For commit mode 0 interactions, the tpipe name is the client ID that is used for the interaction. For commit mode 0 interactions, the IMS OTMA asynchronous hold queue that is associated with the tpipe has the same name as the client ID.
For commit mode 1 interactions, the tpipe name is the IMS Connect port number that is used for the interaction. For Local Option the tpipe name is the word, LOCAL. Each port has a tpipe that is used for all clients that run commit mode 1 interactions on that port.