Useful utlities for use in emulating data center networks with Mininet

Contents:

• traffic_source.py--A script to generate TCP traffic from traffic matricies generated with DCT^2Gen by Philip Wette and Holger Karl (https://www.cs.uni-paderborn.de/fachgebiete/fachgebiet-rechnernetze/people/philip-wette-msc/dct2gen.html)
• fatTree.py--A Fat Tree topology implementation for Mininet based on: Al-Fares, M. et al. 2008. A Scalable, Commodity Data Center Network Architecture. ACM SIGCOMM Computer Communication Review. 38, (2008), 63.
• twoTierTree.py--A Two Tier Tree topology implementation for mininet
• threeTierTree.py--A Three Tier Tree topology implementation for mininet
• server_host.py--An implementation of a host that runs web and iperf servers and then connects randomly to another host using either web or iperf clients

All of this code is licensed under the BSD license. See the LICENSE file for details.