Hi Paul,

thanks for your reply and suggestions. I think we have to consider the NAT. But dont know its the best practice for a huge servers. around 160 servers are moving.

Currently central migration team is using OTV link for server migration and will going to terminate this link once completely migrated. then we have to switch over the user traffic via our MPLS link.

Is there any L2 tunnelling like OTV over our existing MPLS possible?