FORM 2
THE PATENTS ACT, 1970 (39 of 1970) THE PATENTS RULES, 2003
COMPLETE SPECIFICATION
APPLICANT
of Office-10, Saffron, Nr .JIO PLATFORMS LIMITED,, Ambawad, hmedabad -
380006, Gujarat, India; Nationality : India
The following specification particularly describes
the invention and the manner in which
it is to be performed

RESERVATION OF RIGHTS
[0001] A portion of the disclosure of this patent document contains material,
which is subject to intellectual property rights such as but are not limited to, copyright, design, trademark, integrated circuit (IC) layout design, and/or trade dress protection, belonging to Jio Platforms Limited (JPL) or its affiliates (hereinafter referred as owner). The owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure, as it appears in the Patent and Trademark Office patent files or records, but otherwise reserves all rights whatsoever. All rights to such intellectual property are fully reserved by the owner.
FIELD OF INVENTION
[0002] The embodiments of the present disclosure generally relate to
troubleshooting using error logs in a communications network. More particularly, the present disclosure relates to the system and method for troubleshooting using error logs in a network.
DEFINITION
[0003] As used in the present disclosure, the following terms are generally
intended to have the meaning as set forth below, except to the extent that the context
in which they are used to indicate otherwise.
[0004] Logging is the process of collecting and storing data over a period of
time in different systems or environments. The logging involves tracking a variety
of events.
[0005] An international mobile subscriber identity (IMSI) is a number that
uniquely identifies every user equipment of a cellular network.
[0006] A session ID is a unique identification number that is generated by a
server.
[0007] An error code (or a return code) is a numeric or alphanumeric code
that indicates the nature of an error and, when possible, why it occurred.
[0008] A destination host enables a network connection to a remote host

system using a defined host name.
[0009] An attribute-value pair (AVP) refers to a fundamental representation
in computing systems to express entities by describing their characteristics. The AV P consists of two elements: an attribute and a value.
BACKGROUND OF THE INVENTION
[0010] 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.
[0011] Logging is an essential process for capturing and storing detailed
information about the session occurring in an application. The logging facilitates
troubleshooting issues, monitoring performance, security and auditing compliance.
The logs give records indicating information about activity and events associated
with the application. The logs contain information about the functioning of the
system, and accordingly, the cause can be identified for the error occurred in the
application. The logs also facilitate compliance with regulation requirements.
[0012] The logs are the "black box" of the application. They contain
information about how your system works, so you can figure out what's wrong and fix it. The log levels can be classified into a plurality of categories such as fatal, error, warn, info, debug, trace, all, off, etc. In the production environment, most of the network nodes are running in an error mode. The error mode does not indicate that applications are running abnormally. In fact, the error mode indicates a failure of an important element to notice in the applications. In the error mode, write operations per second is low as compared to trace, debug, info and warn mode logging level. Therefore, the error mode is preferred for the system performance as compared to info mode.
[0013] However, in the error mode, the operator is not able to identify
signalling errors and corresponding information elements (IE) and diameter

interface parameters such as attribute value pair (AVPs) - that are prerequisites for troubleshooting the issues. Some external probes or tools are available to check and identify the issues. But, at the application level, no feature or functionality is available to collect the required information. There is, therefore, a need in the art to provide a system and a method that can mitigate the problems associated with the prior arts.
SUMMARY
[0014] In an exemplary embodiment, a method for troubleshooting of a
network by capturing a plurality of logs in an error mode is described. The method
comprises creating a dynamic logger for capturing error details associated with an
application. The method comprises on detecting an error in one of a plurality of
conditions, enabling a runtime configurable flag corresponding to the one of the
plurality of conditions using the dynamic logger. The method further comprises
capturing the error details in a log corresponding to the one of plurality of conditions
and disabling the runtime configurable flag after capturing the error details in the
log.
[0015] In some embodiments, the captured error details in the log are stored
in one of a plurality of log files. The captured error details are used for error
debugging.
[0016] In some embodiments, the details include an international mobile
subscriber identity (IMSI), a session identity (ID), error codes, a destination host,
an origin host, and an attribute-value pair (AVP).
[0017] In some embodiments, the plurality of conditions includes an abort
session request (ASR) - an abort session answer (ASA) messaging, a Re-auth
request (RAR) - a Re-auth answer (RAA) messaging, a session termination request
(STR) - a session termination answer (STA) messaging, charging rule reporting,
creating a dummy a subscriber profile repository (SPR) profile, receiving an
emergency request.
[0018] In some embodiments, a plurality of runtime configurable flags are
used in error mode which includes an ASA error log enable flag, a RAA error log

