QuestionQ180

Network Design

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Refer to the exhibit. At Company XYZ, Bangkok uses ECMP to reach the 172.20.2.0/24 network. The company requires a design that enables traffic from 172.16.2.0/24 toward 172.20.2.0/24 to use the Singapore router as the preferred route. All remaining traffic must continue to use ECMP. Which technology meets this design requirement?

  • A policy-based routing
  • B unequal-cost load balancing using variance
  • C route summarization
  • D LFA
Explanation

Policy-based routing can use a route map to match packets by source and destination and set Singapore as their next hop. Traffic that does not match the policy is forwarded according to the normal routing table, preserving EIGRP ECMP for the rest of the traffic.

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