全光网络的风正在刮进园区网，众所周知，光纤入户发展迅速，随着PON（无源光纤网络）技术在运营商通信网络的大规模使用，PON相关产业链逐步成熟，这也使得PON技术逐步在企业园区网得到应用。基于铜线介质（双绞线、以太网线和同轴电缆）的接入网络盛行了很多年，PON的出现有其必然性，例如其具备抗干扰能力更强、能耗更低、支持高带宽的平滑演进等优势。在目前的园区网络中，基于铜缆的核心、汇聚、接入这样的交....

问答 2022-02-15 来自：开发者社区

集线器和以太网交换机工作在数据连路层，网桥能隔离网络层广播这两种说法正确吗？

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更新时间 2024-06-26 11:42:06

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