enable flag, a STR error log enable flag, a charging rule report log enable flag, a
SPR failure debug flag and an emergency debug flag.
[0019] In some embodiments, the plurality of log files is created based on
file size and time duration. The method further comprises managing count of the
plurality of log files.
[0020] In some embodiments, a plurality of old logs is overwritten based on
the plurality of runtime configurable flags.
[0021] In another exemplary embodiment, a system for troubleshooting of
a network by capturing a plurality of logs is described. The system comprises a
creation unit configured to create a dynamic logger for capturing error details
associated with an application. On detecting an error in one of a plurality of
conditions, a processing unit is configured to enable a runtime configurable flag
corresponding to the one of the plurality of conditions using the dynamic logger. A
capturing unit is configured to capture the error details in a log corresponding to the
one of plurality of conditions. The processing unit is configured to disable the
runtime configurable flag after capturing the error details in the log.
[0022] In some embodiments, the captured error details in the log are stored
in one of a plurality of log files. The captured error details are used for error
debugging.
[0023] In some embodiments, the details include an international mobile
subscriber identity (IMSI), a session identity (ID), error code, destination host,
origin host and an attribute-value pair (AVP).
[0024] In some embodiments, the plurality of conditions includes an abort
session request (ASR) - an abort session answer (ASA) messaging, a Re-auth
request (RAR) - a Re-auth answer (RAA) messaging, a session termination request
(STR) - a session termination answer (STA) messaging, charging rule reporting,
creating a dummy a subscriber profile repository (SPR) profile, receiving an
emergency request.
[0025] In some embodiments, a plurality of runtime configurable flags
includes an ASA error log enable flag, a RAA error log enable flag, a STR error log

enable flag, a charging rule report log enable flag, a SPR failure debug flag and an emergency debug flag.
[0026] In some embodiments, the plurality of log files is created based on
file size and time duration. The processing unit is configured to manage count of the plurality of log files.
[0027] In some embodiments, a plurality of old logs is overwritten based on
the plurality of configurable flags.
[0028] In some embodiments, a user equipment is communicatively
coupled with a system. The coupling comprises steps of receiving, by the system, a
connection request and sending, by the system, an acknowledgment of the
connection request to the UE. The coupling further comprises transmitting a
plurality of signals in response to the connection request. The system is configured
for troubleshooting of a network by capturing a plurality of logs in an error mode.
[0029] The foregoing general description of the illustrative embodiments
and the following detailed description thereof are merely exemplary aspects of the teachings of this disclosure, and are not restrictive.
OBJECTS OF THE INVENTION
[0030] Some of the objects of the present disclosure, which at least one
embodiment herein satisfies are as listed herein below.
[0031] An object of the present disclosure is to provide system and method
for troubleshooting using error logs in a network.
[0032] Another object of the present disclosure is to enable logging in an
error mode to capture details for error scenarios.
[0033] Another object of the present disclosure is to add multiple logs for
multiple conditions in the error mode.
[0034] Another object of the present disclosure is to enable or disable
logging in the error mode using runtime configurable flags.
[0035] Another object of the present disclosure is to allow the users to
collect the logs as per requirement.
[0036] Another object of the present disclosure is to create a log file to

capture specific details.
[0037] Another object of the present disclosure is to capture different call
flow details in loggers.
[0038] Another object of the present disclosure is to reduce the need for
resources during running traffic.
BRIEF DESCRIPTION OF DRAWINGS
[0039] The accompanying drawings, which are incorporated herein, and
constitute a part of this disclosure, illustrate exemplary embodiments of the
disclosed methods and systems 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. Some drawings may indicate the components
using block diagrams and may not represent the internal circuitry of each
component. It will be appreciated by those skilled in the art that disclosure of such
drawings includes the disclosure of electrical components, electronic components,
or circuitry commonly used to implement such components.
[0040] FIG. 1 illustrates an exemplary network architecture for
implementing a system, in accordance with an embodiment of the present
disclosure.
[0041] FIG. 2 illustrates an exemplary block diagram of the system, in
accordance with an embodiment of the present disclosure.
[0042] FIG. 3 illustrates an exemplary representation of connection diagram
of policy control function (PCF) or policy and charging rules function (PCRF) with
other network elements through a corresponding interface, in accordance with some
embodiments of the present disclosure.
[0043] FIG. 4 illustrates an exemplary representation of a flow diagram for
troubleshooting a network by capturing a plurality of logs in an error mode, in
accordance with some embodiments of the present disclosure.
[0044] FIG. 5 illustrates an exemplary computer system in which or with
which the embodiments of the present disclosure may be implemented.

