HP 3000 Manuals HP 3000 Manuals
Differences Between NS3000/V and NS3000/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.
Differences in the Network
A number of the methods available for making connections to an MPE V
network are not available with NS3000/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 NS3000/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 NS3000/V node, this capability is not supported on NS3000/iX. A user
of an NS3000/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 NS3000/V code is not provided with NS3000/iX.
Differences in Configuration Files
NS3000/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.
NS3000/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.
Differences in Applications Support
There are also differences in the implementations of NS3000/V and
NS3000/iX that will affect certain applications that users may currently
be running on your MPE V network. These differences are as follows:
* NS3000/iX supports PTOP for HPDESK only.
On NS3000/iX PTOP is not supported for applications other than
HPDESK. Network users who are running PTOP programs will need to
convert them to NetIPC/RPM programs before running them on an
NS3000/iX network. Refer to the NetIPC 3000/XL Programmer's
Reference Manual and the Using NS3000/iX Network Services for more
information.
* Nowait I/O RFA is not available with NS3000/iX.
Privileged mode programs that use nowait I/O Remote File Access
over an MPE V network will need to be modified before they can be
run on an NS3000/iX network. Refer to the Using NS3000/iX Network
Services for more information.
Difference in How to Obtain Status Information
On MPE V systems the SHOWCOM command returns status information about a
communication device, and is used to determine line activity and quality.
This information is still available on NS3000/iX, but is accessed through
a different command. Use the LINKCONTROL STATUS command to access status
information on NS3000/iX.