xtivreg postestimation commands for endogeneity, week instrument and over-identification test

[Souryabrata Mohapatra]

Hi,

I'm solving simultaneous equations with endogenous variable, hence choose 2sls.
I've panel data.
So I thought I must go with xtivreg command.
I checked the results of pooled 2sls, FE 2sls, RE 2sls.
But for FE 2sls and RE 2sls, I'm not able to find post estimation command to test: endogeneity, week instrument and over-identification.
Can you tell me where I can find the commands?

Also, do you think xtivreg2 is a better option to go with?

Or is it simple ivreg2?

I aim to compare results at the end (including post estimation test results) with esttab.

Best,

[Souryabrata Mohapatra]

Dear Jeff Wooldridge and Carlo Lazzaro,
Can you please help me out?
Awaits your reply,
Regards,