[0045] The foregoing shall be more apparent from the following more
detailed description of the disclosure.
DETAILED DESCRIPTION
[0046] In the following description, for explanation, various specific details
are outlined 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 can each be used independently of one another or with any combination of other features. An individual feature may not address all of the problems discussed above or might address only some of the problems discussed above. Some of the problems discussed above might not be fully addressed by any of the features described herein.
[0047] 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.
[0048] 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, networks, processes, and other components may be shown as components in block diagram form in order not to obscure the embodiments in unnecessary detail. In other instances, well-known circuits, processes, algorithms, structures, and techniques may be shown without unnecessary detail to avoid obscuring the embodiments.
[0049] Also, it is noted that individual embodiments may be described as a
process that 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 can 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. A process may correspond to a method, a function, a
5 procedure, a subroutine, a subprogram, etc. When a process corresponds to a
function, its termination can correspond to a return of the function to the calling function or the main function.
[0050] The word “exemplary” and/or “demonstrative” is used herein to
mean serving as an example, instance, or illustration. For the avoidance of doubt,
10 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
15 “includes,” “has,” “contains,” and other similar words are used in either the detailed
description or the claims, such terms are intended to be inclusive like the term
“comprising” as an open transition word without precluding any additional or other
elements.
[0051] Reference throughout this specification to “one embodiment” or “an
20 embodiment” or “an instance” or “one instance” means that a particular feature,
structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present disclosure. Thus, the appearances of the phrases “in one embodiment” or “in an embodiment” in various places throughout this specification are not necessarily all referring to the same embodiment.
25 Furthermore, the particular features, structures, or characteristics may be combined
in any suitable manner in one or more embodiments.
[0052] The terminology used herein is to describe particular embodiments
only and is not intended to be limiting the disclosure. As used herein, the singular forms “a”, “an”, and “the” are intended to include the plural forms as well, unless
30 the context indicates otherwise. It will be further understood that the terms
“comprises” and/or “comprising,” when used in this specification, specify the
9

presence of stated features, integers, steps, operations, elements, and/or
components, but do not preclude the presence or addition of one or more other
features, integers, steps, operations, elements, components, and/or groups thereof.
As used herein, the term “and/or” includes any combinations of one or more of the
5 associated listed items.
[0053] Embodiments herein relate to systems and methods for
troubleshooting using error logs in a network. The present disclosure is directed towards enhancement in functioning of policy control function (PCF) or policy and charging rules function (PCRF). In particular, the functioning of PCF or PCRF is
10 enhanced by adding logs in an error mode to capture one or more specific details
such as but not limited to, international mobile subscriber identity (IMSI), session ID, error code, destination host, and origin host in case of error occurred for debugging. The logs are added using a set of runtime configurable flags, which can be enabled/disabled for logging. Some of the flags are as follows:
15 • asaErrorLogEnable flag - captures the logs on specific Rx diameter
interface’s abort session request (ASR) – abort session answer (ASA) message.
• raaErrorLogEnable flag - captures the logs on specific Gx diameter
interface’s Re-Auth-Request (RAR) – Re-Auth-Answer (RAA) message.
20 • strErrorLogEnable flag - captures the logs on specific Rx diameter
interface’s session termination request (STR) – session termination answer (STA) message.
• chargingRuleReportLogEnable flag - captures the logs on specific Gx
diameter interface’s RAR-RAA and credit control request (CCR) – credit
25 control answer (CCA) message.
• sprDipFailureDebugFlag - captures international mobile subscriber identity
(IMSI) and access point network (APN) details for subscribers for which
dummy subscriber profile repository (SPR) profile is created.
• emergencyDebugFlag - captures IMSI and service gateway GPRS support
30 node (SGSN) mobile country code (MCC), mobile network code (MNC)
details for subscribers for which emergency request is received.
10

