问题
如何在初始触发后随时确定警报的当前故障率。最初的故障率可能更容易找到，但是，在几小时后，人们是否会找到当前的故障率？
答案
当初始SNMP陷阱、日志和警报跟踪受监控阈值的初始故障率时，如何获得当前的故障率可能并不明显。在“show threshold”的底部，命令报告与上次轮询间隔中当前故障率相关的所有警报的状态。
[local]PDSN> show threshold
Friday June 12 04:39:32 UTC 2015
Outstanding alarms:
Threshold Name: aaa-acct-failure-rate
Alarm Source: System
Last Measured: 77% Raise Time: 2015-Jun-11+22:15:05
[local]PDSN> show thresh
Friday June 12 05:34:04 UTC 2015
Outstanding alarms:
Threshold Name: aaa-acct-failure-rate
Alarm Source: System Last Measured: 65%
Raise Time: 2015-Jun-11+22:15:05
[local]PDSN> show thresh
Friday June 12 06:06:07 UTC 2015
Outstanding alarms:
Threshold Name: aaa-acct-failure-rate
Alarm Source: System
Last Measured: 61%
Raise Time: 2015-Jun-11+22:15:05
[local]PDSN> show alarm outstanding verbose
Friday June 12 04:41:28 UTC 2015
Severity Object Timestamp Alarm ID
-------- ---------- ---------------------------------- ---------------------
Alarm Details
--------------------------------------------------------------------------------
Minor Chassis Thursday June 11 22:15:05 U 5770524519230406656
<28:aaa-acct-failure-rate> has reached or exceeded the configured threshold <25%>, the measured value is <32%>. It is detected at <System>.
2015-Jun-11+22:15:05.418 [alarmctrl 65201 info] [8/0/5185 <evlogd:0> alarmctrl.c:192] [software internal system critical-info syslog] Alarm condition: id 5015057a08690000 (Minor): <28:aaa-acct-failure-rate> has reached or exceeded the configured threshold <25%>, the measured value is <32%>. It is detected at <System>.
Thu Jun 11 22:15:05 2015 Internal trap notification 222 (ThreshAAAAcctFailRate) threshold 25% measured value 32%
问题清除：
2015-Jun-12+07:15:05.210 [alarmctrl 65200 info] [8/0/5185 <evlogd:0> alarmctrl.c:285] [software internal system critical-info syslog] Alarm cleared: id 5015057a08690000: <28:aaa-acct-failure-rate> has reached or exceeded the configured threshold <25%>, the measured value is <32%>. It is detected at <System>.
Fri Jun 12 07:15:05 2015 Internal trap notification 223 (ThreshClearAAAAcctFailRate) threshold 20% measured value 0%
[local]PDSN> show threshold Friday June 12 13:45:26 UTC 2015
...
No outstanding alarm
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