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 AUTOMATED END-TO-END TESTING AND VALIDATION OF TELECOMMUNICATION 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.

METHOD AND SYSTEM FOR AUTOMATED END-TO-END TESTING AND VALIDATION OF TELECOMMUNICATION NODES
FIELD OF INVENTION
[0001] Embodiments of the present disclosure generally relate to network performance management systems. More particularly, embodiments of the present disclosure relate to method and system for automated end-to-end testing and validation of telecommunication nodes.
BACKGROUND
[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 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 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. 3G technology marked the introduction of high-speed internet access, mobile 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 communication

technology has become more advanced, sophisticated, and capable of delivering more services to its users.
[0004] Existing commercial test benches often only validate whether the information flow is complete. They generally focus only on a few mandatory and important Information Elements (IEs) of the application layer protocol. This limits the scope and depth of the testing process. The existing solutions do not provide the flexibility for test users to add or remove the verification of Information Elements (IEs) according to their specific needs. This limits the user's ability to tailor the testing process to their unique requirements. There are instances where validation of different layers of the Open Systems Interconnection (OSI) model is required along with the application layer. The existing solutions lack the capability to carry out this comprehensive form of testing. Current testing solutions do not offer the flexibility to perform pre-execution steps before the actual start of test cases. This restricts the user's ability to prepare adequately for the testing process. Existing systems do not offer the flexibility to validate Information Elements (IEs) present in different packets and/or different nodes. This can result in a lack of comprehensive validation in the testing process. Current solutions do not offer support to validate Key Performance Indicators (KPIs) or counters, which are crucial components of the post-execution step. For the commercial test benches available today, any introduction of a new communication network protocol or new information flow by the 3rd Generation Partnership Project (3GPP) specifications requires significant development effort, making it a time-consuming process.
[0005] Therefore, in light of the foregoing discussion, there exists a need to overcome the aforementioned drawbacks.
[0006] Thus, there exists an imperative need in the art to provide a method and system for automated end-to-end testing and validation of telecommunication nodes. The proposed invention provides an end-to-end automated testing and

validation system for telecommunication nodes that provides more control and flexibility to the test user, addressing the problems in the traditional methods.
SUMMARY
[0007] 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.
[0008] An aspect of the present disclosure may relate to a method for automated end-to-end testing and validation of telecommunication nodes. The method includes generating, by a configuration manager, a test case having a predefined criteria for a plurality of nodes of a network, wherein the predefined criteria comprise at least a predefined identification criteria and a predefined validation criteria. The method further includes executing, by an execution unit, the configured test case for a set of nodes selected from the plurality of nodes. Furthermore, based on the executing of the generated test the method further includes retrieving, by a packet collector unit, a set of packet traces from the set of nodes. The method further includes identifying, by a packet identifier unit, a set of target packets from the retrieved set of packet traces based on the predefined identification criteria. The method further includes determining, by a packet attribute validation unit, a test result based on a validation of a set of attributes associated with the identified set of target packets against the predefined validation criteria.
[0009] In an exemplary aspect of the present disclosure, the generating comprises defining global parameters, server details of the plurality of nodes of the network for retrieving of the set of packet traces, setting packet identification criteria, and establishing criteria for comparing attribute values present in packets.

[0010] In an exemplary aspect of the present disclosure, the method further comprises storing the retrieved set of packet traces on a storage unit.
[0011] In an exemplary aspect of the present disclosure, the method further comprises scheduling, by a test case scheduler, the generated test case after a predefined time period.
[0012] In an exemplary aspect of the present disclosure, the method further comprises generating, by a report generator unit, a report based on the determined test result.
[0013] In an exemplary aspect of the present disclosure, the method further comprises emulating, by a test emulator, the generated test case on the set of nodes.
[0014] In an exemplary aspect of the present disclosure, the method further comprises filtering, by a filter unit, the set of packet traces to determine the set of target packets.
[0015] Another aspect of the present disclosure may relate to a system for automated end-to-end testing and validation of telecommunication nodes. The system comprises a configuration manager configured to generate a test case having a predefined criteria for a plurality of nodes of a network, the predefined criteria comprise at least a predefined identification criteria and a predefined validation criteria. The system further comprises an execution unit configured to execute the configured test case for a set of nodes selected from the plurality of nodes. The system further comprises a packet collector unit configured to retrieve a set of packet traces from the set of nodes based on the execution of the generated test case. The system further comprises a packet identifier unit configured to identify a set of target packets from the retrieved set of packet traces based on the predefined identification criteria. The system further comprises a packet attribute validation unit configured to determine a test result based on a validation of a set of attributes

associated with the identified set of target packets against the predefined validation criteria.
[0016] Yet another aspect of the present disclosure may relate to a non-transitory computer readable storage medium storing instructions for automated end-to-end testing and validation of telecommunication nodes, the instructions include executable code which, when executed by one or more units of a system, causes: a configuration manager configured to generate a test case having a predefined criteria for a plurality of nodes of a network, the predefined criteria comprises at least a predefined identification criteria and a predefined validation criteria; an execution unit configured to execute the configured test case for a set of nodes selected from the plurality of nodes; a packet collector unit configured to retrieve a set of packet traces from the set of nodes based on the execution of the generated test case; a packet identifier unit configured to identify a set of target packets from the retrieved set of packet traces based on the predefined identification criteria; and a packet attribute validation unit configured to determine a test result based on a validation of a set of attributes associated with the identified set of target packets against the predefined validation criteria.
OBJECTS OF THE INVENTION
[0017] Some of the objects of the present disclosure, which at least one embodiment disclosed herein satisfies are listed herein below.
[0018] Some of the objects of the present disclosure, which at least one embodiment disclosed herein satisfies are listed herein below.
[0019] It is an object of the present disclosure to provide a method and system for automated end-to-end testing and validation of telecommunication nodes.

