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三、 ３ Ｃｏｍ公司解决方案（ Ｂ） 方案Ａ，主要是采用ＶＢＮ服务运营管理服务器与 ３ Ｃｏｍ交换机的紧密配合，来实现保证用户个体的网络安全性。但它还是基于传统的虚拟网络技术。为了更好的解决以太网作为宽带接入技术时的安全弱点， ３ Ｃｏｍ公司特别推出了以太网接入?
Third, 3 Com solution (B) Scenario A, mainly through the VBN service operations management server and 3Com switches work closely with each other to achieve the individual network security to ensure that users. But it is still based on traditional virtual network technology. In order to better address the security weakness of Ethernet as a broadband access technology, 3 Com has introduced Ethernet access in particular?