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…

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

Why each option

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.

Asdwan service TE vrf global exit omp no shutdown ecmp-limit 16

This option includes `service TE vrf global` (unrelated to on-demand tunnels), `omp no shutdown` (default OMP behavior), and `ecmp-limit 16` (controls ECMP, not on-demand tunnel logic).

Bomp no shutdown ecmp-limit 16 system on-demand enable on-demand idle-timeout 10

This choice is empty and does not provide any configuration.

This choice is empty and does not provide any configuration; however, if it were to contain `system on-demand idle-timeout 10` by itself, it would be a correct component for on-demand tunnels.

Concept tested: Cisco SD-WAN On-Demand Tunnel Configuration

Source: https://www.cisco.com/c/en/us/td/docs/routers/sdwan/configuration/system-interfaces/ios-xe-17/system-interfaces-book-xe/m-tunnel-interface-parameters.html

Topics

#SD-WAN On-Demand Tunnels#WAN Edge Configuration#Overlay Management Protocol (OMP)#Traffic Engineering (TE)

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