Visara CNA-8000 Installation - Manual (Page 102)

Chapter 9. Host Circuit Definition
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The resulting XCA Host Circuits panel will appear similar to the one below.
Each Host Circuit must be given a virtual drop assigned to communicate through one of
the configured XCA subchannels to reach the host.
Host Circuits that have already been defined appear in the Host Identifier dropdown
control. Additional Host Circuits can be defined by pressing the [New] button. A more
complete description of the controls on this panel follows:
Field Definitions:
Host Identifier: Provides a dropdown list of Host Circuits that are already defined.
When the [New] button is pressed, the control becomes a data entry field, allowing you to
enter a new name.
XCA Subchannel: This dropdown control lists all of the defined XCA subchannels.
These are defined on the ESCON/FICON Subchannels panel.
PUID: This field allows you to define the PUID that will be sent inbound to VTAM to
be matched against the Switched PU definition. The first three digits are matched to the
IDBLK parameter in the VTAM PU2 definition, and the last five digits are matched to
the IDNUM parameter in the VTAM PU2 definition.
Virtual MAC Address: Since the Host Circuit is to appear to be located downstream to
one of the network adapters (virtually) the Host Circuit must have a MAC address
associated with it. The value of the MAC address itself is not important as long as it is
unique to the network, giving VTAM a proper destination to direct the traffic to.