Networking allows computers and devices to communicate and share resources through interconnected communication channels. A network's performance is measured in bits per second. VLANs allow hosts to communicate as if on the same broadcast domain even if not on the same switch. Switches use MAC addresses to forward frames while routers use addresses to determine a packet's destination and direct it accordingly. The proposed network layout for ONGC improves redundancy, controls data flow, reduces load, and serves as a backup in case of failures.

1. NETWORKING, COMMUNICATIONNETWORKING, COMMUNICATION
SYSTEMS ANDSYSTEMS AND SCADASCADA
Presented by-
Pratik Aggarwal
B.Tech-IV YR(CSE))

2. COMPANY PROFILE
ONGC ranks
 3rd Oil & Gas Exploration & Production Company in the world
 23rd among leading global energy majors as per Platts 250
Global Energy Companies List for the year 2009
 24th among the Global publicly-listed Energy companies as per
‘PFC Energy 50”
 Finance Asia 100 list ranks ONGC no 1 among Indian Blue
Chips.
 Occupies 155th rank in “Forbes Global 2000” list 2010 of the
world’s biggest companies for 2010 based on sales, profits,
assets and market capitalization.
 402nd position as per Fortune Global 500 - 2009 list; based on
revenues, profits, assets and shareholder’s equity.

3. NETWORKING
 Network is a collection of computers and devices interconnected by
communication channels for sharing of resources.
 It’s performance is measured in bits per second (bps).
 It helps in easy & efficient communication
 Sharing of information

4. NETWORKING
Ethernet cable Network Switch Ethernet Hub

5. VLAN
 It is a group of hosts with a common set of requirements that
communicate as if they were attached to the same broadcast domain
 A VLAN has the same attributes as a physical LAN, but it allows for
end stations to be grouped together even if they are not located on the
same network switch.

6. SWITCHES AND ROUTERS

Layer 2 switches uses MAC address from NIC to decide where to
forward the frames.
 Layer 3 switches are route-caching and topology based.
 A router is a device that forwards data packets between
telecommunication networks, creating an overlay internetwork.
 When data comes in on one of the lines, the router reads the address
information in the packet to determine its ultimate destination. Then,
using information in its routing table or routing policy, it directs the
packet to the next network on its journey or drops the packet.

7. OLD NETWORK

8. MIS DeptSimulation Lab
Core Switch L3 24 * 10G Base X
Edge 24 Port Switch L2- 2
10GB Ports for uplink
FIBER 10G link
OM3 50 Micron
10G CX4/DAA/SFP+
ServiceBuilding
IEOT
Building
Artifical Lift Finance Dept Mini Conf Room B-Block A-Block
Computer Center
D Block
Training & Marketing Co-Ordination
Proposed Network Layout Diagram
EXISTING FIBER 1GB
Link hav to re-terminate
on ST then ST LC patch
cordFIBER 1GB backup Link
Edge 48 Port Switch L2- 2
EXISTING FIBER 1GB
Link wont be used..
12 Core fiber 4 cores for link
aggregation & 4 for cross connect
Patch from 12 core
OCC

9. ADVANTAGES OF PROPOSED
NETWORK
 In the old network, if connection between the main L3 switch and
IOGPT network, gets any damage, IOGPT will be disconnected from
the network. This problem is solved by connecting indirectly to the
main server through IOET which will be used as a redundant line.
 Data flowing to the wings of IOGPT cannot be controlled in the
previous network. Adding a L3 switch between the main server and
IOGPT network will give the administrator power to control the flow of
data in the network .
 An additional L3 switch is added and each department of IOGPT is
connected to both the L3 switches, this will reduce the load on a single
line and also serve as a backup during the failure of any line.
 This will also help when one of the L3 switches itself gets corrupted or
damaged. Two lines are laid between the two L3 switches for backup.

10. SERVERS
 A computer program running to serve the needs or requests of other
programs (referred to in this context as “clients”) which may or may
not be running on the same computer.
 Types
 Application server-data & code integrity, centralized config, security
 File server-shared disk access, dedicated server, non-dedicated server
 Proxy server-security, to cache web pages frm web server,access policy
 Database server-to keep databases
 Web server-virtual hosting using 1 IP address, large file support

11. SCADA
Supervisory Control and Data
Acquisition
 It collects data from various sensors at a plant or factory at remote
places and then send this data to a central computer, which controls
and manages data.
 Supervisory: Operator/s, engineer/s, supervisor/s, etc
 Control: Monitoring, Limited, Telemetry, Remote/Local
 Data acquisition: Access and acquire information/data from
the equipment. Sends it to different sites
through telemetry in the required form.

12. ADVANTAGES
 Saves Time and Money
 Less traveling for workers (Jeep, Boat, )
 Reduces man-power needs
 Increases production efficiency of a company
 Cost effective for power systems
 Saves energy
 Reliable
 Supervisory control over a particular system

13. CONCLUSION
 Training has given me a hands on
experience of the networking component
and their interconnections.
 I was able to see all the tools used for data
acquisition from onshore as well as offshore
platforms, and how this data is transported
and interpreted/monitored at different
locations.

14. THANK YOU