How aliases are used depends on how the BMC TrueSight Infrastructure Management Servers are deployed

The deployment scenario for BMC TrueSight Infrastructure Management Servers can determine how aliases are used, as in the following examples:

• Multiple BMC TrueSight Infrastructure Management Servers using the same CMDB.
  In this case, the same service model is shared and the CIs on the BMC TrueSight Infrastructure Management Servers have the same alias.
• Multiple BMC TrueSight Infrastructure Management Servers using different CMDBs.
  In this case, there are multiple service models. The expectation is that the aliases are the token IDs used by event sources and that the cell or other aliases are the same.
• Multiple BMC TrueSight Infrastructure Management Servers using a local cell or Service Model.
  In this case, you are expected to set the same alias for the same CI.