Xerox 4500 ps eth instruction manual Host SNA SAA

SNA IPDS and SCS Printing from MVS or VM

Xerox 4500 PS ETH, Inst. & Operator's Guide

14.4Configuring 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.

	HOST
			SNA	SNA
SNA
		SAA				PrintServer
SNA			IPX
					IPX	Client

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.

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