You can customize the reports from the Orion Report Writer (Start > Programs > SolarWinds Orion > Alerting, Reporting, and Mapping > Report Writer). There is a tutorial for working in the Report Writer HERE.
There are several reports that are listed under Historical Traffic Reports that can be limited to Cisco by editing the Filter Results tab or you can build a new report but make sure you choose to build a Historical - Interface Traffic report.
Thanks Jason. That should get me what I need.