S5300日志报CPCAR_DROP_MPU(l)错误

txally

S5300的日志经常 报：
Quidway %%01DEFD/4/CPCAR_DROP_MPU(l)[5]:Some packets
are dropped by cpcar on the MPU. (Protocol=arp-request, Drop-Count=0110)

好像是ARP异常，请问如何能查出哪个端口，哪个MAC地址的异常。