A clinic wants voice to prefer the internet color, and to use only the MPLS color when internet misses the loss target. Voice must not be dropped, and it must not pick some third path. Which action is that?
Select an answer to reveal the explanation.
Short Explanation
You want a named detour, not a cliff or a random side street. With application-aware routing, you prefer the internet color and name MPLS as the backup SLA color, so voice moves there when internet misses the loss target instead of being dropped; a strict SLA drops calls, while withdrawing MPLS removes the detour.
Full Explanation
Catalyst SD-WAN application-aware routing can prefer a color and, when no tunnel meets the SLA, send the application to a named backup SLA preferred color instead of dropping it or sending it over an unspecified remaining tunnel. Here, internet is preferred and MPLS is the named backup, so voice keeps flowing on MPLS when internet loss is too high and does not take a third path. A strict SLA drops the application when the class misses its target, violating the requirement that voice must not be dropped. A control policy that withdraws the MPLS TLOC removes the only allowed backup, so voice cannot use the required detour. A zone-based firewall that denies voice on MPLS and permits it only when internet loss is high cannot measure the SLA, and denying MPLS removes the backup the clinic named. Exam caveat: the backup-color action is not the same as strict, and you do not configure both on the same action. Choose the backup color when using a degraded path is preferable to dropping the application. Operational check: with internet loss inside the target, voice should use the internet color. Raise internet loss above the target and confirm voice moves only to MPLS.