Gathering Performance Data from Interface Groups

Performance data consists of utilization rates, error rates and broadcast levels for the interfaces that are gathered into an interface group. You can also view the same performance data for each interface in the interface viewer.

Performance data includes configured speed, throughput, percent utilization, percent errors, percent broadcasts, and percent discards. Additional information can be displayed through selections from the Columns drop-down list available via column header menus.

By default, performance data collection is disabled for most interface groups. NetMRI provides two ways to enable performance data collection:

To enable performance data collection for an interface group: In the Settings icon > Setup section > Collection and Groups page > Groups tab > Interface Groups side tab, hover the mouse over the Action icon and choose Edit, and activate the Performance Statistics Collection checkbox.

By default, collection takes place daily. For some interfaces, you may need to collect performance data more frequently. To do so, select a different setting from the Frequency dropdown. Values include Daily (the default), and incremental values from 15 minutes to 2 minutes.

Note

You can use more-frequent data collection only on a select number of interfaces. Up to 10% of the total interfaces up to the Interface Limit in the managed network, based on the NetMRI license.

To enable performance data collection for a specific interface: Open the interface in the Interface Viewer. In the Settings section > General Settings page, enable Performance Statistics Collection by selecting Enabled from the dropdown menu and clicking Update. This setting overrides the parent interface group's setting.

Performance data collection uses interface groups to determine the data types to be collected and stored for each monitored interface. Because collection runs continuously, it needs to be informed when interface group definitions have been changed. Notification is done automatically if one or more group definitions have been changed since the last group generation process was performed (either scheduled or manual). If a definition changes while collection is taking place, the changes will not take effect until the next collection run.

At that point, interface data collection resumes collecting limited data for all interfaces to determine which should be further processed, based on the new definitions.

Note

Infoblox recommends that interface group definitions be changed only when necessary, or when data collection is disabled. This reduces the workload on the appliance.

Use interface groups for suppression of certain interface related issues and to modify thresholds for their appearance. Interface group issue suppression removes the need to manually suppress undesirable issue instances and allows for instances that have yet to be raised — and to be suppressed — to be suppressed before they are even raised. You can review interface group issue suppression settings at the Settings icon > Issue Analysis section > Issue Group Settings page.