IPX/SPX Programming Manual

Introduction to NonStop IPX/SPX
HP NonStop IPX/SPX Programming Manual—528022-001
1-5
Processes
Processes
The NonStop IPX/SPX subsystem contains the IPX Manager (IPXMGR) process and
one or more IPX Protocol (IPXPROTO) processes.
IPXPROTO processes are implemented as process pairs, which provide support for
the NetWare protocols (described in Addressing on page 2-1). Each IPXPROTO
process is associated with exactly one LAN port (for D-series RVUs) or one SLSA LIF
(for G-series RVUs).
IPXPROTO uses the QIO subsystem for sending and receiving frames to and from the
LAN. Because it needs QIO, you must configure the IPXPROTO process on the same
CPU as the TLAM IOP that owns the port for D-series RVUs. Similarly for G-series
RVUs, IPXPROTO must match its primary and backup CPUs to the CPUs in its LIF
Access List. You do not need to specify the CPU for the IPXPROTO process if you use
the SCF ADD PROCESS command to create it; in this case, the backup and primary
CPUs are determined automatically. (See the IPX/SPX Configuration and Management
Manual.) However, if you create the IPXPROTO by using a TACL RUN command, you
must determine the appropriate primary and backup CPUs for IPXPROTO and specify
them in the RUN command. The SAP table of services is stored in the IPXPROTO
process. For details about determining the correct CPUs for the primary and backup
IPXPROTO processes, see the IPX/SPX Configuration and Management Manual.
The IPXMGR process provides the following DSM functions for NonStop IPX/SPX:
•
Management for all IPXPROTO processes on the system
•
Routing management requests to the appropriate IPXPROTO process