Link Configuration
Figure 5-22. CTC Link Properties
Figure 5-22 shows the properties that must be configured for CTC Links.
Complete these fields as follows:
Mainframe IP Address – The IP address of the mainframe this connection is to communicate with. This must match the HOME IP address assigned in the TCP/IP Profile.
Link Description – A description of the link being defined.
Channel Adapter – Use your mouse to select the PCI ESCON Adapter this connection is to be defined on.
ESCON Path – Use your mouse to select a path from those defined for this ESCON adapter. If no paths are available, you will have to define the ESCON configuration. Click on Configure ESCON… Refer to Chapter 4.
Read Device – Select the device from the list of available devices on the selected Path. The device must be the first of two consecutive devices that will be used by this connection. If no devices are available, click on Configure ESCON…
IOBufferSize – The IO Buffer Size is defined in the Mainframe’s TCP/IP configuration. The value entered in this field must be between 8192 and 65535 and must match the value defined on the mainframe. In the mainframe TCP/IP Profile this value is set with either the LARGEENVELOPEPOOLSIZE or IOBUFFERSIZE parameter depending on the version of TCP/IP in use. The recommended IOBufferSize for CTC connections is 65535.
36 PCI ESCON Adapter Installation Guide