LAN Configuration and Management Manual

Introduction to the SLSA Subsystem
LAN Configuration and Management Manual—520469-012
2-15
SLSA Subsystem SCF Objects
ATMSAP and Expand
The Expand product connects NonStop NS-series or NonStop S-series systems in
networks of up to 256 nodes.
The SLSA ATMSAP offers an ATM Native Mode network interconnect support similar
to that offered by the PVC object within an ATM subsystem. Expand issues native
mode frames directly to the ATM product via a LIF associated with an ATMSAP object.
Figure 2-7 illustrates ATMSAP use by Expand.
Logical Interface (LIF)
The LIF is a naming point and a logical abstraction of the interface. LAN service
providers (see page 2-9) connect to SLSA at the LIF. Clients of the SLSA subsystem
refer to a LIF by an object name of the form $ZZLAN.lif-name, for example,
$ZZLAN.L018. (See HP Manufacturing Naming Conventions (G06.26 and Earlier
RVUs) on page 3-2 for information about preconfigured naming conventions and
suggestions for naming your LIFs.)
Each LIF connects to one PIF.
Physical Interface (PIF)
The PIF represents the physical connection to the LAN. PIF names have the form
$ZZLAN.adapter-name.sac-unit#.pif-unit-letter, for example: $ZZLAN.G4SA1.0.A. (See
HP Manufacturing Naming Conventions (G06.26 and Earlier RVUs)
on page 3-2 for
information about preconfigured naming conventions and suggestions for naming your
PIFs.)
ServerNet Addressable Controller (SAC)
A SAC is the ServerNet addressable entity on an adapter and can support one or more
PIFs. SAC names have the form $ZZLAN.adaptername.sac-unit#, for example:
$ZZLAN.E4SA0.0. (See HP Manufacturing Naming Conventions (G06.26 and Earlier
RVUs) on page 3-2 for information about preconfigured naming conventions and
suggestions for naming your SACs.)
Figure 2-7. Expand and ATMSAP
CPU
Expand LH Process
Line
LIF
ATM3SA
ATMSAP
ATM3SA
ATMSAP
CPU
Expand LH Process
LIF Line
VST016.vsd