GNS3
Packet Tracer (Cisco)
NETPLANNER
OMNeT ++
Network Simulator – NS3
http://netemul.sourceforge.net/
https://github.com/rkuebert/psimulator
http://wanem.sourceforge.net/
https://support.hpe.com/hpesc/public/home/driverHome?sp4ts.oid=7107839
