Policing vs. Queueing

Does the PMP rate limiting use policing or queueing? Is it configurable?

It is mostly policing.  There is queing involved, but not to invoke the effect of shaping.  The only configurable part of it is the MIR/Max Burst/Burst Bucket components.   Here is a link to a whiepaper done on how our bursting works.  http://www.cambiumnetworks.com/resources/pmp-450-maxburst/