Physical and underlying sub interfaces show different metric values in Performance Management

Article Id: 144490

Status: Published

Updated On: 05-02-2020 10:43

Products:

CA Infrastructure Management , CA Performance Management - Usage and Administration , CA Performance Management - Data Polling , DX NetOps

Issue/Introduction:

Sub Interfaces on our devices are showing high utilization where the physical port itself shows shows low to no traffic at all. Is this expected or could it relate to a counter issue?

Cause:

Different speeds on the different interface items result in different X and Y labels/ratios making the charts look incorrect at first glance.

Environment:

All supported Performance Management releases

Resolution:

When comparing reports in this scenario it's important to be mindful of the Speed set on the target interface.

One set to 10 MB/s will have lower looking Utilization values than one with a 2.05 MB/s speed.