[0020] It is another object of the present disclosure to provide a method and system for automated end-to-end testing and validation of telecommunication nodes that facilitates comprehensive validation of information flow. The invention aims to validate not just a few mandatory and important Information Elements (IEs), but all the elements required for a more robust validation.
[0021] It is yet another object of the present disclosure to provide a method and system for automated end-to-end testing and validation of telecommunication nodes that seeks to give test users more control over the testing process. It aims to allow users to add or remove the verification of Information Elements (IEs) according to their specific requirements.
[0022] It is yet another object of the present disclosure to provide a method and system for automated end-to-end testing and validation of telecommunication nodes that enables for validation of different layers of the Open Systems Interconnection (OSI) model, along with the application layer, for a more complete understanding of the network's functioning.
[0023] It is yet another object of the present disclosure to provide a method and system for automated end-to-end testing and validation of telecommunication nodes that enables users the flexibility to perform pre-execution steps before the actual start of test cases, for improved test planning and preparation.
[0024] It is yet another object of the present disclosure to provide a method and system for automated end-to-end testing and validation of telecommunication nodes that seeks to validate current Information Elements (IEs) based on the value of Information Elements (IEs) present in different packets and/or across different nodes for a more robust and extensive testing procedure.
[0025] It is yet another object of the present disclosure to provide a method and system for automated end-to-end testing and validation of telecommunication nodes

that offer support for the validation of Key Performance Indicators (KPIs) or counters, crucial elements of post-test evaluation.
[0026] It is yet another object of the present disclosure to provide a method and system for automated end-to-end testing and validation of telecommunication nodes that aims to quickly and efficiently adapt to the introduction of new communication network protocols or new information flows defined by the 3rd Generation Partnership Project (3GPP) specifications.
DESCRIPTION OF THE DRAWINGS
[0027] 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 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 disclosure. It will be appreciated by those skilled in the art that disclosure of such drawings includes disclosure of electrical components or circuitry commonly used to implement such components.
[0028] FIG. 1 illustrates an exemplary block diagram representation of 5th generation core (5GC) network architecture.
[0029] 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.

[0030] FIG. 3 illustrates an exemplary block diagram of a system for automated end-to-end testing and validation of telecommunication nodes in accordance with exemplary implementations of the present disclosure.
[0031] FIG. 4 illustrates a method flow diagram for automated end-to-end testing and validation of telecommunication nodes in accordance with exemplary implementations of the present disclosure.
[0032] The foregoing shall be more apparent from the following more detailed description of the disclosure.
DETAILED DESCRIPTION
[0033] 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 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.
[0034] 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 arrangement of elements without departing from the spirit and scope of the disclosure as set forth.

[0035] Specific details are given in the following description to provide a thorough understanding of the embodiments. However, it will be understood by one of 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.
[0036] 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 is terminated when its operations are completed but could have additional steps not included in a figure.
[0037] The word “exemplary” and/or “demonstrative” is used herein to mean serving as an example, instance, or illustration. For the avoidance of doubt, the 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 “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.
[0038] 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
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,
5 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 processing unit is a hardware processor.
[0039] As used herein, “a user equipment”, “a user device”, “a smart-user-device”,
10 “a smart-device”, “an electronic device”, “a mobile device”, “a handheld device”,
“a wireless communication device”, “a mobile communication device”, “a
communication device” may be any electrical, electronic and/or computing device
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
15 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
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
20 such unit(s) which are required to implement the features of the present disclosure.
[0040] As used herein, “storage unit” or “memory unit” refers to a machine or computer-readable medium including any mechanism for storing information in a form readable by a computer or similar machine. For example, a computer-readable
25 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 that may be required by one or more units of the system to perform their respective functions.
30
11

[0041] As used herein “interface” or “user interface refers to a shared boundary
across which two or more separate components of a system exchange information
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
5 each other, which also includes the methods, functions, or procedures that may be
called.
[0042] All modules, units, components used herein, unless explicitly excluded herein, may be software modules or hardware processors, the processors being a
10 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, Application Specific Integrated Circuits (ASIC), Field Programmable Gate Array circuits (FPGA), any other type of integrated circuits, etc.
15
[0043] As used herein the transceiver unit include at least one receiver and at least one transmitter configured respectively for receiving and transmitting data, signals, information or a combination thereof between units/components within the system and/or connected with the system.
20
[0044] As used herein, nodes of the network refer to a collection of network elements within a telecommunication system that perform various functions. The nodes can include, but are not limited to, components such as the Home Subscriber Server (HSS), Mobility Management Entity (MME), Serving Gateway (SGW),
25 Packet Data Network Gateway (PGW), Policy and Charging Rules Function
(PCRF), and various evolved Node B (eNodeBs).
[0045] As used herein, ‘criteria’ is referred to as a method to read the value of
information element defined by a user or a network administrator or an authorized
30 person and match it either with a constant or to a variable pointing towards other
information element. Further used herein, predefined identification criteria are
12

