An engineer must interconnect two data centers to support the dynamic virtual machine migration. The data centers are currently interconnected using an IPv4 network. However, the data piano encapsulation of the underlay network is expected to change next year. To meet the VM migration requirement, the solution must track MAC route changes, update all other remote devices simultaneously and prevent excessive MAC flapping with broadcast and unicast traffic loops. The company must also use networking equipment from different manufacturers to prevent vendor-locking. Which solution meets these requirements?