[0054] In an embodiment, the configurable flags can be configured during
run time. The one or more flags can be enabled at the PCRF or PCF based on the
received error message. Each of the configurable flags is associated with different
call flow details. When an error message is received, a particular configurable flag
5 required for the received error message is enabled and the corresponding call flow
details are captured for error debugging.
[0055] In an exemplary embodiment, capturing different call flow details
using the configurable flags allows creation of a separate log file to capture specific details (e.g., diameter interface messages and hypertext transfer protocol -2
10 (HTTP2) interface service operations). When an error message is received, a
corresponding configurable flag is enabled to capture selected information element (IE) and AVP details in the log. Therefore, one log file is created for all logs, thereby enabling identification of the captured details easily. The details corresponding to the selected IE and AVP details is captured through enabling one or more flags. This
15 reduces number of input and output operations as compared to the other log level.
Moreover, the system runs in error mode so as to save the processing resources during running traffic and to collect the logs as per requirement.
[0056] In an embodiment, a dynamic logger is created for capturing specific
information. The logger can be configured using the command line interface with
20 the application. Using configurable flags, specific information can be logged so that
it can be easily determined what activity or event are performed within the signalling messages.
[0057] In an embodiment, different log files can be created based on file
size and time duration. Additionally, or alternatively, file count can also be
25 manageable and old files may be overwritten based on configurable values.
[0058] The various embodiments throughout the disclosure will be
explained in more detail with reference to FIGs. 1-5.
[0059] FIG. 1 illustrates an exemplary network architecture 100 for
implementing a system 108 for troubleshooting a network (106), in accordance with
30 an embodiment of the present disclosure.
[0060] As illustrated in FIG. 1, one or more computing devices 104-1, 104-
11

2…104-N may be connected to the system 108 through the network 106. A person
of ordinary skill in the art will understand that the one or more computing devices
104-1, 104-2…104-N may be collectively referred as computing devices 104 and
individually referred as a computing device 104. One or more users 102-1, 102-
5 2…102-N may provide one or more requests to the system 108. A person of
ordinary skill in the art will understand that the one or more users 102-1, 102-
2…102-N may be collectively referred as users 102 and individually referred as a
user 102. Further, the computing devices 104 may also be referred as a user
equipment (UE) 104 or as UEs 104 throughout the disclosure.
10 [0061] In an embodiment, the computing device 104 may include, but not
be limited to, a mobile, a laptop, etc. Further, the computing device 104 may include one or more in-built or externally coupled accessories including, but not limited to, a visual aid device such as a camera, audio aid, microphone, or keyboard. Furthermore, the computing device 104 may include a mobile phone, smartphone,
15 virtual reality (VR) devices, augmented reality (AR) devices, a laptop, a general-
purpose computer, a desktop, a personal digital assistant, a tablet computer, and a mainframe computer. Additionally, input devices for receiving input from the user 102 such as a touchpad, touch-enabled screen, electronic pen, and the like may be used.
20 [0062] In an embodiment, the network 106 may include, by way of example
but not limitation, at least a portion of one or more networks having one or more nodes that transmit, receive, forward, generate, buffer, store, route, switch, process, or a combination thereof, etc. one or more messages, packets, signals, waves, voltage or current levels, some combination thereof, or so forth. The network 106
25 may also include, by way of example but not limitation, one or more of a wireless
network, a wired network, an internet, an intranet, a public network, a private network, a packet-switched network, a circuit-switched network, an ad hoc network, an infrastructure network, a Public-Switched Telephone Network (PSTN), a cable network, a cellular network, a satellite network, a fiber optic network, or
30 some combination thereof.
[0063] In an embodiment, the user equipment 104 is communicatively
12

coupled with the system 108. The system 108 may receive a connection request
from the UE 104. The system 108 may send an acknowledgment of the connection
request to the UE 104. The UE 104 may transmit a plurality of signals in response
to the connection request. The system 108 may be configured for troubleshooting
5 of the network 106 by capturing a plurality of error logs in an error mode.
[0064] FIG. 2 illustrates an example block diagram 200 of the system 108,
in accordance with an embodiment of the present disclosure.
[0065] Referring to FIG. 2, in an embodiment, the system 108 may include
one or more processor(s) 202. The one or more processor(s) 202 may be
10 implemented as one or more microprocessors, microcomputers, microcontrollers,
digital signal processors, central processing units, logic circuitries, and/or any devices that process data based on operational instructions. Among other capabilities, the one or more processor(s) 202 may be configured to fetch and execute computer-readable instructions stored in a memory 204 of the system 108.
15 The memory 204 may be configured to store one or more computer-readable
instructions or routines in a non-transitory computer readable storage medium, which may be fetched and executed to create or share data packets over a network service. The memory 204 may comprise any non-transitory storage device including, for example, volatile memory such as random-access memory (RAM),
20 or non-volatile memory such as erasable programmable read only memory
(EPROM), flash memory, and the like.
[0066] In an embodiment, the system 108 may include an interface(s) 206.
The interface(s) 206 may comprise a variety of interfaces, for example, interfaces for data input and output devices (I/O), storage devices, and the like. The
25 interface(s) 206 may facilitate communication through the system 108. The
interface(s) 206 may also provide a communication pathway for one or more components of the system 108. Examples of such components include, but are not limited to, processing engine(s) 208 and a database 210. Further, the processing engine(s) 208 may include one or more engine(s) such as, but not limited to, an
30 input/output engine, an identification engine and an optimization engine.
[0067] In an embodiment, the processing engine(s) 208 may be
13

