FORM 2
THE PATENTS ACT, 1970
(39 OF 1970)
&
THE PATENT RULES, 2003
COMPLETE SPECIFICATION
(See section 10 and rule 13)
“METHOD AND SYSTEM FOR RESTORATION OF VIRTUAL NETWORK FUNCTION NODES”
We, Jio Platforms Limited, an Indian National, of Office - 101, Saffron, Nr. Centre Point, Panchwati 5 Rasta, Ambawadi, Ahmedabad - 380006, Gujarat, India.
The following specification particularly describes the invention and the manner in which it is to be performed.
2
METHOD AND SYSTEM FOR RESTORATION OF VIRTUAL NETWORK FUNCTION NODES
FIELD OF THE INVENTION
5
[0001]
The present disclosure relates generally to the field of wireless communication systems. More particularly, the present disclosure relates to methods and systems for restoration of a virtual network function node.
BACKGROUND 10
[0002]
The following description of related art is intended to provide background information pertaining to the field of the disclosure. This section may include certain aspects of the art that may be related to various features of the present disclosure. However, it should be appreciated that this section be used only to 15 enhance the understanding of the reader with respect to the present disclosure, and not as admissions of prior art.
[0003]
Wireless communication technology has rapidly evolved over the past few decades, with each generation bringing significant improvements and 20 advancements. The first generation of wireless communication technology was based on analog technology and offered only voice services. However, with the advent of the second generation (2G) technology, digital communication and data services became possible, and text messaging was introduced. The third generation (3G) technology marked the introduction of high-speed internet access, mobile 25 video calling, and location-based services. The fourth generation (4G) technology revolutionized wireless communication with faster data speeds, better network coverage, and improved security. Currently, the fifth generation (5G) technology is being deployed, promising even faster data speeds, low latency, and the ability to connect multiple devices simultaneously. With each generation, wireless 30
3
communication technology has become more advanced, sophisticated, and capable
of delivering more services to its users.
[0004]
Various nodes are connected with a network management system for providing various services related to the communication systems. All such nodes 5 have other internal components. The components are run using some applications which need to be upgraded, downgraded at various instances. Also, the files related to these applications also need to be stored in back-up systems so as to fetch as and when needed. There may be instances where an upgrade, i.e., switching to a later version, or downgrade, i.e., switching to a previous version, of an application is 10 needed. Similarly, there may be other instances where a downgrade, i.e., switching to a lower version of an application is needed. Also, there may be instances where restoration of files is needed.
[0005]
Also, while an application is being restored, the users face a downtime and 15 are not able to access the application. Therefore, it is required to restore applications as quickly as possible.
[0006]
Further, over the period of time various solutions have been developed to improve the performance of communication devices and to perform restoration of 20 files. However, there are certain challenges with existing solutions. The existing solutions provide for manual restoration. In manual restoration processes, there time consumed to restore the applications is large, and the solutions are prone to errors. Further, in manual restoration process, there can be issues related to the security of sensitive data related to the applications or the nodes such as virtual 25 network function (VNF) nodes. In the existing solutions, there is no provision for performing automatic restoration of files.
[0007]
Thus, there exists an imperative need in the art to provide a method and a system that can restore files for one or more virtual network function nodes 30 automatically, which the present disclosure aims to address.
4
OBJECTS OF THE INVENTION
[0008]
Some of the objects of the present disclosure, which at least one embodiment disclosed herein satisfies are listed herein below. 5
[0009]
It is an object of the present disclosure to provide a system and a method for restoration of a virtual network function node that enables swift recovery of virtual network functions (VNFs) from backup profiles.
10
[0010]
It is another object of the present disclosure to provide a solution for restoration of a virtual network function node that minimizes downtime and service disruption, allowing applications to resume normal operation quickly after a failure or data loss event.
15
[0011]
It is yet another object of the present disclosure to provide a solution for restoration of a virtual network function node that is able to preserve data integrity and facilitates in ensuring that the restored VNFs are an accurate representation of the previously backed-up state.
20
[0012]
It is yet another object of the present disclosure to provide a solution for restoration of a virtual network function node that reduces the risk of data corruption or inconsistencies.
SUMMARY 25
[0013]
This section is provided to introduce certain aspects of the present disclosure in a simplified form that are further described below in the detailed description. This summary is not intended to identify the key features or the scope of the claimed subject matter. 30
5
[0014]
An aspect of the present disclosure may relate to a method for restoration of one or more virtual network function (VNF) nodes. The method includes receiving, by a transceiver unit, via a user interface, a request for restoration of the one or more VNF nodes. The method further includes sending, by the transceiver unit to a restoration unit, the request for restoration of the one or more VNF nodes. The 5 method further includes moving, by the restoration unit, via a restore manager, each of the selected one or more backup files stored in a backup server to an application programming interface (API). The method further includes executing, by the restoration unit, via the API, a restoration process for restoring the one or more VNF nodes based on the one or more backup files. The method further includes 10 sending, by the restoration unit, via the API to the restore manager, one of a successful restoration notification and an unsuccessful restoration notification for each of the one or more VNF nodes. Thereafter, the method further comprises sending, by the restoration unit, via the API to an updating unit, an update notification in an event the successful restoration of the first subset of the one or 15 more VNF nodes is sent to the restore manager, wherein the update notification is processed by an inventory manager.
[0015]
In an exemplary aspect of the present disclosure, the method further comprises moving, by the restoration unit via the restore manager, each of the 20 backup file stored in the backup server to the API comprises sending, a request for starting the restoration process.
[0016]
In an exemplary aspect of the present disclosure, the processing of the update notification by the updating unit via the inventory manager comprises 25 updating the details of the first subset of the one or more VNF nodes in a database present in a storage unit.
[0017]
In an exemplary aspect of the present disclosure, the request is based on a selection of one or more backup files for the one or more VNF nodes, wherein a 30 respective backup file is selected for each of the one or more VNF nodes.
