BGP 面接の質問と回答
質問 21. Explain the concept of BGP peer groups.
BGP peer groups are used to simplify the configuration and management of multiple BGP neighbors by grouping them together and applying common configuration parameters.
質問 22. What is a BGP community attribute?
A BGP community is a tag that can be attached to a route, providing a way to group routes and apply policies based on these groups.
質問 23. How does BGP prevent routing loops?
BGP prevents routing loops by using the AS_PATH attribute and refusing to accept a route if its own AS appears in the AS_PATH list.
質問 24. Explain BGP confederation.
BGP confederation is a method used to divide an AS into smaller sub-ASes, making BGP more scalable by reducing the number of routes exchanged between them.
質問 25. What is BGP route dampening?
BGP route dampening is a mechanism to minimize the impact of route flapping by penalizing unstable routes and suppressing them for a certain period.
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