VXLAN Interview Questions

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  1. Out of below given options, what is the primary goal of VXLAN (Virtual Extensible LAN)?
    • Enables containers/virtual instances to communicate with each other
    • Implements and manages firewall rule base and troubleshoots connectivity issues
    • Routes traffic across a specific network path and provides segregation of traffic
    • Routes tables and transmits overlay packets
  2. How many IDs can be assigned to a VXLAN – Virtual Extensible LAN at any given time?
  3. What benefit does VXLAN offer to VLAN?
  4. Which statement about VXLAN is true?
    • VXLAN uses a UDP destination port 4987.
    • VXLAN adds an additional 64 bytes worth of headers.
    • A VTEP is virtual/physical device that maps end devices to VXLAN segments.
    • Devices terminating VXLAN tunnels are known as VTEBs.
  5. What is VXLAN?
  6. Explain Virtual Extensible LAN forwarding
  7. What are changes required in network bandwidth to accommodate VXLAN?
  8. Describe LAN Flood and learn gateway?
  9. Enlist the benefits of VXLAN?
  10. What are Cisco vPC VTEP Configuration Best Practices?
  11. Explain the concept of Head-end-Replication?
  12. What is VXLAN gateway?
  13. Describe the characteristics of VXLAN Loop Prevention?
  14. What is VXLAN EVPN?
  15. Describe about VXLAN Tunnel End-point?
  16. What is VXLAN Network Identifier (VNI)?
  17. Describe Network-wide scoped VNIs?
  18. Describe locally assigned VNIs?
  19. What is VXLAN Routing?
  20. Describe VXLAN Manager, L2RIB and MFIB?
  21. What is the need of VXLAN VNI mapping to IP multicast?
  22. What is an overlay network?
  23. What is VXLAN BUM traffic and its transport mechanism?
  24. What is VXLAN QoS?
  25. Describe and illustrate Spine-and-Leaf Architecture.
  26. Describe BUD node topology?
  27. What are limitations of VXLAN?
  28. What is function of VNI-VLAN Map?
  29. What does the below table depict?
  30. Explain direct routing wrt below diagram?

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