tcpblast - tool for measuring network bandwidth tcpblast [options] destination[:port] tcpblast/udpblast is a simple tool for probing network and estimating its throughput. By default it sends 300 blocks (1024 bytes each) of data to specified destination host. Destination can be name or address, IPv4 or IPv6. When IPv6 address is specified with port it should look like: '[3ffe:8010::1]:9' (with single quotes to prevent shell expansion of []).

Options
RATESPEC RATE[,TIME][:RATE[,TIME]]... RATE generating data at RATE speed in B/s TIME for TIME seconds (can be floating point number), last can be omitted and that time will be infinite Options -b, -c, -R, -s and -t can use case insensitive unit multipliers and specifiers: size (bytes): -b and -s argument without units is in bytes, can use [{k,m,g}]b (lower or upper case) for KB, MB or GB. {k,m,g} are powers of 1024. number: -c argument is just a number, can have k, m or g added (powers of 1024), no unit needed rate (bytes pes second): -R RATE is in B/s or Bps, the postfixes can be [{k,m,g}]{b/s,bps} time (seconds): -t and -R TIME argument is in seconds, can be postfixed with [{k,m,g}]{s,min,h,w,m,y} Example: tcpblast -b 4KB -c 10k -R 10kbps,2:20kbps,3s target tcpblast version: FreeBSD + rzm 20001030 Rafal says that he is a perfectly bad and careless maintainer :) If You found any other bugs send it to him.