583 results about "Network Functions Virtualization" patented technology

Embodiments of the invention disclose a fault handling method, device and system based on network function virtualization. A fault correlation analysis request of virtualized network service is sent to a first functional entity via a second functional entity, so that the first functional entity can send the fault information of a VNF and the fault information of an NFVI to the second functional entity when detecting that faults exist in the VNF and the NFVI corresponding to a VNF identifier according to the VNF identifier and an NFVI identifier included in the fault correlation analysis request. Therefore, the second functional entity can perform fault correlation analysis on the virtualized network service and the VNF and the NFVI according to the fault information of the VNF and the fault information of the NFVI. The handling time for fault correlation between the virtualized network service and the VNF and the NFVI is shortened and the fault handling efficiency is improved.

A network function virtualization device includes at least one network function virtual machine; and a network function flow switch configured to receive flows and to switch the flows to the at least one network function virtual machine, and a network functions virtualization method for applying the virtualized network function to the flows.

The invention discloses an air-ground integrated network architecture based on a software defined network and network function virtualization. According to the system architecture, the entire network consists of a ground network part and a space network part, and is divided in a unified manner into a management layer, a control layer and a forwarding layer. The management layer is responsible for registering and querying the network status and network service functions of the ground part and the space part in the air-ground integrated network and making routing, security, billing, service call and resource management strategies. The control layer consists of a ground part and a space part, and is responsible for controlling data forwarding according to the strategies of the management layer and collecting the information of network links and network service functions. The forwarding layer consists of a ground part and a space part, and is responsible for forwarding data and providing network service functions. The architecture uses a software defined network and an idea of network function virtualization, and efficient information transmission control and on-demand satellite service providing are realized in an air-ground integrated network.

A data communication system has data processing circuitry to transfer data communications. Trust modules establish and maintain network trust of the data processing circuitry. A Network Function Virtualization (NFV) system executes hypervisors to establish and maintain an NFV processing environment in the data processing circuitry. A Software Defined Network (SDN) system executes SDN applications, SDN controllers, and SDN data machines in the data processing circuitry during NFV slices to transfer the data communications. The data communication system maintains a data structure that associates, based on execution relationships, individual blocks of the data processing circuitry, the trust modules, the hypervisors, the NFV slices, the SDN applications, the SDN controllers, and the SDN data machines. The database may be queried for the hardware trust data related to specific NFV and SDN software modules.

The invention discloses a virtualized network service business automatic generation and dynamic monitoring method. The method comprises: an NFVO (Network Functions Virtualization Orchestrator) receiving a new virtualized NS request; the NFVO operating the feasibility check of building interconnection with VNFs (Virtualized Network Function); after determining the feasibility of interconnection, connecting to a specific VNF instance to instantiate the NS; and monitoring all VNF instances which have different functions and form the NS. The method realizes network service virtual automation disposition, and real-time monitoring and dynamic adjusting on the VNFs.

Methods and apparatus for detection and handling of virtual appliance failures. In one aspect, a method is implemented on a host platform on which a hypervisor (aka Virtual Machine Manager) and a plurality of virtual machines (VMs) are running, the plurality of VMs collectively hosting a plurality of Software Defined Networking (SDN) and / or Network Function Virtualization (NFV) appliances that are communicatively coupled via a virtual network. A software-based entity running on the host platform is configured to monitor the plurality of virtual network appliances to detect failures of the virtual network appliances. In response to detection of a virtual network appliance failure, messages containing configuration information are implemented to reconfigure packet flows to bypass the virtual network appliance that has failed.

A device of a service coordinating entity includes communications circuitry to communicate with a plurality of access networks via a corresponding plurality of network function virtualization (NFV) instances, processing circuitry, and a memory device. The processing circuitry is to perform operations to monitor stored performance metrics for the plurality of NFV instances. Each of the NFV instances is instantiated by a corresponding scheduler of a plurality of schedulers on a virtualization infrastructure of the service coordinating entity. A plurality of stored threshold metrics is retrieved, indicating a desired level for each of the plurality of performance metrics. A threshold condition is detected for at least one of the performance metrics for an NFV instance of the plurality of NFV instances, based on the retrieved plurality of threshold metrics. A hardware resource used by the NFV instance to communicate with an access network is adjusted based on the detected threshold condition.

