SNAX/XF and SNAX/APN Configuration and Management Manual

Configuring for Ethernet Support
SNAX/XF and SNAX/APN Configuration and Management Manual—425836-006
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Configuring SNAX for Ethernet
cannot have an ASSOCIATESUBDEV value that has already been defined for another
PU known to that service manager. If your system has more than one service manager
process, the same ASSOCIATESUBDEV value could be used, but only on PUs
defined subordinate to different service managers.
Like token-ring, the Ethernet SCF PU attribute CALLVALIDATE supports the values
NONE and CALLADDR; it does not support the values CONNID or BOTH.
Configuring SNAX for Ethernet
Before starting Ethernet configuration, you should have performed Tasks 1 through 3 of
the Configuration Quick Start on page 1-1. In the SNAX Ethernet implementation, remote
PU objects that are added to lines represent the remote link-stations defined by the
Ethernet architecture. Additional information is supplied by the ADD PU and ALTER
PU commands to properly support the LLC2 protocols.
SAP information is supplied by information from the ADD PU and ALTER PU
commands. The ADD PU and ALTER PU commands specify the SAP value for both
local and remote PUs and the MAC address of the remote PU. (Multiple PUs can have
the same local SAP value.)
The local MAC component is not configured by SNAX. This value is supplied by the
Ethernet ServerNet adapter (E4SA, FESA, GESA, or G4SA).
Ethernet requires the definition of line subtype (6) in the SCF ADD DEVICE command.
For details, see SNAX Line Handler DEVICE Modifiers on page 2-7.
The Components of Ethernet Support
Ethernet support is provided using SCF or SPI commands to configure SNAX, in
particular to send configuration information to the service manager and line-handler
processes.
After the QIO and SNAX objects are configured and started, SNAX sends PIUs (the
actual data to be transmitted) to QIO and QIO sends the PIUs to the Ethernet adapters
(E4SA, FESA, GESA, or G4SA).
These relationships are shown in Figure 10-10
.
For information about QIO, see the QIO Configuration and Management Manual.
Figure 10-10. From SNAX to the Ethernet LAN
SNAX
Service Mangager
SNAX
Line Handler
Process
QIO
Ethernet
Adapter
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