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COMMUNICATION AND INFORMATION SECURITY

Presented by-

Gaurav Patel

Neeraj Kumar

Suraj Mishra

Deelip Pardhi

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CONTENTS

LINE COMMUNICATION

BROADBAND WIRELESS ACCESS

SATELLITE COMMUNICATION

COMPUTER NETWORK

INFORMATION SECURITY

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BASICS OF SIGNALLING

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Subscriber A Subscriber BSwitch or ExchangeLoop Extension

On lifting telephone (off hook ) current flows from Switch or Exchange to the telephone and back. This is called as a “Loop extension”.

Mainly uses two types of dialing -- Pulse Dialing and Tone Dialing

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VARIOUS TONES AND SIGNALLING TYPES

SS7 signaling uses Common Channel Signaling (CCS) in which the path and facility used by the signaling is separate and distinct from the telecommunications channels that will ultimately carry the telephone conversation. With CCS, it becomes possible to exchange signaling without first seizing a facility, leading to significant savings and performance increases in both signaling and facility usage

Technology used in Signaling - Most of the Conventional Telephone Exchanges uses SS7 signaling protocol for signaling purpose. Signaling System No. 7 (SS7) is a set of telephony signaling protocols which are used to set up most of the world's public switched telephone network (PSTN) telephone calls.

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SETUP IN ONGC

Vsat connectivity

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.

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BSNL/MTNL NETWORK

STD

Local Exch.

Cellular Network

Paging Network

ISD

PBX

Last mileon copper

ISDN

connectivity

Voice DataVideoFax

Legend:

Copper MediaCopper, fiber, Radio(Media)Fiber, Radio, Sattelite (Media)

Fiber, Radio,V-sat, Sattelite (Media)

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BWA

BWA network uses Wimax Technology

Wimax (Worldwide Interoperability of Microwave Access ) refers to interoperable implementations of the IEEE 802.16 family of wireless-networks standards ratified by the WiMAX Forum.

WiMAX can provide two forms of wireless service:

Non-line-of-sight service is a WiFi sort of service. Here a small antenna on your computer connects to the WiMAX tower. In this mode, WiMAX uses a lower frequency range (similar to WiFi).

Line-of-sight service, where a fixed dish antenna points straight at the WiMAX tower from a rooftop or pole. The line-of-sight connection is stronger and more stable, so it's able to send a lot of data with fewer errors. Line-of-sight transmissions use higher frequencies, with ranges reaching a possible 66 GHz.

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Wi-Fi Standards

Standard Throughput Range Frequency

802.11a Up to 54 Mbps

Up to 300 ft

5 to 6 Ghz

802.11b Up to 11 Mbps

Up to 300 ft

2.4 Ghz

802.11g Up to 54 Mbps

Up to 300 ft

3.5 Ghz

Standard Throughput Range Frequency

802.16 32-134 Mbps 1-3 miles 10-66 GHz

802.16a Up to 75 Mbps

3-5 miles < 11 GHz

802.16e Up to 15 Mbps

3-5 miles < 6 GHz

Wimax Standards

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TYPICAL BWA NETWORK

Remote EPS

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23

o 50’

Asset HQBase Station100M Tower

Router/switch.

Existing LAN

Existing EXCH

Sectoral Antenna

Remote CTF

EXCH

VoIP Gateway

NMS

Remote GGS

VoIP Gateway

PRI

E&M

L-3 switch

Radio

Radio

L-3 switch

L-3 switch

L-3 switch

Radio

Radio

Radios

W/O Rig -WIMAX Coverage

WiFI

WiFI L-3 switch

W/O Rig- Beyond WImax Coverage

Radio

Media gateway & Soft

Exchange

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SATELLITE COMMUNICATION

•Satellite Communication operates in Microwave frequency Band and Can be considered as a Repeater placed in Space.•It consist of ground-based or Earth stations (i.e. parabolic antennas) and orbiting transponders which receives signal from the ground unit (uplink) amplifies it and then transmits it back to earth (downlink).• Large coverage area across terrestrial boundaries, cost is independent of the distance.

GENERAL OPERATIONAL DIAGRAM OF SES

Power

amplifiers

Antenna feed

Demodulator

Antenna servo-mechanisms

Tracking receiver

Up converter Modulator

Sign

al p

roce

ssin

g eq

uipm

ent

Mul

tiple

xing

/de

mul

tiple

xing

equ

ipm

ent

Equi

pmen

t for

con

necti

on w

ith th

e te

rres

tria

l net

wor

k

Com

bine

rD

ivid

er

Low-noise

amplifiers

Diplexer

Tran

smis

sion

Rece

ption

Power supply

equipment

Down converter

Supervision and

command equipment

Telecommunication equipmentsMicrowave

frequency amplifiers Antenna system

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EVOLUTION OF SATCOM IN ONGC

OPSNET:

In 1982-83, two Satellite Earth Stations at Uran and BHN (offshore) were established under ‘Titan’ project in Mumbai. Subsequently three more SES at Hazira, BPA and Heera were setup during mid/late 80’s.

TELNET: During early 90’s 5 more SES were installed at DDN, BDA, NZR, AGT, JDR and RJY. Two SES of DOT at KOL, Chennai and NTPC Delhi Were used.

ICNET:

During 2000, VSAT based SATCOM network was established to cover 21 locations for providing voice and data circuits.

MFTDMA – C-band VSAT:

During 2008-09, MFTDMA based SATCOM network was established to cover the field installations like Production Installations, Geophysical Field Parties, and Drilling Rigs.

