发明实施例实现VNF自动部署的方法的流程示意图二，应用于第一节点，所述第一节点为NFV网络拓扑中任一待安装VNF软件版本的节点，如图4所示，本发明实施例实现VNF自动部署的方法包括：
步骤S200：发送更新部署路径路由信息表广播消息至所有第二节点；所述第二节点表征所述NFV网络拓扑中可提供安装VNF软件版本的节点；
步骤S201：接收所有第二节点反馈的部署路径路由信息并记录在自身的部署路径路由信息表中，以实现对部署路径路由信息表的更新；
步骤S202：根据更新后的部署路径路由信息表、预设的路径选择策略、以及VNF软件版本信任策略确定可用路径集；所述可用路径集包括一条或多条可用路径；
步骤S203：通过所确定的可用路径集下载VNF软件版本。在本发明实施例中，在步骤S203通过所确定的可用路径集下载VNF软件版本的过程中，所述方法还包括步骤S203a～S203b：
步骤S203a：当所确定的可用路径集中所有可用路径均发生中断时，若经判断确定未完成VNF软件版本的下载，则重新根据实时更新的部署路径路由信息表和VNF软件版本信任策略确定新的可用路径集；
这里，所述所确定的可用路径集发生中断包括所述第二节点与第一节点之间的链路中断或所述第二节点的版本状态从可用状态转换为不可用状态等。
需要说明的是，在NFV网络拓扑中，当存在有第二节点的版本状态发生变化时，第二节点会实时发送自身的部署路径路由信息至所有其他节点；其中，所有其他节点包括第一节点和所有其他第二节点，以使所有其他节点实时更新部署路径路由信息表。
步骤S203b：通过所确定的新的可用路径集继续下载VNF软件版本。
本发明实施例还提供一种计算机存储介质，所述计算机存储介质中存储有计算机可执行指令，所述计算机可执行指令用于执行本发明实施例所述实现VNF自动部署的方法。
下面结合图3所示的NFV网络拓扑和具体示例三对本发明实施例实现VNF自动部署的方法流程进行举例说明。
具体示例三：
在示例一执行步骤A4通过所确定的VNF6→VNF4下载VNF软件版本的过程中，当所述VNF6→VNF4链路发生中断时，所述方法进一步包括：
步骤A4a，若经判断确定VNF4未完成VNF软件版本的下载，则重新根据实时更新的部署路径路由信息表和VNF软件版本信任策略确定得到新的可用路径集EMS→VNF4；
步骤A4b：VNF4通过所确定的新的可用路径集EMS→VNF4继续下载VNF软件版本。
如此，在NFV网络拓扑中，当出现可用路径集中断的情况下，通过本发明实施例所述的方法仍然可以实现VNF自动部署，从而提高了VNF部署的可靠性和灵活性。
图5为本发明实施例实现VNF自动部署的方法的流程示意图三，应用于第一节点，所述第一节点为NFV网络拓扑中任一待安装VNF软件版本的节点，如图5所示，本发明实施例实现VNF自动部署的方法包括：
步骤S300：发送更新部署路径路由信息表广播消息至所有第二节点；所述第二节点表征所述NFV网络拓扑中可提供待安装VNF软件版本的节点；
步骤S301：接收所有第二节点反馈的部署路径路由信息并记录在自身的部署路径路由信息表中，以实现对部署路径路由信息表的更新；
步骤S302：根据更新后的部署路径路由信息表、预设的路径选择策略、以及VNF软件版本信任策略确定可用路径集；所述可用路径集包括一条或多条可用路径；
步骤S303：通过所确定的可用路径集下载VNF软件版本。
在本发明实施例中，在步骤S303通过所确定的可用路径集下载VNF软件版本的过程中，所述方法还包括步骤S303a～S303b：
步骤S303a：当NFV网络拓扑中新增第三节点时，所述第三节点为可 用于所述第一节点实现VNF软件版本下载的节点，经判断确定未完成VNF软件版本的下载，则重新根据实时更新的部署路径路由信息表和VNF软件版本信任策略确定新的可用路径集；
