The Overview of Discovery and Reconciliation of LTE Network

International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395 -0056
Volume: 04 Issue: 03 | Mar -2017 www.irjet.net p-ISSN: 2395-0072
© 2017, IRJET | Impact Factor value: 5.181 | ISO 9001:2008 Certified Journal | Page 938
The Overview of Discovery and Reconciliation of LTE Network
Sahana M R1, Akhila Kowshik H R2, Asst. Prof. Shashank D3
1B.E. in Information Science and Engineering, NIE,Mysore,Karnataka,India
2B.E. in Information Science and Engineering, NIE,Mysore,Karnataka,India
3 Assistant Professor, Dept. of Information Science and Engineering, NIE college, Karnataka, India
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Abstract - Discovery and Reconciliation of LTE Network
describes the web-based discoveryandreconciliationtoolused
to discover and reconcile discrepancies between two entities,
in particular, between the network and Adaptive Inventory
(AI).It is necessary to keep records of each and every device in
network for the company by which it can keep the details
about the devices recorded in the network as per the status of
presence or failure of thatdevice. DiscoveryandReconciliation
of LTE Network supports the discovery of physical and logical
network assets. The discovered objects are then compared
with objects stored in a system, typically the Adaptive
Inventory. Discrepancies are identified, along with
recommended ways to resolve the discrepancies. This paper
provides the overview of system flow of Discovery and
Reconciliation of LTE Network and also includes the existing
system and the proposed system.
Key Words: Long Term Evolution, Universal Mobile
Telecommunication System, Home Subscriber Server,
Packet Data Network, Mobility Management Entity.
1. INTRODUCTION
The primary function of Discovery and Reconciliation[1] is
to keep the Adaptive Inventory database and a variety of
different types of networks in synchronization with one
another. Discovery and Reconciliation uses the Adaptive
Inventory with the Adaptive Inventory XML Gateway to
provide a complete data discovery and reconciliation
solution.
It performs the following tasks:
Discovery - It collects data from both logical and physical
networks and other sources of discovered data, in real time
or as scheduled by the carrier. It provides the data in a
normalized format.
Reconciliation - It suggests specific reconciliation actions to
resolve these discrepancies, and allows the user to select
which objects shall be reconciled – manually or
automatically.
Discovery and Reconciliation works with any network
equipment. New equipment types can be added quickly as a
carrier's network expands. DiscoveryandReconciliationcan
also interact with NMS/EMS (Network Management
System/Element Management System) or with any other
system that contains network data to upload and transform
the network data and limit additional touch-points into the
network.
2. EXISTING SYSTEM
In case of existing system the organization is using a tool in
conjunction with the Bulk Loader utility whichdiscoversthe
network elements in bulky mannerandtheresultsproduced
are not that efficient as per the organization standards[3].
When new device get added to network then they manual
enter it into their data and the next time when discoverywill
run that device will be identified. Existing system does not
allow end user to reconcile the discovered information.
3. PROPOSED SYSTEM
In this system we are providing Range based discovery,
Individual discovery & Device based discovery of network
elements from which Device Based Discovery is absent in
existing system. This will be advantageous if any new device
that has been added will get discovered at the time of Range
Based Discovery and gets added in the main inventory. This
will save lot of time & will improve the efficiency of the
system by reducing the efforts of manual entry.
Our system also has options by which the user can perform
the selection for updating the database either through
automatic update functions or it can be done by user
manually after the discovery of network elements. Our
system also provides the Individual Device Discovery by
which the user can search any onespecificstandalonedevice
by its IP address.
4. SYSTEM ARCHITECTURE
Fig -1: Architecture of the 4G discovery adapters

