Bandwidth Measurement and Analysis using Mininet

Objective

To measure and compare bandwidth across different network topologies using Mininet and iperf.

Tools Used

• Mininet
• iperf
• Ubuntu (AWS EC2)

Topologies

1. Single Switch Topology
2. Two Switch Topology

Results

Topology	Bandwidth
Single Switch	29.0 Gbits/sec
Two Switch	27.4 Gbits/sec

Analysis

Bandwidth decreases as the number of switches increases due to higher network hops and processing delay.

SDN Controller

A Ryu controller was implemented for SDN-based control. Due to compatibility issues in the environment, execution was limited, but the controller logic is included.

How to Run

sudo mn --custom topology.py --topo mytopoh1 iperf -s &
h2 iperf -c h1