As shown in the figure, all interfaces of the router enable OSPF, and the configurations of R1, R2, and R3 are as shown in the figure, then () will generate a Type 3 LSA with a linkState ID other than 0.0.0.0. (Please fill in the device name, such as R1)

When deploying MPLS/BGP IP VPN, which of the following descriptions is wrong about using BGP to exchange routing information between PEs and CEs?

(Drag and drop question) The configuration shown in the figure is performed on R2 to filter all incoming routes. Suppose there is an entry on R1 AS_Path attribute is [100 200 300 400] BGP routes need to be sent to R2, please help network administrators in Adjust the AS order in the AS_Path attribute of the route on R1 to ensure that the route entry will not be routed by R2 route^policy AS-PATH permit node 10 if-match as-path-filter BGP route-policy AS-PATH deny node 20 ip as-path-filter BGP permit A[A2]00 400 100_

route-policy AS-PATH permit node 10 if-match ip-prefix BGP
apply as-path overwrite
ip ip-prefix BGP permit 10.0.0.0 24

The routing attributes of the three routing entries are shown in the figure. Assuming that the next hop of the three routing entries are all reachable, when the three routing entries arrive at the BP router in sequence, by default, BGP will finally select one route entry?

Which of the following sequences can be matched by the regular expression 100.S