EX3300 BW policer Config

Hello Community, 

     I am currently setting up a BW policer in a EX3300 running 12.3R6.6. I've set a Policer in a Layer 2 port as a test before implemnting it in a L3 Port. 

the config is the following:

filter TEST_1 {
term 1 {
from {
interface ge-0/0/21.0;
}
then {
accept;
policer TEST
}
}
}
}
policer TEST{
if-exceeding {
bandwidth-limit 32m;
burst-size-limit 2m;
}
then discard;
}

I would like to know if this would work and will decrement the BW from 32Mbps to 2Mbps and then drop the packets and if so. Is there any way within junOS to Test the functionability of the policer?

Thanks