需要说明的是，在NFV网络拓扑中，当NFV网络拓扑中新增第三节点时，所述第三节点同样会实时发送自身的部署路径路由信息至所有其他节点；其中，所有其他节点包括第一节点和所有第二节点，以使所有其他节点实时更新部署路径路由信息表。
步骤S303b：通过所确定的新的可用路径集继续下载VNF软件版本。
本发明实施例还提供一种计算机存储介质，所述计算机存储介质中存储有计算机可执行指令，所述计算机可执行指令用于执行本发明实施例所述实现VNF自动部署的方法。
下面结合图3所示的NFV网络拓扑和具体示例四对本发明实施例实现VNF自动部署的方法流程进行举例说明。
具体示例四：
在示例二执行步骤B4通过所确定的VNF6→VNF4和EMS→VNF4下载VNF软件版本的过程中，当NFV网络拓扑中新增第三节点VNF8时，所述第三节点VNF8为可用于VNF4实现VNF软件版本下载的节点，所述方法还包括：
步骤B4a：经判断确定VNF4未完成VNF软件版本的下载，则重新根据实时更新的部署路径路由信息表和VNF软件版本信任策略确定新的可用路径集{VNF6→VNF4，EMS→VNF4，VNF8→VNF4}；
步骤B4b：VNF4通过所确定的新的可用路径集{VNF6→VNF4，EMS→VNF4，VNF8→VNF4}继续下载VNF软件版本。
在本示例四中，由于所述可用路径集包括多条可用路径，因此，VNF4通过所确定的可用路径集下载VNF软件版本包括如下两种方式：1)将待 下载的VNF软件版本以文件为粒度从可用路径集{VNF6→VNF4，EMS→VNF4，VNF8→VNF4}对应的第二节点VNF6、EMS、以及VNF8中分别下载不同的文件；2)将待下载的VNF软件版本中的文件从可用路径{VNF6→VNF4，EMS→VNF4，VNF8→VNF4}对应的第二节点VNF6、EMS、以及VNF8中合并下载。如此，通过多条路径得以实现对VNF软件版本的多点续传，减少VNF软件版本的下载时间，从而提高VNF部署效率和可靠性。
图6为本发明实施例实现VNF自动部署的方法的流程示意图四，应用于第一节点，所述第一节点为NFV网络拓扑中任一待安装VNF软件版本的节点，如图6所示，本发明实施例实现VNF自动部署的方法包括：
步骤S400：发送更新部署路径路由信息表广播消息至所有第二节点；所述第二节点表征所述NFV网络拓扑中可提供待安装VNF软件版本的节点；
步骤S401：接收所有第二节点反馈的部署路径路由信息并记录在自身的部署路径路由信息表中，以实现对部署路径路由信息表的更新；
步骤S402：根据更新后的部署路径路由信息表、预设的路径选择策略、以及VNF软件版本信任策略未确定出可用路径集时，向VNFM节点发起可用路径集仲裁请求；
这里，当所述VNFM节点接收到可用路径集仲裁请求时，VNFM节点会根据预设的仲裁策略来确定可用路径集；在确定有可用路径集时，向第一节点反馈所确定的可用路径集。其中，所述VNFM节点根据预设的仲裁策略来确定可用路径集，包括：所述VNFM节点根据第一节点的VNF软件版本和路径IP路由下一跳数等因子来决策可用的下载路径。
步骤S403：接收VNFM节点反馈的可用路径集；
步骤S404：通过所接收到的可用路径集下载VNF软件版本。
本发明实施例还提供一种计算机存储介质，所述计算机存储介质中存储有计算机可执行指令，所述计算机可执行指令用于执行本发明实施例所述实现VNF自动部署的方法。
图7为本发明实施例实现VNF自动部署的装置的组成结构示意图一，应用于第一节点，所述第一节点为NFV网络拓扑中任一待安装VNF软件版本的节点，如图7所示，所述装置包括发送单元10、接收单元11、确定单元12、以及下载单元13；其中，
