Never Never run ur switch on internal RCM or other free running clocks. Otherwise in long ,u may experience unexpected & strange problems. Always try to get it from some some Level1 or ILD gateway or from any Operator using Cesium Clock Module.
Never compromise on Network Sync. This is the heartbeat of Network.
NSSTP(in AXE) prinouts the status of all connected clock sources(DIP/RCM/CCm etc) To get the dynamic data of clocks sources use NSDAP; (it displays Frequence/Wander Deviation & Frequence Memory(for RCM)