Use the System > CPU Guard page to set the CPU utilization high and low watermarks in percentage of CPU time utilized and the CPU high and low thresholds in the number of packets being processed per second.
Enables CPU Guard. (Default: Disabled)
If the percentage of CPU usage time is higher than the high-watermark,the switch stops packet flow to the CPU (allowing it to catch up with packets already in the buffer) until usage time falls below the low watermark. (Range: 40-100 %; Default: 90 %)
If packet flow has been stopped after exceeding the high watermark, normal flow will be restored after usaage falls beneath the low watermark. (Range: 40-100 %; Default: 70 %)
If the number of packets being processed by the CPU is higher than the maximum threshold,the switch stops packet flow to the CPU (allowing it to catch up with packets already in the buffer) until the number of packets being processed falls below the minimum threshold. (Range: 50-500 pps; Default: 500 pps)
If packet flow has been stopped after exceeding the maximum threshold, normal flow will be restored after usaage falls beneath the minimum threshold. (Range: 50-500 pps; Default: 50 pps)
If enabled, an alarm message will be generated when utilization exceeds the high watermark or exceeds the maxmimum threshold. (Default: Disabled)
Once the high watermark is exceeded, utilization must drop beneath the low watermark before the alarm is terminated, and then exceed the high watermark again before another alarm is triggered.
Once the maximum threshold is exceeded, utilization must drop beneath the minimum threshold before the alarm is terminated, and then exceed the maximum threshold again before another alarm is triggered.
Shows the configured threshold in packets per second.