Introduction to Networking for NonStop S-Series Servers

HP NonStop S-Series Systems Network Architecture
(SNA) Network Connections
Introduction to Networking for HP NonStop S-Series Servers—520670-005
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SNAX/XF
SNAX/XF
SNAX/XF allows SNA devices attached to the NonStop S-series server through
switched lines, leased lines, token-ring or Ethernet LANs, or X.25 network connections
to use HP applications. When used with the Pathway/TS product or certain other HP
applications, the NonStop S-series server provides SNA presentation and session
services for attached 3270 devices. You can also write your own applications to
provide these services.
SNAX/XF includes a passthrough option, which lets terminals connected to a NonStop
S-series server through node type 2 devices (cluster controllers) use HP applications
without losing their access to applications in the SNA network. The passthrough
feature lets node type 2 devices communicate transparently with SNA host
applications; it also permits transparent downloading of microcode or other files from
the IBM host. A user switches between the HP and IBM applications simply by logging
off one application and onto the other.
Figure 7-3 illustrates the SNAX/XF passthrough feature. With SNAX/XF, a NonStop
S-series server is connected to the SNA host through an SNA communications
controller. The NonStop S-series server appears as an SNA host (node type 5) to SNA
devices and as a cluster controller (node type 2) to SNA hosts. EM3270 software is
required to provide SNA 3270 device emulation. The ATP6100 terminal access method
is also required and either a SWAN concentrator or an AWAN must be used.