referred to as an input from the user from multiple criteria to identify the correct packet.
[0046] As used herein, predefined validation criteria are defined as the standards or
5 rules that determine whether a test case has passed or failed. These are derived from
the user requirements and specifications, and they describe the expected behaviour, functionality, performance, and usability of the system under the test.
[0047] As discussed in the background section, the current known solutions have
10 several shortcomings. The present disclosure aims to overcome the above-
mentioned and other existing problems in this field of technology by providing method and system for automated end-to-end testing and validation of telecommunication nodes.
15 [0048] FIG. 1 illustrates an exemplary block diagram representation of 5th
generation core (5GC) network architecture, in accordance with exemplary 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
20 Management Function (SMF) [108], a Service Communication Proxy (SCP) [110],
an Authentication Server Function (AUSF) [112], a Network Slice Specific Authentication and Authorization Function (NSSAAF) [114], a Network Slice Selection Function (NSSF) [116], a Network Exposure Function (NEF) [118], a Network Repository Function (NRF) [120], a Policy Control Function (PCF) [122],
25 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 the person skilled in the art for implementing features of the present disclosure.
30 [0049] Radio Access Network (RAN) [104] is the part of a mobile
telecommunications system that connects user equipment (UE) [102] to the core
13

network (CN) and provides access to different types of networks (e.g., 5G network). It consists of radio base stations and the radio access technologies that enable wireless communication.
5 [0050] Access and Mobility Management Function (AMF) [106] is a 5G core
network function responsible for managing access and mobility aspects, such as UE registration, connection, and reachability. It also handles mobility management procedures like handovers and paging.
10 [0051] Session Management Function (SMF) [108] is a 5G core network function
responsible for managing session-related aspects, such as establishing, modifying, and releasing sessions. It coordinates with the User Plane Function (UPF) for data forwarding and handles IP address allocation and QoS enforcement.
15 [0052] Service Communication Proxy (SCP) [110] is a network function in the 5G
core network that facilitates communication between other network functions by providing a secure and efficient messaging service. It acts as a mediator for service-based interfaces.
20 [0053] Authentication Server Function (AUSF) [112] is a network function in the
5G core responsible for authenticating UEs during registration and providing security services. It generates and verifies authentication vectors and tokens.
[0054] Network Slice Specific Authentication and Authorization Function
25 (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.
[0055] Network Slice Selection Function (NSSF) [116] is a network function
30 responsible for selecting the appropriate network slice for a UE based on factors
such as subscription, requested services, and network policies.
14

[0056] 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. 5
[0057] Network Repository Function (NRF) [120] is a network function that acts as a central repository for information about available network functions and services. It facilitates the discovery and dynamic registration of network functions.
10 [0058] Policy Control Function (PCF) [122] is a network function responsible for
policy control decisions, such as QoS, charging, and access control, based on subscriber information and network policies.
[0059] Unified Data Management (UDM) [124] is a network function that
15 centralizes the management of subscriber data, including authentication,
authorization, and subscription information.
[0060] Application Function (AF) [126] is a network function that represents
external applications interfacing with the 5G core network to access network
20 capabilities and services.
[0061] User Plane Function (UPF) [128] is a network function responsible for handling user data traffic, including packet routing, forwarding, and QoS enforcement. 25
[0062] Data Network (DN) [130] refers to a network that provides data services to user equipment (UE) in a telecommunications system. The data services may include but are not limited to Internet services, private data network related services.
30 [0063] FIG. 2 illustrates an exemplary block diagram of a computing device [200]
(also referred to herein as a computer system [200]) upon which the features of the
15

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 automated end-to-end testing and
validation of telecommunication nodes utilising the system. In another
5 implementation, the computing device [200] itself implements the method for
automated end-to-end testing and validation of telecommunication nodes 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.
10
[0064] The computing device [200] may include a bus [202] or other communication mechanism for communicating information, and a processor [204] coupled with bus [202] for processing information. The processor [204] may be, for example, a general-purpose microprocessor. The computing device [200] may also
15 include a main memory [206], such as a random-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
20 instructions, when stored in non-transitory storage media accessible to the processor
[204], render the computing device [200] into a special-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
25 instructions for the processor [204].
[0065] 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 [202] to a
30 display [212], such as a cathode ray tube (CRT), Liquid crystal Display (LCD),
Light Emitting Diode (LED) display, Organic LED (OLED) display, etc. for
16

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
5 a mouse, a trackball, or cursor direction keys, for communicating direction
information and command selections to the processor [204], and for controlling cursor movement on the display [212]. This 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.
10
[0066] 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.
15 According to one implementation, the techniques herein are performed by the
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
20 contained in the main memory [206] causes the processor [204] to perform the
process steps described herein. In alternative implementations of the present disclosure, hard-wired circuitry may be used in place of or in combination with software instructions.
25 [0067] The computing device [200] also may include a communication interface
[218] coupled to the bus [202]. The communication interface [218] provides a two-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
30 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
17

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
5 various types of information.
[0068] 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
10 transmit a requested code for an application program through the Internet [228], the
ISP [226], the local network [222], the 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.
15
[0069] 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
20 operate independently or as part of a network and can perform a variety of tasks
such as data storage, retrieval, and analysis. Additionally, computing device [200] 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.
25
[0070] Referring to FIG. 3, an exemplary block diagram of a system [300] for automated end-to-end testing and validation of telecommunication nodes is shown, in accordance with the exemplary implementations of the present disclosure. The system [300] comprises at least one configuration manager [302], at least one
30 execution unit [304], at least one packet collector unit [306], at least one packet
identifier unit [308], at least one packet attribute validation unit [310], at least one
18

