MSS Huawei Core Network (2G/3G)

[MMAN]

Dear Huawei Expert

Could you please share the following for MSS Huawei Core Network (2G/3G):-

-MSS Huawei Core Network Architecture
-Important KPI's and Analysis from MSS level
-How i can get Core network KPIs 2G/3G ( Congested Trunks, Processor Overloads, Call completion rates, Answer to Seizure Ratio) using M2000-MSS and how i put it all in one chart

If need to calculate the KPI's please provide the formula
If somebody prepared Core network KPIs Analysis report before could you please share