300-415 Question #118: Real Exam Question with Answer & Explanation

The correct answer is D: lowest to highest sequence number. Centralized control policies in Cisco SD-WAN are configured with match-action pairs evaluated in order from the lowest to the highest sequence number.

Policies

Question

A network administrator is configuring a centralized control policy based on match action pairs for multiple conditions. Which order must be configured to prefer Prefix List over TLOC and TLOC over Origin?

Options

Ahighest to lowest sequence number
Bnonsequential order
Cdeterministic order
Dlowest to highest sequence number

Explanation

Centralized control policies in Cisco SD-WAN are configured with match-action pairs evaluated in order from the lowest to the highest sequence number.

Common mistakes.

A. Processing from highest to lowest sequence number would reverse the intended precedence for policy evaluation.
B. A nonsequential order would lead to unpredictable policy application and is not how Cisco SD-WAN control policies are evaluated.
C. While the order is deterministic, this option does not specify the direction of evaluation (lowest to highest sequence number) which is crucial for precedence.

Concept tested. Centralized control policy sequence evaluation

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 Control Policy#Policy Sequence Number#Route Preference

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