Xerox D60327 用户手册

The following will describe the normal procedures for configuring the PS
to a NetWare for SAA Gateway version 2.0. The main advantage for this
type of connection is that the print application on the mainframe has direct
printer control through VTAM.

NOTE  Most NetWare SAA installations use the IPX/SPX protocol as

downstream protocol for the workstations. The PS supports the
IPX/SPX protocols, but currently  not for SNA traffic. The
downstream protocol for the  Xerox 4500 PS TR  must be 802.2
SNA. If you wish to use the IPX/SPX protocol for downstream
printing, you will need a 3270 print emulation package on the
NetWare server.

 

 

When is a network node or PU  Downstream or Upstream?
This may cause some confusion, but is important to know when
configuring the SAA gateway.
In the above example, the following is true:

1. The host is an upstream node and PU to the SAA gateway.
2. The SAA gateway is a downstream node and PU to the host.
3. The SAA gateway is an upstream node and PU to the  Xerox 4500 PS

TR.

4. The PS is a downstream node and PU to the SAA gateway.
5. The SAA gateway is an upstream node to the NetWare client, but PU

definitions are not used on the client since the protocol used is IPX.
Other protocols could have been TCP/IP.

6. The NetWare Client is a downstream node to the SAA gateway, but

downstream link and downstream PU definitions are not used since the
protocol used is IPX.

When configuring the SAA environment, the host will always be an
upstream PU and the Xerox 4500 PS TR  will always be a downstream
PU.