More addon tools simply proves the point.
Task / BSD / Linux
set ip / ifconfig / ifconfig or now "ip" which is extremely confusing
wifi / ifconfig / iwconfig
speed / ifconfig / miitool or ethtool
duplex / ifconfig / miitool or ethtool
vlan / ifconfig / vlan
wol / ifconfig / miitool or ethtool
bridge / ifconfig / brctl
link aggregation / ifconfig / flags while loading module OR use distro network config scripts and restart all networking or reboot server
Want find out which nic is occupying ethX perhaps for tuning or scripting etc?
Linux = complicated, by distro/version
FreeBSD = nic by device eg em0