300-610 · Question #239
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 plane encapsulat
The correct answer is C. EVPN. EVPN is a modern, standards-based control plane solution that efficiently manages MAC address learning and distribution across data centers, replacing older flood-and-learn mechanisms. It uses BGP signaling to advertise MAC routes, enabling simultaneous updates of remote devices
Question
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 plane 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?
Options
- AEoMPLS
- BOTV
- CEVPN
- DVXLAN
How the community answered
(23 responses)- A26% (6)
- B9% (2)
- C52% (12)
- D13% (3)
Explanation
EVPN is a modern, standards-based control plane solution that efficiently manages MAC address learning and distribution across data centers, replacing older flood-and-learn mechanisms. It uses BGP signaling to advertise MAC routes, enabling simultaneous updates of remote devices and consistent MAC learning, effectively preventing MAC flapping and loops. EVPN supports seamless Layer 2 extension required for VM migration between data centers while operating over any IP-based underlay (IPv4 or IPv6) and can adapt to different data plane encapsulations without losing MAC route visibility and synchronization. Being an open standard, EVPN implementations are available across multiple vendors, preventing vendor lock-in. EVPN paired often with VXLAN encapsulation provides a scalable, efficient Data Center Interconnect solution.
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