#!/usr/bin/python # fairness.py # A complex test for butterly-like topology, # using 3 TCP connections and 3 ping flows. # # Bottleneck of 4 Mbit/300 ms overall delay is added. # # s1---. .---r1 # s2----\ / # s3-----\__.R1---R2.__/__.--r2 # s4-----/ \ # s5----/ \_.--r3 # s6---^ # from topology import * T = Topology() net1 = Network(T) net2 = Network(T) net3 = Network(T) router1 = Host(T, net1, net2, delay2="150", bw2="20M") router2 = Host(T, net2, net3) send1 = Host(T, net1, args="tcpbench:t:172.16.3.2:") send2 = Host(T, net1, args="tcpbench:t:172.16.3.3:") send3 = Host(T, net1, args="tcpbench:t:172.16.3.4:") send4 = Host(T, net1, args="ping:172.16.3.2:") send5 = Host(T, net1, args="ping:172.16.3.3:") send6 = Host(T, net1, args="ping:172.16.3.4:") recv1 = Host(T, net3, args="tcpbench:r:") recv2 = Host(T, net3, args="tcpbench:r:") recv3 = Host(T, net3, args="tcpbench:r:") sleep(1) start(T) wait(send1) wait(send2) wait(send3) cleanup()