300-510 SPRI: Implementing Cisco Service Provider Advanced Routing SolutionsDemo

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Refer to the exhibit. After troubleshooting a BGP traffic-steering issue, which action did the network operator take to obtain the correct effect from this configuration?

A Routes that have passed through AS 65517 have the local preference set to 150.
B Routes that have originated through AS 65517 have the local preference set to 150.
C Routes directly attached to AS 65517 have the local preference set to 150.
D Routes that have passed through AS 65517 have the local preference set to 150 and the traffic is denied.

Explanation

The _65517_ AS-path regular expression matches AS 65517 anywhere as a complete AS number in the path, so it identifies routes that have passed through AS 65517. The inbound permit route-map sequence accepts those matching routes and sets their local preference to 150.

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Cisco: Use Regular Expressions in BGP

300-510 SPRI: Implementing Cisco Service Provider Advanced Routing SolutionsDemo

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