A service provider hosts multiple tenants on a shared EVPN-VXLAN fabric. Each tenant has its own VXLAN network identifier (VNI). The provider is concerned that MAC addresses from different tenants could collide in the BGP route table. Which mechanism ensures that the same MAC address from different tenants remains unique in the control plane?

Ethernet Segment Identifier (ESI)

In EVPN, how does the ESI contribute to split-horizon forwarding on a multi-homed segment?

By assigning a unique VNI to each segment

By preventing a PE from sending BUM traffic back to the segment it originated from

By enabling the use of multiple VNIs on the same segment

By selecting a single designated forwarder for all traffic

A large data center has two spine switches and four leaf switches. Each leaf is dual-homed to both spines. The network team wants to load-balance east-west traffic across the spines. They have enabled EVPN multipath, but traffic is still using a single spine. Which additional configuration is most likely required?

Assign a unique route distinguisher to each spine.

Configure a different ESI on each leaf's uplink to the spines.

Ensure that the BGP next-hop is set to the leaf's loopback address and that both spines advertise equal-cost paths.

Use a different route target for each spine's routes.

Juniper NetworksCertified Specialist, Mist AI Wired (JNCIS-MistAI)

Domain 5Objective 2

EVPN Control Plane JN0-460 Practice Questions (Page 1)

Part of the Campus EVPN-VXLAN domain, which makes up ~11% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~4–7 in this domain), expect 1–2 from this objective — we provide 21 practice questions to prepare you well beyond it. (estimate)

21questions here

5free pages

5concepts

Questions 1–5

1application · medium
A service provider hosts multiple tenants on a shared EVPN-VXLAN fabric. Each tenant has its own VXLAN network identifier (VNI). The provider is concerned that MAC addresses from different tenants could collide in the BGP route table. Which mechanism ensures that the same MAC address from different tenants remains unique in the control plane?
Select an answer first
2application · medium
An enterprise is deploying EVPN-VXLAN to interconnect multiple sites. They need to advertise host IP prefixes (not just MAC addresses) across the fabric to enable optimal routing. Which EVPN route type should they use?
Select an answer first
3foundation · easy
In EVPN, how does the ESI contribute to split-horizon forwarding on a multi-homed segment?
Select an answer first
4expert · hard
A large data center has two spine switches and four leaf switches. Each leaf is dual-homed to both spines. The network team wants to load-balance east-west traffic across the spines. They have enabled EVPN multipath, but traffic is still using a single spine. Which additional configuration is most likely required?
Select an answer first
5expert · hard
Two leaf switches are multi-homed to the same access switch using EVPN. The network team wants to ensure that BUM traffic from the access switch is not duplicated back to the access switch by both leaves. Which mechanism in EVPN prevents this duplication?
Select an answer first

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EVPN Control Plane JN0-460 Practice Questions (Page 1)

Questions 1–5

An enterprise is deploying EVPN-VXLAN to interconnect multiple sites. They need to advertise host IP prefixes (not just MAC addresses) across the fabric to enable optimal routing. Which EVPN route type should they use?

In EVPN, how does the ESI contribute to split-horizon forwarding on a multi-homed segment?

Two leaf switches are multi-homed to the same access switch using EVPN. The network team wants to ensure that BUM traffic from the access switch is not duplicated back to the access switch by both leaves. Which mechanism in EVPN prevents this duplication?

Keep studying — Campus EVPN-VXLAN