Hi Thanks for your answer and below more log related to the issue.
the problem that after this log the switch has been restarted.
11/04/2016 07:10:43.78 MSM-A: snmpMaster initialization complete
11/04/2016 07:10:43.49 MSM-A: DOS protect application started successfully
11/04/2016 07:10:43.46 MSM-A: Module in Slot-5 is inserted
11/04/2016 07:10:42.42 MSM-A: Module in Slot-2 is inserted
11/04/2016 07:10:42.22 MSM-A: **** tftpd started *****
11/04/2016 07:10:42.13 MSM-A: snmpSubagent initialization complete
11/04/2016 07:10:41.67 MSM-A: **** telnetd started *****
11/04/2016 07:10:41.51 MSM-A: Module in Slot-1 is inserted
11/04/2016 07:10:41.49 MSM-A: Node State[1] = INIT
11/04/2016 07:10:41.40 MSM-A: Hal initialization done.
11/04/2016 07:10:41.09 MSM-A: Network Login framework has been initialized
11/04/2016 07:10:40.56 MSM-A: Module in MSM-A is inserted
11/04/2016 07:10:39.99 MSM-A: Module in power supply slot 3 is inserted.
11/04/2016 07:10:39.86 MSM-A: Module in power supply slot 2 is inserted.
11/04/2016 07:10:39.69 MSM-A: Module in power supply slot 1 is inserted.
11/04/2016 07:10:38.91 MSM-A: Switch is operational
11/04/2016 07:10:38.59 MSM-A: Switch is operational
11/04/2016 07:10:38.42 MSM-A: Module in fan slot 1 is inserted
11/04/2016 07:10:38.06 MSM-A: telnetd listening on port 23
11/04/2016 07:10:37.70 MSM-A: Starting hal initialization ....
11/04/2016 07:10:33.44 MSM-A: DM started
11/04/2016 07:10:33.40 MSM-A: The Node Manager (NM) has started processing.
11/04/2016 07:10:32.66 MSM-A: EPM Started
11/04/2016 07:10:32.65 MSM-A: Booting after System Failure.
11/04/2016 07:10:31.49 MSM-A: Changing to watchdog warm reset mode
