hi dynamox ... thanks for the reply .... what I found was  listed blow...   From support .emc.com [URL]  blog [URL]  From Brocade [URL]　
HI experts ... Anybody know a good manual or White Paper or any kind of info about peer zoning ? As I am not sure this exactly .... and not much info about Peer Zoning ..   Let me know if there is any good source !    thanks ! aya 
Peer Zoning information