Refer to the exhibit. Which result occurs when PE1 learns a new MAC address and all three PEs are enabled with EVPN native?

Question

Exhibit

Options

• AA system notification is sent to the network administrator that triggers the manual configuration of
• BThe new MAC address is sent by BGP to PE2 and PE3 as a Type 2 BGP route.
• CThe MAC address is entered into the CAM table and is classified for use on the native VLAN
• DThe MAC address is entered into the CAM table only if it is learned on the native VLAN.

• A
  15% (6)
• B
  73% (29)
• C
  8% (3)
• D
  5% (2)

Explanation

In EVPN native deployments, PE routers use BGP as the control plane to distribute MAC reachability information - when PE1 learns a new MAC address from a locally attached device, it immediately advertises it to all other PEs (PE2, PE3) via a BGP EVPN Type 2 (MAC/IP Advertisement) route, eliminating the need for data-plane flooding. Option A is wrong because EVPN is an automated control plane; manual configuration would defeat its entire purpose. Option C is a half-truth - the MAC does enter the CAM table, but the defining behavior of EVPN is the BGP advertisement, and "classified for native VLAN" is a fabricated and irrelevant detail. Option D is wrong because EVPN learns MACs across all configured VLANs/VNIs, not exclusively on the native VLAN.

Memory tip: Think of EVPN as "BGP for MACs" - just as BGP advertises IP prefixes with route types, EVPN advertises MAC addresses using Type 2 routes. If you remember the route types: Type 2 = MAC/IP, Type 3 = multicast/BUM, you'll nail EVPN control-plane questions every time.

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