Wireless Access

I need help to understand better the two band-steering parameters in client-match. 

(OAW-4650) #show rf arm-profile default-g | include Client
Client Aware                                                                 Enabled
Client Match                                                                 Enabled
Client Match Report Interval (sec)                                           30
Allows Client Match to Automatically Clear Unsteerable Clients after Ageout  Enabled
Client Match Unsteerable Client Ageout Interval                              2 Days 0 Hours
Client Match Band Steering G Max Signal (-dBm)                               45
Client Match Band Steering A Min Signal (-dBm)                               75
Client Match Sticky Client Check Interval (sec)                              3
Client Match Sticky Client SNR (dB)                                          18
Client Match SNR Delta Bound(dB)                                             10
Client Match Sticky Min Signal                                               65
Client Match Steering Timeout (sec)                                          10
Client Match Load Balancing Threshold (%)                                    20
Client Match IOS Steering Backoff Interval (sec)                             300
Client Match VBR Stale Entry Age (sec)                                       120
Client Match Max Steering Failures                                           2
Client Match Load Balancing Client Threshold                                 30
Client Match Load Balancing SNR Threshold (dB)                               30
Client Match Load Balancing Signal Delta Bound (dB)                          5
Client Match 802.11v BSS Transition Management                               Enabled
Client Match MU Client threshold                                             15
Client Match MU SNR threshold (dB)                                           30

The "RF and Roaming Optimization for Aruba 802.11ac Networks" doc recommend the following. 

Please help to understand, how band-steering works in client-match? 

Hi Victor, 

Thank you. Then how reducing the paramter Band steering g-max signal
(dbm) from -45 dbm to -10 dbm Prevents users from getting
stuck on 2.4G Hz in HD environment ? .

This is from the https://community.arubanetworks.com/aruba/attachments/aruba/unified-wired-wireless-access/83147/1/RF%20and%20Roaming%20Optimization%20for%20Aruba%20802.11ac%20Networks.pdf" target="_self" rel="nofollow noopener noreferrer">Aruba Best Practice Roaming VRD doc