所述发送单元10，配置为发送更新部署路径路由信息表广播消息至所有第二节点；所述第二节点表征所述NFV网络拓扑中可提供待安装VNF软件版本的节点；
所述接收单元11，配置为接收所有第二节点反馈的部署路径路由信息并记录在自身的部署路径路由信息表中，以实现对部署路径路由信息表的更新；
所述确定单元12，配置为根据更新后的部署路径路由信息表、预设的路径选择策略、以及VNF软件版本信任策略确定可用路径集；所述可用路径集包括一条或多条可用路径；
所述下载单元13，配置为通过所确定的可用路径集下载VNF软件版本。
图8为本发明实施例实现VNF自动部署的装置的组成结构示意图二，应用于第一节点，所述第一节点为NFV网络拓扑中任一待安装VNF软件版本的节点，如图8所示，所述装置包括发送单元10、接收单元11、确定单元12、以及下载单元13；所述装置还包括第一判断处理单元131；其中，
所述发送单元10，配置为发送更新部署路径路由信息表广播消息至所有第二节点；所述第二节点表征所述NFV网络拓扑中可提供待安装VNF软件版本的节点；
所述接收单元11，配置为接收所有第二节点反馈的部署路径路由信息 并记录在自身的部署路径路由信息表中，以实现对部署路径路由信息表的更新；
所述确定单元12，配置为根据更新后的部署路径路由信息表、预设的路径选择策略、以及VNF软件版本信任策略确定可用路径集；所述可用路径集包括一条或多条可用路径；
所述下载单元13，配置为通过所确定的可用路径集下载VNF软件版本；
所述第一判断处理单元131，配置为当所确定的可用路径集中所有可用路径均发生中断时，若经判断确定未完成VNF软件版本的下载，则重新根据实时更新的部署路径路由信息表和VNF软件版本信任策略确定新的可用路径集；
相应地，所述下载单元13，还配置为通过所述第一判断处理单元131所确定的新的可用路径集继续下载VNF软件版本。
图9为本发明实施例实现VNF自动部署的装置的组成结构示意图三，应用于第一节点，所述第一节点为NFV网络拓扑中任一待安装VNF软件版本的节点，如图9所示，所述装置包括发送单元10、接收单元11、确定单元12、以及下载单元13；所述装置还包括第二判断处理单元132；其中，
所述发送单元10，配置为发送更新部署路径路由信息表广播消息至所有第二节点；所述第二节点表征所述NFV网络拓扑中可提供待安装VNF软件版本的节点；
所述接收单元11，配置为接收所有第二节点反馈的部署路径路由信息并记录在自身的部署路径路由信息表中，以实现对部署路径路由信息表的更新；
所述确定单元12，配置为根据更新后的部署路径路由信息表、预设的路径选择策略、以及VNF软件版本信任策略确定可用路径集；所述可用路径集包括一条或多条可用路径；
所述下载单元13，配置为通过所确定的可用路径集下载VNF软件版本；
所述第二判断处理单元132，配置为当NFV网络拓扑中新增第三节点时，所述第三节点为可用于所述第一节点实现VNF软件版本下载的节点，经判断确定未完成VNF软件版本的下载，则重新根据实时更新的部署路径路由信息表和VNF软件版本信任策略确定新的可用路径集；
相应地，所述下载单元13，还配置为通过所述第二判断处理单元132所确定的新的可用路径集继续下载VNF软件版本。
图10为本发明实施例实现VNF自动部署的装置的组成结构示意图四，应用于第一节点，所述第一节点为NFV网络拓扑中任一待安装VNF软件版本的节点，如图10所示，所述装置包括发送单元10、接收单元11、确定单元12、以及下载单元13；其中，
所述发送单元10，配置为发送更新部署路径路由信息表广播消息至所有第二节点；所述第二节点表征所述NFV网络拓扑中可提供待安装VNF软件版本的节点；还配置为向VNFM节点发起可用路径集仲裁请求；
