This is the new problem i faced in Supervisor Engine 720 -3B. All my sites were trasmitting well but last day my redundant Supervisor Engine 720 was showing as unknown when i check show module .I tried to recover it by console and checked the IOS image, it was fine and booted then it comes up.But when we tried to reboot it goes again into ROMMON. I checked all the parameters for resolving the same. I have show tech for same,will attach the same. As the same problem is for all my 7 sites now,what could be the reason for same ?