TCP/IP Configuration and Management Manual

Overview of NonStop TCP/IP

TCP/IP Configuration and Management Manual—427132-004

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GESA

A single-port ServerNet adapter that provides 1000 Mbps data transfer rates between

NonStop S-series systems and Ethernet LANs.

SCF and SCP

SCF is an interactive interface that allows operators and system managers to

configure, control, and monitor the NonStop TCP/IP subsystem. SCF is part of DSM.

The Subsystem Control Point (SCP) provides an interface to the I/O processes of the

various subsystems.

SLSA

A subsystem of the NonStop operating system for configuration and management of

ServerNet LAN objects in G-series RVUs

SWAN Concentrator

A wide-area network data communications peripheral that provides connectivity to a

NonStop S-series server or Integrity NonStop NS-series server.

TRSA

A ServerNet adapter that provides a single line from a NonStop S-series server to a

token-ring network, allowing the server to act as a station on the ring. Speeds are

switchable between 4 megabytes (MB) and 16 MB, and the media can be either

shielded twisted pair (STP) or unshielded twisted pair (UTP).

X25AM

For WANs, a product that implements the services of the Network Layer and layers

below.

QIO

The QIO subsystem improves input/output (I/O) performance for NonStop TCP/IP by

providing more efficient sharing of processor memory.

For more information about QIO, see the QIO Configuration and Management Manual.

NonStop TCP/IP Interface to LAN, WAN, and

ATM networks

The NonStop TCP/IP process interfaces to the TRSAs, E4SAs, FESAs, GESAs, and

G4SAs through the SLSA subsystem. As shown in Figure 2-2, the SLSA subsystem

provides logical interfaces (LIFs) through which packets pass to filters. Packets pass