Dns, Diameter, virtualization, Smf, Ims, PGW, cloud concepts, data interpretation, SGW, trace analysis, PCRF, EPDG, SGSN-MME, 5GSA, AMF, packet core surrounding nodes, Ggsn, AAA, Hss, Volte, Network Tools, Dra, Nokia architectures, SIP, automation technologies, vendor-specific packet core nodes, packet core technologies