title: How to control Scapy sending packets speed?
body: <p>I am using <code>Scapy</code> to forge random tcp and udp flows to test packet-in flooding in my SDN experiment. But I don't know how to control <code>Scapy</code> sending packets speed. For example, if I want to set <code>Scapy</code> sending packets 1000 pkt/s, what should I do ? </p>