I am working on a project for data center migration. I would like to know the design solutions and their comparisons for DCI.
1)Which solution is best: Using L2 extension over L3 or using L3 to interconnect two DCs.
2) Retaining the L2 domains at each data center or using IP?
Can anybody guide me to the link or PDF which talks about the pro's and con's of each solution?
thanks in advance,