CONTP-119131：发生SNMP故障时发出误报交换机风扇和电源警报

问题描述

• 交换机运行状况监控器警报SwitchFanNotPresent_Alert、SwitchPowerNotPresent_Alert和SwitchPowerUnknot_Alert会反复出现并被清除。
• 要应用此问题描述、必须发出所有这三个警报
• 影响以下交换机型号：
• BES-53248
• N3K-C3232C
• N9K-C9336C-FX2
• N9K-C92300YC
• MSN2100-CB2FC、MSN2100-CB2RC
• X190006-PE、X190006-PI
• 事件日志报告多个警报，例如：
  hm.alert.raised: Alert Id = SwitchPowerUnknown_Alert , Alerting Resource = Switch1(Serial)/PowerSupply-1 raised by monitor ethernet-switch
hm.alert.raised: Alert Id = SwitchPowerNotPresent_Alert , Alerting Resource = Switch1(Serial)/PowerSupply-1 raised by monitor ethernet-switch
hm.alert.raised: Alert Id = SwitchFanNotPresent_Alert , Alerting Resource = Switch1(Serial)/Fan Module-1 raised by monitor ethernet-switch
  
• system运行状况警报show命令输出也会显示这些警报