The above diagram illustrates the architecture of the 4G
discovery adapters and the flow of data from sample NMS to
Granite. The NMS creates equipment files, which are called
export files. In the case of 4G technologies, these exportfiles
are XML-based. When jobs are initiated in the Discoveryand
Reconciliation, via the Orchestration Module or via the Site,
NMS Sweep, or EH Modules, the Discovery and
Reconciliation module sends an appropriate Request
message to the 4G Adapter. Based on theRequestthatcomes
from the Discovery and Reconciliation, Parser reads the
appropriate extract file and creates an MTOSI response
based on the contents of the extract file and the
"instructions" present in the Site/Sweep/EHConfigfile. This
MTOSI response is used to discoverandreconcileagainstthe
inventory contained within Granite Inventory.
4.1 Hardware and Software requirements
1. Granite Inventory
2. Oracle Web Logic Server
3. Granite Admin Client
4. Granite User Client
5. Oracle Database
6. Java JDK
7. Eclipse
8. Adapter Tool Kit – Provides libraries to develop LTE
adapter.
5. SYSTEM FLOW
The Northbound system for Discovery is the Database. All
jobs start with Discovery querying the database and getting
information that would aid in executing jobs. TheNetwork is
considered the Southbound system for Discovery and
communications to the southbound system is done via
Adapter.
Fig -2: System Flow for Discovery job
The above figure depicts a typical system flow for a
Discovery job .The cycle of Discovery from start to updating
Granite is called a job. Inside a job, multiple tasks are
executed withina job. Once a job is finished, the output ofthe
jobs can be updating the database, publishing a JMS event,
both or No Action. Depending on the job type, Discovery
might spawn off other jobs to complete the job that was
executed.
6. HIGH LEVEL SYSTEM COMPONENTS OF
DISCOVERY AND RECONCILIATION
The following are the major components of a Discovery
Solution:
1. Database: TypicallyGraniteisused.Otherdatabases
can be connected to Discovery.
2. Discovery and Reconciliation Product: the main
component of a Discovery Solution, its main
responsibility is to get the data from the Network
and reconcile it in a Database.
3. ASI: Used to query Granite for the Core Discovery
Modules. For custom modules, it is used to query
and update Granite.
4. Gateway: A system used to update Granite.
Discovery uses Gateway to update Granite for its
Core Modules.
5. Discovery Designer Studio: A tool that can be used
to create custom modules in Discovery.
6. Connectors – Used by Discovery to connect to
Granite and other systems.
Adapters: Used to query the Network and return data to
Discovery for reconciliation
Fig -3: High level system components of discovery and
reconciliation
7. DISCOVERY AND RECONCILIATION MODULES
Discovery and reconciliation contains various modules to
discover and reconcile network.
7.1 NMS Sweep Module
This module facilitates the discovery of all nodes or
containers that are managed within an NMS.

7.2 LTE (4G) Module
The LTE module allows you to discover and reconcile
between Inventory and the Network the logical nodes of
an LTE (4G) wireless network, starting at the NMS and
eNode B. This module supports the hierarchical
relationship between the logical nodes and the equipment
relationships with the physical nodes.
7.3 Equipment Hierarchy Module
This Module discovers and reconciles physical network
information. Physical Network information includes
parameters that are directly associated with a physical
component of a network element.
Fig -4: Equipment hierarchy module
8. SAMPLE EQUIPMENT STRUCTURE
Fig -5: Sample Equipment Structure
In Inventory, network equipment is divided into two main
subclasses: shelves and containers. Shelves are pieces of
equipment that house slots with cards (and ports), such as
multiplexors. Containers are pieces of equipmentthathouse
other containers or shelves, suchasa rack orswitch.A“card”
is a board, drive or other piece of apparatus that sits in a
shelf and may or may not contain sub-cards and/or ports. In
Inventory, a card is always contained within a shelf (either
directly or through a parent card).
Ports provide origin and termination points for segments,
paths, networks, cables, and other equipment. They reside
on cards and can be either logical or physical, depending on
their application.
In Inventory, the path object is used to model a series of
elements that facilitate the transmission of data at a specific
bandwidth between two locations. Itisaninterconnection of
elements, such as ports, cables, segments, and channels on
higher bandwidth paths.
9. CONCLUSION
In this paper, Discovery system flow is proposed, which
overcomes the limitation of previous static method. It will
significantly improve the performance. Discovery alsohelps
in keeping track of all the devices in network and performs
fault detection and management. When combined with
knowledge based search algorithms, its performance could
be further improved. In conjunction with Discovery and
Reconciliation of LTE Network, adapters are used to
communicate with each vendor's Network Element(NEs)or
Element Management Systems (EMS). This allows Adaptive
Inventory users to query network equipment and
synchronize the inventory data with the discovered results.
REFERENCES
[1] Discovery of Network Elements and Reconciliation by
Ajay Chakkar, Ranjeet Ghodake, Tushar Nalawade, Tanaji
Nathe.
[2] Ericsson Discovery and Reconciliation, User Guide.
[3] discovery of network elements and reconciliation
Narendra Shewale1, Sharad Hadke2, Mayur Kharote3.

The Overview of Discovery and Reconciliation of LTE Network

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