In previous releases of OS X, there was a command called ipfw, that permitted throttling of network bandwidth, which is useful for running some kinds of tests on software.
It appears that as of Yosemite that command is gone. So what is the replacement and how can a user to throttle bandwidth?
MacOS – how to throttle Internet bandwidth
command lineipfwmacosNetwork
Best Answer
the replacement is
pf
, seeman pfctl
. also, seeman dnctl
for traffic shaping purposes.Apple's Network Link Conditioner utility (only available in their developer downloads section, behind a login) uses these two facilities to do its thing.