BGP 面试题与答案
问题 26. Explain BGP route reflectors.
BGP route reflectors are used in iBGP to reduce the number of peer connections and simplify the iBGP mesh by allowing certain routers to reflect routes to others.
问题 27. What is BGP route filtering?
BGP route filtering is the process of controlling the routes that are advertised or accepted based on defined criteria, such as prefix lists or route maps.
问题 28. Explain BGP add-path feature.
BGP add-path allows a BGP router to advertise multiple paths for the same prefix, improving path diversity and redundancy in the network.
问题 29. What is BGP maximum-prefix limit?
BGP maximum-prefix limit is a mechanism to prevent a BGP router from being overwhelmed by a large number of advertised prefixes by imposing a limit on the number of accepted prefixes.
问题 30. Explain BGP prefix delegation.
BGP prefix delegation involves assigning specific IP prefixes to different entities within an AS, allowing for better control and management of address space.
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