TCP/IP (Parallel Library) Configuration and Management Manual

HP NonStop TCP/IP (Parallel Library) Configuration and Management Manual—522271-006
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5
SCF Reference for Parallel Library
TCP/IP
This section provides information about:
•
The Subsystem Control Facility (SCF)
•
SCF commands available for PTCPIP (to find a command quickly, see Table 5-4 on
page 5-9.)
•
The PTrace facility
SCF for Parallel Library TCP/IP
SCF provides an operator interface to an intermediate process, the Subsystem Control
Point (SCP), which in turn provides the interface to the I/O processes of the various
subsystems.
The Parallel Library TCP/IP subsystem runs on the NonStop operating system and
supports subnets using Ethernet LANs.
Ethernet subnets use the ServerNet LAN systems access (SLSA) subsystem to
provide access to Ethernet local area networks (LANs). The Parallel Library TCP/IP
subsystem is a client of the SLSA subsystem which includes the LAN manager
(LANMAN) and LAN monitor (LANMON) processes.
SCF Commands for TCPMAN Compared to SCF Commands for
TCPSAM
This section describes SCF command syntax for both the TCPMAN and the TCPSAM
processes.
TCPSAM SCF syntax differs from TCPMAN syntax because TCPSAM provides
backward-compatibility for applications. Existing applications expect objects to have
the format $process-name.#subordinate-object-name which is the format that
TCPSAM uses. By contrast, TCPMAN objects use the format $process-
name.#TCPMON-name.subordinate-object-name.
The TCPSAM and TCPMAN processes yield different command results. For example,
STATUS PROCESS $ZZTCP yields information about the primary and backup
processor and identification numbers, whereas, STATUS PROCESS $tcpsam-name
yields more extensive information (comparable to the STATUS PROCESS command in
conventional TCP/IP.) In addition, when TCPSAM nonsensitive SCF commands are
applied to the PROCESS, ROUTE, and SUBNET objects, the information returned
reflects only those objects in the processor where the TCPSAM process resides. To