As shown in the following figure, R1 can connect to the Internet through R2 or R3. EBGP connections are set up between R1 and R2 and between R1 and R3.
R2 and R3 reside in the same AS and advertise default routes using BGP. Which of the following methods can be used to enable traffic from R1 to the Internet to be preferentially forwarded by R2?

Question

As shown in the following figure, R1 can connect to the Internet through R2 or R3. EBGP connections are set up between R1 and R2 and between R1 and R3.

R2 and R3 reside in the same AS and advertise default routes using BGP. Which of the following methods can be used to enable traffic from R1 to the Internet to be preferentially forwarded by R2?

mark linde · Accepted Answer

On R1, set the Local_Pref attribute value to 150 in the ingress direction of R2

mark linde · Answer

On R2, set the Local_Pref value to 150 in the egress direction of R1

mark linde · Answer

On R1, set the MED attribute value to 150 in the ingress direction of R3

mark linde · Answer

On R2, set the MED attribute value to 150 in the egress direction of R1

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