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Network
stp
基本信息
通过在交换机之间传递BPDU来选举根交换机,以及确定每个交换机端口的角色和状态 stp分三个版本,stp,rstp,mstp
BPDU分为配置BPDU和拓扑BPDU
备份端口是收到了自己指定端口发出的dpdu 替代端口是根端口的备份