Issues and the Network Scorecard

The Network Scorecard appears in both the Dashboard and in the Network Analysis > Issues page.

The Network Scorecard (Network Analysis tab > Issues tab) provides a high-level performance metric for the managed network. NetMRI measures the network's daily stability and correctness and calculates the normalized Scorecard value based on a statistical analysis of all issues discovered for that day. Counts of the three primary Issue types (Info, Warning, and Error) also are shown.

The Network Scorecard shows the scorecard value for the current day and a two-color graph showing the stability and correctness values over the selected time period, which by default is the last day's measurement.

Stability and correctness values are two data sets that cumulatively add up to the Overall Score in the Scorecard. Each data set has a maximum value of 5.0.

Stability issues are caused by events such as excessive spanning-tree topology changes, unstable links, congestion, and excessive CPU/memory utilization. Correctness issues are derived from configuration or design errors such as duplicate VLAN ID/name pairs or inconsistent routing protocol timers. Stability and correctness are measured across a variety of functional areas of the network.

The Network Scorecard table shows correctness and stability values by component area (hover over an indicator rectangle to see the numerical values). Stability and correctness "penalties" associated with each issue depend on the type and severity of the issue. Stability and correctness penalties for all components of the network combine to create the overall Network Scorecard value, expressed as the Overall Score in the upper right corner of the Scorecard.

Select a device group in the right panel of the Issues page. The Network Scorecard adjusts to show the score and the Issues for the respective device group.