Exam 300-415 topic 1 question 273 discussion

Actual exam question from Cisco's 300-415

Question #: 273
Topic #: 1

Refer to the exhibit. Cisco SD-WAN is deployed with controllers hosted in a data center. All branches have WAN Edge devices with dual connections to the data center: one via Internet and the other using MPLS. Three branches out of 20 have issues with their control connections on MPLS circuit. The local error refers to Control Connection Failure. Which action resolves the issue?

A. Update the system IP on vManage and then resend it to the controllers.
B. Rectify any issues with the underlay routing configuration.
C. Match the TLOC color on the controllers and all WAN Edge devices.
D. Math certificates for the DTLS connection and Root CA must be installed first on WAN Edge devices.

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Suggested Answer: B 🗳️

by NetArch_Teck at July 17, 2023, 7:09 p.m.

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NetArch_Teck

10 months, 2 weeks ago

The "DCONFAIL" error is a result of an underlying routing issue, according to Cisco white papers, the steps outlined are:- *The next hop route is not reachable *The default gateway is not installed in the RIB (Routing Information Base) *The Datagram Transport Layer Security port is not open. All of the above alludes to routing in the SD-WAN network fabric. Answer = [B] Ref:- https://www.cisco.com/c/en/us/support/docs/routers/sd-wan/214509-troubleshoot-control-connections.html#toc-hId--1851267275

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