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初级工程师
  
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发表于 2019-8-28 12:35:04
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之前複製到題目本身, 正解應該如下% T; P0 z; P! l, |/ D6 r/ F# F; Y9 \8 d
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Punt Adjacency: Features that require special handling or features that are not yet supported in conjunction with CEF switching paths are forwarded to the next switching layer for handling. Features that are not supported are forwarded to the next higher switching level. ! h( Z/ Z4 D6 x) o
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9 i( D" D3 n9 k" U4 jDrop Adjacency: Packets are dropped, but the prefix is checked.
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, {( u3 b: S; z F3 `( J6 ~Null Adjacency: Packets destined for a Null0 interface are dropped. This can be used as an effective form of access filtering.
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Discard Adjacency: Packets are discarded.
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Glean Adjacency: When a router is connected directly to several hosts, the FIB table on the router maintains a prefix for the subnet rather than for the individual host prefixes. The subnet prefix points to a glean adjacency. When packets need to be forwarded to a specific host, the adjacency database is gleaned for the specific prefix. |
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2019-8-28 12:35:04
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