Mesh from Pair Connections

You can explicitly assemble a mesh with four vertices. Configure the six pair connections (edges) using four transport definitions:

• T1 listens on port P1.
• T2 listens on port P2 and connects to port P1 on A1’s host computer.
• T3 listens on port P3 and connects to ports P1 on A1’s host computer, and to port P2 on A2’s host computer.
• T4 connects to ports P1 on A1’s host computer, and to port P2 on A2’s host computer, and to port P3 on A3’s host computer.

  Figure 60: Mesh Topology for Connection-Oriented Transport Protocols

  

Notice that all four processes necessarily use different transport definitions to join the bus. It cannot be otherwise, because connection-oriented transport definitions are fragmentary.

Also notice that the four transport definitions (T1 - T4) are each tied to specific host computers. In order to use them, the application process instances (A1 - A4) must run on those host computers, respectively. You can configure this constraint using application instance definitions that match the transport's host parameter.