TCP/IP Configuration and Management Manual

TCP/IP Configuration and Management Manual—427132-004
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2 Overview of NonStop TCP/IP
This section describes the NonStop TCP/IP subsystem in relation to other NonStop
data communications subsystems.
NonStop TCP/IP provides access to a network, allowing you to use FTP to transfer
files to your NonStop system, and run web-based services through facilities described
in Appendix B, NonStop TCP/IP Processes and Protocols.
NonStop TCP/IP runs as a process pair on the HP NonStop operating system. It allows
communication between heterogeneous systems in a multi network environment.
NonStop TCP/IP software conforms to a number of Request for Comments (RFCs),
Internet Engineering Notes (IENs), and Military Standards (MIL-STDs) maintained by
the Defense Data Network (DDN) at the DDN Network Information Center (NIC)
operated by SRI International in Menlo Park, California. The RFCs, IENs, and
MIL-STDs define the protocols implemented by the NonStop TCP/IP software.
Conformance to DDN specifications includes operation of the Internet Protocol (IP)
over Ethernet LANs.
Figure 2-1 shows a high-level view of the NonStop TCP/IP subsystem and its
relationship to the QIO, SLSA, ATM and X25AM subsystems, and to various LAN,
WAN and ATM adapters. Figure 2-1 also shows the management interfaces involved in
running TCP/IP. Descriptions of the system components shown in Figure 2-1 follow the
figure.
Note. Only Ethernet communications through the G4SA are available on the Integrity NonStop
server; to use other protocols and adapters, the Integrity NonStop server must be connected to
an IOMF2 customer replaceable unit (CRU) in a NonStop S-series I/O enclosure. For more
information, see the Introduction to Networking for HP Integrity NS-Series Servers.