Cisco 3232C で SwitchTemperatureUnknown_Alert が報告されます

環境

Cisco 3232C

問題

スイッチ温度の読み取り値で障害または不明が報告されました

ClusterA::*> cluster-switch temperature show
  (system cluster-switch temperature show)
                             Threshold  Threshold
Switch  Sensor       Reading Severity   Value      Status   Error
------- ------------ ------- ---------- ---------- -------- --------------
node1   (sensor) module-1 BACK 24 Minor, Major 42, 70 normal
node1   (sensor) module-1 CPU 33 Minor, Major 80, 95 normal
node1   (sensor) module-1 FRONT 26 Minor, Major 70, 80 normal
node1   (sensor) module-1 TH 41 Minor, Major 90, 105 normal
node1   (sensor) module-1 VRM-1 41 Minor, Major 100, 110 normal
node1   (sensor) module-1 BACK 25 Minor, Major 42, 70 normal
node1   (sensor) module-1 CPU 33 Minor, Major 80, 95 normal
node1   (sensor) module-1 FRONT 4294967168 Minor, Major 70, 80 unknown unavailable
node1   (sensor) module-1 TH 42 Minor, Major 90, 105 normal
node1   (sensor) module-1 VRM-1 42 Minor, Major 100, 110 normal