The answer is to configure the anycast gateway MAC address. This is required because inter-VNI routing on a Cisco Nexus 9000 relies on a shared anycast gateway MAC across all VTEPs in the VXLAN fabric, enabling the switch to respond to ARP requests for the gateway IP and forward traffic between different VNIs without a traditional routed interface. On the Cisco DCCOR / CCNP Data Center Core 350-601 exam, this concept tests your understanding of VXLAN bridging and routing, often appearing as a trap where candidates mistakenly think a routed port or a unique MAC per SVI is needed. Remember, the command is `fabric forwarding anycast-gateway-mac` under the VLAN interface. A useful memory tip: think "anycast MAC = one MAC for all VTEPs" to avoid the common pitfall of configuring a unique gateway MAC per leaf.
350-601 Network Practice Question
This 350-601 practice question tests your understanding of network. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 configuring VXLAN bridging and routing on a Cisco Nexus 9000 switch. Which configuration is required to enable inter-VNI routing?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Configure anycast gateway MAC.
Inter-VNI routing requires a shared anycast gatewayMAC address across all VTEPs in the same VXLAN fabric. This allows the switch to respond to ARP requests for the gateway IP and forward traffic between different VNIs without relying on a traditional routed interface. The anycast gateway MAC is configured under the VLAN interface (SVI) using the 'fabric forwarding anycast-gateway-mac' command.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Configure a VLAN interface under the bridge domain.
Why it's wrong here
A VLAN interface (SVI) is needed, but not sufficient alone.
✗
Enable ip routing under VRF.
Why it's wrong here
Needed, but does not address VNI routing specifically.
✓
Configure anycast gateway MAC.
Why this is correct
Provides a common gateway MAC across all leaf switches, enabling seamless routing between VNIs.
Related concept
Read the scenario before looking for a memorised answer.
✗
Configure a VRF and associate the VLAN interface to it.
Why it's wrong here
VRF is needed for tenant separation, but not the key for inter-VNI routing.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the misconception that simply enabling IP routing or associating an SVI to a VRF is sufficient for inter-VNI routing, when in fact the anycast gateway MAC is the mandatory configuration that enables the distributed gateway functionality.
Detailed technical explanation
How to think about this question
In VXLAN EVPN fabrics, the anycast gateway MAC (typically 2022.0b22.0b22) is shared across all VTEPs in the same network segment. This enables symmetric routing where the same MAC address is used for the gateway on every leaf, preventing MAC flapping and allowing seamless VM mobility. The 'fabric forwarding anycast-gateway-mac' command must be applied to each SVI that participates in inter-VNI routing, and the SVI must be associated with a VRF that has 'ip routing' enabled.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A help-desk technician troubleshoots why a newly connected PC cannot reach shared printers on the same floor. The cable is good, the switch port is active, but the PC is in VLAN 20 and the printers are in VLAN 10. The uplink trunk only allows VLAN 10. A trunk being up does not mean every VLAN crosses it.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Network — This question tests Network — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Configure anycast gateway MAC. — Inter-VNI routing requires a shared anycast gateway MAC address across all VTEPs in the same VXLAN fabric. This allows the switch to respond to ARP requests for the gateway IP and forward traffic between different VNIs without relying on a traditional routed interface. The anycast gateway MAC is configured under the VLAN interface (SVI) using the 'fabric forwarding anycast-gateway-mac' command.
What should I do if I get this 350-601 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
This 350-601 practice question is part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 350-601 exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.