ARP/4/ARP_THRESHOLDRESUME_TRAP:OID [OID] The number of ARP entries was restored to the threshold. (entPhysicalIndex=[INTEGER], Slot name=[OCTET], Threshold=[COUNTER], Number of dynamic ARP entries=[COUNTER], Number of static ARP entries=[COUNTER]).
ARP表项的数量由超阈值减少到阈值范围内时，上报清除告警。