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INTRODUCTION TO VSAT• A class of Very Small Aperture Terminal, • Intelligent satellite earth station,• Suitable for easy on-premise installation, • Capable of supporting a wide range of two-way, integrated

telecommunication and information services.• consisting of hub, a relatively large central station and many VSAT

(remote) earth stations• network with star/ mesh topology• Data rate - low to medium bit rate (<= 2 Mbytes/sec) • Ku (14/11-12 GHz) and C (6/4 GHz) operation

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MFTDMA BASED C-BAND VSATThe project was based on MF-TDMA technology, covers 183 Satcom locations & 25 radio links spread across the country. Under the project the following installations have been provided with Satcom links.

• Production installations at various Assets (3.8m/ 2.4m) • Geophysical Field Parties (2.4m)• On-shore Drilling Rigs (2.4m)• Augmentation of 8 off-shore Drilling Rigs

• Based on IP technology, capable of handling fast data rates and provide a highly reliable and bandwidth efficient solutions for Voice & Data communication.

• Providing communication links between the field locations and their respective Assets/Basins for Enterprise Wide on-line SCADA to facilitate analysis of valuable well / Process data and Drilling data available in the SCADA servers.

• To ensure access to various corporate wide I.T. applications like SAP, Intranet/internet, e-mail from these field installations.

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INFORMATION TECHNOLOGYAND

NETWORK COMMUNICATION

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WHY ITThe objectives of ONGC is production of Oil and Natural gas. So ONGC basically deals with production aspect of the business. So, IT plays major role in supporting the company. All organisation need to be supported by network and communication so that the data can be transferred efficiently from and location to other.

Some of the fields of IT are-• Information sharing and faster access of data.• Bulk storage of data.• Secured and reliable storage of information.• Major role in ERP

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Existing InfrastructureIntegrated LAN & WAN infrastructure is available at all Regions, Projects, sites, institutes, offices comprising of-

• Campus wide LAN network using layer-2 switches & using backbones as UTP & OFC in all the work centers.

• All work centers are connected to Corporate Head Quarters over WAN (layer-3) using ICNET/leased Lines & Ku Band VSATs.

• Managed or Un-Managed Hubs

• Layer-2/Layer-3 Switches

• Routers

• Media converters

• Leased lines

• ISDN (BRI) based WAN channels.

• Leased Line modems etc.

•

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Web sites• reports.ongc.co.in• ongcindia.com• tenders.ongc.co.in• ongcvidesh.com• mail.ongc.co.in• webice.ongc.co.in

• The data centre at Scope Minar hosts various critical applications/ services such as Mail, ONGC reports portal, tenders web site, ONGC India website, Internet gateway, Antivirus, URL filtering. Besides the above, servers for NOC and SCADA are also hosted in Scope Minar Data centre.

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IT-Infrastructure Maintenance Management Services

• IT Infrastructure Maintenance and Management services (IT-IMMS) comprising of Maintenance Support Services (MSS) and Facility Management Services (FMS) for its existing and upcoming IT infrastructure

• The IT Infrastructure Maintenance and Management services (IT-IMMS) contract shall be a rate contract to be operated by In-charges of INFOCOM at various work centres to provide MSS & FMS support to IT Infrastructure

• Network & Information Security- The contractor will have to follow the prevailing ONGC IS policy and guidelines & methodology of industry standard ISO 27000

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Maintenance Support Services (MSS)This involves comprehensive maintenance and repair of all IT hardware covered under the contract including replacement of parts, modules, sub-modules, assemblies, sub-assemblies, spares etc. to make the system operational. This will include all kinds of breakdown and preventive maintenance. The breakdown could be for any reason, whatsoever.

Facility Management Services (FMS)This comprises Network management services, Periodic Network audit, Server Management services, Back-up services, Desktop management services, Active Directory, e-mail services, Antivirus management services, Internet access gateway management including firewalls, IPS, web content/ URL filtering (Employee Internet Management services), proxy servers/ services, Information security services, Asset management services, Vendor management services, Help Desk services and creation of resource bank. It does not include ERP Data & E&P Servers

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• Service Desk – centralised software CA Service desk installed at Network Operation Centre (NOC), SCOPE Minar, Delhi that is used for call logging, monitoring and resolution.

• ONGC has deployed CA IT Client manager as a part of desktop management. The tool provides Asset Tracking capabilities through automated discovery Hardware and software inventory, configuration management, software use monitoring, remote control.

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INFORMATION SECURITY

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Vision and Mission

Vision:

To become a leading organization having mature management system for information security matching with best in class information security practices covering people, process and technology.

Mission:

To establish, implement, operate, monitor and continually improve Information Security Management System that is aligned with Business Objectives.

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ISO 27001

ISO27001 formally specifies how to establish an Information Security Management System (ISMS).

The adoption of an ISMS is a strategic decision. The design and implementation of an organization’s ISMS is influenced by its

business and security objectives, its security risks and control requirements, the processes employed and the size and structure of the organization: a simple situation requires a simple ISMS.

The ISMS will evolve systematically in response to changing risks.Compliance with ISO27001 can be formally assessed and certified. A

certified ISMS builds confidence in the organization’s approach to information security management among stakeholders.

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STRUCTURE Of InfoSec Org.

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PERODIC REVIEW & VIOLATION

PERODIC REVIEW

VIOLATION

Information Security Policies, shall be reviewed on half yearly basis or if significant changes occur to ensure its continuing suitability, adequacy, and effectiveness.

Non-compliance or violation of Information Security policy shall result in disciplinary action as per CDA Rules.

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THANK YOU..!!