Supervising the Network

7-16
Maintaining the NetWare Server
About NetWare Networking Protocols
When setting up NetWare, you will need to turn SAP on and enter the
number of services you will be advertising to use this feature. See
“Managing NetWare Protocols” in this chapter for more information.
NetWare Core Protocol (NCP)
The NCP makes interaction between clients and file servers possible by
defining connection control and service request reply/encoding.
The NCP provides its own session control and packet-level error checking
instead of relying on other protocols for these functions. Consequently, the
modularity of the protocol stack is reduced, but runs more efficiently.
Each NCP request packet submitted on a given connection must be assigned
a sequence number by the client. The first request is assigned the number 1;
that number is incremented by 1 for each subsequent request. When a file
server finishes processing a request, it places the sequence number for that
request in the response packet. The client can then make sure it is receiving
the correct responses for the requests submitted.
For more information on IPX, SPXII, RIP, SAP, or NCP, see the Utilities
Reference.
IPX Auto-Discovery
If a NIC was already installed in your system when you installed HP-UX,
the auto-discovery feature automatically detected the IPX network number,
frame type, and network device name for the network(s) connected to your
node. This option is activated at installation so IPX configuration is
automatic unless you install additional network boards later or need to
change your IPX configuration.
Each time you boot HP-UX or shut down to move your system to another
physical location, IPX reconfiguration is unnecessary because auto-
discovery takes care of that for you.
If you did not have a network board installed when you installed NetWare®
4.1/9000, or if you want to add more network boards, only then is it
necessary to reconfigure IPX using SAM.
Occasionally, NetWare® 4.1/9000 may detect a frame type other than the
one you need because it checks for frame types in a specific order.