Edge-Core ECS4120-28F, Reference Manual, Page: 200 / 938

Chapter 5
| SNMP Commands
Additional Trap Commands
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process cpu guard
This command sets 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. Use the
no form of this command without any
parameters to restore all of the default settings, or with a specific parameter to
restore the default setting for that item.
Syntax
process cpu guard [ high-watermark high-watermark |
low-watermark low-watermark | max-threshold max-threshold |
min-threshold min-threshold | trap ]
high-watermark - 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.
low-watermark - If packet flow has been stopped after exceeding the high
watermark, normal flow will be restored after usage falls beneath the low
watermark.
max-threshold - If the number of packets being processed per second 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.
min-threshold - If packet flow has been stopped after exceeding the
maximum threshold, normal flow will be restored after usage falls beneath
the minimum threshold.
trap - If traps are enabled, the switch will send an alarm message if CPU
utilization exceeds the high watermark in percentage of CPU usage time or
exceeds the maximum threshold in the number of packets being processed
by the CPU.
Default Setting
Guard Status: Disabled
High Watermark: 90%
Low Watermark: 70%
Maximum Threshold: 500 packets per second
Minimum Threshold: 50 packets per second
Trap Status: Disabled
Command Mode
Global Configuration
Command Usage
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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.