Training at NTPC EOC (Engineering Office

Complex)

Presentation Synopsis

Study of the existing network at EOC building which is implemented on Extreme switches.

Creating & configuring VLAN. Troubleshooting related to networking.

Study Of LAN at NTPC-EOC

NTPC EOC is a multistory building with 7 working floors.

Network setup is done in a systematic and planned manner.

Though there is diversity of working department in each floor all the work is done on a sharing basis.

Internet Server Farm

BD – 8806(Sixth Floor)

BD – 8806(Fifth Floor)

BD – 8806(Fourth Floor)

BD – 8806 (Third Floor)

BD – 8806(Sixth Floor)

BD – 8806(Fifth Floor)

BD – 8806(Fourth Floor)

BD – 8806 (Third Floor)

Summit 400-48(Second Floor)

BD – 8810 (Core B)

Second Floor Hall BD – 8810 (Core A)

Cisco 6513(IS)

Alteon Firewall First Floor

Integrated Network after Up-gradation

Summit 400-48

Entrasys – Seventh Floor

Cisco 4606 (DS 2)

Cisco 2950

Cisco 2950

Cisco 2950

R&D Building

3

2

G

The EXTREME BLACK DIAMOND 8810 was the core switch for entire network.

The servers were connected to the Core switch.

There were 14 distribution switches (EXTREME BLACK DIAMOND 8806)at 7 floors each of which connected to both the core switches, switches gave desktop connectivity of max 100 Mbps.

Backbone connectivity in Engg LAN was on UTP : 1Gbps Max

Floor wise layout of network

Each floor is broadly divided into front hall and rear hall with 70 to 75 terminals each.

In all there are about 1000 terminals.

The switches are such placed so that they can cater the increase in the number of terminals in future.

VIGILANCE6 NODES

HINDI CELL3 NODES

STORE3 NODES

STORE3 NODES

MED. HALL5 NODES

PRINT ROOM4 NODES

BASEMENT

GROUND FLOOR RIGHT WING

FROM FIRST FLOORP&A HALL, FRONT RIGHT BLOCK

EOC BUILDING GND & BASEMENT

FIBER BACKBONE

UTP BACKBONE

CONF. ROOM5 NODES

GROUND FLOOR LEFT WING

NCR ENGG8 NODES

QUALITY MGMT7 NODES

CONF. ROOM5 NODES

FROM I FLOORESTABLISHMENT RACK

Location - DLocation - D

FINANCE FRONT LEFT BLOCK

20 NODES

ACCOUNTS20 NODES

ESTABLISHMENT25 NODES

DOCUMENTATION12 NODES

FRONT HALL58 NODES

PR HALL05 NODES

P&A HALL25 NODES

O&M HALL17 NODES

P&A HALL FRONT RIGHT BLOCK

25 NODES

CENTRAL SWITCHII FLOOR

TO GROUND FLOOR SWITCH

EOC BUILDING FIRST FLOOR

FIBER BACKBONE

UTP BACKBONE

TO GND FLOOR20 NODES

Location - BLocation - B

Location - CLocation - C

Location - ALocation - A

REAR LEFT18 NODES

REAR RIGHT18 NODES

CENTRAL SWITCHII FLOOR

EOC SECOND TO SEVENTH FLOOR

FIBER BACKBONE

UTP BACKBONE

FRONT LEFT18 NODES

FRONT RIGHT18 NODES

TO SIXTH FLOOR

FRONT HALL60 NODES

REAR HALL60 NODES

Location ELocation E

Location FLocation F

Implementation

Backbone on Fiber (10Gbps capable) Installation and configuration of

Switches. Changeover from Old Switches

Integration LAN-Within Extreme switches.

Benefits of LAN at NTPC-EOC Redundant self healing network.

Increased availability of LAN.

User accessing any server now has redundant paths available on 10G.

Load sharing can also be done. Will be done if required if load increases.

Complete network is 10G capable. With the addition of 10G module & ports for backbone connectivity all extreme switches can be on 10G

Virtual Local Area Network

A VLAN is a logical grouping of network users and resources connected to administratively defined ports on a switch.

A VLAN is treated like its own subnet or broadcast domain, meaning that frames broadcast onto the network are only switched between the ports logically grouped within the same VLAN

VLAN cannot communicate with hosts that are members of another VLAN, so if we want inter-VLAN communication we need a router.

VLANs have been designed to address the following problems inherent in a flat, bridged network:

1. Scalability issues of a flat network topology .

2. Simplification of network management by facilitating networks reconfigurations.

Benefits of VLANs

Broadcast Control Security Flexibility and Scalability Performance Network Management

Commands for creating and configuring VLAN

Create VLANCreate vlan<vlan_name> Delete VLANdelete vlan<vlan_name> Configure VLANConfigure vlan<vlan_name>

name<name>

SWITCHES

CISCO CATALYST 6500 SERIES

Switch fabric modules Fast ethernet modules Gigabit ethernet

modules Flex wan modules ATM modules

EXTREME BLACKDIAMOND 8800

High density gigabit and 10 gigabit ethernet switch

High availability to maximize network uptime

Ease of management to reduce the complexity of network operation

Problem analysis and their solutions

FIELDS OF PROBLEMS : MAIL CONFIGURATION ADOBE READER NETWORK RESOURCE SHARING PLATEFORM RELATED PROBLEMS

Future Implementation..

The network designed is such that it can be easily extended in future according to company’s requirement.

The study of switches help in designing a better network design.

Troubleshooting helps in understanding the problems of network and can help in design a better network.

Thank You

MADE BY: ANUJ

CHAUHAN

B.TECH(CSE) GGSIPU