implemented as a combination of hardware and programming (for example,
programmable instructions) to implement one or more functionalities of the
processing engine(s) 208. In examples described herein, such combinations of
hardware and programming may be implemented in several different ways. For
5 example, the programming for the processing engine(s) 208 may be processor-
executable instructions stored on a non-transitory machine-readable storage medium and the hardware for the processing engine(s) 208 may comprise a processing resource (for example, one or more processors), to execute such instructions. In the present examples, the machine-readable storage medium may
10 store instructions that, when executed by the processing resource, implement the
processing engine(s) 208. In such examples, the system may comprise the machine-readable storage medium storing the instructions and the processing resource to execute the instructions, or the machine-readable storage medium may be separate but accessible to the system and the processing resource. In other examples, the
15 processing engine(s) 208 may be implemented by electronic circuitry.
[0068] In an embodiment, the database 210 includes data that may be either
stored or generated as a result of functionalities implemented by any of the components of the processor 202 or the processing engines 208. In an embodiment, the database 210 may be separate from the system 108. In an embodiment, the
20 database 210 may be indicative of including, but not limited to, a relational
database, a distributed database, a cloud-based database, or the like.
[0069] In an embodiment, the processing engine(s) 208 is directed towards
enhancement in the functioning of policy control function (PCF) or policy and charging rules function (PCRF). In particular, the functioning of PCF or PCRF is
25 enhanced by adding logs in error mode to capture one or more details such as but
not limited to international mobile subscriber identity (IMSI), session ID, error code, destination host, and origin host in case of error occurred for debugging. The logs are added through a set of runtime configurable flags, which can be enabled/disabled logging. Some of the flags are as follows:
30 • An adaptive security appliance (ASA) error log enable flag (e.g.,
asaErrorLogEnable) - capture the logs on specific Rx diameter interface’s
14

ASR-ASA message.
• A re-authentication answer (RAA) error log enable flag (e.g.,
raaErrorLogEnable) - capture the logs on specific Gx diameter interface’s
RAR-RAA message.
5 • A session termination request (STR) error log enable flag (e.g.,
strErrorLogEnable) - capture the logs on specific Rx diameter interface’s STR-STA message.
• A charging rule report log enable flag (e.g., chargingRuleReportLogEnable)
- capture the logs on specific Gx diameter interface’s RAR-RAA and CCR-
10 CCA message.
• A subscriber profile repository (SPR) failure debug flag (e.g.,
sprDipFailureDebugFlag) - capture IMSI and APN details for subscribers
for which dummy SPR profile is created.
• An emergency debug flag (e.g., emergencyDebugFlag) - capture IMSI and
15 service gateway GPRS support node (SGSN) mobile country code (MCC),
mobile network code (MNC) details for subscribers for which emergency
request is received.
[0070] In an embodiment, the configurable flags can be configured during
run time. The one or more flags can be enabled at the PCRF or PCF based on the
20 received error message. Each of the added configurable flags is associated with
different call flow details. When an error message is received, a particular configurable flag required for the received error message is enabled and the corresponding call flow details are captured for debugging. In an exemplary embodiment, capturing different call flow details using the configurable flags allow
25 the creation of a separate log file to capture details such as specific diameter
interface messages and HTTP2 interface service operations. The configurable flag is enabled to capture selected information element (IE) and diameter interface parameters (e.g., attribute-value pair (AVP) details) when an error message is received. Therefore, one log file is created for all logs, thereby enabling
30 identification of the captured details easily. As capturing details corresponding to
the selected IE and AVP details through enabling one or more flags, the number of
15

