WAN Subsystem Configuration and Management Manual

WAN Subsystem Configuration and Management Manual—522463-011
2-1
2
Overview of the WAN Subsystem
This section describes the architecture and components of the WAN subsystem, the
SWAN and SWAN 2 concentrator, and the SWAN firmware.
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WAN Subsystem Features
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Architecture and Components of the WAN Subsystem on page 2-3
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Architecture and Components of the SWAN Concentrator (T3880) on page 2-7
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Architecture and Components of the SWAN 2 Concentrator (T3881) on page 2-18
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Difference Between the SWAN and the SWAN 2 Concentrator on page 2-30
WAN Subsystem Features
The WAN subsystem controls access to the ServerNet wide area network (SWAN and
SWAN 2) concentrator, which are communications controllers that connect to an
Integrity NonStop NS-series or NonStop S-series server through dual Ethernet ports.
The WAN subsystem is also used to configure and manage wide area network (WAN)
and local area network (LAN) connectivity through the SWAN concentrator for many
data communications subsystems.
Note. Throughout this manual when a distinction between a SWAN concentrator (T3880) and
a SWAN 2 concentrator (T3881) is not required, SWAN concentrator is used as a collective
term.
Table 2-1. Data Communications Subsystems Configured by the WAN
Subsystem (page 1 of 2)
Subsystem Description Object
AM3270 Enables application programs to configure 3270-
compatible devices connected to communications
lines on the SWAN concentrator.
Line-handler process
ATP6100 Enables application programs to configure asyn-
chronous terminals, printers, and other devices
connected to communications lines on the SWAN
concentrator.
Line-handler process
CP6100 Provides general-purpose protocol support that
enables application programs to pass data, initiate
protocol sequences, and control error recovery on
communications lines on the SWAN concentrator.
CP6100 is commonly used for custom device
support.
Line-handler process