NonStop Operations Guide for H-Series and J-Series RVUs

The WAN subsystem is used to control access to the SWAN concentrator. Depending on your
configuration, it can be used to configure and manage both WAN and LAN connectivity for these
communication subsystem objects:
Connectivity ByObject
Line-handler processesAM3270
Line-handler processesAsynchronous Terminal Process 6100 (ATP6100)
Line-handler processesCommunications Process subsystem (CP6100)
Line-handler processesEnvoyACP/XF
Line-handler processesEnvoy subsystem
Subsystem network control process and line-handler
processes
Expand
Line-handler processesServerNet cluster (Expand-over-ServerNet)
Subsystem service manager process and line-handler
processes
SNAX/APN
Subsystem service manager process and line-handler
processes
SNAX/XF
Line-handler processesTR3271
Line-handler processesX25AM
You can define these communications subsystem objects as WAN subsystem devices.
CLuster I/O Modules (CLIMs)
CLIMs provide communications interfaces for networking and storage for NonStop BladeSystems
and some NonStop NS-series systems. For the list of CLIMs supported, see the planning guide for
your NonStop system.
The CIP subsystem provides the hardware and a configuration and management interface for I/O
on NonStop server blades. In the CIP subsystem, networking functionality is distributed between
the CLIM and the NonStop server blade.
CIP requires a NonStop BladeSystem or a NonStop NS-series system that supports CLIMs, and it
requires the J06.04 or later J-series RVU or the H06.16 or later H-series RVU on some NonStop
servers.
The NonStop host system component of the CIP subsystem includes an application programmatic
interface (API), transport service providers, and a Subsystem Control Facility (SCF) interface for
monitoring the subsystem and configuring storage and networking environments. The Open System
Services (OSS) and Guardian socket library API provides access to the CIP subsystem for
applications running on the NonStop server blade. CIP provides a socket access method (SAM)
process on the NonStop BladeSystem for applications to use as a transport service provider.
The CLIM component of the CIP subsystem provides the physical interface to the network and
performs the IP protocol processing. The CLIM includes one ServerNet Packetizer PCIe card that
interfaces to the ServerNet fabric of the NonStop BladeSystem. The CLIM connects from its
management processor interface (eth0) and its Integrated Lights-Out (iLO) interface to a maintenance
switch.
The Subsystem Control Facility (SCF), the climconfig tool, and iLO provide monitoring and
management of the CIP subsystem. See Chapter 10 (page 112) and the Cluster I/O Protocols (CIP)
Configuration and Management Manual for more information. To use iLO for operator tasks, such
as booting the CLIM, creating users, and managing access, refer to the HP Integrity and HP 9000
Integrated Lights-Out Management Processor Guide.
Communications Subsystems 87