OSPF Monitoring Tool

Hi Guys,
Is anyone knows about a Monitoring tool for OSPF ??

~~( ŊëŌ )~~

Commercial, or free? For commercial route explorer should do the job, for
free, run eg quagga or such with relevant actions on logs.

alan

I've used librenms and pandorafms for this, librenms is less setup but Pandora is more comprehensive