The invention relates to a service function chaining dynamic deployment method based on QoS (Quality of Service) guarantee and belongs to the technical field of mobile communication. According to themethod, on the basis of 5G network slicing, resources are flexibly configured through utilization of a software defined network and a network function virtualization technology. In order to improve the QoS of communication business in slice networks, a reliability requirement oriented service function chaining deployment model is established. According to the model, a service function chaining dynamic deployment scheme based on the QoS guarantee is designed with the purpose of minimizing the end-to-end delay. According to the scheme, node positions and reliability are taken into comprehensiveconsideration; virtual network functions are deployed through utilization of a novel node arrangement method, and the load of the networks is balanced. In a chaining mapping process, the QoS is improved through selection of the delay shortest path which satisfies a reliability requirement. According to the method, the end-to-end delay of the service function chaining is reduced, the deployment reliability is ensured, and a request acceptance rate and a resource utilization rate are improved.

A network function virtualization (NFV) orchestration manager utilizes characteristics of the particular host, such as the platform itself, the hypervisor and the network interface to determine virtual network function (VNF) deployment. Exemplary platform characteristics are latency, throughput, scalability and migration. Factors are developed for each characteristic to provide positive or negative values used in the determination so that each host receives values for each characteristic. Each VNF is associated with desirable characteristics. When a VNF is to be deployed, the NVF orchestration manager determines the host factors relevant to the VNF. After analyzing the hosts and comparing them to the VNF requirements, a host choice is determined and the VNF is deployed to that host, with a virtual machine (VM) being created if needed. In a similar manner, VNFs can be chosen for inclusion in a service function chain (SFC).

An apparatus for performing network function virtualization (NFV), comprising: a memory, a processor coupled to the memory, wherein the memory includes instructions that when executed by the processor cause the apparatus to perform the following: receive an instruction to virtualize a network device within a network, divide, according to the instruction, the network device into a plurality of network functions (NFs) used to form a virtualized network node that corresponds to the network device, launch the NFs within one or more virtual containers, and group the virtual containers together using a group identifier (ID) that corresponds to the virtualized network node, wherein each of the NFs correspond to a network function performed by the network device prior to virtualization.

The embodiment of the invention discloses an equipment state and resource information monitoring method.The method comprises the steps that a network function virtualization infrastructure (NFVI) receives a subscription message sent through a virtual network function (VNF); the NFVI reports equipment states and resource monitoring information of virtual machines or vessels deployed with the VNF to the VNF through an NFVI interface according to the subscription message.By means of the equipment state and resource information monitoring method, the equipment states and the resource information of the virtual machines or the vessels can be monitored uniformly through the NFVI for the virtual machines or the vessels deployed with the VNF, repeated monitoring caused when each virtual machine or each vessel has an own equipment state and resource monitoring mechanism is avoided, and thus the resource monitoring expenditure of a network function virtualization system is reduced.

Examples for network function virtualization are described. These examples include accessing definition data defining a virtual network function, the virtual network function comprising one or more components. The definition data is then instantiated to generate an instance of the virtual network function. Physical computing resources may then be assigned to the instance of the virtual network function.

The invention discloses a method, device and system for generating a service path. The method includes the steps that a PCE receives path calculation request PCReq information sent by a PCC, and the PCReq information includes NFV functional demand information; the PCE generates the service path according to an NFVDB, and an NFV functional entity in accordance with the NFV functional demand information is on the service path. According to the embodiment, the method, device and system have the advantages that when a user service changes, the PCE obtains the NFV functional demand information in the PCReq information sent by the PCC, the service path, meeting the requirement for passing the requested NFV functional entity in the NFV functional demand information, is generated according to the NFVDB, and therefore the service path of a user is dynamically configured. Compared with the mode that the service path of the user is statically configured, configuration and maintenance difficulty is lowered.

