Port Utilization Thresholds


Port Utilization Thresholds
 
 
Threshold monitoring can be enabled for the port utilization values described in the following table.
 
Important: Ports configured for half-duplex do not differentiate between data received and data transmitted. (The transmitted and received percentages are combined.) Therefore, to avoid redundant alarms, it is recommended that only the receive or transmit utilization threshold be configured.
 
Saving Your Configuration
When you configure thresholds they are not permanent unless you save the changes. When you have completed configuring thresholds, save your configuration as described in the Verifying and Saving Your Configuration chapter.
 
Receive Port Utilization Thresholds
Receive port utilization thresholds generate alerts or alarms based on the utilization percentage of each configured port in relation to data received during the specified polling interval. This threshold is configured on a per-port basis.
Alerts or alarms are triggered for receive port utilization based on the following rules:
Enter condition: Actual percent utilization of a port for received data > or = High Threshold
Clear condition: Actual percent utilization of a port for received data < Low Threshold
If a trigger condition occurs within the polling interval, the alert or alarm will not be generated until the end of the polling interval.
 
Configuring Receive Port Utilization Thresholds
Use the following example to configure the polling interval over which to measure receive port utilization
configure
  threshold poll port-rx-utilization interval <seconds>
  port <port-type> <slot#/port#>
     threshold rx-utilization <high_thresh_%> [ clear <low_thresh_%> ]
     threshold monitoring
      end
 
Transmit Port Utilization Thresholds
Transmit port utilization thresholds generate alerts or alarms based on the utilization percentage of each configured port in relation to data transmitted during the specified polling interval. This threshold is configured on a per-port basis.
Alerts or alarms are triggered for transmit port utilization based on the following rules:
Enter condition: Actual percent utilization of a port for transmit data > or = High Threshold
Clear condition: Actual percent utilization of a port for transmit data < Low Threshold
If a trigger condition occurs within the polling interval, the alert or alarm will not be generated until the end of the polling interval.
 
Configuring Transmit Port Utilization Thresholds
Use the following example to configure the polling interval over which to measure transmit port utilization:
configure
  threshold poll port-tx-utilization interval <seconds>
  port <port-type> <slot#/port#>
     threshold tx-utilization <high_thresh_%> [ clear <low_thresh_%> ]
     threshold monitoring
      end
 
High Port Activity Thresholds
High port activity thresholds generate alerts or alarms based on the peak utilization percentage of each configured port during the specified polling interval. This threshold is configured on a per-port basis.
Alerts or alarms are triggered for high port activity based on the following rules:
Enter condition: Actual percent peak utilization of a port > or = High Threshold
Clear condition: Actual percent peak utilization of a port < Low Threshold
If a trigger condition occurs within the polling interval, the alert or alarm will not be generated until the end of the polling interval.
 
Configuring High Port Activity Thresholds
Use the following example to configure the polling interval over which to measure for high port activity:
configure
  threshold poll port-high-activity interval <time>
  port <port-type> <slot#/port#>
     threshold high-activity <high_thresh_%> [ clear <low_thresh_%> ]
     threshold monitoring
      end
 
 

Cisco Systems Inc.
Tel: 408-526-4000
Fax: 408-527-0883