6
[0018]
In an exemplary aspect of the present disclosure, the successful restoration notification is sent in an event of a successful restoration of a first subset of the one or more VNF nodes, and the unsuccessful restoration notification is sent in an event of an unsuccessful restoration of a second subset of the one or more VNF nodes. 5
[0019]
Another aspect of the present disclosure may relate to a system for restoration of one or more virtual network function (VNF) nodes. The system includes a transceiver unit configured to receive, via a user interface, a request for restoration of the one or more VNF nodes; send, to a restoration unit, the request 10 for restoration of the one or more VNF nodes. The system further comprises a restoration unit configured to move, via a restore manager, each backup file of the one or more backup files stored in a backup server to an application programming interface; execute a restoration process, via the API, for restoring the one or more VNF nodes based on the one or more backup files; send, via the API to the restore 15 manager, one of a successful restoration notification and an unsuccessful restoration notification for each of the one or more VNF nodes; and send, via the API, to an updating unit, an update notification in an event the successful restoration of the VNF node is sent to the restore manager, wherein the update notification is processed by an inventory manager. 20
[0020]
Another aspect of the present disclosure provides a user equipment (UE) comprising a processor configured to receive, via a user interface, a request for restoration of the one or more VNF nodes, wherein for restoration of one or more virtual network function (VNF) nodes, process comprises sending, to a restoration 25 unit, the request for restoration of the one or more VNF nodes; moving, via a restore manager, each of the selected one or more backup files stored in a backup server to an application programming interface (API); executing, via the API, a restoration process for restoring the one or more VNF nodes based on the one or more backup files; sending, via the API to the restore manager, one of a successful restoration 30 notification and an unsuccessful restoration notification for each of the one or more
7
VNF nodes; and
sending, via the API to an updating unit, an update notification in an event the successful restoration of the first subset of the one or more VNF nodes is sent to the restore manager, wherein the update notification is processed by an inventory manager.
5
[0021]
Yet another aspect of the present disclosure provides a non-transitory computer-readable storage medium storing instruction for restoration of one or more virtual network function (VNF) nodes which, when executed by one or more units of a system, causes: a transceiver unit to: receive, via a user interface, a request for restoration of the one or more VNF nodes; send, to a restoration unit, the request 10 for restoration of the one or more VNF nodes; a restoration unit to: move, via a restore manager, each backup file of the one or more backup files stored in a backup server to an application programming interface; execute a restoration process, via the API, for restoring the one or more VNF nodes based on the one or more backup files; send, via the API to the restore manager, one of a successful restoration 15 notification and an unsuccessful restoration notification for each of the one or more VNF nodes; and send, via the API, to an updating unit, an update notification in an event the successful restoration of the VNF node is sent to the restore manager, wherein the update notification is processed by an inventory manager.
20
DESCRIPTION OF THE DRAWINGS
[0022]
The accompanying drawings, which are incorporated herein, and constitute a part of this disclosure, illustrate exemplary embodiments of the disclosed methods and systems in which like reference numerals refer to the same parts throughout the 25 different drawings. Components in the drawings are not necessarily to scale, emphasis instead being placed upon clearly illustrating the principles of the present disclosure. Also, the embodiments shown in the figures are not to be construed as limiting the disclosure, but the possible variants of the method and system according to the disclosure are illustrated herein to highlight the advantages of the 30 disclosure. It will be appreciated by those skilled in the art that disclosure of such
8
drawings includes disclosure of electrical components or circuitry commonly used
to implement such components.
[0023]
FIG. 1 illustrates an exemplary block diagram representation of 5th generation core (5GC) network architecture. 5
[0024]
FIG. 2 illustrates an exemplary block diagram of a computing device upon which the features of the present disclosure may be implemented in accordance with exemplary implementation of the present disclosure.
10
[0025]
FIG. 3 illustrates an exemplary block diagram of a system for restoration of one or more virtual network function (VNF) nodes in a network environment, in accordance with exemplary implementations of the present disclosure.
[0026]
FIG. 4 illustrates a method flow diagram for restoration of one or more 15 virtual network function (VNF) nodes in a network environment in accordance with exemplary implementations of the present disclosure.
[0027]
FIG. 5 illustrates an exemplary block diagram of a system architecture for restoration of one or more virtual network function (VNF) nodes in a network 20 environment in accordance with exemplary implementations of the present disclosure.
[0028]
FIG. 6 illustrates a process flow diagram for restoration of one or more virtual network function (VNF) nodes in a network environment in accordance with 25 exemplary implementations of the present disclosure.
[0029]
The foregoing shall be more apparent from the following more detailed description of the disclosure.
30
DETAILED DESCRIPTION
9
[0030]
In the following description, for the purposes of explanation, various specific details are set forth in order to provide a thorough understanding of embodiments of the present disclosure. It will be apparent, however, that embodiments of the present disclosure may be practiced without these specific 5 details. Several features described hereafter may each be used independently of one another or with any combination of other features. An individual feature may not address any of the problems discussed above or might address only some of the problems discussed above.
10
[0031]
The ensuing description provides exemplary embodiments only, and is not intended to limit the scope, applicability, or configuration of the disclosure. Rather, the ensuing description of the exemplary embodiments will provide those skilled in the art with an enabling description for implementing an exemplary embodiment. It should be understood that various changes may be made in the function and 15 arrangement of elements without departing from the spirit and scope of the disclosure as set forth.
[0032]
Specific details are given in the following description to provide a thorough understanding of the embodiments. However, it will be understood by one of 20 ordinary skill in the art that the embodiments may be practiced without these specific details. For example, circuits, systems, processes, and other components may be shown as components in block diagram form in order not to obscure the embodiments in unnecessary detail.
25
[0033]
Also, it is noted that individual embodiments may be described as a process which is depicted as a flowchart, a flow diagram, a data flow diagram, a structure diagram, or a block diagram. Although a flowchart may describe the operations as a sequential process, many of the operations may be performed in parallel or concurrently. In addition, the order of the operations may be re-arranged. A process 30
10
is terminated when its operations are completed but could have additional steps not
included in a figure.
[0034]
The word “exemplary” and/or “demonstrative” is used herein to mean serving as an example, instance, or illustration. For the avoidance of doubt, the 5 subject matter disclosed herein is not limited by such examples. In addition, any aspect or design described herein as “exemplary” and/or “demonstrative” is not necessarily to be construed as preferred or advantageous over other aspects or designs, nor is it meant to preclude equivalent exemplary structures and techniques known to those of ordinary skill in the art. Furthermore, to the extent that the terms 10 “includes,” “has,” “contains,” and other similar words are used in either the detailed description or the claims, such terms are intended to be inclusive—in a manner similar to the term “comprising” as an open transition word—without precluding any additional or other elements.
15
[0035]
As used herein, a “processing unit” or “processor” or “operating processor” includes one or more processors, wherein processor refers to any logic circuitry for processing instructions. A processor may be a general-purpose processor, a special purpose processor, a conventional processor, a digital signal processor, a plurality of microprocessors, one or more microprocessors in association with a (Digital 20 Signal Processing) DSP core, a controller, a microcontroller, Application Specific Integrated Circuits, Field Programmable Gate Array circuits, any other type of integrated circuits, etc. The processor may perform signal coding data processing, input/output processing, and/or any other functionality that enables the working of the system according to the present disclosure. More specifically, the processor or 25 processing unit is a hardware processor.