test case scheduler [312], at least one storage unit [314], at least one report generator
unit [316], at least one test emulator unit [318], at least one filter unit [320], at least
one protocol analyser [322] and at least one logger [324]. Also, all of the
components/ units of the system [300] are assumed to be connected to each other
5 unless otherwise 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. 10
[0071] The system [300] is configured for automated end-to-end testing and validation of telecommunication nodes, with the help of the interconnection between the components/units of the system [300].
15 [0072] The system [300] comprises a configuration manager [302] configured to
generate a test case having a predefined criteria for a plurality of nodes of a network. The predefined criteria comprise at least one of a predefined identification criteria and a predefined validation criteria. For example, the configuration manager [302] may generate a test case for the plurality of network nodes, such as Node A, Node
20 B, and Node C. The predefined criteria for the test case could include the predefined
identification criteria, such as internet protocol (IP) addresses or protocol headers that identify packets exchanged between the plurality of nodes. The generated test case may include defining a set of parameters to conduct testing of the plurality of nodes. In an exemplary aspect, generating the test case comprises defining global
25 parameters, server details of the plurality of network nodes for retrieving of the set
of packet traces, setting packet identification criteria, and establishing criteria for comparing attribute values present in packets. For example, in a test case involving the plurality of nodes such as Node A, Node B, and Node C, the configuration manager [302] generates a test case by first defining the global parameters like the
30 test duration, network type, and protocol to be used. Next, it details the server details
for the plurality of network nodes, such as IP addresses, port numbers, and
19

authentication credentials. The predefined identification criteria could involve
parameters like the source and destination IP addresses, a set of protocol headers,
or a set of unique identifiers within the packet traces. The predefined criteria for the
test case could include the predefined validation criteria. The predefined validation
5 criteria include verifying fields within the packet, such as sequence numbers,
timestamps, or payload data, conform to predefined values or patterns. For example, the test case might specify that a packet from Node A to Node B must contain a specific SIP (Session Initiation Protocol) header, and the payload may include set of instructions or commands.
10
[0073] In an exemplary aspect, generating the test case comprises defining global parameters, server details of the plurality of network nodes for retrieving of the set of packet traces, setting packet identification criteria, and establishing criteria for comparing attribute values present in packets. The global parameters include
15 settings such as the duration of the test, the types of protocols to be tested, and the
network topology. For example, if the test involves nodes A, B, and C, the global parameters will specify that the test will run for 24 hours using SIP and RTP protocols. The server details involve specifying the IP addresses, port numbers, and authentication credentials for each network node. For example, node A might have
20 an IP address of 192.168.1.1, port 5060, and require authentication tokens. Setting
packet identification criteria involves defining the characteristics that packets must have to be identified during the test. This could include the source and destination IP addresses, protocol headers, and unique identifiers within the packets. For example, the criteria might specify that a packet from node A to node B must have
25 a source IP of 192.168.1.1, a destination IP of 192.168.1.2, and include a SIP header
indicating a "REGISTER" message. Establishing criteria for comparing attribute values present in packets ensures the validation of the identified packets against expected conditions. This involves comparing values such as sequence numbers, timestamps, and payload content against predefined standards. For example, the
30 validation criteria might state that a packet from node B to node C should have a
20

sequence number that increments by one and a payload containing a set of instructions or commands.
[0074] The system [300] comprises the execution unit [304] communicatively
5 coupled to the configuration manager [302]. The execution unit [304] is configured
to execute the generated test case for a set of nodes selected from the plurality of nodes. The execution unit [304] operates by first receiving the test case from the configuration manager [302], which includes all the predefined criteria for the test case. Once the test case is received, the execution unit [304] initiates the test by
10 executing the steps outlined in the test case. For example, in a network having nodes
A, B, and C, the execution unit [304] selects these nodes based on the criteria specified in the test case. The execution unit [304] then proceeds to perform the actions required to execute the test. The execution may include configuring the set of nodes according to the test case, such as setting specific network configurations,
15 initiating communication protocols, and triggering any required pre-test conditions.
For example, if the test case specifies that node A should simulate a failure to test redundancy, the execution unit [304] will execute the necessary commands to bring down node A.
20 [0075] During the test execution, the execution unit [304] may interact with the set
of nodes to generate the required network traffic and monitor the interactions as specified in the test case. The interaction may include sending specific types of packets, initiating calls, or performing data transfers between the set of nodes. For example, the execution unit [304] may send SIP "INVITE" messages from node B
25 to node C to test call setup procedures. The execution unit [304] is further
configured to coordinate with other units, such as the packet collector unit [306], to ensure that packet traces are retrieved from the set of nodes during execution of the test case. Upon completion of the test case, the execution unit [304] performs any post-execution steps as defined in the test case. The post-execution steps can
30 include actions such as reconfiguring the set of nodes to their original state,
collecting logs, or performing any additional validations. For example, after testing
21

redundancy by bringing down node A, the execution unit [304] might bring node A back online and verify that normal operations resume correctly.
[0076] The system [300] comprises the packet collector unit [306]
5 communicatively coupled to the execution unit [304]. The packet collector unit
[306] is configured to retrieve a set of packet traces from the set of nodes based on the execution of the generated test case. The packet collector unit [306] operates by first receiving a trigger from the execution unit [304] once the test case execution begins. The trigger indicates that the packet collection process should start. For
10 example, in a network having nodes A, B, and C, once the execution unit [304]
executes the test case, it may send a command to the packet collector unit [306] to begin capturing the set of packet traces from the set of nodes. The packet collector unit [306] then connects to each of the set of nodes as specified in the test case, using the predefined server details such as IP addresses and port numbers, to start
15 capturing the set of packet traces. The packet collector unit [306] captures the set
of packet traces that occur during the test case execution period. For example, if the test case involves sending SIP "INVITE" messages from node B to node C, the packet collector unit [306] captures all the set of packet traces related to the communication, including any responses or additional messages that are part of the
20 test case. As the set of packet traces are collected, the packet collector unit [306]
stores them temporarily for further analysis. This involves organizing the set of packet traces data according to the set of nodes from which they were captured such that all relevant information, such as timestamps, source and destination addresses, and protocol-specific data, is accurately recorded.
25
[0077] Upon completion of the test case, the execution unit [304] sends a signal to the packet collector unit [306] to stop the capture of the set of packet traces. The packet collector unit [306] then retrieves the complete set of packet traces from the set of nodes and stores them in the storage unit [314] for analysis. For example, if
30 the test case aimed to validate the redundancy mechanism by bringing node A down
22

