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交换--STP协议
2022-08-02 06:11:00 【关伯兰,】
SVI ---交换机虚拟接口---在华为体系中被称为VLAN IF接口,针对VLAN来进行配置的虚拟的三层接口。
STP ---生成树协议


TCN BPDU ---本地交换链路故障后,STP将重新收敛,为了加快刷新交互机的MAC地址表,将向本地所有STP接口发TCN BPDU,邻居交换机收到TCN BPDU后将回复一个TCA位置1的配置BPDU,用于可靠性传出,之后将TCN BPDU逐级转发到根网桥处,由根网桥下发TC标记位置1的配置BPDU,逐级下发给所有的交换机,所有交换机在收到后将临时的将300S的MAC地址老化时间改为15S。


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