Datacenter-Network-Simulation-using-ns3
This is the project for the USTC course ：Advanced Computer Networking
project 1：Datacenter Network Simulation using ns3
Objective
- Simulate a datacenter network using ns3.
- Experiment two traffic patterns.
- Examine the network.
- Improve the network.
topology
Description
- 8 servers: n1\~8; 4 ToR switches: t1\~4; 2 aggregation switches: a1\~2; 1 core switch: c1
- The network is partitioned into two clusters
- The links connecting to c1 are PPP, or the other networks are Ethernets, the networks’ capacities are shown on the topology graph.
- All the end-end delays on the networks are 500ns.
- IP address assignment is shown on the topology.
- All the switches behaves like OSPF routers.
Traffic patterns
- Pattern 1: inter-cluster traffic
- Each server communicates using TCP with another server that comes from different cluster
- For example, 1-5, 6-2, 3-7, 8-4
- Each server communicates using TCP with another server that comes from different cluster
- Pattern 2: many-to-one traffic
- Select one server as the sink, and all the other servers communicate to it
- Simulate the two patterns separately, obtain the throughput that the network can achieve, and find out the network bottleneck, how to improve the network.