Let us run a simple simulation where an application (CBR) is configured to flow from a Wired node in the PDN to a UE
The packet trace would show CBR as PACKET_TYPE when this packet is flowing in the Packet Data Network, and it comes with a unique PACKET_ID
This changes to RLC_SDU at the eNB.
All this happens in the function fn_NetSim_LTE_RLC_FormRLCSDU ( ) which is part of RLC.c file in LTE Project
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