350-601 Network Practice Question
Which three EVPN route types are essential for VXLAN EVPN operation in a typical data center fabric? (Choose three.)
⚠ Common exam trap
Cisco often tests the misconception that Type-1 and Type-4 are required for all VXLAN EVPN deployments, but they are only mandatory for multi-homing (EVPN-MH) or MPLS interworking, not for a typical single-homed data center fabric.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Type-3 (Inclusive Multicast Ethernet Tag)
Type-3 (Inclusive Multicast Ethernet Tag) routes are essential for VXLAN EVPN because they enable BUM traffic replication across the underlay network by advertising the VNI and multicast group mapping, allowing VTEPs to join the correct multicast tree for flooding unknown unicast, broadcast, and multicast frames.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Type-3 (Inclusive Multicast Ethernet Tag)
Why this is correct
Required for BUM traffic forwarding.
- ✓
Type-2 (MAC/IP Advertisement)
Why this is correct
Required for host reachability.
- ✗
Type-4 (Ethernet Segment)
Why it's wrong here
Used for multi-homing, not essential for basic fabric.
- ✓
Type-5 (IP Prefix Advertisement)
Why this is correct
Required for exchanging IP prefixes.
- ✗
Type-1 (Ethernet Auto-Discovery)
Why it's wrong here
Used for multi-homing, not essential for basic fabric.
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