-4 Use AF_INET (aka IPv4) addressing for the control and possibly data connections.
-6 Use AF_INET6 (aka IPv6) addressing for the control and possibly data connections.
-d Increase the quantity of debugging output displayed during a test (possibly at the expense of performance).
-h Display a usage string, and exit.
-L name,family Set the local name and/or address family for the socket used for the control connection.
-p portnum Listen on the specified port. This is used when running as a standalone daemon.
-v verbosity Set the verbosity level for the test.
-V Display the netperf version and exit.
Netperf: A Network Performance Benchmark
http://www.netperf.org/
Rick Jones <rick.jones2@hp.com>
Karen Choy HP IND
Dave Shield <daves@csc.liv.ac.uk> (man pages)
Others too numerous to mention here - see the AUTHORS file