A network engineer is troubleshooting an EVPN-VXLAN fabric where a remote MAC address is not being learned. The engineer checks the BGP EVPN routes and sees the Type 2 route for the MAC, but the MAC is not installed in the local MAC table. What is the most likely cause?

The route target of the received route does not match the import route target of the EVPN instance.

The remote PE is not sending the Type 2 route.

The local PE has MAC learning disabled.

The VXLAN VNI is not configured on the local PE.

Which BGP EVPN route type is used to advertise a host's MAC address along with its IP address to remote PEs?

Inclusive Multicast Ethernet Tag (Type 3)

Ethernet Auto-Discovery (Type 1)

When a PE receives a unicast frame destined for a MAC address that it has learned via BGP EVPN, how does it forward the frame?

It drops the frame because unicast traffic is not supported in EVPN

It sends the frame to the local gateway router for routing

It floods the frame to all other PEs in the EVPN instance

It encapsulates the frame with the appropriate tunnel encapsulation (e.g., VXLAN or MPLS) and sends it to the next hop PE

In EVPN multihoming, what is the role of the designated forwarder (DF)?

To perform MAC learning for the segment

To advertise all MAC addresses for the segment

To handle all unicast traffic for the segment

To forward BUM traffic to the multihomed Ethernet segment

Juniper NetworksCertified Professional, Service Provider Routing and Switching (JNCIP-SP)

Domain 7Objective 6

EVPN Traffic Flow and MAC Learning/distribution JN0-664 Practice Questions (Page 5)

Part of the Layer 2 VPNs domain, which makes up ~16% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~6–10 in this domain), expect 1–1 from this objective — we provide 33 practice questions to prepare you well beyond it. (estimate)

33questions here

7free pages

10concepts

Questions 21–25

21application · medium
A network engineer is verifying EVPN MAC synchronization in a multi-PE environment. Which command output would show the MAC addresses learned from remote PEs via BGP?
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22application · medium
A network engineer is troubleshooting an EVPN-VXLAN fabric where a remote MAC address is not being learned. The engineer checks the BGP EVPN routes and sees the Type 2 route for the MAC, but the MAC is not installed in the local MAC table. What is the most likely cause?
Select an answer first
23foundation · easy
Which BGP EVPN route type is used to advertise a host's MAC address along with its IP address to remote PEs?
Select an answer first
24foundation · easy
When a PE receives a unicast frame destined for a MAC address that it has learned via BGP EVPN, how does it forward the frame?
Select an answer first
25foundation · easy
In EVPN multihoming, what is the role of the designated forwarder (DF)?
Select an answer first

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