[Questions and Support] LAN traffic monitoring

Question Hi folks and many thanks for such a great software! I configured Maltrail for one of my small networks for testing purposes. For now it's running on NAS. Server part in docker compose. Agent as another container on the same NAS and there is a connectivity between them. No issues there. My question is how should I configure traffic monitoring? Should I install a second agent to my router? It's not powerful at all but it support Docker (4 core + 1Gb RAM). From what I can see, both agent and server require like min. 2Gb RAM to handle new records. What are your suggestions and best practices? Router with an agent or traffic mirroring?

And the second question. Does maltrail store data between system reboots? Or it woks only with real time info and that's it?

Thanks in advance