There is no mention of this requirement in v8.2.0 documentation. In prior releases of ZMF, a XCH port was not required. Adding a XCH port number, if not licensed to run the XCH application, will result in other errors in the ZMF task.
Eventually we discovered that the CMN and XCH ports were blocked from the client desktop machine to the Serena SERVER started task running on the mainframe. Whilst most communication for ZMF4ECL goes from the client desktop to the web server to the mainframe Server started task and then back again, some functions (e.g. data upload and download) bypasses the web server and is transmitted directly from the client desktop to the mainframe Server started task and back again. The documentation will be updated in due course to specify this requirement.
In ZDD 713, users are unable to logon to the CMN Port only, users are forced to logon to the XCH port which opens up access to datasets and jobs that they would previously not have had access too when running ZDD 7.1.2.
================================================================================ This applies only to those customers who reserve the CMN and XCH ports in the TCP/IP profile dataset.
