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194 AppendixA
MPE/V to MPE/iX Migration
Differences Between NS 3000/V and NS 3000/iX
Differences Between NS 3000/V and NS 3000/iX
There are a number of differences between the way NS is implemented
on MPE V systems and the way it is implemented on MPE/iX systems.
These differences affect the network itself, some of the applications that
users may run over the network, and the command used to obtain
status information about the network. Since it is helpful to understand
these differences as you prepare to move an existing MPE V network to
MPE/iX, they are summarized below.
Network
A number of the methods available for making connections to an
MPE V network are not available with NS 3000/iX. If your MPE V
network includes one of these you will need to modify your network
configuration before attempting to use the network on MPE/iX systems.
More information on the specific steps required to modify or remove
unsupported links or connections can be found later in this appendix.
The connection methods that are not supported on NS 3000/iX are:
• Manual dial modems.
• Asynchronous Network Link.
• Bisynchronous link-level protocol.
In addition, while it is possible to access a DS/3000 node directly from
an NS 3000/V node, this capability is not supported on NS 3000/iX. A
user of an NS 3000/iX network who wants to access a DS/3000 node
must first access an MPE V NS node. This is because the DS/3000 code
that was included as a subset of the NS 3000/V code is not provided
with NS 3000/iX.
Configuration Files
NS 3000/V network configuration files are separated into two files, the
NMCONFIG file, which contains link information, and the NSCONF file,
which contains the transport configuration and other subsystems you
have purchased such as SNA.
NS 3000/iX systems have a single NMCONFIG.PUB.SYS file that contains
information for the network transport, for NetIPC and link-level
logging, and also for the Datacommunications and Terminal Subsystem
(DTS). NMCONFIG.PUB.SYS also contains information for any other
subsystems you have purchased such as SNA.