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二层网络和三层网络的区别
大家经常会听到二层网络、三层网络的说法，pg电子官网 这里提到的二层、三层是按照逻辑拓扑结构进行的分类，并不是ISO七层模型中的数据链路层和网络层，而是指核心层、汇聚层和接入层。这三层都部署的就是三层网络结构，二层网络结构没有汇聚层。让pg电子官网 大家一起来看看二层网络和…
2024-5-26 2:03:45[未知IP0801]网友
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2024-5-2 10:34:27[未知IP0801]网友
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2024-5-2 1:34:30[未知IP0801]网友
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2024-4-27 8:33:32[未知IP0801]网友
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