QuestionQ36

Network Virtualization

You must provide tunneling in the overlay that supports multipath capabilities.

Which two protocols provide this function?

Choose two
  • A MPLSoGRE
  • B VXLAN
  • C VPN
  • D MPLSoUDP
Explanation

MPLSoUDP uses the UDP header’s source port as an entropy field, allowing IP underlay devices to perform fine-grained ECMP load balancing. VXLAN supports equal-cost multipath next hops for overlay forwarding. MPLSoGRE has limited load-balancing support because it relies on devices recognizing the GRE key field.

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