300-415 Question #114: Real Exam Question with Answer & Explanation

The correct answer is D: custom control (route and TLOC). To enable direct communication between two specific sites within an existing hub-and-spoke topology, an administrator must configure a custom centralized control policy that manipulates routes and TLOCs.

Policies

Question

Refer to the exhibit. An administrator is configuring a policy in addition to an existing hub-and-spoke policy for two sites that should directly communicate with each other. How is this policy configured?

Options

Ahub-and-spoke
Bmesh
Cimport existing topology
Dcustom control (route and TLOC)

Explanation

To enable direct communication between two specific sites within an existing hub-and-spoke topology, an administrator must configure a custom centralized control policy that manipulates routes and TLOCs.

Common mistakes.

A. Configuring another 'hub-and-spoke' policy would maintain or reinforce the existing indirect communication model through the hub.
B. A 'mesh' policy would enable direct communication between all spokes, which is more extensive than the requirement for only two specific sites.
C. 'Import existing topology' is a functional step in vManage for policy creation but not a policy type that enables specific direct spoke-to-spoke communication paths.

Concept tested. SD-WAN centralized control policies for direct spoke-to-spoke

Reference. https://www.cisco.com/c/en/us/td/docs/routers/sdwan/configuration/sdwan-xe-gs-book/m-centralized-control-policy.html

Topics

#SD-WAN policies#Control policies#Hub-and-spoke#Direct spoke-to-spoke

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