所述接收单元11，配置为接收所有第二节点反馈的部署路径路由信息并记录在自身的部署路径路由信息表中，以实现对部署路径路由信息表的更新；还用于接收VNFM节点反馈的可用路径集；
所述确定单元12，配置为根据更新后的部署路径路由信息表、预设的路径选择策略、以及VNF软件版本信任策略未确定出可用路径集，即所确定出的可用路径集为空；
所述下载单元13，配置为根据所述接收单元11所接收到的可用路径集下载VNF软件版本。
在实际应用中，所述发送单元10、接收单元11、确定单元12、下载单元13、第一判断处理单元131、以及第二判断处理单元132均可由本发明实施例实现VNF自动部署的装置所属的节点中的中央处理器(Central  Processing Unit，CPU)、微处理器(Micro Processor Unit，MPU)、数字信号处理器(Digital Signal Processor，DSP)、或现场可编程门阵列(Field Programmable Gate Array，FPGA)等实现。
本发明实施例所记载的技术方案之间，在不冲突的情况下，可以任意组合。
本领域内的技术人员应明白，本发明的实施例可提供为方法、系统、或计算机程序产品。因此，本发明可采用硬件实施例、软件实施例、或结合软件和硬件方面的实施例的形式。而且，本发明可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程 图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。
工业实用性
本发明实施例所述实现VNF自动部署的方法，应用于第一节点，所述第一节点为NFV网络拓扑中任一待安装VNF软件版本的节点；所述第一节点发送更新部署路径路由信息表广播消息至所有第二节点；所述第二节点表征所述NFV网络拓扑中可提供待安装VNF软件版本的节点；接收所有第二节点反馈的部署路径路由信息并记录在自身的部署路径路由信息表中，以实现对部署路径路由信息表的更新；根据更新后的部署路径路由信息表、预设的路径选择策略、以及VNF软件版本信任策略确定可用路径集；所述可用路径集包括一条或多条可用路径；通过所确定的可用路径集下载VNF软件版本。如此，能够满足NFV网络拓扑架构对VNF部署的快捷灵活、自动化、高性能、及其高可靠的要求。

Claims (11)

  1. 一种实现虚拟网络功能VNF自动部署的方法，应用于第一节点，所述第一节点为网络功能虚拟化NFV网络拓扑中任一待安装VNF软件版本的节点，所述方法包括：
    发送更新部署路径路由信息表广播消息至所有第二节点；所述第二节点表征所述NFV网络拓扑中可提供待安装VNF软件版本的节点；
    接收所有第二节点反馈的部署路径路由信息并记录在自身的部署路径路由信息表中，以实现对部署路径路由信息表的更新；
    根据更新后的部署路径路由信息表、预设的路径选择策略、以及VNF软件版本信任策略确定可用路径集；所述可用路径集包括一条或多条可用路径；
    通过所确定的可用路径集下载VNF软件版本。
  2. 根据权利要求1所述的方法，其中，在所述通过所确定的可用路径集下载VNF软件版本的过程中，所述方法还包括：
    当所确定的可用路径集中的所有可用路径均发生中断时，若经判断确定未完成VNF软件版本的下载，则重新根据实时更新的部署路径路由信息表和VNF软件版本信任策略确定新的可用路径集；
    通过所确定的新的可用路径集继续下载VNF软件版本。
  3. 根据权利要求1所述的方法，其中，在所述通过所确定的可用路径集下载VNF软件版本的过程中，所述方法还包括：
    当NFV网络拓扑中新增第三节点时，所述第三节点为可用于所述第一节点实现VNF软件版本下载的节点，经判断确定未完成VNF软件版本的下载，则重新根据实时更新的部署路径路由信息表和VNF软件版本信任策略确定新的可用路径集；