[0036]
As used herein, “a user equipment”, “a user device”, “a smart-user-device”, “a smart-device”, “an electronic device”, “a mobile device”, “a handheld device”, “a wireless communication device”, “a mobile communication device”, “a 30 communication device” may be any electrical, electronic and/or computing device
11
or equipment, capable of implementing the features of the present disclosure. The
user equipment/device may include, but is not limited to, a mobile phone, smart phone, laptop, a general-purpose computer, desktop, personal digital assistant, tablet computer, wearable device or any other computing device which is capable of implementing the features of the present disclosure. Also, the user device may 5 contain at least one input means configured to receive an input from at least one of a transceiver unit, a processing unit, a storage unit, a detection unit and any other such unit(s) which are required to implement the features of the present disclosure.
[0037]
As used herein, “storage unit” or “memory unit” refers to a machine or 10 computer-readable medium including any mechanism for storing information in a form readable by a computer or similar machine. For example, a computer-readable medium includes read-only memory (“ROM”), random access memory (“RAM”), magnetic disk storage media, optical storage media, flash memory devices or other types of machine-accessible storage media. The storage unit stores at least the data 15 that may be required by one or more units of the system to perform their respective functions.
[0038]
As used herein “interface” or “user interface refers to a shared boundary across which two or more separate components of a system exchange information 20 or data. The interface may also be referred to a set of rules or protocols that define communication or interaction of one or more modules or one or more units with each other, which also includes the methods, functions, or procedures that may be called.
25
[0039]
All modules, units, components used herein, unless explicitly excluded herein, may be software modules or hardware processors, the processors being a general-purpose processor, a special purpose processor, a conventional processor, a digital signal processor (DSP), a plurality of microprocessors, one or more microprocessors in association with a DSP core, a controller, a microcontroller, 30
12
Application Specific Integrated Circuits
(ASIC), Field Programmable Gate Array circuits (FPGA), any other type of integrated circuits, etc.
[0040]
As used herein the transceiver unit include at least one receiver and at least one transmitter configured respectively for receiving and transmitting data, signals, 5 information or a combination thereof between units/components within the system and/or connected with the system.
[0041]
As used herein, physical virtual inventory manager (PVIM) module refers to module for backing up the virtual machines (VMs) running in an enterprise 10 environment. PVIMs usually run as guests on hypervisors that emulate a computer system and allow multiple PVIMs to share a physical host hardware system.
[0042]
As used herein, cloud native functions (CNFs) refer to a network function (NF) that fulfils network functionalities while adhering to cloud-native design 15 principles without requiring any hardware.
[0043]
As discussed in the background section, the current known solutions have several shortcomings. The present disclosure aims to overcome the above-mentioned and other existing problems in this field of technology by providing 20 method and system for restoring one or more network functions (NFs) in a network environment.
[0044]
FIG. 1 illustrates an exemplary block diagram representation of 5th generation core (5GC) network architecture, in accordance with exemplary 25 implementation of the present disclosure. As shown in FIG. 1, the 5GC network architecture [100] includes a user equipment (UE) [102], a radio access network (RAN) [104], an access and mobility management function (AMF) [106], a Session Management Function (SMF) [108], a Service Communication Proxy (SCP) [110], an Authentication Server Function (AUSF) [112], a Network Slice Specific 30 Authentication and Authorization Function (NSSAAF) [114], a Network Slice
13
Selection Function (NSSF) [116], a Network Exposure Function (NEF) [118], a
Network Repository Function (NRF) [120], a Policy Control Function (PCF) [122], a Unified Data Management (UDM) [124], an application function (AF) [126], a User Plane Function (UPF) [128], a data network (DN) [130], wherein all the components are assumed to be connected to each other in a manner as obvious to 5 the person skilled in the art for implementing features of the present disclosure.
[0045]
Radio Access Network (RAN) [104] is the part of a mobile telecommunications system that connects user equipment (UE) [102] to the core network (CN) and provides access to different types of networks (e.g., 5G network). 10 It consists of radio base stations and the radio access technologies that enable wireless communication.
[0046]
Access and Mobility Management Function (AMF) [106] is a 5G core network function responsible for managing access and mobility aspects, such as UE 15 registration, connection, and reachability. It also handles mobility management procedures like handovers and paging.
[0047]
Session Management Function (SMF) [108] is a 5G core network function responsible for managing session-related aspects, such as establishing, modifying, 20 and releasing sessions. It coordinates with the User Plane Function (UPF) for data forwarding and handles IP address allocation and QoS enforcement.
[0048]
Service Communication Proxy (SCP) [110] is a network function in the 5G core network that facilitates communication between other network functions by 25 providing a secure and efficient messaging service. It acts as a mediator for service-based interfaces.
[0049]
Authentication Server Function (AUSF) [112] is a network function in the 5G core responsible for authenticating UEs during registration and providing 30 security services. It generates and verifies authentication vectors and tokens.
14
[0050]
Network Slice Specific Authentication and Authorization Function (NSSAAF) [114] is a network function that provides authentication and authorization services specific to network slices. It ensures that UEs can access only the slices for which they are authorized. 5
[0051]
Network Slice Selection Function (NSSF) [116] is a network function responsible for selecting the appropriate network slice for a UE based on factors such as subscription, requested services, and network policies.
10
[0052]
Network Exposure Function (NEF) [118] is a network function that exposes capabilities and services of the 5G network to external applications, enabling integration with third-party services and applications.
[0053]
Network Repository Function (NRF) [120] is a network function that acts 15 as a central repository for information about available network functions and services. It facilitates the discovery and dynamic registration of network functions.
[0054]
Policy Control Function (PCF) [122] is a network function responsible for policy control decisions, such as QoS, charging, and access control, based on 20 subscriber information and network policies.
[0055]
Unified Data Management (UDM) [124] is a network function that centralizes the management of subscriber data, including authentication, authorization, and subscription information. 25
[0056]
Application Function (AF) [126] is a network function that represents external applications interfacing with the 5G core network to access network capabilities and services.
30
15
[0057]
User Plane Function (UPF) [128] is a network function responsible for handling user data traffic, including packet routing, forwarding, and QoS enforcement.
[0058]
Data Network (DN) [130] refers to a network that provides data services to 5 user equipment (UE) in a telecommunications system. The data services may include but are not limited to Internet services, private data network related services.
[0059]
FIG. 2 illustrates an exemplary block diagram of a computing device [200] (also referred to herein as computer system [200]) upon which the features of the 10 present disclosure may be implemented in accordance with exemplary implementation of the present disclosure. In an implementation, the computing device [200] may also implement a method for restoring one or more network functions (NFs) in a network environment utilising the system. In another implementation, the computing device [200] itself implements the method for 15 restoring one or more network functions (NFs) in a network environment using one or more units configured within the computing device [200], wherein said one or more units are capable of implementing the features as disclosed in the present disclosure.
