I really appreciate for your prompt response.
I got lot of information from your answer.
Here I would like to share some more information to clarify my doubts for the same.(As per CentOS )
There are 4 network Interfaces, how can we find which one is Primary.
I got some information for the above question, but I am not much satisfied with the answers given in that.
Please go through the below link for detailed information for the same.
Thanks in Advance