Since BigIP vers 13.x the snmp layout has changed.
Currently the load balancer component doesn’t work anymore for f5.
Here’s the mib files.
mibs_f5.tar.gz
Discovery + Poller : https://gist.github.com/olivierbeytrison/31ae5cede78c171386c016c06bf1671c
snmpwalk (too big for gist) :
f5-snmpwalk.txt.gz
(Imported from https://github.com/librenms/librenms/issues/9710, Original request by: @olivierbeytrison)