思科 華為 loopback-detection

今天菜雞哥哥到核心交換發現一堆報錯，如下圖

思科對此官方的解釋是：
Error Message SW_MATM-4-MACFLAP_NOTIF: Host [enet] in [chars] [dec] is flapping between port [chars] and port [chars]
某主機的MAC地址在某兩端口之間擺動。思科推薦行動是檢查交換機的配置以防有數據傳輸環路。
Explanation This message means that the switch found the traffic from the specified host flapping between the specified ports. [enet] is the host MAC address, [chars] [dec] is the switch ID, and the first and second [chars] are the ports between which the host traffic is flapping.
Recommended Action Check the network switches for misconfigurations that might cause a data-forwarding loop.
華為官方解釋此地址Host 00:E0:FC:09:BC:F9為STP、loopback-detection、NDP、STDP、gratuitous-arp-learning用的組播所用的虛擬地址。
解決辦法：接入層華為設備的上行口LOOPBACK-DETECTION關閉就好了。
另外對於這個問題的解釋，這個鏈接有詳細的解釋
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思科和華為交換機loopback-detection引起的報錯解決方案