Refer to the exhibit. An engineer must configure multihoming between router R1 and service provider SP-2. Locally generated routes must be advertised to service provider SP-2. Which command must be…

The correct answer is B. neighbor 10.12.10.1 route-map localonly out. On R1 (AS200), the requirement is: Advertise locally generated routes (for example, 10.10.10.0/24 from AS200) Only toward SP-2, which peers on IP 10.12.10.1 Apply a policy (route-map) controlling what R1 advertises In BGP, to control which locally originated routes are sent to…

Managing and Operating Cisco SP Network

Question

Refer to the exhibit. An engineer must configure multihoming between router R1 and service provider SP-2. Locally generated routes must be advertised to service provider SP-2. Which command must be run on R1 to complete the configuration?

Exhibit

Options

Anetwork 10.0.0.0 route-map as200only out
Bneighbor 10.12.10.1 route-map localonly out
Cnetwork 10.12.10.1 route-map as200only in
Dneighbor 10.0.0.0 route-map localonly out

How the community answered

(42 responses)

A
14% (6)
B
71% (30)
C
10% (4)
D
5% (2)

Explanation

On R1 (AS200), the requirement is: Advertise locally generated routes (for example, 10.10.10.0/24 from AS200) Only toward SP-2, which peers on IP 10.12.10.1 Apply a policy (route-map) controlling what R1 advertises In BGP, to control which locally originated routes are sent to a specific neighbor, the correct configuration is: neighbor <IP> route-map <map-name> out This applies outbound policy filtering or permitting to the prefixes advertised. The neighbor toward SP-2 is 10.12.10.1 The route-map must be applied outbound The command that accomplishes this is: neighbor 10.12.10.1 route-map localonly out

Topics

#BGP#multihoming#route-map#neighbor policy

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