and observing the behaviour of nodes B and C, the packet collector unit [306] would have captured all relevant packet data before, during, and after node A's downtime.
[0078] The system [300] comprises the packet identifier unit [308]
5 communicatively coupled to the packet collector unit [306]. The packet identifier
unit [308] is configured to identify a set of target packets from the retrieved set of packet traces based on the predefined identification criteria. The packet identifier unit [308] operates by analysing the set of packet traces collected by the packet collector unit [306] and applying the predefined identification criteria defined in the
10 test case to identify the set of target packets of interest. For example, in a case where
the test case involves verifying a SIP registration process between nodes A and B, the predefined identification criteria might specify that the set of target packets include SIP "REGISTER" messages originating from node A and destined for node B. The packet identifier unit [308] would then scan through the set of packet traces
15 to identify the set of target packets matching this description. The identification
criteria can include various parameters such as source and destination IP addresses, protocol types, specific header fields, and unique identifiers within the packets. For example, if the identification criteria specify that the set of target packets must have a source IP address of 192.168.1.1, a destination IP address of 192.168.1.2, and
20 contain a SIP header with a "REGISTER" method, the packet identifier unit [308]
will identify the set of target packets that meet all these conditions.
[0079] The system [300] comprises the packet attribute validation unit [310] communicatively coupled to the packet identifier unit [308]. The packet attribute
25 validation unit [310] is configured to determine a test result based on a validation
of a set of attributes associated with the identified set of target packets against the predefined validation criteria. The packet attribute validation unit [310] operates by receiving the set of target packets identified by the packet identifier unit [308] and then analysing these packets according to the criteria specified in the test case. For
30 example, the test case involves verifying the correct transmission of SIP
"REGISTER" messages, the predefined validation criteria might include checking
23

the "To" and "From" headers, the "Call-ID," and the presence of a specific value in
the "CSeq" header. The packet attribute validation unit [310] will then extract the
set of attributes from the identified SIP "REGISTER" messages and compare them
against the predefined validation criteria (such as predefined values) defined in the
5 test case. The validation process involves detailed comparison of each of the set of
attributes within the set of target packets. For example, if the predefined validation criteria state that the "Call-ID" in the SIP "REGISTER" message must match a specific format or value, the packet attribute validation unit [310] will validate whether this condition is met. Similarly, it will check if the "CSeq" header contains
10 the correct sequence number and if the "To" and "From" headers have the correct
URI values. Once the packet attribute validation unit [310] completes the validation of all the set of attributes, it determines the test result based on whether the set of attributes of the target packets match the predefined criteria. If all attributes are validated successfully, the test case is marked as passed. If any attribute does not
15 meet the criteria, the test case is marked as failed. For example, if the "Call-ID"
does not match the expected value or if the "CSeq" header contains an incorrect sequence number, the test result will indicate a failure.
[0080] The system [300] comprises the test case scheduler [312] configured to
20 schedule the generated test case after a predefined time period. The test case
scheduler [312] operates by receiving the generated test case from the configuration
manager [302] and scheduling it to run at a specified time set by the user. For
example, if a user wants the test case to execute at 3:00 AM, the test case scheduler
[312] will initiate the test case at this exact time. The scheduling can also include
25 recurring tests, such as running the test case weekly at a specific time. By
configuring the test case scheduler [312] to manage the timing of test case
executions, the system [300] allows for efficient and automated testing without the
need for manual intervention, ensuring that tests are conducted at optimal times to
minimize network disruption.
30
24

[0081] The system [300] comprises the storage unit [314] to store the retrieved set
of packet traces. The storage unit [314] is configured for securely storing the
retrieved set of packet traces collected by the packet collector unit [306] from the
set of nodes during the execution of the generated test case. For example, after the
5 packet collector unit [306] retrieves the set of packet traces from nodes A, B, and
C during a SIP registration test, these traces are stored in the storage unit [314]. The storage unit [314] provides a reliable repository for all packet traces, enabling thorough and accurate validation of the telecommunication nodes.
10 [0082] The system [300] comprises the report generator unit [316] configured to
generate a report based on the determined test result. The report generator unit [316] operates by receiving the test result from the packet attribute validation unit [310], which includes the outcomes of the validation of the identified set of target packets against the predefined criteria. For example, if the test case involved verifying the
15 set of attributes of SIP "REGISTER" messages and the packet attribute validation
unit [310] determined that all criteria were met, the report generator unit [316] will compile this information into a detailed report. This report includes key details such as the test case executed, the set of nodes involved, the criteria used for validation, and the final result indicating whether the test case passed or failed. The generated
20 report provides a comprehensive summary of the test case, facilitating easy review
and analysis by users to ensure the telecommunication network meets the required standards.
[0083] The system [300] comprises the test emulator [318] to emulate the generated
25 test case on the set of nodes. The test emulator [318] operates by receiving the
generated test case from the configuration manager [302] and simulating the
specified network conditions and traffic patterns on the selected nodes. For
example, if the test case involves emulating a series of SIP "REGISTER" messages
from node A to node B, the test emulator [318] will generate and send these
30 messages according to the defined criteria. This emulation allows the system to
replicate real-world network scenarios and interactions, ensuring that the set of
25