input and output operations are reduced as compared to the other log level.
Moreover, the system runs in the error mode only so as to save the processing
resources during running traffic and to collect the logs as per requirement.
[0071] In an embodiment, the processing engine(s) 208 may include one or
5 more units such as a creation unit 212, a processing unit 214 and a capturing unit
216. The processing engine(s) 208 is configured for troubleshooting of the network 106 by capturing a plurality of logs in an error mode.
[0072] The creation unit 212 is configured to create a dynamic logger for
capturing error details associated with an application. In an aspect, the dynamic
10 logger is created for the application using a command line interface (CLI).
[0073] On detecting an error in one of the plurality of conditions, the
processing unit 214 is configured to enable a runtime configurable flag
corresponding to the one of the plurality of conditions using the dynamic logger.
[0074] The capturing unit 216 is configured to capture the error details in a
15 log corresponding to the one of plurality of conditions. The processing unit 214 is
configured to disable the runtime configurable flag after capturing the error details in the log. The captured error details in the log are stored in one of a plurality of log files. The captured error details are used for error debugging. The details include an international mobile subscriber identity (IMSI), a session identity (ID), error code,
20 destination host, origin host and an attribute-value pair (AVP). Each of plurality of
added logs is associated with distinct call flow.
[0075] The processing unit 214 is configured to enable or disable the
plurality of runtime configurable flags for logging based on a plurality of conditions. The plurality of conditions includes an abort session request (ASR) - an
25 abort session answer (ASA) messaging, a Re-auth request (RAR) - a Re-auth
answer (RAA) messaging, a session termination request (STR) - a session termination answer (STA) messaging, charging rule reporting, creating a dummy a subscriber profile repository (SPR) profile, receiving an emergency request. The plurality of runtime configurable flags includes an ASA error log enable flag, a
30 RAA error log enable flag, a STR error log enable flag, a charging rule report log
enable flag, a SPR failure debug flag and an emergency debug flag.
16

[0076] The processing unit 214 is configured to manage count of the
plurality of log files. The plurality of log files is created based on file size and time
duration. A plurality of old logs is overwritten based on the runtime configurable
flags.
5 [0077] Although FIG. 2 shows exemplary components of the system 108,
in other embodiments, the system 108 may include fewer components, different components, differently arranged components, or additional functional components than depicted in FIG. 2. Additionally, or alternatively, one or more components of the system 108 may perform functions described as being performed by one or more
10 other components of the system 108.
[0078] FIG. 3 illustrates an exemplary representation of connection diagram
300 of PCF or PCRF with other network elements connected through a corresponding interface, in accordance with some embodiments of the present disclosure.
15 [0079] As shown in FIG. 3, a PCF and the PCRF 302 may communicate
with a plurality of network functions through a plurality of interfaces. The plurality of network functions includes a deep packet inspection (DPI) 308, a session management function (SMF) 310, a charging function (CHF) 312, a binding support function (BSF) 314, a network repository function (NRF) 316, an access
20 management function (AMF) 304, an application function (AF) 306, an online
charging system (OCS) 318, a packet data network (PDN) gateway (PGW) 320, a
network management system (NMS) 322, and a subscription profile repository
(SPR) 324.
[0080] The AMF 304 may communicate with the PCF and the PCRF 302
25 via a N15 interface. The DPI 308 may communicate with the PCF and the PCRF
302 via a Sd interface. The SMF 310 may communicate with the PCF and the PCRF 302 via a N7 interface. The CHF 312 may communicate with the PCF and the PCRF 302 via a N28 interface. The BSF 314 may communicate with the PCF and the PCRF 302 via a Nbsf interface. The NRF 316 may communicate with the PCF and
30 the PCRF 302 via a Nnrf interface. The AF 306 may communicate with the PCF
and the PCRF 302 via a Rx interface. The PGW 320 may communicate with the
17

