[j-nsp] Policer burst-size-limit, can someone please explain?

[Judah Scott]

Is there a document that can explain the attached code block for us?  In
case the screen shot isn't clear, I am basically just sending a single-shot
of traffic (the packets are sent over 1 second) with, or without, a baseline
constant traffic which is below the policed rate.

Questions I have are:
Does "bandwidth-limit" include Inter-frame Gap?  Does it include L2 header?
What does the "burst-size-limit" (MBS) actually do because looking at my
attached gif it doesn't seem to have any effect on bursts.  No matter what I
set the MBS to I lose packets (not shown but the results are identical for
100g MBS as the rest of the lines in the file).
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firewall {
    policer 1 {
        if-exceeding {
            bandwidth-limit 10m;
            burst-size-limit 3932160;
        }
        then discard;
    }
}
interfaces {
    ge-4/1/1 {
        vlan-tagging;
        encapsulation extended-vlan-vpls;
        unit 1 {
            vlan-id 1;
            family vpls {
                policer {
                    output 1;
                }
            }
        }
    }
}