WAN Subsystem Configuration and Management Manual

Overview of the WAN Subsystem
WAN Subsystem Configuration and Management Manual—522463-011
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SLSA
If you have configured a SWAN concentrator by using conventional TCP/IP, you will
notice some changes in the SCF commands to support the Parallel Library TCP/IP or
NonStop TCP/IPv6 configuration.
For information about configuring conventional TCP/IP, see the TCP/IP Configuration
and Management Manual. For information about configuring Parallel Library TCP/IP,
see the TCP/IP (Parallel Library) Configuration and Management Manual. For
information about configuring NonStop TCP/IPv6, see the TCP/IPv6 Configuration and
Management Manual.
SLSA
The ServerNet LAN Systems Access (SLSA) subsystem provides access to parallel
LAN and WAN I/O for Integrity NonStop NS-series or NonStop S-series servers. The
SLSA subsystem provides access to LAN, Token-Ring, CCSA, multifunction I/O-board
adapters, and the ServerNet wide area network (SWAN) concentrator. For more
information, see the LAN Configuration and Management Manual.
Architecture and Components of the SWAN
Concentrator (T3880)
The SWAN concentrator is a communications device that allows access to WAN
connections from Integrity NonStop NS-series or NonStop S-series servers. The
SWAN concentrator connects bit-synchronous, byte-synchronous, and asynchronous
devices to NonStop S-series servers. This feature enables customers migrating from
NonStop K-series servers to Integrity NonStop NS-series or NonStop S-series servers
to preserve their investment in legacy devices.
The SWAN concentrator contains three communications line interface processors
(CLIPs), and each CLIP supports two serial ports. The resulting six lines can support
any combination of the following interfaces:
•
RS-232
•
RS-449
•
V.35
•
X.21
Each SWAN line can support asynchronous, byte-synchronous, or bit-synchronous
transmissions independent of the other lines. This feature enables a single SWAN
concentrator to perform the functions of multiple controllers.
Note. For information about the SWAN 2 concentrator, see Architecture and Components of
the SWAN 2 Concentrator (T3881) on page 2-18.
Note. The configuration rules allow any I/O protocol to share a CLIP with any other I/O
protocol. All combinations are fully supported.