31000 is default connection port intended for JDBC connections. ex: jdbc:teiid<vdb>@mm://host:31000

31443 is default secured connection port intended for Admin connections ex: mms://<host>:31443

However, due to lack of restriction in the Teiid server, user can make a JDBC connection like "jdbc:teiid<vdb>@mms://host:31443", or make an Admin connection like "mm://localhost:31000" thus creates a confusion as to which form to use "mm" or "mms" and which port to use "31000" or "31443".

The reason 31443 originally created was to secure the Admin connections and to create a separate process thread pool as Admin calls are synchronous. Where are JDBC calls as asynchronous. Mixing them up might lead confusion and not to mention thread contention under heavy load. So, Teiid should restrict the use of 31000 to JDBC and 31443 to Admin traffic.