As shown in the network diagram, RTA and RTB are located in AS 1001, RTC, RTD, and RTE are located in AS 1002, and AS 1001 advertises the BGP route 11.11.11.0/24 to AS 1002. The main BGP configurations of RTC and RTD are as follows, if RTE 1. The RTC interconnection link is interrupted, and RTE accesses the 11.11.11.0/24 network segment, which WAN link should be preferred?

As shown in the network diagram, RTA and RTB are located in AS 1001, RTC, RTD, and RTE are located in AS 1002, and AS 1001 advertises the BGP route 11.11.11.0/24 to AS 1002. The main BGP configurations of RTC and RTD are as follows, if RTE 1. The RTC interconnection link is interrupted, and RTE accesses the 11.11.11.0/24 network segment, which WAN link should be preferred?

RTC]

bgp 1002

preference 20 170 200

peerRTA as-number 1001

peerRTD as-number 1002

peerRTA route-policsetmed import

route-policsetmed permit node 10

applcost 100

RTD]

bgp 1002

preference 20 170 200

peerRTB as-number 1001

peerRTC as-number 1002

peerRTA route-policsetmed import

route-policsetmed permit node 10

applcost 200

A . Prioritize WAN link 1, because MED 100 of RTC < MED 200 of RTD
B. Prioritize WAN link 1, because the eBGP route on RTC takes precedence.
C. Prioritize the WAN link 2, because MED 200 of RTD> MED 100 of RTC.
D. Prioritize the WAN link 2, because the eBGP route on RTD has priority.

View Answer

Answer: D