HP NonStop NS manual LAN Service Provider Subsystems Supported, Object Connectivity By

Communications Subsystems: Monitoring and	Local Area Networks (LANs) and Wide Area
Recovery	Networks (WANs)

•Physical interfaces (PIFs)

Processes that use the SLSA subsystem to send and receive data on a LAN attached to an Integrity NonStop server are called LAN service providers. Two service providers—the NonStop TCP/IP and NonStop TCP/IPv6 subsystems and the Port Access Method (PAM)—are currently supported. They provide access for these subsystems:

LAN Service Provider	Subsystems Supported
NonStop TCP/IP subsystem,	The Expand subsystem, which provides Expand-over-
NonStop TCP/IPv6 subsystem	IP connections.
Port Access Method (PAM)	Ethernet and token-ring LANs. The OSI/AS, OSI/TS,
	SNAX/XF, and SNAX/APN subsystems communicate
	with SLSA through the PAM subsystem.

Processes, user applications, and subsystems that use the SLSA subsystem and related LAN providers to connect to an FCSA or G4SA attached to an Integrity NonStop NS-series server are called LAN clients. For example, the WAN subsystem is a client of the SLSA subsystem because the SLSA subsystem provides the WAN subsystem access to the ServerNet wide area network (SWAN) concentrator through the LAN.

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:

Object	Connectivity By
AM3270	Line-handler processes
Asynchronous Terminal Process	Line-handler processes
6100 (ATP6100)
Communications Process	Line-handler processes
subsystem (CP6100)
EnvoyACP/XF	Line-handler processes
Envoy subsystem	Line-handler processes
Expand	Subsystem network control process and line-handler
	processes
ServerNet cluster (Expand-over-	Line-handler processes
ServerNet)
SNAX/APN	Subsystem service manager process and line-handler
	processes
SNAX/XF	Subsystem service manager process and line-handler
	processes
TR3271	Line-handler processes
X25AM	Line-handler processes

You can define these communications subsystem objects as WAN subsystem devices.

HP Integrity NonStop NS-Series Operations Guide—529869-005

6-3