The free memory is reduced over a period of 6 to 7 months, eventually resulting in a reboot. <185> Jun 4 05:42:17 0.0.0.0-1 SIM[Cnfgr_Thread_]: sim_util.c(4302) 12 %% ALRT Switch was reset due to powe...The free memory is reduced over a period of 6 to 7 months, eventually resulting in a reboot. <185> Jun 4 05:42:17 0.0.0.0-1 SIM[Cnfgr_Thread_]: sim_util.c(4302) 12 %% ALRT Switch was reset due to power disruption or unexpected restart.(error[0x0]). [Node-01: cshmd: hm.alert.raised:alert]: Alert Id = ClusterIfIslDownWarn_Alert , Alerting Resource = CS2/Slot: 0 Port: 55 100G - Level raised by monitor ethernet-switch The ISL links come up when the switch is back online and the alerts are cleared.