We have the same problem.
We have one switch in chasis and when it stop working we get:
Component Class Chassis
CH_CFG_ESM1_ASSERT
1102
A
IPMI
Chassis Mis-configuration Fault
A Switch Module is required but not present in Switch Slot 1
contributing to a Chassis Mis-configuration fault.
Missing Switch Module in Switch Slot 1
Insert a Network Switch Module in Switch Slot 1
After we take switch out of chasis and put it back, the system start working normaly.
This happends once, twice a month, there is no rule.
Any clue, help ???