This 350-601 practice question tests your understanding of 350-601 exam topics. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
An engineer is deploying a new VXLAN fabric and must ensure that the control plane can handle MAC advertisement without flooding. Which TWO protocols can be used for control plane learning in VXLAN? (Select two.)
IGMP Snooping
Why wrong: IGMP Snooping is for multicast group management.
OpenFlow
Why wrong: OpenFlow is not typically used for VXLAN control plane.
VXLAN data plane learning
Why wrong: Data plane learning uses flooding and is not recommended.
MP-BGP EVPN
EVPN is the control plane for VXLAN that advertises MAC/IP routes.
OSPF
Why wrong: OSPF is an underlay routing protocol.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
MP-BGP EVPN
MP-BGP EVPN is the standard control plane for VXLAN. OpenFlow is a software-defined networking protocol but not commonly used in production VXLAN fabrics. Other options are data plane or underlay protocols.
Key principle: OSPF neighbour adjacency depends on matching area, hello/dead timers, network type, and authentication — IP reachability alone is not enough.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
IGMP Snooping
Why it's wrong here
IGMP Snooping is for multicast group management.
OpenFlow
Why it's wrong here
OpenFlow is not typically used for VXLAN control plane.
VXLAN data plane learning
Why it's wrong here
Data plane learning uses flooding and is not recommended.
MP-BGP EVPN
Why this is correct
EVPN is the control plane for VXLAN that advertises MAC/IP routes.
Related concept
OSPF neighbours must agree on key parameters.
OSPF
Why it's wrong here
OSPF is an underlay routing protocol.
Common exam traps
OSPF neighbour formation depends on matching areas, timers, network type, authentication and passive-interface behaviour. Do not choose an answer only because the devices can ping.
Detailed technical explanation
OSPF questions usually test the details that control adjacency and route selection. Read the neighbour state, area, router ID and interface configuration before deciding what is wrong.
Key takeaway
OSPF neighbour adjacency depends on matching area, hello/dead timers, network type, and authentication — IP reachability alone is not enough.
Real-world example
A network engineer at a university connects two campus buildings via a fibre link. Both routers run OSPF, but no adjacency forms — even though both routers can ping each other. The engineer finds one router is in area 0 and the other in area 1. OSPF adjacency requires matching area numbers, hello/dead timers, and network type. IP reachability alone is not enough.
What to study next
Review OSPF neighbour requirements — matching area type, hello and dead timers, network type, stub flags, and authentication. Study show ip ospf neighbor states (INIT, 2-WAY, FULL). Then practise related 350-601 OSPF questions on adjacency and route selection.
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FAQ
OSPF neighbours must agree on key parameters.
The correct answer is: MP-BGP EVPN — MP-BGP EVPN is the standard control plane for VXLAN. OpenFlow is a software-defined networking protocol but not commonly used in production VXLAN fabrics. Other options are data plane or underlay protocols.
Review OSPF neighbour requirements — matching area type, hello and dead timers, network type, stub flags, and authentication. Study show ip ospf neighbor states (INIT, 2-WAY, FULL). Then practise related 350-601 OSPF questions on adjacency and route selection.
OSPF neighbours must agree on key parameters.
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Last reviewed: Jul 4, 2026
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