lowercase 'm' with dummynet rate limiting ? Known issue ?

[Tobias P. Santos]

Ensel Sharon escreveu:
[...]
> ipfw pipe 1 config bw 10mbit/s
> 
> Oops.  After about 5 minutes, the prompt returns, so it's not like a
> normal accidental-ipfw-lockout (when those happen you never see the prompt
> again).  But it might as well be, because that was the last response I got
> out of that system - can't ping it, can't connect, and both ssh sessions
> timed out trying to get a prompt back.
> 
> So what did I do wrong ?  I see that the man page calls for a uppercase M
> (10Mbits/s) whereas I typed a lowercase 'm'.  Was that the problem ?  Or
> was I supposed to remove the first pipe completely before reissuing the
> 'ipfw pipe 1 config' command again ?
> 
> Any idea why that command took it off line ?

Similar issue:
http://lists.freebsd.org/pipermail/freebsd-net/2006-November/012566.html

Regards,
Tobias.