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SNA IPDS and SCS Printing from MVS or VM
Xerox 4500 PS ETH, Inst. & Operator's Guide
131
14.4 Configuring NetWare SAA gateway for direct
SNA connection to PS
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 ETH 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
ETH.
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 ETH will always be a downstream
PU.
SNA
Client
SNA
SNA
IPX
IPX
SAA
SNA
HOST
PrintServer