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【多选题】
RSTP 在哪些方面对 STP 进行了改进A.
一个交换机选举出一个新的根端口之后,如果以前的根端口已经不处于 Forwarding 状态,而且上 游 指定端口已经开始转发数据,则新的根端口立即进入转发状态
B.
当把一个交换机端口配置成为边缘端口之后,一旦端口被启用,则端口立即成为指定端口(Designated Port) ,并进入转发状态
C.
如果指定端口连接着点到多点链路,则设备可以通过与下游设备握手,得到响应后即刻进入转发状态
D.
如果指定端口连接着点到点链路,则设备可以通过与下游设备握手,得到响应后即刻进入转发状态
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A.
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B.
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C.
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E.
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