Flow - on/off/'n/a': what is the diff?

Products

• CA Infrastructure Management
• CA Performance Management - Usage and Administration
• DX NetOps

Issue/Introduction

We have recently added Flow to CAPM.  Can you please:

Explain to me the difference between Flow on/off/ 'n/a' 

Flow column values 

Interface Flow state value meaning in Performance Management

Environment

Release : 3.7

Component : IM Reporting / Admin / Configuration

Resolution

on = Interface collecting flow data on NFA
off = Interface in NFA but not collecting data
n/a - Interface not in NFA