I need a detailed explanation of FoundationSuiteK9 pertaining to ISR 4331 routers. Also what is the purpose of the command below and what is the impact of not having this command in your router? license boot suite FoundationSuiteK9

Is there a way to verify VPN use and uptime?  I believe that the below command will only show output for the duration of the security association, which could be for an unknown time period.  Do you know a way to verify when counters were last cleared...