nodes respond as expected under the test conditions. By emulating the generated test case, the test emulator [318] enables comprehensive and realistic testing of the plurality of nodes, ensuring their functionality and performance meet the required standards. 5
[0084] The system [300] comprises the filter unit [320] configured to filter the set of packet traces to determine the set of target packets. The filter unit [320] operates by receiving the packet traces retrieved by the packet collector unit [306] and applying predefined criteria to isolate the relevant packets needed for the test case.
10 For example, in a scenario where the test case involves identifying SIP
"REGISTER" messages, the filter unit [320] will scan through the packet traces and extract only those packets that match the criteria, such as specific source and destination IP addresses and the presence of SIP "REGISTER" headers. This filtering process ensures that only the pertinent packets are passed on to the packet
15 identifier unit [308] for further analysis, streamlining the validation process and
enhancing the efficiency and accuracy of the test. By filtering the set of packet traces, the filter unit [320] enables precise identification and validation of the target packets, ensuring the reliability of the telecommunication nodes under test.
20 [0085] The system [300] comprises the protocol analyser [322] configured to
analyse the protocol. The protocol analyser [322] operates by examining the packet traces retrieved by the packet collector unit [306] and extracting detailed information about the protocols used in the communication. For example, if the set of packet traces include SIP (Session Initiation Protocol) messages, the protocol
25 analyser [322] will decode these messages to reveal their structure and content, such
as headers, methods, and payload. The analysis allows the system to determine the behaviour and interactions of different network protocols, ensuring that the identified set of packets conform to the expected protocol standards and specifications. By analysing the protocol, the protocol analyser [322] facilitates in
30 accurate validation and troubleshooting of telecommunication nodes.
26

[0086] The system [300] comprises the logger [324]. The logger [324] is
responsible for recording all relevant events and data during the execution of the
generated test case. This includes capturing information such as the initiation and
completion of test cases, the set of packets traces retrieved and analysed, the results
5 of validations, and any anomalies or errors encountered during the process. For
example, if a test case involves verifying the transmission of SIP "REGISTER"
messages, the logger [324] will log each step of the process, from the packet
collection to the final validation results. By maintaining a comprehensive log, the
logger [324] provides a detailed record that can be used for debugging, auditing,
10 and improving the accuracy and efficiency of the telecommunication testing
system.
[0087] Referring to FIG. 4, an exemplary method flow diagram [400] for automated end-to-end testing and validation of telecommunication nodes, in
15 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 FIG. 4, the method [400] starts at step [402].
20
[0088] At step 404, the method [400] as disclosed by the present disclosure comprises generating, by a configuration manager [302], a test case having a predefined criteria for a plurality of nodes of a network, wherein the predefined criteria comprise at least a predefined identification criteria and a predefined
25 validation criteria. For example, the configuration manager [302] may generate a
test case for the plurality of network nodes, such as Node A, Node B, and Node C. The predefined criteria for the test case could include the predefined identification criteria, such as internet protocol (IP) addresses or protocol headers that identify packets exchanged between the plurality of nodes. The generated test case may
30 include defining a set of parameters to conduct testing of the plurality of nodes. In
an exemplary aspect, generating the test case comprises defining global parameters,
27

server details of the plurality of network nodes for retrieving of the set of packet
traces, setting packet identification criteria, and establishing criteria for comparing
attribute values present in packets. For example, in a test case involving the plurality
of nodes such as Node A, Node B, and Node C, the configuration manager [302]
5 generates a test case by first defining the global parameters like the test duration,
network type, and protocol to be used. Next, it details the server details for the plurality of network nodes, such as IP addresses, port numbers, and authentication credentials. The predefined identification criteria could involve parameters like the source and destination IP addresses, a set of protocol headers, or a set of unique
10 identifiers within the packet traces. The predefined criteria for the test case could
include the predefined validation criteria. The predefined validation criteria include verifying fields within the packet, such as sequence numbers, timestamps, or payload data, conform to predefined values or patterns. For example, the test case might specify that a packet from Node A to Node B must contain a specific SIP
15 (Session Initiation Protocol) header, and the payload may include set of instructions
or commands.
[0089] In an exemplary aspect, generating the test case comprises defining global parameters, server details of the plurality of network nodes for retrieving of the set
20 of packet traces, setting packet identification criteria, and establishing criteria for
comparing attribute values present in packets. The global parameters include settings such as the duration of the test, the types of protocols to be tested, and the network topology. For example, if the test involves nodes A, B, and C, the global parameters will specify that the test will run for 24 hours using SIP and RTP
25 protocols. The server details involve specifying the IP addresses, port numbers, and
authentication credentials for each network node. For example, node A might have an IP address of 192.168.1.1, port 5060, and require authentication tokens. Setting packet identification criteria involves defining the characteristics that packets must have to be identified during the test. This could include the source and destination
30 IP addresses, protocol headers, and unique identifiers within the packets. For
example, the criteria might specify that a packet from node A to node B must have
28

