L2NFAPI.md



      L2 nFAPI Simulator Usage
    
  
This simulator allows to test L2 and above Layers using the nFAPI interface.
The UE executable is able to "simulate" multiple UEs in order to stimulate the scheduler in the eNB.
This simulator is available starting the v1.0.0 release on the master branch.
2022/03/08: CAUTION, THIS TUTORIAL IS NO LONGER VALID on the develop branch after the 2022.w01 tag.
2022/03/08: CAUTION, THE LAST VALID TAG on develop branch is 2021.w51_c.
Currently the Continuous Integration process is validating this simulator the following way:

the LTE modem executable is run on one host (in our CI deployment it is a Xenial Virtual Machine)
the UE(s) modem executable is run on another host (in our CI deployment it is also a Xenial Virtual Machine)
We are testing:

in S1 mode (ie we are connected to a 3rd-party EPC)
in noS1 mode (no need for an EPC)


Normally it should be fine to run both executables on the same host using the loopback interface to communicate. But we are not guaranting it

With S1 -- eNB and UE on 2 hosts
No S1 -- eNB and UE on 2 hosts

2022/03/08: Starting the 2022.w01 tag on the develop branch, the L2 nFAPI simulation is using a proxy.
A tutorial is available on the EpiSci GitHub Repository.
This proxy allows to perform L2 nFAPI simulator for:

LTE
5G-NSA
5G-SA

Another tutorial for 5G SA mode with 1 User is available here.

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