Introduction to Networking for NonStop S-Series Servers

Device-Specific Connections
Introduction to Networking for HP NonStop S-Series Servers—520670-005
6-10
Host Node Emulation
Host Node Emulation
Advanced peer-to-peer networking (APPN) is an extension of SNA that enables a
variety of SNA systems to communicate as peers, without the control of a host. The
peer systems must all have the requisite software to function as type 2.1 nodes. There
are three types of type 2.1 nodes, with increasing capabilities:
•
Low-entry networking (LEN) node
•
End node
•
Network node
The base SNAX/APN product enables a NonStop S-series server to participate in this
environment as a LEN node; the extended version, SNAX/APN-EN, enables a
NonStop S-series server to act as an end node. Section 7, HP NonStop S-Series
Systems Network Architecture (SNA) Network Connections, describes SNAX/APN in
detail.
SNAX Token-Ring Connections
You can connect a NonStop S-series server to a token-ring LAN using SNAX/XF or
SNAX/APN. SNAX/XF supports token-ring connections; SNAX/APN supports non-
switched token-ring connections. The Port Access Method (PAM) subsystem and a
Token-Ring ServerNet adapter (TRSA) are required for token-ring connections.
SNAX Ethernet Connections
The QIO and SLSA subsystems and either an Ethernet 4 ServerNet adapter (E4SA) or
a Fast Ethernet ServerNet adapter (FESA) are required for SNAX/XF and SNAX/APN
Ethernet connections. Pure SNA over TCP/IP is not supported.