If something goes crazy on a map and the server needs a reset first try rcon_reload this will restart the map but will first unload and reload all running plugins and game settings. This is a much more efficient way to try to correct normal gameplay glitches.
However some times this can be really messed like when there are ghost players wasting slots (thanks valve) these need to be fixed by a rcon_restartCode:rcon_reload
The rcon_restart command will crash the server as soon as it is entered. This way it will restart via the auto crash detection immediately. Admins that abuse this power will have rcon powers taken away and or will be perma banned from all servers. The restart command should only be used in a situation where the server physics are broken and map switching nor switching around sv_turbophysics along with other possible cvars does not fix the problem.Code:rcon_restart