Time Based Group Statistics

Use the Time Based Group Statistics page to define criteria for collecting time-based statistics for interface traffic. The time-based statistics can be useful for troubleshooting and diagnostics purposes. The statistics application uses the system clock for time-based reporting, so it is important to configure the system clock (manually or through SNTP (Simple Network Time Protocol)) before using this feature.

To access this page, click System > Statistics > Time Based > Group in the navigation menu.

Use the buttons to perform the following tasks:

• To add a set of time-based traffic group statistics to collect, click Add and configure the desired settings.
• To delete one or more time-based statistics groups, select each entry to delete and click Remove.

Time Based Group Statistics Fields

Field	Description
Group	The type of traffic statistics to collect for the group, which is one of the following: Received: The number of packets received on the interfaces within the group. Received Errors: The number of packets received with errors on the interfaces within the group. Transmitted: The number of packets transmitted by the interfaces within the group. Received Transmitted: The number of packets received and transmitted by the interfaces within the group. Port Utilization: The percentage of total bandwidth used by the port within the specified time period. Congestion: The percentage of time within the specified time range that the ports experienced congestion.
Time Range	The name of the periodic or absolute time range to use for data collection. The time range is configured by using the Time Range Summary and Time Range Entry Summary pages. The time range must be configured on the system before the time-based statistics can be collected.
Reporting Methods	The methods for reporting the collected statistics at the end of every configured time range interval. The available options are: None: The statistics are not reported to the console or an external server. They can be viewed only by using the web interface or by issuing a CLI command. Console: The statistics are displayed on the console. E-Mail: The statistics are sent to an e-mail address. The SNTP server and e-mail address information is configured by using the appropriate Email Alerts pages. Syslog: The statistics are sent to a remote syslog server. The syslog server information is configured on the Logging Hosts page.
Interfaces	The interface or interfaces on which data is collected. To select multiple interfaces when adding a new group, [Ctrl] + click each interface to include in the group.

• Click Refresh to refresh the data on the screen with the present state of the data in the switch.
• To add a set of time-based traffic group statistics to collect, click Add and configure the desired settings.
• To delete one or more time-based statistics groups, select each entry to delete and click Remove.