Network emulation with two PCs

[Marius Adams]

Hello community,

I want to build a test-setup where I run a ns-3 simulation in emulation mode but I am unsure, if this is event going to work. The setup I have in mind is as follows:

 On PC_01 There is a native App running (maybe in a VM) and generation messages. This messages are sent to the ns- 3 simulator which is running on the same PC (but maybe in another VM). In the simulation, the messages traverse a 5G protocolstack and a 5G network which consists of a gNB and all the things a 5G network needs (I have in mind to use 5G-LENA). The messages then get received in the simulation by a second UE so they traverse the 5G stack the other way and then get sent over a real ethernet connection to a second pc (PC_02). On PC_02 the messages get received by a native application.

I have made a picture to demonstrate this better.

Do you think this is possible? 

[Tom Henderson]

Yes, in general, this kind of setup should be possible but I don't know of any worked example of how to split the UE in this way.

Please keep in mind that you will want to build your ns-3 in optimized mode for best performance and you need to make sure that the ns-3 simulation portion of the setup doesn't exhaust the resources of the PC in trying to run in real-time (LTE simulations can be slow depending on number of nodes and complexity of the channel model).

- Tom

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