What is relation between user throughput and APN-AMBR?

Hi Experts,
What is relation between user throughput and APN-AMBR?

Throughput is limited by AMBR.

Yes. @RFSpecialist, is it set on Core side?

Yes. At PGW.

In HSS per IMSI based.

PGW enforces it. UE-AMBR and APN-AMBR in HSS profiles per IMSI.

anybody knows what is the difference btw extended and extended -2?
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