how to wake up amt

Hi,

From the doc,  to wake up AMT ME, it is suggested to wait 25s.

https://software.intel.com/en-us/wake-up-amt

First, I am try to wake up AMT ME using ICMP pings, does that means I have to wait 25s before send further request?

Secondly should I use arping send arp request to AMT ME or ping AMT ME like 5 times, which one is better?

BTW, this doc is a little old, do you have any updates on this topic? 

B.R

Tan