The Sync Point support provided by SNA Server assumes a particular implementation architecture by the vendor, as follows:
Issuing all APPC verbs.
Implementing the architected Resynchronization TP.
Implementing the architected Conversation-Protected Resource Manager (C-PRM) component of the LU.
Implementing the architected SPS component of the LU.
The Transaction Monitor must reside on the same machine as the SNA server containing the LUs for which it is providing Sync Point services. Both incoming and outgoing Sync Point conversations for this Transaction Monitor will be routed through this SNA server only.
Detailed descriptions of the three architected Sync Point components can be found in SNA LU6.2 Reference: Peer Protocols published by IBM.