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FTOS Configuration Guide for the C-Series - Force10 Networks

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Monitoring CPU and Memory Usage via SNMP<br />

To ga<strong>the</strong>r CPU and memory utilization via SNMP <strong>for</strong> <strong>the</strong> primary RPM, use <strong>the</strong><br />

FORCE10-CHASSIS-MIB (available from iSupport) and <strong>the</strong> objects in <strong>the</strong> chRpmUtilTable, shown in<br />

Table 76.<br />

Table 76 CPU and Memory Utilization Objects<br />

MIB Object MIB Object Name Description<br />

1.3.6.1.4.1.6027.3.1.1.3.7.1.3 chRpmCpuUtil5Sec CPU utilization percentage <strong>for</strong> last 5 seconds<br />

1.3.6.1.4.1.6027.3.1.1.3.7.1.4 chRpmCpuUtil1Min CPU utilization percentage <strong>for</strong> last 1 minute<br />

1.3.6.1.4.1.6027.3.1.1.3.7.1.5 chRpmCpuUtil5Min CPU utilization percentage <strong>for</strong> last 5 minutes<br />

1.3.6.1.4.1.6027.3.1.1.3.7.1.6 chRpmMemUsageUtil Total memory utilization in percentage<br />

Recognizing a High CPU Condition<br />

Recognize a high CPU condition by any of <strong>the</strong> messages in Message 30.<br />

Message 30 High CPU Condition<br />

Feb 13 13:56:16: %RPM1-S:CP %CHMGR-5-TASK_CPU_THRESHOLD: Cpu usage above threshold <strong>for</strong> task<br />

"sysAdmTsk"(100.00%) in CP.<br />

Feb 13 13:56:20: %RPM1-S:CP %CHMGR-5-CPU_THRESHOLD: Overall cp cpu usage above threshold.<br />

Cpu5SecUsage (100)<br />

Feb 13 13:56:20: %RPM1-S:CP %CHMGR-5-TASK_CPU_THRESHOLD_CLR: Cpu usage drops below<br />

threshold <strong>for</strong> task "sysAdmTsk"(0.00%) in CP.<br />

Troubleshooting a High CPU Condition<br />

If <strong>FTOS</strong> indicates a high CPU condition or you suspect one:<br />

Step Task Command Syntax Command Mode<br />

1 Enable debug cpu-traffic-stats, and monitor <strong>the</strong><br />

output with <strong>the</strong> show cpu-traffic-stats command.<br />

These commands indicate <strong>the</strong> physical interface<br />

through which <strong>the</strong> questionable traffic is arriving.<br />

2 Review <strong>the</strong> show ip traffic command output. This<br />

command displays <strong>the</strong> types of IP traffic destined to<br />

<strong>the</strong> CPU.<br />

debug cpu-traffic-stats<br />

show cpu-traffic-stats<br />

CONFIGURATION<br />

EXEC Privilege<br />

show ip traffic EXEC Privilege<br />

<strong>FTOS</strong> <strong>Configuration</strong> <strong>Guide</strong>, version 7.7.1.0 703

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