F5 to be monitored using the Solarwinds

the interfaces can be collected with default interface mib, like with any other snmp device. Its like a linux system.

If you need more detailed information look here: https://devcentral.f5.com/articles/cacti-creating-templates-for-indexed-snmp-data.UtaF-Pv9b0M

you need the f5 mib, which you can download from your f5 device