20
[0060]
The computing device [200] may include a bus [202] or other communication mechanism for communicating information, and a hardware processor [204] coupled with bus [202] for processing information. The hardware processor [204] may be, for example, a general-purpose microprocessor. The computing device [200] may also include a main memory [206], such as a random-25 access memory (RAM), or other dynamic storage device, coupled to the bus [202] for storing information and instructions to be executed by the processor [204]. The main memory [206] also may be used for storing temporary variables or other intermediate information during execution of the instructions to be executed by the processor [204]. Such instructions, when stored in non-transitory storage media 30 accessible to the processor [204], render the computing device [200] into a special-
16
purpose machine that is customized to perform the operations specified in the
instructions. The computing device [200] further includes a read only memory (ROM) [208] or other static storage device coupled to the bus [202] for storing static information and instructions for the processor [204].
5
[0061]
A storage device [210], such as a magnetic disk, optical disk, or solid-state drive is provided and coupled to the bus [202] for storing information and instructions. The computing device [200] may be coupled via the bus [1002] to a display [212], such as a cathode ray tube (CRT), Liquid crystal Display (LCD), Light Emitting Diode (LED) display, Organic LED (OLED) display, etc. for 10 displaying information to a computer user. An input device [214], including alphanumeric and other keys, touch screen input means, etc. may be coupled to the bus [202] for communicating information and command selections to the processor [204]. Another type of user input device may be a cursor controller [216], such as a mouse, a trackball, or cursor direction keys, for communicating direction 15 information and command selections to the processor [204], and for controlling cursor movement on the display [212]. The input device typically has two degrees of freedom in two axes, a first axis (e.g., x) and a second axis (e.g., y), that allow the device to specify positions in a plane.
20
[0062]
The computing device [200] may implement the techniques described herein using customized hard-wired logic, one or more ASICs or FPGAs, firmware and/or program logic which in combination with the computing device [200] causes or programs the computing device [200] to be a special-purpose machine. According to one implementation, the techniques herein are performed by the 25 computing device [200] in response to the processor [204] executing one or more sequences of one or more instructions contained in the main memory [206]. Such instructions may be read into the main memory [206] from another storage medium, such as the storage device [210]. Execution of the sequences of instructions contained in the main memory [206] causes the processor [204] to perform the 30 process steps described herein. In alternative implementations of the present
17
disclosure, hard
-wired circuitry may be used in place of or in combination with software instructions.
[0063]
The computing device [200] also may include a communication interface [218] coupled to the bus [202]. The communication interface [218] provides a two-5 way data communication coupling to a network link [220] that is connected to a local network [222]. For example, the communication interface [218] may be an integrated services digital network (ISDN) card, cable modem, satellite modem, or a modem to provide a data communication connection to a corresponding type of telephone line. As another example, the communication interface [218] may be a 10 local area network (LAN) card to provide a data communication connection to a compatible LAN. Wireless links may also be implemented. In any such implementation, the communication interface [218] sends and receives electrical, electromagnetic or optical signals that carry digital data streams representing various types of information. 15
[0064]
The computing device [200] can send messages and receive data, including program code, through the network(s), the network link [220] and the communication interface [218]. In the Internet example, a server [230] might transmit a requested code for an application program through the Internet [228], the 20 ISP [226], the local network [222], a host [224] and the communication interface [218]. The received code may be executed by the processor [204] as it is received, and/or stored in the storage device [210], or other non-volatile storage for later execution.
25
[0065]
The computing device [200] encompasses a wide range of electronic devices capable of processing data and performing computations. Examples of computing device [200] include, but are not limited only to, personal computers, laptops, tablets, smartphones, servers, and embedded systems. The devices may operate independently or as part of a network and can perform a variety of tasks 30 such as data storage, retrieval, and analysis. Additionally, computing device [200]
18
may include peripheral devices, such as monitors, keyboards, and printers, as well
as integrated components within larger electronic systems, showcasing their versatility in various technological applications.
[0066]
Referring to FIG. 3, an exemplary block diagram of a system [300] for 5 restoring one or more network functions (NFs) in a network environment, is shown, in accordance with the exemplary implementations of the present disclosure. The system [300] comprises at least one transceiver unit [302], at least one user interface [304], at least one Restoration Unit [306], at least one Restore Manager [308] (such as virtual backup and restore manager (VBRM)), at least one Backup Server [310], 10 at least one API [312] (such as open stack application programming interface adapter (OSA)), at least one updating unit [314], at least one Inventory Manager [316] (such as physical and virtual inventory manager (PVIM)), at least one database [318] and at least one Storage Unit [320]. Also, all of the components/ units of the system [300] are assumed to be connected to each other unless otherwise 15 indicated below. As shown in the figures all units shown within the system should also be assumed to be connected to each other. Also, in FIG. 3 only a few units are shown, however, the system [300] may comprise multiple such units or the system [300] may comprise any such numbers of said units, as required to implement the features of the present disclosure. Further, in an implementation, the system [300] 20 may be present in a user device to implement the features of the present disclosure. The system [300] may be a part of the user device / or may be independent of but in communication with the user device (may also referred herein as a UE). In another implementation, the system [300] may reside in a server or a network entity. In yet another implementation, the system [300] may reside partly in the server/ 25 network entity and partly in the user device.
[0067]
The system [300] is configured for restoration of one or more virtual network function (VNF) nodes in a network environment, with the help of the interconnection between the components/units of the system [300]. 30
19
[0068]
The system [300] comprises the transceiver unit [302] configured to receive, via the user interface [304], a request for restoration of the one or more VNF nodes. The transceiver unit [302] acts as a bridge between the user and the system, enabling communication and processing of restoration requests. For example, when a network administrator identifies a failure in one or more VNF nodes, they can 5 access the user interface [304], which could be a graphical interface on a computer or a mobile application—and select the specific backup files associated with the failed VNF nodes for restoration. Once the user makes the selection, the transceiver unit [302] receives the restoration request, including the details of the selected VNF backup profiles. The transceiver unit [302] then forwards the request to the 10 restoration unit for further processing. For example, if a VNF responsible for network routing fails, the system will allow the user to initiate the restoration of this specific function. The transceiver unit [302] processes the user’s restoration request and route to the relevant components of the system, such as the restoration unit [306]. 15
[0069]
In an exemplary aspect, the request is based on a selection of one or more backup files for the one or more VNF nodes, wherein a respective backup file is selected for each of the one or more VNF nodes. When initiating the restoration process, the user or system identifies which VNF nodes require restoration, and 20 corresponding backup files are chosen for each of these nodes. Each VNF node has its own unique backup file, which contains all the necessary data, configurations, and settings needed to restore that specific node to its previous state. The selection enables that the right backup file is matched to the correct VNF node, allowing for a precise and efficient restoration. For example, if a network comprises several 25 different VNF nodes, such as those handling traffic management, security, and load balancing, each of these nodes will have its own backup file. When a restoration is needed, the appropriate backup file for each VNF is selected, ensuring that each node is restored according to its specific requirements.
