MPE File Names, WRQ protocol
This filename structure is used for host filenames during file transfers, and it also determines how the filenames display in the Transfer dialog box after clicking the Show Host Files button.
Reflection supports four name spaces for filenames:
MPE filenames are a subset of the POSIX names. All MPE filenames are visible from within POSIX (for example, PCLINK2.PUB.SYS appears as /SYS/PUB/PCLINK2), but only POSIX files whose names are also valid as MPE filenames are visible from MPE.
This option is for those users who used the ".groupname" construct for the host filename. This allowed you to transfer files into a different account. For example, specifying ".PUB" transferred files into the "PUB" group. With the introduction of POSIX, this behavior changed. By default, PCLINK2 interprets the ".PUB" as a POSIX name and therefore attempts to transfer the files as a single file named ".PUB". If the name space is set to MPE-Only, the old behavior is performed.
There is an alternative to setting the name space to MPE-Only. If the name space is left set to MPE, then the host name may be specified as "@.groupname" as in "@.PUB". This will result in the same behavior as described above for the MPE-Only name space.