When BGP uses Filter-Policy, you can use the filter-policy export command to filter the routes published externally. Only routes that pass the filtering can be added to the BGP local routing table and published by BGP.

Now you need to add AC1 with the source interface IP address of 10.1.200.100 and AC2 with the source interface IP address of 10.1.200.200 to the Huawei roaming group. Their configuration is as shown below. Then the command () should be configured in the space.

Which of the following description about LSA is correct?

By default, VRP requires manual operation to resend update messages to the neighbor when the BGP command export routing policy (route-policy) is changed.

Which of the following options is not the purpose of OSPF Hello message exchange?