ATM Configuration and Management Manual
ATM Configuration and Management Manual—522307-003
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Configuring the ATM Subsystem
This section describes the configuration of the ATM subsystem on a NonStop S-series 
server. It also describes the prerequisites to getting started and provides a 
configuration quick start that takes you through each step of the configuration.
For information on configuring TCP/IP over the ATM subsystem, see the 
TCP/IPv6 
Configuration and Management Manual
.
Before You Configure
Before you can configure and start the ATM subsystem, you previously must have 
configured and started a NonStop S-series server and several underlying processes 
and subsystems. 
Before you attempt to start a line between the NonStop S-series server and the 
external environment, you must install and configure a third-party ATM switch, 
connecting it on one side to the ATM adapter and on the other side to an external 
network. 
Configuring the NonStop S-Series Server
Before you configure the ATM subsystem:
1. Check that the NonStop S-series server is configured and started by the system 
generation (SYSGENR) program.
For more information on planning and configuring the NonStop S-series server, see 
the 
NonStop S-Series Planning and Configuration Guide
.
2. Check that the $ZPM persistence manager process is started.
$ZPM starts and maintains persistence of SCF subsystem managers; starts, stops, 
and (optionally) restarts generic processes; and coordinates system load and 
processor reload activities.
3. Check that the $ZZLAN subsystem manager process is started.
$ZZLAN configures local area network (LAN) connections and facilities.
4. Check that the $ZZSTO subsystem manager process is started.
$ZZSTO configures all storage devices such as disk and tape.
5. Check that the $ZZKRN subsystem manager process is started. 
$ZZKRN configures the X and Y fabrics, all system attributes, and generic 
processes. For more information, see the 
SCF Reference Manual for the Kernel 
Subsystem
.










