> So I will have > /sys/class/net/eth0/phydev/leds/eth0:green:activity > | | > symlink | > | > symlink > > and I will also have > /sys/class/leds/eth0:green:activity > | > symlink So this forces the name to be globally unique, not netns unique. So you cannot use the interface name alone. i don't think the name is actually too important. You are going to find it via /sys/class/net/eth0/phydev/leds/eth0:green:activity so the proposal of an incremental number works. Andrew