a source IP of 192.168.1.1, a destination IP of 192.168.1.2, and include a SIP header
indicating a "REGISTER" message. Establishing criteria for comparing attribute
values present in packets ensures the validation of the identified packets against
expected conditions. This involves comparing values such as sequence numbers,
5 timestamps, and payload content against predefined standards. For example, the
validation criteria might state that a packet from node B to node C should have a sequence number that increments by one and a payload containing a set of instructions or commands.
10 [0090] At step 406, the method [400] as disclosed by the present disclosure
comprises executing, by an execution unit [304], the configured test case for a set of nodes selected from the plurality of nodes. The execution unit [304] operates by first receiving the test case from the configuration manager [302], which includes all the predefined criteria for the test case. Once the test case is received, the
15 execution unit [304] initiates the test by executing the steps outlined in the test case.
For example, in a network having nodes A, B, and C, the execution unit [304] selects these nodes based on the criteria specified in the test case. The execution unit [304] then proceeds to perform the actions required to execute the test. The execution may include configuring the set of nodes according to the test case, such
20 as setting specific network configurations, initiating communication protocols, and
triggering any required pre-test conditions. For example, if the test case specifies that node A should simulate a failure to test redundancy, the execution unit [304] will execute the necessary commands to bring down node A.
25 [0091] During the test execution, the execution unit [304] may interact with the set
of nodes to generate the required network traffic and monitor the interactions as specified in the test case. The interaction may include sending specific types of packets, initiating calls, or performing data transfers between the set of nodes. For example, the execution unit [304] may send SIP "INVITE" messages from node B
30 to node C to test call setup procedures. The execution unit [304] is further
configured to coordinate with other units, such as the packet collector unit [306], to
29

ensure that packet traces are retrieved from the set of nodes during execution of the
test case. Upon completion of the test case, the execution unit [304] performs any
post-execution steps as defined in the test case. The post-execution steps can
include actions such as reconfiguring the set of nodes to their original state,
5 collecting logs, or performing any additional validations. For example, after testing
redundancy by bringing down node A, the execution unit [304] might bring node A back online and verify that normal operations resume correctly.
[0092] At step 408, the method [400] as disclosed by the present disclosure,
10 comprises retrieving, by a packet collector unit [306], a set of packet traces from
the set of nodes based on the executing of the generated test case. The packet collector unit [306] operates by first receiving a trigger from the execution unit [304] once the test case execution begins. The trigger indicates that the packet collection process should start. For example, in a network having nodes A, B, and
15 C, once the execution unit [304] executes the test case, it may send a command to
the packet collector unit [306] to begin capturing the set of packet traces from the set of nodes. The packet collector unit [306] then connects to each of the set of nodes as specified in the test case, using the predefined server details such as IP addresses and port numbers, to start capturing the set of packet traces. The packet
20 collector unit [306] captures the set of packet traces that occur during the test case
execution period. For example, if the test case involves sending SIP "INVITE" messages from node B to node C, the packet collector unit [306] captures all the set of packet traces related to the communication, including any responses or additional messages that are part of the test case. As the set of packet traces are collected, the
25 packet collector unit [306] stores them temporarily for further analysis. This
involves organizing the set of packet traces data according to the set of nodes from which they were captured such that all relevant information, such as timestamps, source and destination addresses, and protocol-specific data, is accurately recorded.
30 [0093] Upon completion of the test case, the execution unit [304] sends a signal to
the packet collector unit [306] to stop the capture of the set of packet traces. The
30

packet collector unit [306] then retrieves the complete set of packet traces from the set of nodes and stores them in the storage unit [314] for analysis. For example, if the test case aimed to validate the redundancy mechanism by bringing node A down and observing the behaviour of nodes B and C, the packet collector unit [306] would have captured all relevant packet data before, during, and after node A's downtime.
[0094] At step 410, the method [400] as disclosed by the present disclosure comprises identifying, by a packet identifier unit [308], a set of target packets from the retrieved set of packet traces based on the predefined identification criteria. The packet identifier unit [308] operates by analysing the set of packet traces collected by the packet collector unit [306] and applying the predefined identification criteria defined in the test case to identify the set of target packets of interest. For example, in a case where the test case involves verifying a SIP registration process between nodes A and B, the predefined identification criteria might specify that the set of target packets include SIP "REGISTER" messages originating from node A and destined for node B. The packet identifier unit [308] would then scan through the set of packet traces to identify the set of target packets matching this description. The identification criteria can include various parameters such as source and destination IP addresses, protocol types, specific header fields, and unique identifiers within the packets. For example, if the identification criteria specify that the set of target packets must have a source IP address of 192.168.1.1, a destination IP address of 192.168.1.2, and contain a SIP header with a "REGISTER" method, the packet identifier unit [308] will identify the set of target packets that meet all these conditions.
[0095] At step 412, the method [400] as disclosed by the present disclosure comprises determining, by the packet attribute validation unit [310], a test result based on a validation of a set of attributes associated with the identified set of target packets against the predefined validation criteria. The packet attribute validation unit [310] operates by receiving the set of target packets identified by the packet identifier unit [308] and then analysing these packets according to the criteria

specified in the test case. For example, the test case involves verifying the correct transmission of SIP "REGISTER" messages, the predefined validation criteria might include checking the "To" and "From" headers, the "Call-ID," and the presence of a specific value in the "CSeq" header. The packet attribute validation unit [310] will then extract the set of attributes from the identified SIP "REGISTER" messages and compare them against the predefined validation criteria (such as predefined values) defined in the test case. The validation process involves detailed comparison of each of the set of attributes within the set of target packets. For example, if the predefined validation criteria state that the "Call-ID" in the SIP "REGISTER" message must match a specific format or value, the packet attribute validation unit [310] will validate whether this condition is met. Similarly, it will check if the "CSeq" header contains the correct sequence number and if the "To" and "From" headers have the correct URI values. Once the packet attribute validation unit [310] completes the validation of all the set of attributes, it determines the test result based on whether the set of attributes of the target packets match the predefined criteria. If all attributes are validated successfully, the test case is marked as passed. If any attribute does not meet the criteria, the test case is marked as failed. For example, if the "Call-ID" does not match the expected value or if the "CSeq" header contains an incorrect sequence number, the test result will indicate a failure.
[0096] Thereafter, the method [400] terminates at step [414].
[0097] The present disclosure further discloses a non-transitory computer readable storage medium storing instructions for automated end-to-end testing and validation of telecommunication nodes, the instructions include executable code which, when executed by one or more units of a system, causes: a configuration manager [302] configured to generate a test case having a predefined criteria for a plurality of nodes of a network, the predefined criteria comprises at least a predefined identification criteria and a predefined validation criteria; an execution unit [304] configured to execute the configured test case for a set of nodes selected from the