The present invention discloses a virtual network element automatic loading method, including: a network function virtualization orchestrator, in accordance with an operator's hardware resource plans for the network element, submits, to a cloud management system, an application to create virtual machine resources for the network element; the cloud management system activates the virtual machine of the application; a network element management system or the network element virtualization orchestrator, in accordance with virtual machine resource information derived as a result of the application, generates a virtual network element description for the network element, and sends, to a virtual machine which is in a list of virtual machines and which is playing the role of a network element operation management unit, the virtual network element description of each network element; the virtual network element description includes at least the following: the list of virtual machines and the role corresponding to each virtual machine as contained in the virtual network element; the network element operation management unit, in accordance with the virtual network element description, configures a self-governing virtual machine. The present invention additionally discloses a virtual machine IP address acquisition method, and a virtual network element automatic loading and virtual machine IP address acquisition system. The use of the present invention lowers the production and maintenance costs associated with a network element in a communications network.

A Network Function Virtualization (NFV) Management and Orchestration (MANO) data communication system drives an NFV Infrastructure (NFVI) to support a Network Service (NS). The NFV MANO system exchanges hardware trust data with a hardware-trusted subsystem in the NFVI to maintain hardware trust with the NFVI subsystem. The NFV MANO system exchanges NS data with an operations system and responsively exchanges network data to drive the NFVI to execute a Virtual Network Function (VNF) externally to the hardware-trusted subsystem to support the NS. The NFV MANO system also exchanges trust data for the NS with the operations system and responsively exchanges network data with the hardware-trusted subsystem to drive the subsystem to execute the VNF to support the NS.

The invention provides an acceleration resource processing method and device and a network function virtualization system. The method comprises the following steps: receiving an acceleration resource request of a service, wherein the acceleration resource request includes attribute parameters of acceleration resources and a service acceleration resource scheduling strategy, and the service acceleration resource scheduling strategy is determined according to a service demand of the service; and determining the acceleration resources of the service according to the attribute parameters of the acceleration resources and the service acceleration resource scheduling strategy. According to the method, the acceleration resources are selected according to the service acceleration scheduling strategy, so that specific requirements such as time delay sensitivity of the service can be met, and the time delay and performance of the service are improved.

The invention relates to the field of network communication, and in particular relates to a network function virtualization device and method based on data driving, in particular relating to the field of crossing of cloud computing, software-defined networks, data driving and network function virtualization. According to the invention, personalized customization of a VNF is realized through data model driving; with the help of a device view and a service view, a network manager obtains a real-time and complete VNF global state; the flexible configuration of the VNF is realized through direct connection between a control layer and the VNF; by means of intercommunication cooperation between an intermediary facility and a heterogeneous cloud computing network infrastructure, the disadvantages of the existing cloud computing network infrastructure are overcome; and fusion of an SDN and an NAAS is promoted.

The invention discloses a virtual network function rapid mapping algorithm based on a satellite network. The algorithm comprises the following steps of: designing a satellite network-based software defined network and a network function virtualization collaborative deployment framework; And designing a virtual network function dynamic mapping method. According to the software defined network and network function virtualization collaborative deployment framework designed by the invention, network functions can be decoupled from hardware equipment, so that the flexibility and the destroy resistance of the network are improved. The virtualized network function dynamic mapping method comprises two steps that a feasible mapping path set in one operation period of a satellite network is calculated in a static step, and the feasible mapping paths are weighted and sorted according to the extended length of the mapping time; In the dynamic step, a graph model matching algorithm is adopted to match an optimal mapping path from feasible mapping paths with different weights in a time slice, and meanwhile, an arrangement strategy is formulated. Time delay can be greatly reduced, and the requirement for high-dynamic change of a satellite network topological structure is met.

The present invention relates generally to data communication networks and devices, and relates more particularly to monitoring and management in network functions virtualization networks (NFV) where a plurality of virtualize network functions (VNF) are chained together. Aspects of the present invention include monitoring and management across multiple virtual and physical paths. In embodiments of the present invention a software defined networking (SDN) controller can be implemented, but does not have to be implemented.

