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JN0-460 · Question #6

Which two statements are correct about the EVPN-VXLAN control plane? (Choose two.)

The correct answer is B. The control plane learns the MAC addresses of end-user devices. C. The control plane learns the IP addresses of end-user devices. In an EVPN-VXLAN fabric, the control plane operates over BGP EVPN and is responsible for distributing endpoint reachability information (MAC and IP) among VTEPs. The data plane, by contrast, performs encapsulation and forwarding. "The EVPN control plane uses BGP to exchange MAC…

Juniper Mist Distributed Enterprise Networks Solutions

Question

Which two statements are correct about the EVPN-VXLAN control plane? (Choose two.)

Options

  • AThe control plane encapsulates the traffic.
  • BThe control plane learns the MAC addresses of end-user devices.
  • CThe control plane learns the IP addresses of end-user devices.
  • DThe control plane rewrites the destination MAC address of the packet.

How the community answered

(26 responses)
  • A
    19% (5)
  • B
    73% (19)
  • D
    8% (2)

Explanation

In an EVPN-VXLAN fabric, the control plane operates over BGP EVPN and is responsible for distributing endpoint reachability information (MAC and IP) among VTEPs. The data plane, by contrast, performs encapsulation and forwarding. "The EVPN control plane uses BGP to exchange MAC and IP address reachability information between VTEPs, enabling efficient forwarding and loop prevention without relying on flood-and- learn behavior." Option A: Incorrect -- encapsulation occurs in the data plane, not the control plane. Option B: Correct -- the control plane distributes MAC-to-VTEP mappings. Option C: Correct -- the control plane also distributes IP-to-MAC associations (Type 2 and Type 5 EVPN routes). Option D: Incorrect -- the control plane does not alter packet headers.

Topics

#EVPN-VXLAN#control plane#MAC learning#IP learning

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