plurality of nodes; a packet collector unit [306] configured to retrieve a set of packet traces from the set of nodes based on the execution of the generated test case; a packet identifier unit [308] configured to identify a set of target packets from the retrieved set of packet traces based on the predefined identification criteria; and a packet attribute validation unit [310] configured to determine a test result based on a validation of a set of attributes associated with the identified set of target packets against the predefined validation criteria.
[0098] As is evident from the above, the present disclosure provides a technically advanced solution for automated end-to-end testing and validation of telecommunication nodes. The present solution provides a method and system for automated end-to-end testing and validation system for telecommunication nodes that facilitates comprehensive validation of information flow. The invention aims to validate not just a few mandatory and important Information Elements (IEs), but all the elements required for a more robust validation. Furthermore, the present solution provides method and system that seeks to give test users more control over the testing process. It aims to allow users to add or remove the verification of Information Elements (IEs) according to their specific requirements. Also, the present solution provides method and system that enables for validation of different layers of the Open Systems Interconnection (OSI) model, along with the application layer, for a more complete understanding of the network's functioning. Further, the present solution provides the method and system that enables users the flexibility to perform pre-execution steps before the actual start of test cases, for improved test planning and preparation. Further, the present solution provides the method and system that seeks to validate current Information Elements (IEs) based on the value of Information Elements (IEs) present in different packets and/or across different nodes for a more robust and extensive testing procedure. Further, the present solution provides the method and system that offer support for the validation of Key Performance Indicators (KPIs) or counters, crucial elements of post-test evaluation. Further, the present solution provides the method and system that aims to quickly and efficiently adapt to the introduction of new communication network protocols

or new information flows defined by the 3rd Generation Partnership Project (3GPP) specifications.
[0099] Further, in accordance with the present disclosure, it is to be acknowledged that the functionality described for the various the components/units can be 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 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.
[0100] While considerable emphasis has been placed herein on the disclosed 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 and non-limiting.

We Claim:
1. A system for automated end-to-end testing and validation of
telecommunication nodes, the system comprising:
a configuration manager [302] configured to generate a test case having a predefined criteria for a plurality of nodes of a network, the predefined criteria comprise at least a predefined identification criteria and a predefined validation criteria;
an execution unit [304] configured to execute the generated test case for a set of nodes selected from the plurality of nodes;
a packet collector unit [306] configured to retrieve a set of packet traces from the set of nodes based on the execution of the generated test case;
a packet identifier unit [308] configured to identify a set of target packets from the retrieved set of packet traces based on the predefined identification criteria; and
a packet attribute validation unit [310] configured to determine a test result based on a validation of a set of attributes associated with the identified set of target packets against the predefined validation criteria.
2. The system as claimed in claim 1, wherein generating the test case comprises defining global parameters, server details of the plurality of nodes of the network for retrieving of the set of packet traces, setting packet identification criteria, and establishing criteria for comparing attribute values present in packets.
3. The system as claimed in claim 1, wherein the system comprises a test case scheduler [312] configured to schedule the generated test case after a predefined time period.

4. The system as claimed in claim 1, wherein the system comprises a storage unit [314] to store the retrieved set of packet traces.
5. The system as claimed in claim 1, wherein the system comprises a report generator unit [316] configured to generate a report based on the determined test result.
6. The system as claimed in claim 1, wherein the system comprises a test emulator [318] to emulate the generated test case on the set of nodes.
7. The system as claimed in claim 1, wherein the system comprises a filter unit [320] configured to filter the set of packet traces to determine the set of target packets.
8. A method for automated end-to-end testing and validation of telecommunication nodes, the method comprising:
generating, by a configuration manager [302], a test case having a predefined criteria for a plurality of nodes of a network, wherein the predefined criteria comprise at least a predefined identification criteria and a predefined validation criteria;
executing, by an execution unit [304], the generated test case for a set of nodes selected from the plurality of nodes;
based on the executing of the generated test case, retrieving, by a packet collector unit [306], a set of packet traces from the set of nodes;
identifying, by a packet identifier unit [308], a set of target packets from the retrieved set of packet traces based on the predefined identification criteria; and
determining, by a packet attribute validation unit [310], a test result based on a validation of a set of attributes associated with the identified set of target packets against the predefined validation criteria.

9. The method as claimed in claim 8, wherein the generating comprises defining global parameters, server details of the plurality of nodes of the network for retrieving of the set of packet traces, setting packet identification criteria, and establishing criteria for comparing attribute values present in packets.
10. The method as claimed in claim 8, wherein the method comprises storing the retrieved set of packet traces on a storage unit [314].
11. The method as claimed in claim 8, wherein the method comprises scheduling, by a test case scheduler [312], the generated test case after a predefined time period.
12. The method as claimed in claim 8, wherein the method comprises generating, by a report generator unit [316], a report based on the determined test result.
13. The method as claimed in claim 8, wherein the method comprises emulating, by a test emulator [318], the generated test case on the set of nodes.
14. The method as claimed in claim 8, wherein the method comprises filtering, by a filter unit [320], the set of packet traces to determine the set of target packets.