Cisco SD-WAN Multi-Region Fabric Capability
Short answer
D Cisco SD-WAN Multi-Region Fabric provides end-to-end encryption for inter-region traffic to secure communications across geographic boundaries.
Question
Key Takeaways
The question tests knowledge of Multi-Region Fabric's unique value proposition: securing traffic across geographic regions with IPsec encryption that spans vSmart controllers.
This page explains the primary security capability of Cisco Catalyst SD-WAN Multi-Region Fabric, which is end-to-end encryption for inter-region traffic. It clarifies why this feature distinguishes Multi-Region from standard single-region deployments.
Common mistake: Many learners select 'end-to-end SLA-aware routing' (A) because it is a core SD-WAN feature, but they fail to recognize that Multi-Region specifically adds encryption as its differentiator for cross-region communication.
Expert Analysis
Why the Answer Is Correct
Cisco SD-WAN Multi-Region Fabric is designed to extend the SD-WAN overlay across multiple geographic regions while maintaining security. The key capability it provides is end-to-end encryption for inter-region traffic using IPsec tunnels between vSmart controllers in different regions. This ensures that data traversing the backbone between regions remains encrypted, addressing security concerns for distributed enterprises.
Why the Other Options Are Wrong
End-to-end SLA-aware routing (A) is a fundamental feature of all Cisco SD-WAN deployments, not specific to Multi-Region Fabric. Overlay support for IP multicast (B) is generally not a supported or primary feature in SD-WAN overlays. Assignment of a single vSmart (C) is incorrect because Multi-Region typically involves multiple vSmart controllers per region for scalability and redundancy, not a single controller handling all regions.
Community Comment Notes
Community consensus strongly supports option D. Users referenced official Cisco documentation highlighting that Multi-Region Fabric enforces security through end-to-end encryption of inter-region traffic. One user noted the importance of this security layer for connecting disparate regional networks securely.
Official Reference
https://www.cisco.com/c/en/us/td/docs/routers/sdwan/configuration/mrf/mrf-guide/h-sd-wan-basics.pdf
This link opens the official vendor documentation in a new tab.
Exam Strategy
When studying Multi-Region Fabric, focus on the security implications of connecting multiple regions. Remember that while basic SD-WAN features like SLA routing apply everywhere, Multi-Region adds the complexity and requirement for encrypted inter-region transport.
Frequently Asked Questions
Does Multi-Region Fabric use the same vSmart for all regions?
Is SLA-based routing available in Multi-Region?
Community Votes
100% of anonymous learners picked answer D. Votes are pick records left by other test-takers — they are not the verified answer.
Discussion 3 contributions
Compiled from public community threads and reader submissions, lightly edited for clarity. Handles and vote tallies are shown as recorded, and comments reflect the views of individual contributors.
From public community threads 3
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Knowledge33 👍 2 Answered Dhttps://www.google.com/url?sa=t&source=web&rct=j&opi=89978449&url=https://www.cisco.com/c/en/us/td/docs/routers/sdwan/configuration/mrf/mrf-guide/h-sd-wan-basics.pdf&ved=2ahUKEwjSu_aKpsSDAxXQVKQEHbkOAYEQFnoECAwQBg&usg=AOvVaw02jBfc9Au5LLq6oZ4-YiGw
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Gycu 👍 1 Answered DD Enforce security with end-to-end encryption of inter-region traffic https://www.cisco.com/c/en/us/solutions/collateral/enterprise-networks/sd-wan/nb-06-sd-wan-multi-fabric-aag-cte-en.html
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Outlaw_87 👍 1 Answered DD is correct.
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