A06B-0034-B175

注意： 直通式的转发速度大大快于存储转发模式，但可靠性要差一些，因为可 能转发冲突 帧或带CRC错误的帧。 生成树协议 消除回路： 在由交换机构成的交换网络中通常设计有冗余链路和设备。这种设计的 目的是防止一个点的失败导致整个网络功能的丢失。虽然冗余设计能够 消除单点失败的问题，但也导致了交换回路的产生，它会导致以下问题 。 ·广播风暴 ·同一帧的多份拷贝 ·不稳定的MAC地址表 因此，在交换网络中必须有一个机制来阻止回路，而生成树协议（Spa nning Tree Protocol）的作用正在于此。

A06B-0034-B175

联系人：郭先生
联系电话：18971415643《优先》
座机：027-83238871
传真：207-61537051
QQ：810334512《优先》

A06B-0034-B175

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