30
20
[0070]
The transceiver unit [302] is further configured to send to the restoration unit [306], the request for restoration of the one or more VNF nodes. After receiving the user's input through the user interface [304], the transceiver unit [302] processes and formats the restoration request such that all relevant details, such as the identification of the VNF nodes and their associated backup files, are correctly 5 included. The request is then transmitted to the restoration unit [306], which is responsible for managing the actual restoration process. For example, once the network administrator selects the specific VNF nodes for restoration, the transceiver unit [302] prepares the data and sends it to the restoration unit [306]. This could involve confirming the availability of the selected backup files, the status 10 of the nodes, and other parameters that are essential for restoring the VNF nodes. For example, if multiple VNF nodes need restoration, the transceiver unit [302] may also batch these requests and send them in an organized manner, ensuring that the restoration unit [306] can process them efficiently. It would be appreciated by the person skilled in the art that the setup reduces complexity for the user and 15 increases the rate at which the restoration process is initiated, allowing the system to quickly recover from failures or disruptions.
[0071]
The system [300] further comprises the restoration unit [306] communicatively coupled to at least the transceiver unit [302]. The restoration unit 20 [306] is configured to move, via the restore manager [308], each backup file of the one or more backup files stored in the backup server [310] to the application programming interface (API) [312]. The process involves identifying and selecting the appropriate backup files that correspond to the VNF nodes marked for restoration such that the files are retrieved from the backup server [310] and made 25 available to the API [312] for further processing. For example, after receiving the restoration request from the transceiver unit [302], the restoration unit [306] activates the restore manager [308] to manage the movement of backup files from the backup server [310]. The restore manager [308] access the backup server [310] to retrieve the selected files and then transfers them securely to the API [312], which 30 serves as the interface for executing the restoration process. For example, if
21
multiple backup files need to be restored simultaneously, the restore manager [308]
is responsible for managing the process efficiently such that all the files from the backup server [310] are queued and moved to the API without any conflicts.
[0072]
The restoration unit [306] is further configured to execute a restoration 5 process, via the API [312], for restoring the one or more VNF nodes based on the one or more backup files. Once the backup files are successfully transferred from the backup server [310] to the API [312], the restoration unit [306] initiates the actual restoration process. For example, after the backup files are moved via the restore manager [308] to the API [312], the restoration unit [306] begins the task of 10 analysing the backup files, verifying their integrity, and then executing the restoration commands through the API [312]. The API [312] acts as the interface that bridges the system components, allowing the restoration unit [306] to perform the necessary steps to reinstate each VNF node based on its corresponding backup file. The restoration process may include steps such as redeploying virtual 15 instances, reconfiguring settings, or restarting network functions, depending on the nature of the backup file and the VNF node being restored. For example, a VNF responsible for handling firewall functions has failed. The restoration unit [306] would execute the restoration process via the API [312] by applying the backup file for that firewall VNF such that all security configurations and firewall rules are 20 restored to their previous state.
[0073]
The restoration unit [306] is further configured to send, via the API [312] to the restore manager [308], one of a successful restoration notification and an unsuccessful restoration notification for each of the one or more VNF nodes, 25 wherein the successful restoration notification is sent in an event of a successful restoration of a first subset of the one or more VNF nodes, and the unsuccessful restoration notification is sent in an event of an unsuccessful restoration of a second subset of the one or more VNF nodes. For example, once the restoration process for a group of VNF nodes is initiated, the restoration unit [306] monitors the progress 30 of each node's recovery. If a subset of the VNF nodes is successfully restored, the
22
restoration unit [306] sends a successful restoration notification via the API [312]
to the restore manager [308], indicating that these nodes are now operational. However, if another subset of VNF nodes fails to restore, either due to a corrupted backup file or a system error, the restoration unit [306] will generate an unsuccessful restoration notification for those specific nodes. For example, a set of 5 five VNF nodes is being restored, and three of them are successfully restored while two encounter issues. The restoration unit [306] would send a successful restoration notification for the three nodes and an unsuccessful notification for the two nodes that failed.
10
[0074]
The restoration unit is further configured to send, via the API [312], to an updating unit [314], an update notification in an event the successful restoration of the VNF node is sent to the restore manager [308], wherein the update notification is processed by the inventory manager [316]. After a successful restoration of one or more VNF nodes, the system must update its internal records to reflect the current 15 status of the restored nodes. For example, once the restoration unit [306] completes the restoration process and sends a successful restoration notification to the restore manager [308], it simultaneously triggers an update notification to the updating unit [314]. The update notification contains the details of the VNF nodes that were restored, such as node IDs, configuration settings, and any other relevant 20 operational data. The updating unit [314] then passes the information to the inventory manager [316], which processes the update notification and updates the database [318]. For example, if a particular VNF node responsible for handling network traffic is successfully restored, the restoration unit will ensure that this event is logged by sending an update notification. The inventory manager [316] 25 processes this notification, updating the system’s database to show that the specific VNF node is now operational and fully restored.
[0075]
In an exemplary aspect, the moving, by the restoration unit [306] via the restore manager [308], of each backup file stored in the backup server [310] to the 30 API [312] comprises sending a request for starting the restoration process. For
23
example, when the restoration unit [306] receives the user's request to restore one
or more VNF nodes, it sends a formal request to the restore manager [308] to initiate the process. The restore manager [308] then contacts the backup server [310] to locate the specific backup files associated with the requested VNF nodes. Once identified, the restore manager moves these files to the API [312], which serves as 5 the interface through which the restoration process is executed. For example, the request acts as a trigger, starting the restoration process such that all backup data is in the right location and ready to be processed. Without the initial request, the restoration process would not begin, and the system would be unable to recover the VNF nodes from the backup server [310]. 10
[0076]
In an exemplary aspect, the processing of the update notification by the updating unit [314] via the inventory manager [316] comprises updating the details of the first subset of the one or more VNF nodes in the database [318] present in the storage unit [320]. The update notification, sent by the restoration unit [306], 15 contains information about the restored VNF nodes, such as their configurations, status, and any changes made during the restoration process. For example, once the first subset of VNF nodes is successfully restored, the updating unit [314] receives the update notification from the restoration unit. This notification is then processed by the inventory manager [316], which is responsible for managing and updating 20 the system's records. The inventory manager [316] ensures that the details of the restored nodes, such as their operational status, network configurations, and other associated parameters, are accurately updated in the database [318] stored within the storage unit [320]. For example, if the system restores three VNF nodes out of five, the update notification will include details specific to those three nodes. The 25 inventory manager [316] will then update the database [318] to reflect that these three nodes are now operational and functioning as intended.
[0077]
In an exemplary aspect, the details refer to the information that needs to be updated in the database after a successful restoration. The details can include, but 30 not limited only to Operational Status, Configuration Settings, Resource
24
Allocations, firmware Version, Timestamps, Error or Warning Logs. For example,
the operational status of a VNF node—whether it is active, inactive, or in a restored state—must be updated. Following a restoration, the status changes from "inactive" or "failed" to "active" or "restored." Additionally, configuration settings such as IP addresses, routing rules, firewall configurations, or network settings that may have 5 been altered during the restoration must also be recorded.
