HA Check point management servers services

[Myo_Min_Zaw]

HI Expert,

What is services (ports) are communicating in between HA Check point management servers. Base on my understand is SIC connection only and need to open ports (TCP-18191, TCP-18192, TCP-18211)? That's all the ports need to open in-between each other?

Please kindly advice. I refer to this document as per attach file.

Thanks.

Myo Min Zaw.