What are the consequneces if I change the processor ethernet interface from CNA to corporate Lan under the configure services option. I currently have an S8400 that is attached to the ipsi board with the little cross over cable and I designated that as cna with the default addresse of 198.152.254.201(s8400) and 198.152.254.202(ipsi). The reason why I am asking this is because I am configuring an S8300 LSP that is instructed to register with ip address 192.168.16.254(clan mainsite) and sync with PE port, but from my limited understanding the PE port presently is joined to the ipsi????