网络工程 - Cisco 2960：RSTP 何时完成？ - 吾爱随笔录

我这里有几台 Cisco 2960 交换机，都配置为 RSTP。

15.0(2)SE6
C2960-LANBASEK9-M

spanning-tree mode rapid-pvst

拓扑如下：

S1 -- S2 -- S4
  \        /
   \__S3__/

我更改了 S3 上的网桥 ID，使其成为根网桥。

然后我有以下调试输出：

Apr  7 12:25:27.173: RSTP(1): updt roles, received superior bpdu on Gi0/2
Apr  7 12:25:27.173: RSTP(1): Gi0/1 is now root port
Apr  7 12:25:27.173: RSTP(1): Gi0/2 blocked by re-root
Apr  7 12:25:27.173: RSTP(1): Gi0/2 is now designated
Apr  7 12:25:27.182: STP[1]: Generating TC trap for port GigabitEthernet0/1
Apr  7 12:25:27.182: RSTP(1): updt roles, received superior bpdu on Gi0/1
Apr  7 12:25:27.182: RSTP(1): we become the root bridge
Apr  7 12:25:27.182: RSTP(1): Gi0/1 is now designated
Apr  7 12:25:27.182: RSTP(1): transmitting a proposal on Gi0/2
Apr  7 12:25:27.190: RSTP(1): received an agreement on Gi0/2
Apr  7 12:25:27.199: STP[1]: Generating TC trap for port GigabitEthernet0/2

在此日志中的哪一点，RSTP 进程完成并再次开始转发帧？我的想法是在 27.190，总共 13 毫秒。这个假设是正确的还是日志中的最后一行仍然是 RSTP 过程的一部分？