STP Dispute 保护触发后立刻退出

%Sep 12 22:45:45:128 2026 CTY-YZ-JS-YZ-MTDD-01D04F403-J01-12-12U05-H3C-S12508-DSW STP/4/STP_DISPUTE: Instance 0's port Bridge-Aggregation11 received an inferior BPDU from a designated port which is in forwarding or learning state. The designated bridge ID contained in the BPDU is 32768.6c87-208d-5ecc, and the designated port ID contained in the BPDU is 128.2191.

%Sep 12 22:45:45:129 2026 CTY-YZ-JS-YZ-MTDD-01D04F403-J01-12-12U05-H3C-S12508-DSW STP/4/STP_DISPUTE: Instance 0's port Bridge-Aggregation13 received an inferior BPDU from a designated port which is in forwarding or learning state. The designated bridge ID contained in the BPDU is 32768.6c87-208d-4e78, and the designated port ID contained in the BPDU is 128.2191.

%Sep 12 22:45:45:129 2026 CTY-YZ-JS-YZ-MTDD-01D04F403-J01-12-12U05-H3C-S12508-DSW STP/4/STP_DISPUTE: Instance 0's port Bridge-Aggregation12 received an inferior BPDU from a designated port which is in forwarding or learning state. The designated bridge ID contained in the BPDU is 32768.6c87-208d-623c, and the designated port ID contained in the BPDU is 128.2186.

四个不太的聚合口同时收到了低优先级BPDU触发STP dispute阻塞接口，之后立马退出STP dipute保护。

1. 2、在非根桥设备上启用 stp root-protection 根保护功能，防止非法设备抢占根桥位置，从机制上杜绝因根桥变化引发的Dispute保护误触发。