[0078]
In an exemplary aspect, the first subset refers to a group of VNF nodes that are successfully restored in the initial phase of the restoration process. In large or complex networks, VNF nodes may be restored in batches rather than all at once 10 due to various factors, such as restoration times, resource availability, or dependencies between nodes. "The first subset" is the group of nodes that were restored first, before the remaining nodes. For example, a network with ten VNF nodes undergoes a restoration following a failure. If five of these nodes are successfully restored first, this group becomes the first subset. The remaining five 15 nodes may still be in the process of restoration or experiencing delays. However, the system can immediately update the database with the details of this first subset, reflecting their restored status, operational parameters, and resource usage.
[0079]
Referring to FIG. 4, an exemplary method flow diagram [400] for 20 restoration of one or more virtual network function (VNF) nodes in a network environment, in accordance with exemplary implementations of the present disclosure is shown. In an implementation the method [400] is performed by the system [300]. Further, in an implementation, the system [300] may be present in a server device to implement the features of the present disclosure. Also, as shown in 25 FIG. 4, the method [400] starts at step [402].
[0080]
At step 404, the method [400] comprises receiving, by a transceiver unit [302], via a user interface [304], a request for restoration of the one or more VNF nodes. 30
25
[0081]
The transceiver unit [302] acts as a bridge between the user and the system, enabling communication and processing of restoration requests. For example, when a network administrator identifies a failure in one or more VNF nodes, they can access the user interface [304], which could be a graphical interface on a computer or a mobile application—and select the specific backup files associated with the 5 failed VNF nodes for restoration. Once the user makes the selection, the transceiver unit [302] receives the restoration request, including the details of the selected VNF backup profiles. The transceiver unit [302] then forwards the request to the restoration unit [306] for further processing. For example, if a VNF responsible for network routing fails, the system will allow the user to initiate the restoration of this 10 specific function. The transceiver unit [302] processes the user’s restoration request and route to the relevant components of the system, such as the restoration unit [306].
[0082]
In an exemplary aspect, the request is based on a selection of one or more 15 backup files for the one or more VNF nodes, wherein a respective backup file is selected for each of the one or more VNF nodes. When initiating the restoration process, the user or system identifies which VNF nodes require restoration, and corresponding backup files are chosen for each of these nodes. Each VNF node has its own unique backup file, which contains all the necessary data, configurations, 20 and settings needed to restore that specific node to its previous state. The selection enables that the right backup file is matched to the correct VNF node, allowing for a precise and efficient restoration. For example, if a network comprises several different VNF nodes, such as those handling traffic management, security, and load balancing, each of these nodes will have its own backup file. When a restoration is 25 needed, the appropriate backup file for each VNF is selected, ensuring that each node is restored according to its specific requirements.
[0083]
At step 406, the method [400] comprises sending, by the transceiver unit [302] to a restoration unit [306], the request for restoration of the one or more VNF 30 nodes.
26
[0084]
After receiving the user's input through the user interface [304], the transceiver unit [302] processes and formats the restoration request such that all relevant details, such as the identification of the VNF nodes and their associated backup files, are correctly included. The request is then transmitted to the 5 restoration unit [306], which is responsible for managing the actual restoration process. For example, once the network administrator selects the specific VNF nodes for restoration, the transceiver unit [302] prepares the data and sends it to the restoration unit [306]. This could involve confirming the availability of the selected backup files, the status of the nodes, and other parameters that are essential for 10 restoring the VNF nodes. For example, if multiple VNF nodes need restoration, the transceiver unit [302] may also batch these requests and send them in an organized manner, ensuring that the restoration unit [306] can process them efficiently. It would be appreciated by the person skilled in the art that the setup reduces complexity for the user and increases the rate at which the restoration process is 15 initiated, allowing the system to quickly recover from failures or disruptions.
[0085]
At step 408, the method [400] comprises moving, by the restoration unit [306], via a restore manager [308], each of the selected one or more backup files stored in a backup server [310] to an application programming interface (API) 20 [312].
[0086]
The process involves identifying and selecting the appropriate backup files that correspond to the VNF nodes marked for restoration such that the files are retrieved from the backup server [310] and made available to the API [312] for 25 further processing. For example, after receiving the restoration request from the transceiver unit [302], the restoration unit [306] activates the restore manager [308] to manage the movement of backup files from the backup server [310]. The restore manager [308] access the backup server [310] to retrieve the selected files and then transfers them securely to the API [312], which serves as the interface for executing 30 the restoration process. For example, if multiple backup files need to be restored
27
simultaneously, the restore manager [308] is responsible for managing the process
efficiently such that all the files from the backup server [310] are queued and moved to the API [312] without any conflicts.
[0087]
At step 410, the method [400] comprises executing, by the restoration unit 5 [306], via the API [312], a restoration process for restoring the one or more VNF nodes based on the one or more backup files.
[0088]
Once the backup files are successfully transferred from the backup server [310] to the API [312], the restoration unit [306] initiates the actual restoration 10 process. For example, after the backup files are moved via the restore manager [308] to the API [312], the restoration unit [306] begins the task of analysing the backup files, verifying their integrity, and then executing the restoration commands through the API [312]. The API [312] acts as the interface that bridges the system components, allowing the restoration unit [306] to perform the necessary steps to 15 reinstate each VNF node based on its corresponding backup file. The restoration process may include steps such as redeploying virtual instances, reconfiguring settings, or restarting network functions, depending on the nature of the backup file and the VNF node being restored. For example, a VNF responsible for handling firewall functions has failed. The restoration unit [306] would execute the 20 restoration process via the API [312] by applying the backup file for that firewall VNF such that all security configurations and firewall rules are restored to their previous state.
[0089]
At step 412, the method [400] comprises sending, by the restoration unit 25 [306], via the API [312] to the restore manager [308], one of a successful restoration notification and an unsuccessful restoration notification for each of the one or more VNF nodes, wherein the successful restoration notification is sent in an event of a successful restoration of a first subset of the one or more VNF nodes, and the unsuccessful restoration notification is sent in an event of an unsuccessful 30 restoration of a second subset of the one or more VNF nodes.
28
[0090]
For example, once the restoration process for a group of VNF nodes is initiated, the restoration unit [306] monitors the progress of each node's recovery. If a subset of the VNF nodes is successfully restored, the restoration unit [306] sends a successful restoration notification via the API [312] to the restore manager 5 [308], indicating that these nodes are now operational. However, if another subset of VNF nodes fails to restore, either due to a corrupted backup file or a system error, the restoration unit [306] will generate an unsuccessful restoration notification for those specific nodes. For example, a set of five VNF nodes is being restored, and three of them are successfully restored while two encounter issues. The restoration 10 unit [306] would send a successful restoration notification for the three nodes and an unsuccessful notification for the two nodes that failed.
