Diagnosing Switch Problems Monitoring Switch Health
OmniSwitch AOS Release 8 Network Configuration Guide December 2017 page 34-35
Monitoring Switch Health
To monitor resource availability, the NMS (Network Management System) needs to collect significant
amounts of data from each switch. As the number of ports per switch (and the number of switches)
increases, the volume of data can become overwhelming. The Health Monitoring feature can identify and
monitor a switch’s resource utilization levels and thresholds, improving efficiency in data collection.
Health Monitoring provides the following data to the NMS:
• Switch-level Input/Output, Memory and CPU Utilization Levels
• Module-level and Port-level Input/Output Utilization Levels
For each monitored resource, the following variables are defined:
• Most recent utilization level (percentage)
• Average utilization level over the last minute (percentage)
• Average utilization level over the last hour (percentage)
• Maximum utilization level over the last hour (percentage)
• Threshold level
Additionally, Health Monitoring provides the capacity to specify thresholds for the resource utilization
levels it monitors and generates traps based on the specified threshold criteria.
The following sections include a discussion of CLI commands that can be used to configure resource
parameters and monitor or reset statistics for switch resources. These commands include:
• health threshold—Configures threshold limits for input traffic (RX), output/input traffic (TX/RX),
memory usage, CPU usage, and chassis temperature. See page 34-36 for more information.
• show health configuration—Displays current health threshold settings. See page 34-37 for details.
• health interval—Configures sampling interval between health statistics checks. See page 34-38 for
more information..
• show health —Displays health statistics for the switch, as percentages of total resource capacity. See
page 34-39 for more information.
OmniSwitch
Monitoring Resource Availability from Multiple Ports and Switches
NMS Workstation
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