POE settings on ZyXEL GS1900-8HP v2 Switch

Installing and Using OpenWrt
1

Hi All

I've got vanilla Openwrt 23.05.4 running on my ZyXEL GS1900-8HP v2 Switch and am well chuffed. It was super easy to setup from the instructions on toh and it went through fine using the HTTP method of uploading in the OEM console. The POE+ seems to be working fine as well because it's powering my Unifi LR6 with no issues and needed no special config to get it running.

I'm wondering if it's possible/advisable to switch off auto POE on all the other ports; the only reason being I sometimes hear a bit of a buzzing sound (very high pitched and very quiet) coming from the switch when I plug a new device in. So my question is:

  1. Are there any benefits to switching off POE completely on all the ports that don't need it?
  2. Can that be done easily? I'm guessing it's not through LUCI but can be done through SSH by adjusting something in the /etc/config/poe file.

The current contents of /etc/config/poe is as follows:

root@OpenWrt:~# cat /etc/config/poe
config global
        option budget   '170'

config port
        option enable   '1'
        option id       '1'
        option name     'lan1'
        option poe_plus '1'
        option priority '2'

Thanks very much

Happy