LUA Correlation Tables

LUA keeps track of the sequence numbers of incoming and outgoing requests until they receive responses, until the application issues a response to an incoming request, or until the PLU responds to an outgoing request. These numbers are recorded in Personal Communications and Communications Server areas called correlation tables.

Under immediate response mode, only a few outstanding requests can be generated in a session, typically one at most. Under delayed response mode, the number can be larger.

The LUA correlation tables are managed dynamically. LUA can record any number of responses. If a very large number of responses accumulate (probably due to a program logic error), the server runs low on memory and Personal Communications might shut down.