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300-415 · Question #396
300-415 Question #396: Real Exam Question with Answer & Explanation
To provision on-demand tunnels as a backup connection, the on-demand tunnel feature must be enabled at the system level, and an idle-timeout period must be configured for tunnel teardown.
WAN Edge Router Deployment
Question
QUESTION 452 Refer to the exhibit. A Cisco SD-WAN network carries traffic for several departments and over 1200 users with several applications at site A and site B branches over the MPLS1 circuit. An engineer is provisioning a higher bandwidth on-demand metro circuit as a backup connection. Which two configurations must the engineer apply to implement the on-demand tunnels? (Choose two.)
Options
- Asdwan service TE vrf global exit omp no shutdown ecmp-limit 16
- Bomp no shutdown ecmp-limit 16 system on-demand enable on-demand idle-timeout 10
- C
- D
Explanation
To provision on-demand tunnels as a backup connection, the on-demand tunnel feature must be enabled at the system level, and an idle-timeout period must be configured for tunnel teardown.
Common mistakes.
- A. This option includes
service TE vrf global(unrelated to on-demand tunnels),omp no shutdown(default OMP behavior), andecmp-limit 16(controls ECMP, not on-demand tunnel logic). - C. This choice is empty and does not provide any configuration.
- D. This choice is empty and does not provide any configuration; however, if it were to contain
system on-demand idle-timeout 10by itself, it would be a correct component for on-demand tunnels.
Concept tested. Cisco SD-WAN On-Demand Tunnel Configuration
Topics
#SD-WAN On-Demand Tunnels#WAN Edge Configuration#Overlay Management Protocol (OMP)#Traffic Engineering (TE)
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