PMDF-X400 provides support for the X.400 Reliable Transfer Service over two network transport protocols:
On OpenVMS VAX, OpenVMS Alpha, and Digital UNIX, OSI Transport is provided through DECnet/OSI. The version of DECnet/OSI that is required depends upon your operating system version. PMDF supports any version of DECnet/OSI which works with the operating system versions that PMDF supports.
DECnet/OSI provides OSI Transport Class 0, 2, and 4 service over connection-less (CLNS) and connection-oriented (CONS) network layers. Connection-oriented service over X.25 also requires the separately licensed X.25 components of DECnet/OSI. Please contact Digital Equipment Corporation directly for specific information relating to required DECnet/OSI version numbers and components.
Note:
The use of OSI Transport services by PMDF-X400 requires that your DECnet/OSI and any related components such as X.25 CONS transport, be licensed, installed, configured, and tested before PMDF-X400 can be configured and tested.
TCP/IP support in PMDF-X400 is currently provided for the TCP/IP supplied with the operating system on UNIX (Digital UNIX or Solaris platforms), and for any of the following TCP/IP packages on OpenVMS: