parallel hosts TCP connection

Question

I am a new in python programmer over mininet simulator, I try to create n host that connect to a single server and generate parallel connection flows the only thing I got is

for i in n:
    h=netobgect.get("h%s"%i)
    h.cmdPrint("iperf -c 10.0.0.1 ")

the problem that there is delay between host 1 and say n/2 will break the meaning of parallel, Is there any one can help me, I was looking for solutions

instead of for loop, just call it serially but i need my code dynamic use the scheduling command AT but bring problem

Answer 1

Run the commands on background with &.

for i in n: h=netobgect.get("h%s"%i) h.cmdPrint("iperf -c 10.0.0.1 &")