The invention discloses a safety management method and device based on NFV (Network Function Virtualization), and relates to the technical field of network engineering. The safety management method and device based on the NFV are used for providing a needed security policy for a whole NFV network, so as to solve the problem in the prior art that a network architecture is complex since a virtual machine and so on is used as a unit to carry out protection. The safety management method based on the network function virtualization NFV comprises the following steps: determining a changed target node in an NFV service network domain; acquiring network data transmitted by the target node; analyzing whether an unsafe event exists in the network data, if so, then generating a corresponding security policy; and transmitting the security policy to a functional entity of an NFV management layout domain, so that the functional entity can configure the target node according to the security policy.

The invention is suitable for the field of network function virtualization and provides a network function virtualization implementation method, a wide-band network gateway and a control device. The wide-band network gateway BNG receives a message; a service chain is determined to process the message according to the received message, a strategy matched with the determined service chain is looked up from a strategy list, and multi-protocol tag switching MPLS service tags are added to the message; the message added with the MPLS service tags is sent to NFV servers or SPE. Therefore, the tag of each NFV server used for processing the service chain is once and directly added to a message header to enable a front NFV server to forward to a next NFV server after processing the service, continuous processing is achieved, meanwhile, each NFV server does not need to send return to the BNG after processing the service, and furthermore, the occupation of network flow is greatly reduced while the processing efficiency of the service chain is improved.

The invention provides a virtual deep packet inspection traffic analysis method and system. The virtual deep packet inspection traffic analysis method combines the network function virtualization (NFV) technology and the deep packet inspection (DPI) technology organically, and comprises the following steps: a stream information table based on a five-tuple array is set; an I / O receiving core allocates corresponding stream identifiers to received data streams based on elements of the five-tuple array, and adds the stream identifiers and the corresponding elements of the five-tuple array into the stream information table; and a working core parses the received data streams, acquires the stream identifiers, and identifies and counts up WEB accessing traffic according to a preset regular expression feature library file and the stream information table. The virtual deep packet inspection traffic analysis method and system are high in service identification accuracy, flexible in deployment process and high in expansibility, and can effectively improve the operation and maintenance costs and benefits.

Systems and methods are described for stateless network function virtualization. Embodiments operate in context of a data network, in which network middleboxes are virtualized, for example, for added scalability and fault tolerance. The virtualized middleboxes can implement state-reliant network functions in a manner that decouples the state from the packet processing pipeline, while maintaining reliability and throughput even at very high data rates. Various embodiments include novel packet processing pipeline architectures, novel thread coordination structures (e.g., including batching and buffer pool sub-structures), novel remote state data store structures, and / or other novel features.

The invention discloses an SDN (Software Defined Network) / NFV (Network Function Virtualization) open access network system, which comprises a virtual optical line terminal (vOLT), access network equipment with an Openflow switching capacity and ONUs (Optical Network Units) / ONTs (Optical Network Terminals), wherein the vOLT is interconnected with the access network equipment through an Openflow switching network; and the access network equipment is interconnected with the ONUs / ONTs through an optical distribution network (ODN. The invention further discloses an ONU / ONT management method of the SDN / NFV open access network system. According to the invention, an OVS (Openflow Virtual Switch) network of the SDN is combined with traditional ONU / ONT management, the original ODN network architecture is sufficiently utilized, and the management process of configuring, maintaining and updating the ONUs / ONTs of an SDN controller is simplified.

The invention discloses a method and equipment for controlling transmission resources in a software defined network SDN. A network function virtualization management and orchestration NFV M and O device receives a message related to control of the transmission resources sent by a SDN controller and / or a SDN switch; according to the received message related to control of the transmission resources, whether the SDN controller can control an appointed transmission resource or not can be determined; and a transmission resource control instruction carrying a definitive result is sent to the SDN controller. In the scheme in the embodiment of the invention, the message related to control of the transmission resources is sent to the NFV M and O device through the SDN controller and the SDN switch; the SDN controller controls the transmission resources of the SDN switch according to the transmission resource control instruction sent by the NFV M and O device; and thus, the utilization rate of the transmission resources is increased.

