5800上收到tc变化宣告导致其他端口进入discarding状态

查看日志，显示五条：

Instance 0's port Ten-GigabitEthernet1/0/54 was notified of a topology change.

交换机部分端口进入discarding状态

Feb 5 19:33:42:067 2021 zhuzaocun-5800 STP/6/STP_DISCARDING: Instance 0's port GigabitEthernet1/0/2 has been set to discarding state. Feb 5 19:33:42:067 2021 zhuzaocun-5800 STP/6/STP_DISCARDING: Instance 0's port GigabitEthernet1/0/3 has been set to discarding state. Feb 5 19:33:42:067 2021 zhuzaocun-5800 STP/6/STP_DISCARDING: Instance 0's port GigabitEthernet1/0/6 has been set to discarding state. Feb 5 19:33:42:067 2021 zhuzaocun-5800 STP/6/STP_DISCARDING: Instance 0's port GigabitEthernet1/0/7 has been set to discarding state. Feb 5 19:33:42:068 2021 zhuzaocun-5800 STP/6/STP_DISCARDING: Instance 0's port GigabitEthernet1/0/11 has been set to discarding state. Feb 5 19:33:42:068 2021 zhuzaocun-5800 STP/6/STP_DISCARDING: Instance 0's port GigabitEthernet1/0/12 has been set to discarding state. Feb 5 19:33:42:068 2021 zhuzaocun-5800 STP/6/STP_DISCARDING: Instance 0's port GigabitEthernet1/0/13 has been set to discarding state. Feb 5 19:33:42:068 2021 zhuzaocun-5800 STP/6/STP_DISCARDING: Instance 0's port GigabitEthernet1/0/15 has been set to discarding state. Feb 5 19:33:42:068 2021 zhuzaocun-5800 STP/6/STP_DISCARDING: Instance 0's port GigabitEthernet1/0/16 has been set to discarding state. Feb 5 19:33:42:069 2021 zhuzaocun-5800 STP/6/STP_DISCARDING: Instance 0's port GigabitEthernet1/0/17 has been set to discarding state. Feb 5 19:33:42:069 2021 zhuzaocun-5800 STP/6/STP_DISCARDING: Instance 0's port GigabitEthernet1/0/18 has been set to discarding state. Feb 5 19:33:42:069 2021 zhuzaocun-5800 STP/6/STP_DISCARDING: Instance 0's port GigabitEthernet1/0/19 has been set to discarding state. Feb 5 19:33:42:069 2021 zhuzaocun-5800 STP/6/STP_DISCARDING: Instance 0's port GigabitEthernet1/0/20 has been set to discarding state. Feb 5 19:33:42:070 2021 zhuzaocun-5800 STP/6/STP_DISCARDING: Instance 0's port GigabitEthernet1/0/21 has been set to discarding state. Feb 5 19:33:42:070 2021 zhuzaocun-5800 STP/6/STP_DISCARDING: Instance 0's port GigabitEthernet1/0/22 has been set to discarding state. Feb 5 19:33:42:070 2021 zhuzaocun-5800 STP/6/STP_DISCARDING: Instance 0's port GigabitEthernet1/0/23 has been set to discarding state. Feb 5 19:33:42:070 2021 zhuzaocun-5800 STP/6/STP_DISCARDING: Instance 0's port GigabitEthernet1/0/24 has been set to discarding state. Feb 5 19:33:42:070 2021 zhuzaocun-5800 STP/6/STP_DISCARDING: Instance 0's port GigabitEthernet1/0/35 has been set to discarding state. Feb 5 19:33:42:071 2021 zhuzaocun-5800 STP/6/STP_DISCARDING: Instance 0's port GigabitEthernet1/0/36 has been set to discarding state. Feb 5 19:33:42:071 2021 zhuzaocun-5800 STP/6/STP_DISCARDING: Instance 0's port GigabitEthernet1/0/46 has been set to discarding state. Feb 5 19:33:42:073 2021 zhuzaocun-5800 STP/6/STP_DISCARDING: Instance 0's port GigabitEthernet1/0/48 has been set to discarding state. Feb 5 19:33:42:074 2021 zhuzaocun-5800 STP/6/STP_DISCARDING: Instance 0's port Ten-GigabitEthernet1/0/49 has been set to discarding state. 

Feb 5 19:33:42:074 2021 zhuzaocun-5800 STP/6/STP_DISCARDING: Instance 0's port Ten-GigabitEthernet1/0/52 has been set to discarding state. 

Feb 5 19:33:42:074 2021 zhuzaocun-5800 STP/6/STP_DISCARDING: Instance 0's port Ten-GigabitEthernet1/0/53 has been set to discarding state. 

Feb 5 19:33:42:074 2021 zhuzaocun-5800 STP/6/STP_DISCARDING: Instance 0's port Bridge-Aggregation10 has been set to discarding state. Feb 5 19:33:42:074 2021 zhuzaocun-5800 STP/6/STP_DISCARDING: Instance 0's port Bridge-Aggregation50 has been set to discarding state. Feb 5 19:33:42:177 2021 zhuzaocun-5800 STP/6/STP_FORWARDING: Instance 0's port Bridge-Aggregation50 has been set to forwarding state.

查看

disp stp bpdu-statistics interface t1/0/54 

 Port: Ten-GigabitEthernet1/0/54 

 Instance-independent: Type Count Last Updated

 Invalid BPDUs 0 

 Looped-back BPDUs 0 

 MAX-aged BPDUs 0 

 TCN sent 0 

 TCN received 0 

 TCA sent 0 

 TCA received 0 

 Config sent 0 

 Config received 0 

 RST sent 0 

 RST received 0 

 MST sent 52 00:05:38 02/06/2021 

 MST received 1703461 02:14:22 02/06/2021 

 Instance 0: 

 Type Count Last Updated

 Timeout BPDUs 0 

 MAX-hoped BPDUs 0 

 TC detected 1 15:55:04 12/28/2020 

 TC sent 40 02:37:16 01/28/2021 

 TC received 20 00:05:36 02/06/2021 

请教，如何能查到tcn是从哪个设备发来的（通过mac可查？）