IPX/SPX Configuration and Management Manual

Introduction to NonStop™ IPX/SPX
IPX/SPX Configuration and Management Manual—425731-001
2-8
Distributed Systems Management (DSM) Interfaces
Application processes request that the NonStop™ IPX/SPX software create a socket
when needed. The NonStop™ IPX/SPX software returns a socket number that the
application uses to refer to the new socket. The application then (optionally) binds the
socket to a specific local address (the IPX or SPX socket) and sends or receives data on
the socket. When data transfer is complete, the application can (optionally) shut down
the socket and destroy (close) it. Once a socket open is completed, the socket is
persistent across processor crashes and process switchovers.
The sockets-library routines provide access to both NonStop™ IPX/SPX and NonStop™
TCP/IP. The socket() call can open either a TCP/IP process or an NonStop™ IPX/SPX
process, depending upon the arguments passed to it. Applications such as Telserv can
access both TCP/IP and NonStop™ IPX/SPX at the same time through the Sockets
interface. For a detailed description of the sockets-library routines available, refer to the
TCP/IP and IPX/SPX Programming Manual.
Figure 2-4
on page 2-6 shows the relationship of the Sockets interface to the other
NonStop™ IPX/SPX components.
Distributed Systems Management (DSM) Interfaces
The interfaces of the DSM subsystem enable you to configure, control, and monitor
NonStop™ Himalaya S-series subsystems. DSM interfaces include the Subsystem
Control Facility (SCF), the Event Management Service (EMS), the Subsystem
Programmatic Interface (SPI), and the Subsystem Control Point (SCP).
SCF is an interactive interface that enables you to configure, control, and monitor
NonStop™ IPX/SPX. Figure 2-4
on page 2-6 shows the relationship of the SCF
interface to the other NonStop™ IPX/SPX components.
Section 3, Managing NonStop™ IPX/SPX With the Subsystem Control Facility (SCF)
,
describes the DSM interfaces to the NonStop™ IPX/SPX subsystem and details the SCF
commands.
Protocols and Frame Types
NonStop™ IPX/SPX supports the communications protocols and frame types described
in the following subsections:
•
Frame Types described on this page
•
Internetwork Packet Exchange (IPX) Protocol on page 2-9
•
Sequenced Packet Exchange (SPX) Protocol on page 2-9
•
NetWare Core Protocol (NCP) on page 2-9
•
Routing Information Protocol (RIP) on page 2-10
•
Service Advertising Protocol (SAP) on page 2-10