350-401 Question 116
Select 3Your organization is deploying VXLAN in its data center to provide network scalability and support multi-tenancy. The design includes using VXLAN with EVPN as the control plane. During the deployment, you need to ensure proper communication between VXLAN Tunnel Endpoints (VTEPs) while minimizing flooding in the network. Which of the following configurations are required to achieve this?
- A
Enable MP-BGP EVPN to distribute MAC and IP address information between VTEPs
- B
Configure IGMP snooping to manage multicast group membership for VXLAN traffic
- C
Assign a unique VNID (VXLAN Network Identifier) to each tenant or segment
- D
Configure static unicast entries for all MAC addresses in the VXLAN environment
- E
Enable multicast or unicast replication to handle BUM (Broadcast, Unknown Unicast, and Multicast) traffic
Show answer and explanation
Correct answers: A, C, E
Explanation
VXLAN with EVPN as the control plane requires specific configurations to ensure efficient and scalable operation. MP-BGP EVPN is used to distribute MAC and IP address information dynamically between VTEPs, reducing the need for flooding. VNIDs are necessary for identifying and isolating tenant or segment traffic. Additionally, mechanisms like multicast or unicast replication are required to manage BUM traffic appropriately. IGMP snooping and static unicast entries are not suitable or required in this scenario.
- A. Correct.
Correct: MP-BGP EVPN is required for VXLAN with EVPN as the control plane to dynamically distribute MAC and IP address information between VTEPs, enabling efficient communication.
- B. Incorrect.
Incorrect: IGMP snooping is not directly related to VXLAN with EVPN. While it can optimize multicast traffic in traditional networks, VXLAN EVPN uses more advanced mechanisms for managing multicast and BUM traffic.
- C. Correct.
Correct: VNIDs are essential for VXLAN to distinguish traffic for different tenants or segments. Each VXLAN segment must have a unique VNID to ensure proper traffic isolation.
- D. Incorrect.
Incorrect: Configuring static unicast entries for all MAC addresses is not scalable or practical in a VXLAN environment. VXLAN EVPN uses dynamic learning and MP-BGP to handle address distribution.
- E. Correct.
Correct: VXLAN requires multicast or unicast replication to handle BUM traffic effectively. This ensures proper traffic delivery in the absence of traditional flooding.