Refer to the exhibit.
R1 has two eBGP sessions to ISP1 and ISP2 (one to each ISP router), and R1 receives the same
prefixes through both links.
Which configuration should be applied for the link between R1 and ISP2 to be preferred for
incoming traffic (ISP2 to R1)?
A.
increase local preference on R1 for routes advertised to ISP2
B.
decrease local preference on R1 for routes advertised to ISP2
C.
increase MED on R1 for routes advertised to ISP2
D.
decrease MED on R1 for routes advertised to ISP2
Explanation:
MED is an optional nontransitive attribute. MED is a hint to external neighbors about the preferred
path into an autonomous system (AS) that has multiple entry points. The MED is also known as
the external metric of a route. A lower MED value is preferred over a higher value.