ICX 7250/7150. Broadcast limit doesn’t work.

Hi team!I test broadcast/multicast/unknown-unicast limits on ICX7250 and ICX7150 (hw ver. 8.0.9).I’ve configured ports as:    interface ethernet 1/1/1     spanning-tree 802-1w admin-edge-port     broadcast limit 96 kbps     multicast limit 400 kbps     unknown-unicast limit 96 kbps     stp-bpdu-guardBut, nothing happens! I genarate broadcast traffic, but port works normally in this moment.Can anyone come across this problem?