My only method of seeing when I network entity was down or unreachable, beyond the most recent occurrence, is solarwinds orion or similar. That gives me a history beyond the latest incident, even though it can be caused by multiple issues at that poi...
I just logged into a cisco device (albeit it is a catalyst 2900L switch) and ran enablethen ran term len 0then sho conf and it did not paginate (or what ever you want to call that)