    通过所确定的新的可用路径集继续下载VNF软件版本。
  4. 根据权利要求1所述的方法，其中，所述方法还包括：当根据更新后的部署路径路由信息表、预设的路径选择策略、以及VNF软件版本信任策略未确定出可用路径集时，向虚拟网络功能管理VNFM节点发起可用路径集仲裁请求；
    接收VNFM节点反馈的可用路径集；
    通过所接收到的可用路径集下载VNF软件版本。
  5. 根据权利要求1至4任一项所述的方法，其中，所述预设的路径选择策略包括所述第二节点的可用带宽大于带宽阈值，或所述第二节点的可用带宽大于带宽阈值且第一节点和第二节点的下一跳数小于或者等于跳数阈值；所述带宽阈值为第一节点下载VNF软件版本所需的最小带宽。
  6. 一种实现虚拟网络功能VNF自动部署的装置，应用于第一节点，所述第一节点为网络功能虚拟化NFV网络拓扑中任一待安装VNF软件版本的节点，所述装置包括发送单元、接收单元、确定单元、以及下载单元；
    所述发送单元，配置为发送更新部署路径路由信息表广播消息至所有第二节点；所述第二节点表征所述NFV网络拓扑中可提供待安装VNF软件版本的节点；
    所述接收单元，配置为接收所有第二节点反馈的部署路径路由信息并记录在自身的部署路径路由信息表中，以实现对部署路径路由信息表的更新；
    所述确定单元，配置为根据更新后的部署路径路由信息表、预设的路径选择策略、以及VNF软件版本信任策略确定可用路径集；所述可用路径集包括一条或多条可用路径；
    所述下载单元，配置为通过所确定的可用路径集下载VNF软件版本。
  7. 根据权利要求6所述的装置，其中，所述装置还包括第一判断处理单元；
    所述第一判断处理单元，配置为当所确定的可用路径集中的所有可用路径均发生中断时，若经判断确定未完成VNF软件版本的下载，则重新根据实时更新的部署路径路由信息表和VNF软件版本信任策略确定新的可用路径集；
    相应地，所述下载单元，还配置为通过所述第一判断处理单元所确定的新的可用路径集继续下载VNF软件版本。
  8. 根据权利要求6所述的装置，其中，所述装置还包括第二判断处理单元；
    所述第二判断处理单元，配置为当NFV网络拓扑中新增第三节点时，所述第三节点为可用于所述第一节点实现VNF软件版本下载的节点，经判断确定未完成VNF软件版本的下载，则重新根据实时更新的部署路径路由信息表和VNF软件版本信任策略确定新的可用路径集；
    相应地，所述下载单元，还配置为通过所述第二判断处理单元所确定的新的可用路径集继续下载VNF软件版本。
  9. 根据权利要求6所述的装置，其中，
    所述发送单元，还配置为当所述确定单元根据更新后的部署路径路由信息表、预设的路径选择策略、以及VNF软件版本信任策略未确定出可用路径集时，向虚拟网络功能管理VNFM节点发起可用路径集仲裁请求；
    所述接收单元，还配置为接收VNFM节点反馈的可用路径集；
    所述下载单元，还配置为根据所述接收单元所接收到的可用路径集下载VNF软件版本。
  10. 根据权利要求6至9任一项所述的装置，其中，所述预设的路径选择策略包括所述第二节点的可用带宽大于带宽阈值，或所述第二节点的可用带宽大于带宽阈值且第一节点和第二节点的下一跳数小于或者等于跳数阈值；所述带宽阈值为第一节点下载VNF软件版本所需的最小带宽。
  11. 一种计算机存储介质，所述计算机存储介质中存储有计算机可执行指令，所述计算机可执行指令用于执行权利要求1至5任一项所述实现VNF自动部署的方法。
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