[0091]
At step 414, the method [400] comprises sending, by the restoration unit [306], via the API [312] to an updating unit [314], an update notification in an event 15 the successful restoration of the first subset of the one or more VNF nodes is sent to the restore manager [308], wherein the update notification is processed by an inventory manager [316].
[0092]
After a successful restoration of one or more VNF nodes, the system must 20 update its internal records to reflect the current status of the restored nodes. For example, once the restoration unit [306] completes the restoration process and sends a successful restoration notification to the restore manager [308], it simultaneously triggers an update notification to the updating unit [314]. The update notification contains the details of the VNF nodes that were restored, such as node IDs, 25 configuration settings, and any other relevant operational data. The updating unit [314] then passes the information to the inventory manager [316], which processes the update notification and updates the database [318]. For example, if a particular VNF node responsible for handling network traffic is successfully restored, the restoration unit will ensure that this event is logged by sending an update 30 notification. The inventory manager [316] processes this notification, updating the
29
system’s database to show that the specific VNF node is now operational and fully
restored.
[0093]
At step 416, the method [400] terminates.
5
[0094]
Referring to FIG. 5, an exemplary block diagram of a system architecture [500] for restoring one or more virtual network function (VNF) nodes in a network environment is shown, in accordance with the exemplary implementations described in the claims.
10
[0095]
The system architecture [500] comprises a user interface [304] that allows a user or network administrator to initiate a request for restoring one or more VNF nodes by selecting the appropriate backup files. The request is sent to a transceiver unit [302], which receives the user's input and forwards the restoration request to a restoration unit [306]. The restoration unit [306], in coordination with a restore 15 manager [308], manages the movement of each backup file from a backup server [310] to an application programming interface (API) [312].
[0096]
Once the backup files are retrieved from the backup server [310], the restoration unit [306] executes the restoration process through the API [312]. This 20 process involves using the backup files to restore the selected VNF nodes to their operational state, ensuring that the VNF nodes resume their previous configurations and functionalities. The API serves as the intermediary for performing these technical operations, handling the restoration commands from the restoration unit [306]. 25
[0097]
In an exemplary implementation, the restore manager [308] is responsible for managing the restoration process such that the correct backup files are processed. Once the restoration is complete, the restoration unit [306] sends either a successful restoration notification or an unsuccessful restoration notification to 30 the restore manager [308]. If a subset of the VNF nodes is successfully restored, the
30
successful restoration notification is sent; otherwise, an unsuccessful restoration
notification is sent if any nodes encounter issues during the restoration process.
[0098]
After a successful restoration, the restoration unit [306] sends an update notification to an updating unit [314] via the API [312]. The update notification is 5 processed by an inventory manager [316], which updates the details of the restored VNF nodes in a database [318] stored in a storage unit [320]. This ensures that the system's records are up to date, reflecting the operational status of the restored VNF nodes.
10
[0099]
Referring to FIG. 6, an exemplary process [600] flow diagram for restoring one or more virtual network function (VNF) nodes in a network environment, in accordance with exemplary implementations of the present disclosure, is shown. In this implementation, the process [600] is performed by the system [300] outlined in the claims. Further, the system [300] may be deployed on a server to implement the 15 restoration features described in the present disclosure. As shown in FIG. 6, the method [600] begins at step [602].
[0100]
At step [604], the process [600] involves selecting one or more appropriate VNF backup files for restoration from a list of backups stored in the VNF backup 20 system. A user or network administrator initiates the restoration request by selecting the backup profiles displayed on the user interface [304] associated with the specific VNF nodes needing restoration. This selection process ensures that the correct backup files are chosen for each VNF node to facilitate an accurate restoration.
25
[0101]
At step [606], after selecting the relevant backup files through the user interface [304], the process [600] comprises sending a request for restoration of the selected VNF nodes to a Restore Manager [306]. Upon receiving the request, the transceiver unit [302] transmits the restoration request to the Restore Manager [306], which is responsible for initiating the restoration process for the selected 30 VNF nodes.
31
[0102]
At step [608], the Restore Manager [306] service moves the appropriate backup files from the backup server [310] (such as an FTP server) to a restore manager [308], which further communicates with an application programming interface (API) [312] to begin the restoration process. In this step, the API [312] 5 ensures that the backup files are used to restore the VNF nodes, thereby minimizing downtime and preserving data integrity. The restoration process guarantees that the restored VNFs accurately reflect their previously backed-up state, which is critical for maintaining the system's functionality and avoiding service disruptions.
10
[0103]
At step [610], after completing the restoration of the VNF nodes, the API [312] notifies the Restore Manager [306] of the restoration status, whether successful or unsuccessful. The transceiver unit [302] transmits this restoration status from the API [312] to the restore manager [308], which handles various outcomes. For example, a successful restoration notification is sent if the VNF 15 nodes have been restored correctly, or an unsuccessful notification is sent if errors occur during the process. This status allows the system [300] to track the restoration progress and provides feedback to the user.
[0104]
At step [612], in the event of a successful restoration, the Restore Manager 20 [306] sends an update notification to the updating unit [314], which is further processed by the inventory manager [316]. The inventory manager [316] updates the details of the restored VNF nodes in a database [318] located within a storage unit [320]. The updating process ensures that the system's records reflect the current state of the restored VNF nodes, providing accurate information for future 25 operations and maintenance. This ensures the system remains synchronized with the real-time status of the network functions.
[0105]
At step 612, the process [600] terminates.
30
32
[0106]
The present disclosure further discloses a non-transitory computer-readable storage medium storing instruction for restoration of one or more virtual network function (VNF) nodes which, when executed by one or more units of a system [300], causes: a transceiver unit [302] to receive, via a user interface [304], a request for restoration of the one or more VNF nodes; the transceiver unit [302] to send, to 5 a restoration unit [306], the request for restoration of the one or more VNF nodes; the restoration unit [306] to move, via a restore manager [308], each backup file of the one or more backup files stored in a backup server [310] to an application programming interface; the restoration unit [306] to execute a restoration process, via an API [312], for restoring the one or more VNF nodes based on the one or 10 more backup files; the restoration unit [306] to send, via the API [312] to the restore manager [308], one of a successful restoration notification and an unsuccessful restoration notification for each of the one or more VNF nodes; and the restoration unit [306] to send, via the API [312], to an updating unit [314], an update notification in an event the successful restoration of the VNF node is sent to the 15 restore manager [308], wherein the update notification is processed by an inventory manager [316].
