IPX/SPX Configuration and Management Manual

Protocol Interfaces and Services for NonStop™
IPX/SPX
IPX/SPX Configuration and Management Manual—425731-001
A-13
Examples of NonStop™ IPX/SPX Functions
Examples of NonStop™ IPX/SPX Functions
This section shows examples of how the NonStop™ IPX/SPX subsystem functions
advertise a server application on the NetWare LAN and establish a connection between
the application and a client. It describes the formation and processing of IPX protocol
packets by the IPXPROTO process.
Figure A-6
shows the NonStop™ ODBC Server accessing the NonStop™ IPX/SPX
subsystem to advertise services through the Service Advertising Protocol (SAP). A
client workstation uses its SAP query function to learn of the ODBC Server and then
connects to the server on the NonStop™ Himalaya S-series server.
As shown in Figure A-6
, you configure and run the NonStop™ IPX/SPX subsystem
before starting the ODBC Server. (Configuring and starting the NonStop™ IPX/SPX
subsystem is described in Section 1, Configuration Quick Start
.) You must configure the
IPXPROTO processes that the ODBC Server needs to connect to the NetWare
environment.
Figure A-6. NonStop™ ODBC Server Initiation and Client Connection
023CDT .CDD
Client Workstation NetWare File Server NonStop
TM
Himalaya S-Series Server
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Logs onto NW file server.
Queries NW server for SAP entries.
Obtains name/address of ODBC Server.
NonStop
TM
IPX/SPX request packet is sent to Himalaya S-series system.
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2
3
4
NonStop
TM
IPX/SPX subsystem is started.
ODBC Server is started.
ODBC Server advertises services with SAP.
SAP entries are propagated to other NW servers.
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IPXPROTO strips off NonStop
TM
IPX/SPX protocol.
Request is passed to ODBC Server interface.
ODBC Server uses socket to connect to
IPXPROTO.
IPXPROTO puts ODBC Server reply into
NonStop
TM
IPX/SPX packet and sends it to
client.
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