Creating a CTC connection

Choose CTC Connection... from the Create menu or press Create... in the CTC Connections dialog to open the Create CTC Connection dialog. Select the two CHPIDs at either end of the CTC connection by pressing the appropriate CHPID...button and choosing a CHPID from the resulting list box. Double-click on a processor in the list with a plus (+) sign to expand it to display all possible target interfaces (CHPIDs); double-click on a processor with a minus (-) sign to collapse it. Select a CHPID and press OK; alternatively, double-click on the CHPID.

Figure 1. Create CTC Connection

Create CTC Connection dialog. This dialog is accessible from the HCM product and includes accessible help information.

Selecting OK will validate whether or not the CHPIDs may be involved in a CTC connection. One of the following conditions must be met:

Neither of the CHPIDs are physically connected to anything, (for a new point to point), or
Both of the CHPIDs are connected to a switch, both CHPIDs have the same dynamic switch defined, and both CHPIDs have physical access to the dynamic switch either directly or via at least one port-to-port connection from the entry switch to the dynamic switch. If a CHPID is on a chained switch, and there is more than one possible route between the chained switches (that is more than one choice for the exit link address), the user will be prompted to choose one, or
(usual case) The CHPIDs are already physically connected to each other, but neither CHPID has any control units defined, (to fix up a point-to-point).

If none of the above conditions are met, you will be informed and the dialog will remain displayed so that different CHPIDs may be chosen.

Once this has been done, the Create CTC Connection dialog will disappear, and be replaced with either the Accept Proposed CTC Control Units dialog or the Edit CTC Connection dialog, allowing the user to specify the control units and devices used in the connection.