ping -f -s [data size] [host ip address]

Between two hosts you can get it to pound the other guy pretty hard.

Then when you CTRL-C the app, ping will tell you the min/max/average round trip time.

If you take [data size] and divide it by the round-trip avg, then multiply by 2 you get the throughput in MBytes/sec.

Playing with [data size] makes a big difference - and 'bigger is better' - but I think the max is 65000 or so. On my system 100Mbps system using [data size] = 65000 , I got a maximum of roughly 8 MBytes/sec, or 64 MBits which seems pretty reasonable on a 100 MBps system.

-- MattWalsh - 15 Jun 2001