The Edge gets its policy from the SmartCenter server over the SofaWare Management Server process (sms).
The interval of pulling the policy is defined over Global Properties -> UTM-1 Edge Gateway -> Update configuration settings every XX minutes
If you want to update an Edge immideately, you can do this be using the WebUI (access your SmartCenter over http://:9283/) or you can use the command line.
/opt/CPEdgecmp-R7x/bincontains the tool
swcmdwhich can be used to issue commands directly to the Edge appliance.
swcmd UpdateNowAllwill tell the Edges to update their policy immediately.
swcmd Rebootwill reboot the gateway.