Refer to the exhibit. For Company XYZ, Bangkok is using ECMP to reach the 172.20.2.0/24 network. The company wants a design that would allow them to forward traffic from 172.16.2.0/24 toward 172.20.2.0/24 via the Singapore router as the preferred route. The rest of the traffic should continue to use ECMP. Which technology fulfills this design requirement?
Policy-based routing fulfills the design requirement. It allows the network admin to manually specify the routing path based on policies, such as source, destination addresses, or other criteria. In this case, using policy-based routing, traffic from the 172.16.2.0/24 network can be directed through the Singapore router to reach the 172.20.2.0/24 network, while maintaining ECMP for all other traffic.
Looks OK
PBR overwrite the dynamic/static routing.
The routing is generally destination based. However if the requirement is to route the traffic based on Source IP Address - PBR is the only way. PBR takes precedence over the routing table