Refer to the exhibit.
There are two eBGP links between AS100 and AS200. Currently the router A to router E link
has an average inbound load of 65% and the router B to router F link has an average
inbound load of 20%. After further investigation, it is found that traffic to the 10.10.1.16/28
subnet is using 45% of the bandwidth on the A to router E link and traffic to the
10.10.1.32/28 subnet is using 20% of the bandwidth on the A to router E link. Traffic to the
10.10.1.48/28 subnet is using 20% of the bandwidth on the B to router F link. If you want to
influence how AS200 sends traffic to AS100, which two commands would you configure in
AS100 to influence AS200 to use the eBGP links more evenly? (Choose two.)
A.
neighbor 192.168.30.2 route-map as_50 out
B.
neighbor 192.168.20.2 route-map as_50 out
C.
route-map as_50 permit 10
match ip address 50
set metric 150
access-list 50 permit 10.10.1.16 0.0.0.240
D.
route-map as_50 permit 10
match ip address 50
set metric 150
access-list 50 permit 10.10.1.32 0.0.0.240
Explanation:
To make the eBGP links more evenly we should use the link B-F for network 10.10.25.0/24
so that the total traffic going through B-F link is about 40%. In this case we should apply a
route map on B to set the local preference of 10.10.25.0/24 to a higher value than 100. But
notice that we must use a second clause to permit other traffic if not they will be filtered out.
Note: The default value for local preference is 100. A path with higher local preference is
preferred.