Huawei
H12-841_V1.5 · Question #166
In a WAN BGP protocol deployment, if it is necessary to "filter out routes with a mask length greater than 24 bits when receiving routes advertised by neighbors", which of the following policies…
The correct answer is A. Apply a prefix-list to the BGP neighbor inbound direction to limit the mask length to 24. See the full explanation below for the reasoning.
Campus Network Design and Planning
Question
In a WAN BGP protocol deployment, if it is necessary to "filter out routes with a mask length greater than 24 bits when receiving routes advertised by neighbors", which of the following policies should be configured?
Options
- AApply a prefix-list to the BGP neighbor inbound direction to limit the mask length to 24.
- BConfigure BGP neighbor MD5 authentication
- CEnable BGP route aggregation to merge routes with a mask length greater than 24 bits.
- DAdjust the BGP Local Preference property to reduce the priority of long-mask routes.
How the community answered
(35 responses)- A77% (27)
- B14% (5)
- C3% (1)
- D6% (2)
Topics
#BGP#prefix-list#route filtering#mask length
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