Latency of ULCL in Free5GC

Hello everyone,

I currently deployed a free5GC v3.0.6 environment with ULCL scenario, and I found that the latency of pinging from UE to MEC is quite high, and here is my result:


I analyzed where does the latency comes from, I noticed that most of the delay is conducted from the NAT mechanism of I-UPF, which converting source IP address from UE to I-UPF itself. :thinking:

Referenceed vedio: Environment setup of multiple SMF, DNN, and UPF


Thanks for your report,
Have a nice day!