PMDF-MB400 is implemented as a single PMDF channel named XAPI_LOCAL, responsible for converting between RFC 822 and MIME, the addressing format and message representation used by PMDF, and the P1/P2/P22 representation used by X.400. The conversion is performed by the X400_TO_MIME and MIME_TO_X400 executable programs which service the XAPI_LOCAL channel. These same two channel programs also manage the XAPI interface with MAILbus 400.
Note:
Unlike PMDF-X400, which uses a two step procedure and multiple channels, PMDF-MB400 uses only a single channel, XAPI_LOCAL, since it does not need to implement X.400 Reliable Transfer Service (RTS).
The PMDF-MB400 configuration utility¹ will create the file
x400.chans in the PMDF table directory² containing
the definition of the above-mentioned channel.
pmdf configure mb400 on UNIX.PMDF_TABLE: on OpenVMS;
/pmdf/table on UNIX.