Search code examples
openflowmininet

How to craft specific packets on the host of Mininet to generate massive Packet-In messages

I am wondering that how to generate massive packet-in messages to the controller to test the response time of SDN controller in the environment of Mininet.

Can you give me some advice on it?

Solution

  • You could use iperf to send packets, like this: 

    $ iperf -c -F

    You could specify the amount of time:

    $IPERF_TIME (-t, --time)

    The time in seconds to transmit for. Iperf normally works by repeatedly sending an array of len bytes for time seconds. Default is 10 seconds. See also the -l and -n options.

    Here is a nice reference for iperf: https://iperf.fr/.

    If you would like to use Scapy, try this:

    from scapy.all import IP, TCP, send

data = "University of Network blah blah"
a = IP(dst="129.132.2.21")/TCP()/data
send(a)