About the Network Scorecard

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

NetMRI analyzes the network's stability and correctness and calculates a normalized Scorecard value based on all the issues generated for that day. The Network Scorecard provides the high-level performance metric for the managed network. The Network Scorecard shows the Overall Score value for the current day, the constituent stability and correctness values, and the historical trend over the selected time period.

Stability and correctness are measured across a variety of functional areas across the network. The stability and correctness penalties associated with each issue depend on the type and severity of the issue.
Nine clickable issue categories — Configuration, Devices, Interfaces, Routing, Security, Subnets, VLANs, VoIP, and Wireless — display the list of issues appearing throughout the network for that category. If the bottom pane shows nothing for the category, that indicates no issues for that category currently exist in the network.

• Stability issues are caused by events like excessive spanning tree topology changes, unstable links, congestion, or 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.

The Network Scorecard table summarizes the correctness and stability by component area. You can hover over the colored rectangles to see the specific values. The stability and correctness penalties for all components are combined to create the overall scorecard value, the Overall Score number in the Network Scorecard.

The exact value of the Network Scorecard value itself is not very important. Rather, it is the relative change in the scorecard value over time that is important. Consequently, the scorecard value is plotted in the Scorecard History chart to make historical comparisons easy. The scorecard value will vary from day to day, but the desired trend over time should be rising, not falling. After two or three weeks of operation, the variability of your network's scorecard value should become evident.

The table at the bottom of the Index tab lists the issues used to generate the Network Scorecard and Network History.