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350-601 · Question #595

Refer to the exhibit. A VXLAN data center fabric has three hosts mapped to three different VLANs. Ingress and egress VTEPs perform Layer 2 and Layer 3 lookups. VLAN 100 is mapped to VNI 1010 on…

The correct answer is B. Enable prefix-based routing under interface vlan of L3 VNI. In a VXLAN fabric, Layer 2 VNIs (Virtual Network Identifiers) map VLANs across the overlay network, while Layer 3 VNIs enable inter-VLAN communication using VXLAN routing. 1. Mapping VLANs to VNIs: - VLAN 100 (Host-1) is already mapped to VNI 1010. - VLAN 200 (Host-2) must be…

Network

Question

Refer to the exhibit. A VXLAN data center fabric has three hosts mapped to three different VLANs. Ingress and egress VTEPs perform Layer 2 and Layer 3 lookups. VLAN 100 is mapped to VNI 1010 on Leaf1. Which set of actions allow communication between Host-1 and Host-2?

Exhibit

350-601 question #595 exhibit

Options

  • AMAP VLAN 200 to Layer 2 VNI 2020 on Leaf2.
  • BEnable prefix-based routing under interface vlan of L3 VNI.
  • CSuppress ARP for Layer 2 VNI under interface NVE.
  • DAttach Test_Telco_VRF to Layer 3 VNI 1010.

How the community answered

(35 responses)
  • A
    6% (2)
  • B
    83% (29)
  • C
    9% (3)
  • D
    3% (1)

Explanation

In a VXLAN fabric, Layer 2 VNIs (Virtual Network Identifiers) map VLANs across the overlay network, while Layer 3 VNIs enable inter-VLAN communication using VXLAN routing. 1. Mapping VLANs to VNIs: - VLAN 100 (Host-1) is already mapped to VNI 1010. - VLAN 200 (Host-2) must be mapped to a new Layer 2 VNI (e.g., VNI 2020) on Leaf2 to ensure Layer 2 encapsulation across VXLAN. 2. Enabling Prefix-Based Routing: - Since Host-1 (192.168.1.1/24) and Host-2 (192.168.2.1/24) are in different subnets, VXLAN routing (L3 VNI) is required. - Enabling prefix-based routing under the interface VLAN of the L3 VNI ensures that inter- VLAN traffic is forwarded correctly. This ensures that Host-1 can communicate with Host-2 through the VXLAN fabric.

Topics

#VXLAN EVPN#Inter-VNI Routing#Layer 3 VNI#Data Center Networking

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