Our customer is using LMS3.01. They have a couples of switch stacks comprising 4-9 3750G switches per stack. It is found that in the topology map of the campus manager, the switch stack would not change color when one of the member switch is power down. The switch icon in the map remains green even after we start the data collection. Is this normal ? In addition, if the failing switch is the master switch, then the LMS even can not receive the syslog and therefore there is not way to detect the master switch failure . Any workaround for this ?