Network Design for HS3 Building

Abhimanyu PandeyAnil Manandhar

Mahesh TripathyPawan Adhikari

Introduction

• Aim of project: To model network of HS3 building• Network should be:

o Reliableo Accessibleo Scalableo Secure

• Need for simulation: o Expensive hardwareo Network parameters

• Tools used: OPNET Simulation

HS3 Building departmentsProsthetics & Orthotics 7

Podiatry 10

Social Work & Policy 2

Physiotherapy 20

Occupational Therapy 24

Dietetics & Human Nutrition 9

Allied Health HOS 17

Health Science Clinics 5

service /Desktop support 1

Graduate Assistant Teacher/Fellow 2

Associate Dean International 1

Coordinate HIM professor 1

Senior Advisor,clinicical school 1

MFD fleet support officer 1

User Profiles/Application profiles   Teacher

roomsPractical room/  class room

Lab rooms Common meetingrooms

Common sharedrooms

Record rooms

Web browsing heavy ✓ ✓ ✓

Web browsing medium ✓ ✓ ✓

Email Heavy ✓ ✓ ✓

Email medium ✓ ✓ ✓

File transfer heavy ✓ ✓

File transfer medium ✓ ✓ ✓

File print heavy ✓ ✓

File print light ✓ ✓ ✓

Selection of network topology

Flat network Topology Vs. Multilayered Design→Networking Devices→Cost efficiency with contrast to network Debugging→ Broadcast Domain/Collision Domain

Multilayered Design→ MDF and IDF→Scalability

Access Layer Design

→ Unshielded Twisted cabling→Switches and not Hubs-CISC0 2960S →Power over Ethernet→ Link Standards in IDF and MDF platforms

- 100 Base T over CAT5 UTP→Need of Gigabit Ethernet

- Exploding Bandwidth Requirements-Existing UTP instead of Fiber gigabit

Access Layer Design

Introduction to VLAN

→ Feature of Multilayered Topology→ Switches Separating Broadcast Domains.→ Native VLAN→ Subnets Vs. VLAN

Building topology

Opnet Modelling – Native VLAN• Link utilization with default VLAN

VLAN• Allows mulitple IP network and subnets to

exist in the same switched network• VLAN ID: identification of same group of

network• Access link: link with single VLAN ID• Trunk Link: link with multiple VLAN ID

WHY VLAN? -Security

WHY VLAN?-STP use• STP: bridge protocol that utilizes the spanning-tree

algorithm• helps the bridges or switches to be loop free • shut down bridge interface to maintain loop free• Priority to block: 1. A lower Root Bridge ID.

2. A lower path cost to the Root.3. A lower Sending Bridge ID.4. A lower Sending Port ID.

WHY VLAN?-Limited Recourse Management

• PVST+: per VLAN STP

Inter VLAN Communication• One Armed Router: single physical interface

route the different vlan on a network• router accepts VLAN tagged traffic on the trunk

interface • then internally route the VLANs using

subinterfaces

One Armed Router-Secure Resource management

Project implementation- on Fifth floorcomponents ip addresss subnet maskPrinter_1 192.0.1.200 255.255.255.0Printer_2 192.0.2.200 255.255.255.0Printer_3 192.0.3.200 255.255.255.0

Teacher_DeptC 192.0.3.250 255.255.255.0

Teacher_DeptD 192.0.4.250 255.255.255.0

Teacher_DeptE 192.0.5.250 255.255.255.0Class 192.0.8.10 255.255.255.0Class_2 192.0.8.100 255.255.255.0Record room 192.0.10.10 255.255.255.0Shared 192.0.7.10 255.255.255.0Meeting 192.0.6.10 255.255.255.0

Results comparison-Queuing delay from core switch to floor switch

Result comparison-page response of HTTP by Teacher Dept C

Result comparison-HTTP received by Teacher Dept C