TCP/IPv6 Migration Guide

Transport-Service Provider Differences for NonStop
TCP/IPv6
HP NonStop TCP/IPv6 Migration Guide—524524-004
2-2
Logical Network Partitioning (LNP)
To determine the name of a TCP6SAM process for use as a transport-service provider,
issue the following command:
This SCF LISTDEV command lists all the TCP/IP processes. A program name in the
SCF LISTDEV display of TCPIP means that the program is a NonStop TCP/IP
process; a program name of TCP6SAM means that the program is a NonStop
TCP/IPv6 process. The following display shows a sample result of the SCF LISTDEV
TCPIP command.
In this example, the processes $ZSAM3 and $ZSAM2 are TCP6SAM processes.
These are the processes you would select when specifying the transport-service
provider name for your applications to access NonStop TCP/IPv6. (It does not matter
which TCP6SAM process you select as the transport-service provider unless you are
using Logical Network Partitioning (LNP).)
If no TCP6SAM process appears and you want to use NonStop TCP/IPv6, see the
TCP/IPv6 Configuration and Management Manual for procedures for starting the
subsystem.
Logical Network Partitioning (LNP)
You can configure NonStop TCP/IPv6 to use LNP, a feature that allows you to partition
the system into separately addressed subnetworks. When you use this feature, be
careful when selecting the TCP6SAM process to use as the transport-service provider
for your application. When the subsystem is configured with LNP, applications are
restricted to the network interfaces associated with the TCP6SAM process chosen as
the application’s transport-service provider. The LNP configuration is similar to
conventional NonStop TCP/IP because the TCP6SAM process only provides access to
the network interfaces of its associated SUBNET objects.
To determine if you have LNP configured on your system, use the INFO MON *,
DETAIL command. This command tells you how many LNPs are configured, not
-> LISTDEV TCPIP
LDev Name PPID BPID Type RSize Pri Program
107 $ZTCP0 0,285 1,287 (48,0) 32000 200 \MYSYS.$SYSTEM.SYS03.TCPIP
141 $ZSAM3 3,269 (48,0) 57344 201 \MYSYS.$SYSTEM.SYS03.TCP6SAM
154 $ZTC0 0,299 1,286 (48,0) 32000 200 \MYSYS.$SYSTEM.SYS03.TCPIP
158 $ZTCP1 1,293 0,302 (48,0) 32000 200 \MYSYS.$SYSTEM.SYS03.TCPIP
190 $ZSAM2 1,310 (48,0) 57344 201 \MYSYS.$SYSTEM.SYS03.TCP6SAM