The customer needs to Modify Interface Speed Overrides as is described on Guide:
https://techdocs.broadcom.com/content/broadcom/techdocs/us/en/ca-enterprise-software/it-operations-management/performance-management/3-7/using/context-pages.html#concept.dita_97e8bb96b2f771c9e666d1d8b0c5e85cdc646f66_EditItemProperties
PM Release : 3.7