PCF and the PCRF 302 via a Gx interface. The OCS 318 may communicate with the PCF and the PCRF 302 via a Sy interface.
[0081] FIG. 4 illustrates an exemplary representation of flow diagram of a
method 400 for troubleshooting of the network 106 by capturing a plurality of logs
5 in an error mode, in accordance with some embodiments of the present disclosure.
[0082] At step 402, the method 400 includes creating a dynamic logger for
capturing error details associated with an application. In an aspect, the dynamic
logger is created for the application using a command line interface (CLI).
[0083] At step 404, the method 400 includes, on detecting an error in one of
10 a plurality of conditions, enabling a runtime configurable flag corresponding to the
one of the plurality of conditions using the dynamic logger.
[0084] At step 406, the method 400 includes capturing the error details in a
log corresponding to the one of plurality of conditions.
[0085] At step 408, the method 400 includes disabling the runtime
15 configurable flag after capturing the error details in the log.
[0086] The error details include an international mobile subscriber identity
(IMSI), a session identity (ID), error codes, a destination host, an origin host and an attribute-value pair (AVP). The plurality of logs files is created based on file size and time duration. Count of the plurality of logs is managed.
20 [0087] In an embodiment, the captured error details in the log are stored in
one of a plurality of log files. The captured error details are used for error debugging.
[0088] The plurality of runtime configurable flags is enabled or disabled for
logging based on a plurality of conditions. The plurality of conditions includes an
25 abort session request (ASR) - an abort session answer (ASA) messaging, a Re-auth
request (RAR) - a Re-auth answer (RAA) messaging, a session termination request (STR) - a session termination answer (STA) messaging, charging rule reporting, creating a dummy a subscriber profile repository (SPR) profile, receiving an emergency request. The plurality of runtime configurable flags includes an adaptive
30 security appliance (ASA) error log enable flag, a re-authentication answer (RAA)
error log enable flag, a session termination request (STR) error log enable flag, a
18

charging rule report log enable flag, a subscriber profile repository (SPR) failure debug flag and an emergency debug flag. A plurality of old logs is overwritten based on the plurality of runtime configurable flags.
[0089] FIG. 5 illustrates an example computer system 500 in which or with
5 which the embodiments of the present disclosure may be implemented.
[0090] As shown in FIG. 5, the computer system 500 may include an
external storage device 510, a bus 520, a main memory 530, a read-only memory 540, a mass storage device 550, a communication port(s) 560, and a processor 570. A person skilled in the art will appreciate that the computer system 500 may include
10 more than one processor and communication ports. The processor 570 may include
various modules associated with embodiments of the present disclosure. The communication port(s) 560 may be any of an RS-232 port for use with a modem-based dialup connection, a 10/100 Ethernet port, a Gigabit or 10 Gigabit port using copper or fiber, a serial port, a parallel port, or other existing or future ports. The
15 communication ports(s) 560 may be chosen depending on a network, such as a
Local Area Network (LAN), Wide Area Network (WAN), or any network to which the computer system 500 connects.
[0091] In an embodiment, the main memory 530 may be Random Access
Memory (RAM), or any other dynamic storage device commonly known in the art.
20 The read-only memory 540 may be any static storage device(s) e.g., but not limited
to, a Programmable Read Only Memory (PROM) chip for storing static information e.g., start-up or basic input/output system (BIOS) instructions for the processor 570. The mass storage device 550 may be any current or future mass storage solution, which can be used to store information and/or instructions. Exemplary mass storage
25 solutions include, but are not limited to, Parallel Advanced Technology Attachment
(PATA) or Serial Advanced Technology Attachment (SATA) hard disk drives or
solid-state drives (internal or external, e.g., having Universal Serial Bus (USB)
and/or Firewire interfaces).
[0092] In an embodiment, the bus 520 may communicatively couple the
30 processor(s) 570 with the other memory, storage, and communication blocks. The
bus 520 may be, e.g. a Peripheral Component Interconnect PCI) / PCI Extended
19

(PCI-X) bus, Small Computer System Interface (SCSI), Universal Serial Bus (USB), or the like, for connecting expansion cards, drives, and other subsystems as well as other buses, such a front side bus (FSB), which connects the processor 570 to the computer system 500.
[0093] In another embodiment, operator and administrative interfaces, e.g.,
a display, keyboard, and cursor control device may also be coupled to the bus 520 to support direct operator interaction with the computer system 500. Other operator and administrative interfaces can be provided through network connections connected through the communication port(s) 560. Components described above are meant only to exemplify various possibilities. In no way should the aforementioned exemplary computer system 500 limit the scope of the present disclosure.
[0094] While considerable emphasis has been placed herein on the preferred
embodiments, it will be appreciated that many embodiments can be made and that many changes can be made in the preferred embodiments without departing from the principles of the disclosure. These and other changes in the preferred embodiments of the disclosure will be apparent to those skilled in the art from the disclosure herein, whereby it is to be distinctly understood that the foregoing descriptive matter is to be implemented merely as illustrative of the disclosure and not as a limitation.
ADVANTAGES OF THE INVENTION
[0095] The present disclosure provides a system and method for
troubleshooting using error logs in a network.
[0096] The present disclosure provides a system and method for enabling
logging in an error mode to capture details for error scenarios.
[0097] The present disclosure provides a system and method for enabling or
disabling logging in the error mode using runtime configurable flags.
[0098] The present disclosure provides a system and method for allow the
users to collect the logs as per requirement.
[0099] The present disclosure provides a system and method for capture

different call flow details in loggers.
[00100] The present disclosure provides a system and method to use a set of
runtime configurable flags for capturing specific information to determine activity or event that is performed within signalling messages. The number of input and output operations are reduced, thereby facilitating effective resource utilization. Also, reducing the need for resources during running traffic.

