than one interface from the command line:
# /etc/rc.d/netif start bfe0 xl0
It's also possible to restart an interface(s):
# /etc/rc.d/netif restart bfe0
This required some changes to rc.subr(8) so that if the start/stop commands
are overidden the rest of the command line (after the start/stop/etc... cmd)
is passed through to the subroutines.