The embodiment of the invention provides a domain name resource records management method and device. The domain name resource records management method comprises the steps of receiving a subscription request message sent from a Domain Name System (DNS) server by a Network Function Virtualization Organizer (NFVO); and when a change event of an NS example changes, sending a notification message to the DNS server by the NFVO, wherein the notification message is used for notifying the DNS server of modifying domain name resource records based on the notification message. Consequently, the NFVO can notify the DNS server in time when a network changes (the NS example changes), so that the DNS server can update the domain name resource records automatically, thereby realizing dynamic adjustment of a service flow based on network change and responding demands of network services rapidly.

The invention discloses a network flow type prediction method based on deep learning. A multistage prediction scheme of ''edge pre-classification + center fine classification'' is adopted, that is, pre-classification is performed at first and then fine classification is performed, and deep learning models of pre-classification and fine classification are respectively constructed on an SDN switch and an SDN controller of a network edge, wherein the network function virtualization NFV technology is adopted, computing resources of switches in the SDN network and a distributed deep learning network constructed by links are used as hardware resources required for the pre-classification model, and the SDN controller is used as the hardware resource required for the fine classification model; andthe pre-classification model uses four joint features, and the fine classification model uses ten joint features. By adoption of the multistage prediction scheme in the network flow type prediction method disclosed by the invention, the communication overhead of the switch to the controller can be reduced, and the load of the controller can also be alleviated; the prediction is achieved by usinga capsule network method as early as possible; and meanwhile, the deep learning model is periodically trained by using an autonomously updated training data set to improve the prediction accuracy.

The embodiment of the invention provides a virtual network loading method and device. The virtual network loading method comprises the following steps: a NFVO (Network Functions Virtualization Orchestrator) receives a NSD (Network Service Descriptor) sent from a first network entity; the NFVO selects a candidate VIM (Virtualised Infrastructure Manager) which can distribute virtual resources to a VNF (Virtualization Network Function) when the VNF is deployed according to a restricted condition in the NSD and a restricted condition in a VNFD (Virtualised Infrastructure Manager Descriptor) in a VNF catalogue; the NFVO sends the VM (Virtual Machine) image file of the stored VNF or a URL (Uniform Resource Locator) corresponding to the VM image file of the VNF to the candidate VIM; the NFVO notifies a NS (Network Service) catalogue to be added into the NSD; and the NFVO sends a NSD loading success notification message to the first network entity. The virtual network loading method and device provided by the embodiment of the invention is used for optimizing a virtual network loading flow, and saves network transmission resources and storage space in the VIM in a loading process.

The invention relates to a virtual network function compiling method and device, and belongs to the technical field of communication. The method comprises the following steps that a network function virtual composer NFVO makes a VNF life period operation instruction and a VNF compiling template according to the network request and sends the VNF life period operation instruction and the VNF compiling template to a virtual network function manager VNFM; the virtual network function manager VNFM makes a VNFC compile rule for compiling the VNF and the virtual resource compiling rule according to the received VNF compiling template of the network function virtual composer NFVO or the VNF life period operation instruction information; the virtual network function manager VNFM executes the VNFC compling rule used for compiling the VNF and the virtual resource compiling rule according to the VNFC compiling rule of the VNF and the virtual resource compiling rule. The method and the device are applied to an NFV system architecture, and the efficient virtual network function compiling is realized.

Disclosed herein is a method for managing network resources required in a Network Function Virtualization (NFV) environment. A verifier for Network Function Virtualization (NFV) resource allocation includes a network information reception unit for receiving information about network services from Operations Support Systems (OSS) or Business Support Systems (BSS) in an NFV environment, a combination information generation unit for generating combination information made when Virtualized Network Functions (VNFs) required by each network service are allocated to physical or virtual network resources, based on the received network service information, and a verification unit for verifying whether the combination information is applicable to available network resources in the NFV environment. Accordingly, a network service provider and a network administrator may detect problems related to resource availability in advance, thus more securely deriving the design of network services and the planning to secure network resources.