WE CLAIM:
1. A method (400) for troubleshooting of a network (106) by capturing a
plurality of logs in an error mode, the method (400) comprising:
creating (402) a dynamic logger for capturing error details associated with an application;
on detecting an error in one of a plurality of conditions, enabling (404) a runtime configurable flag corresponding to the one of the plurality of conditions using the dynamic logger;
capturing (406) the error details in a log corresponding to the one of plurality of conditions; and
disabling (408) the runtime configurable flag after capturing the error details in the log.
2. The method (400) as claimed in claim 1, wherein
the captured error details in the log are stored in one of a plurality of log files, wherein the captured error details are used for error debugging.
3. The method (400) as claimed in claim 1, wherein
the captured error details include an international mobile subscriber identity (IMSI), a session identity (ID), error codes, a destination host, an origin host, and an attribute-value pair (AVP).
4. The method (400) as claimed in claim 1, wherein
the plurality of conditions includes an abort session request (ASR) -an abort session answer (ASA) messaging, a Re-auth request (RAR) - a Re-auth answer (RAA) messaging, a session termination request (STR) - a session termination answer (STA) messaging, charging rule reporting, creating a dummy a subscriber profile repository (SPR) profile, and receiving an emergency request.

5. The method (400) as claimed in claim 1, wherein
a plurality of runtime configurable flags includes an ASA error log enable flag, a RAA error log enable flag, a STR error log enable flag, a charging rule report log enable flag, a SPR failure debug flag and an emergency debug flag.
6. The method (400) as claimed in claim 2, wherein
the plurality of log files is created based on file size and time duration, wherein managing count of the plurality of log files.
7. The method (400) as claimed in claim 1, wherein
a plurality of old logs is overwritten based on a plurality of runtime configurable flags.
8. A system (108) for troubleshooting of a network (106) by capturing a
plurality of logs in an error mode, the system (108) comprising:
a creation unit (212) configured to create a dynamic logger for capturing error details associated with an application;
on detecting an error in one of a plurality of conditions, a processing unit (214) is configured to enable a runtime configurable flag corresponding to the one of the plurality of conditions using the dynamic logger;
a capturing unit (216) configured to capture the error details in a log corresponding to the one of plurality of conditions; and
the processing unit (214) is configured to disable the runtime configurable flag after capturing the error details in the log.
9. The system (108) as claimed in claim 8, wherein
the captured error details in the log are stored in one of a plurality of log files, wherein the captured error details are used for error debugging.
10. The system (108) as claimed in claim 8, wherein

the captured error details include an international mobile subscriber identity (IMSI), a session identity (ID), error code, destination host, origin host and an attribute-value pair (AVP).
11. The system (108) as claimed in claim 8, wherein
the plurality of conditions includes an abort session request (ASR) -an abort session answer (ASA) messaging, a Re-auth request (RAR) - a Re-auth answer (RAA) messaging, a session termination request (STR) - a session termination answer (STA) messaging, charging rule reporting, creating a dummy a subscriber profile repository (SPR) profile, and receiving an emergency request.
12. The system (108) as claimed in claim 8, wherein
a plurality of runtime configurable flags includes an ASA error log enable flag, a RAA error log enable flag, a STR error log enable flag, a charging rule report log enable flag, a SPR failure debug flag and an emergency debug flag.
13. The system (108) as claimed in claim 2, wherein
the plurality of log files is created based on file size and time duration, wherein the processing unit (214) is configured to manage count of the plurality of log files.
14. The system (108) as claimed in claim 8, wherein
a plurality of old logs is overwritten based on a plurality of configurable flags.
15. A user equipment (104) communicatively coupled with a system (108), the
coupling comprises steps of:
receiving, by the system (108), a connection request;

sending, by the system (108), an acknowledgment of the connection request to the UE (104); and
transmitting a plurality of signals in response to the connection request, wherein the system (108) is configured for troubleshooting of a network (106) by capturing a plurality of logs in an error mode as claimed in claim 8.