SDN-based Enterprise Network

Title: SDN-based Enterprise network (Total Marks = 30%)

Aim: To develop an OpenFlow-based SDN network for an Enterprise Environment

1. To gain a fundamental understanding of Open SDN architecture.

2. To learn how to work with SDN controllers and switches.

3. To learn how to work with OpenFlow protocol

4. To learn to program with Python (or other languages used for SDN programming) and develop SDN scripts and applications.

5. Learn to translate requirements, identify best solutions and implement an SDN architecture.

Expected outcomes from this assignment:

You are expected to make two submissions as below:

1. A detailed report, outlining an overview of design codes, App developed and screenshots of the working prototype.

2. A recorded presentation, which covers the design and developments in the assignment.

Project Description:

You have been hired to develop SDN solution for college. The logical design diagram for the network is shown below.

Figure 1: College logical network design.

The college has three sites, which is labelled as site1, site2 and site3 respectively (as shown in Figure 1). Each site has buildings and connections, which have built-in redundancy to ensure high availability. There are three servers – external server, student server, and staff server. Your task is to build a switching with firewall capabilities application for this network.

Student Report Requirements:

Your report submission will be divided into two parts, as described below:

Part A: Network Topology Creation in Mininet (Marks = 10%)

In this part, you will design and implement the above topology using Mininet. You will need to explain your code and provide sample screenshots of the running topology.

Part B: Network Configuration and Application Development (Marks = 15%)

Application must fulfil below criteria:

1. Students and staff are in different VLANs:

a. External server subnet is 15.0.0.x.

b. Student subnet is 10.0.0.x

c. Staff subnet is 20.0.0.x

2. External server must be accessible internally and externally (by both students and staff subnets).

3. No external connections are allowed for Student and Staff servers.

4. Students can access external server but must not have access to staff subnet.

5. Staff has access to all three servers (external server, student server, and staff server).

6. Maintain redundancy of links. That is if any link goes down, all sites should still be able to access other parts of the network.

7. Allow HTTP, DNS, and mail traffic. All other traffic must be blocked.

8. Run Iperf test to show the connectivity and bandwidth between servers.

9. Assume students and staff are distributed throughout the network. For the sake of demonstration, you can assign one host each per switch to emulate student and staff hosts.

Report Presentation (Marks = 5%)

You are expected to give a recorded presentation covering all the development aspects of the project. This presentation is to be no more than 15 minutes in duration and it must clearly and concisely cover all the above parts of the report. The following items illustrates the marking criteria for this presentation:

1) Clarity and Communications (Marks= 2%)

2) Organisation and Structure (Marks= 2%)

3) Technical Coverage (Marks= 1%)

Report Guideline

The following guideline must be provided by students in their reports. You need to provide required description and screenshots for each section and subsection of this guideline.

Part A: Network Topology Creation in Mininet (Marks = 10%)

A-1) Screenshot of network design in Mininet and description of design (Marks= 2%) A-2) Mininet code explanation and screenshots (Marks= 8%)

Part B: Network Configuration and Application Development (Marks = 15%)

B-1) Switching or Routing Application to provide full connectivity (Marks= 10%):

B-1-1) IP addressing (Marks= 1%)

B-1-2) Network Bandwidth setup based on given network design (Marks= 2%) B-1-3) Switching or Routing Application to provide full connectivity (Marks= 3%) B-1-4) Restricting access based on project description (Marks= 2%)

B-1-4-1) External server must be accessible internally and externally (by both students and staff subnets).

B-1-4-2) No external connections are allowed for Student and Staff servers.

B-1-4-3) Students has access to student server and external server. But, they must not have access to staff subnet.

B-1-4-4) Staff has access to external server, student server, and staff server.

B-1-5) Redundancy (Marks= 2%)

B-2) Applications/Port Rules (Marks= 5%)

B-2-1) Block all traffics except HTTP, DNS, and Mail traffic (Marks= 3%) B-2-2) Iperf test (Marks= 2%)

B-2-2-1) Iperf test from student server to external server B-2-2-2) Iperf test from staff server to external server

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创建时间：2022-05-06 13:35