[0107]
The present disclosure further discloses a user equipment (UE) comprising a processor configured to receive, via a user interface [304], a request for restoration 20 of the one or more VNF nodes, wherein for restoration of one or more virtual network function (VNF) nodes, process comprises sending, to a restoration unit [306], the request for restoration of the one or more VNF nodes; moving, via a restore manager [308], each of the selected one or more backup files stored in a backup server [310] to an application programming interface (API) [312]; 25 executing, via the API [312], a restoration process for restoring the one or more VNF nodes based on the one or more backup files; sending, via the API [312] to the restore manager, one of a successful restoration notification and an unsuccessful restoration notification for each of the one or more VNF nodes; and sending, via the API [312] to an updating unit [314], an update notification in an event the 30 successful restoration of the first subset of the one or more VNF nodes is sent to the
33
restore manager
[308], wherein the update notification is processed by an inventory manager [316].
[0108]
As is evident from the above, the present invention provides a technically advanced solution for restoring one or more virtual network function (VNF) nodes 5 in a network environment. The present solution enables swift recovery of VNFs from backup profiles, ensuring minimal downtime and service disruption. By allowing applications to resume normal operations quickly after a failure or data loss event, the solution helps maintain continuous network functionality. Moreover, the restoration process preserves data integrity, ensuring that the restored VNFs are 10 accurate representations of their previously backed-up states, thereby reducing the risk of data corruption or inconsistencies.
[0109]
Further, in accordance with the present disclosure, it is to be acknowledged that the functionality described for the various the components/units can be 15 implemented interchangeably. While specific embodiments may disclose a particular functionality of these units for clarity, it is recognized that various configurations and combinations thereof are within the scope of the disclosure. The functionality of specific units as disclosed in the disclosure should not be construed as limiting the scope of the present disclosure. Consequently, alternative 20 arrangements and substitutions of units, provided they achieve the intended functionality described herein, are considered to be encompassed within the scope of the present disclosure.
[0110]
While considerable emphasis has been placed herein on the disclosed 25 implementations, it will be appreciated that many implementations can be made and that many changes can be made to the implementations without departing from the principles of the present disclosure. These and other changes in the implementations of the present disclosure will be apparent to those skilled in the art, whereby it is to be understood that the foregoing descriptive matter to be implemented is illustrative 30 and non-limiting.

We Claim:

1. A method for restoration of one or more virtual network function (VNF) nodes, the method comprising:
-
receiving, by a transceiver unit [302], via a user interface [304], a request for restoration of the one or more VNF nodes;
-
sending, by the transceiver unit [302] to a restoration unit [306], the request for restoration of the one or more VNF nodes;
-
moving, by the restoration unit [306], via a restore manager [308], one or more backup files stored in a backup server [310] to an application programming interface (API) [312];
-
executing, by the restoration unit [306], via the API [312], a restoration process for restoring the one or more VNF nodes based on the one or more backup files;
-
sending, by the restoration unit [306], via the API [312] to the restore manager [308], one of a successful restoration notification and an unsuccessful restoration notification for each of the one or more VNF nodes; and
-
sending, by the restoration unit [306], via the API [312] to an updating unit [314], an update notification in an event the successful restoration of a first subset of the one or more VNF nodes is sent to the restore 20 manager [308], wherein the update notification is processed by an inventory manager [316].

2.The method as claimed in claim 1, wherein the moving, by the restoration unit via the restore manager [308], each of the one or more backup files 25 stored in the backup server [310] to the API [312] comprises:
-
sending, a request for starting the restoration process.

3.The method as claimed in claim 1, wherein the processing of the update notification by the updating unit [314] via the inventory manager [316] 30 comprises:
35
-
Updating details of the first subset of the one or more VNF nodes in a database [318] present in a storage unit [320].

4.The method as claimed in claim 1, wherein the request is based on a selection of one or more backup files for the one or more VNF nodes, 5 wherein a respective backup file is selected for each of the one or more VNF nodes.

5.The method as claimed in claim 1, wherein the successful restoration notification is sent in an event of a successful restoration of the first subset 10 of the one or more VNF nodes, and the unsuccessful restoration notification is sent in an event of an unsuccessful restoration of a second subset of the one or more VNF nodes.

6.A system for restoration of one or more virtual network function (VNF) 15 nodes, the system comprising:
-
a transceiver unit [302] configured to:
o
receive, via a user interface [304], a request for restoration of the one or more VNF nodes;
o
send, to a restoration unit [306], the request for restoration of the 20 one or more VNF nodes;
-
a restoration unit [306] configured to:
o
move, via a restore manager [308], each backup file of the one or more backup files stored in a backup server [310] to an application programming interface; 25
o
execute a restoration process, via the API [312], for restoring the one or more VNF nodes based on the one or more backup files;
o
send, via the API [312] to the restore manager [308], one of a successful restoration notification and an unsuccessful restoration notification for each of the one or more VNF nodes; 30 and
36
o
send, via the API [312], to an updating unit [314], an update notification in an event the successful restoration of a first subset of the one or more VNF nodes is sent to the restore manager [308], wherein the update notification is processed by an inventory manager [316]. 5

7.The system as claimed in claim 6, wherein the moving, by the restoration unit [306] via the restore manager [308] the each of the one or more backup files stored in the backup server [310] to the API [312] comprises:
-
sending, a request for starting the restoration process. 10

8.The system as claimed in claim 6, wherein the processing of the update notification by the updating unit [314] via the inventory manager [316] comprises:
-
updating details of the first subset of the one or more VNF nodes in a 15 database [318] present in a storage unit [320].

9.The system as claimed in claim 6, wherein the request is based on a selection of one or more backup files for the one or more VNF nodes, wherein a respective backup file is selected for each of the one or more VNF nodes. 20

10.The system as claimed in claim 6, wherein the successful restoration notification is sent in an event of a successful restoration of the first subset of the one or more VNF nodes, and the unsuccessful restoration notification is sent in an event of an unsuccessful restoration of a second subset of the 25 one or more VNF nodes.

11.A user equipment (UE) comprising:
-
a processor configured to:
37
o
receive, via a user interface [304], a request for restoration of one or more VNF nodes, wherein for restoration of one or more virtual network function (VNF) nodes, process comprises:
▪
sending, to a restoration unit [306], the request for restoration of the one or more VNF nodes; 5
▪
moving, via a restore manager [308], one or more backup files stored in a backup server [310] to an application programming interface (API) [312];
▪
executing, via the API [312], a restoration process for restoring the one or more VNF nodes based on the one 10 or more backup files;
▪
sending, via the API [312] to the restore manager [308], one of a successful restoration notification and an unsuccessful restoration notification for each of the one or more VNF nodes; and 15
▪
sending, via the API [312] to an updating unit [314], an update notification in an event the successful restoration of a first subset of the one or more VNF nodes is sent to the restore manager [308], wherein the update notification is processed by an inventory manager [316].