Defining IQD channels

Internal queued direct (IQD) communication channels are virtual attachments and require no real hardware. However, they do require CHPID numbers, and they do need to be defined in the IOCDS. Also, beginning with the 2964 models, IQD channels require the VCHID keyword.

Define the minimum number of channel paths needed for separation of communicating LPs. Each IQD channel path represents one internal LAN. If you have no requirement to separate LAN traffic between your applications or are not enabling a special IQD function, only one IQD channel path needs to be defined in the configuration.