300-410 ENARSI: Implementing Cisco Enterprise Advanced Routing and ServicesDemo

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QuestionQ366

Layer 3 Technologies

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Refer to the exhibit. The network administrator configured BGP as the backup route for 10.0.0.0/8; it must operate only when EIGRP 10.0.0.0/8 fails to install for site S4248T5E130F6. Which configuration resolves the problem?

  • A configure terminal!router eigrp 1distance eigrp 90 170
  • B configure terminal!router eigrp 1redistribute bgp metric 10000 1 255 1 1500
  • C configure terminal!ip route 10.0.0.0 255.0.0.0 192.168.90.2
  • D configure terminal!router eigrp 1distance eigrp 10 170
Explanation

An internal EIGRP route normally has an administrative distance of 90, whereas an external BGP route has an administrative distance of 20. Setting the internal EIGRP administrative distance to 10 makes the EIGRP 10.0.0.0/8 route preferred whenever it is present. The BGP route is installed only after that EIGRP route is no longer available.

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