Chapter 3 Connection and Communication Parameters
53
Available values of the CommLinks parameter are case insensitive, and are
as follows:
♦
ALL Start all available communications links except IPX and
NamedPipes.
♦
IPX Start the IPX communications link. The IPX protocol is currently
supported for Windows and NetWare clients. In a future version, IPX of
this software, IPX support will be dropped. It is recommended that you
use SPX instead.
♦
NamedPipes (NP) For C2 security purposes, connect from a
Windows NT client to a database server on the same machine that was
started with the
–sc command-line option.
♦
NetBIOS Start the NetBIOS communications link. NetBIOS is
supported on Windows operating systems.
♦
NONE Start no communications links.
♦
SharedMemory (ShMem) Start the shared memory link for same-
machine communication.
♦
SPX Start the SPX communications link. The SPX protocol is
supported for Windows and NetWare clients.
♦
TCPIP (TCP) Start the TCP/IP communications link. TCP/IP is
supported on all operating systems.
Each of these values can have additional network communications
parameters supplied.
$ For a list of parameters, see "Network communications parameters" on
page 65.
You may wish to use a specific protocol, as opposed to ALL, for the
following reasons:
♦ The network library starts slightly faster if unnecessary network links
are not started.
♦ Connecting to the database may be faster.
♦ If you wish to tune the broadcast behavior of a particular protocol by
providing additional network communications parameters, you must
specify the link explicitly.
Additional network communications parameters may be provided for each
link, to tune the broadcast behavior of the link.
The CommLinks parameter corresponds to the database server
–x
command-line switch. The default behavior of the network server is
equivalent to
-x ALL.
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