PSR,ASR,TAU,RRC,S1-X2 Ho Signaling Load Analysis
In LTE, control plane messages and user plane traffic can be traced from various interfaces. To trace all control messages related to call establishment following interfaces should be traced: S1‐MME, S6a, and S11, tools such as Wireshark, and others can be easily connected to monitor, these interfaces through a network hub or router LTE network element signaling load per application. Reference:-LTE Optimization Engineering Handbook by Xincheng Zhang