Refer to the exhibit diagram and configuration. RTB is summarizing its networks from AS 64100
with the aggregate-address command. However, the show ip route command on RTA reveals the
RTB individual networks as well as its summary route. Which option would ensure that only the
summary route would appear in the routing table of RTA?
A.
Delete the four network statements and leave only the aggregate-address statement in the
BGP configuration.
B.
Add the keyword summary-only to the aggregate-address command.
C.
Add a static route with a prefix of 192.168.24.0 255.255.252.0 pointing to the null0 interface.
D.
Create a route map permitting only the summary address.
Explanation:
When the aggregate-address command is used within BGP routing, the aggregated address is
advertised, along with the more specific routes. The exception to this rule is through the use of the
summary-only command. The “summary-only” keyword suppresses the more specific routes and
announces only the summarized route.