Siemens Unix V4.0 - Manual (Page 119)

Configuring Advanced Server for UNIX Configuring NetBIOS
Product Manual U7613-J-Z815-6-76
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5.1.5 Configuring NetBIOS Startup Parameters
Since AS/X V4.0B, the startup options for nbrfcdaemon are presently configured in the
/var/opt/nbrfc/conf/nbrfcdaemon.cfg file. Default is “-l2 -f20 -n”. If the file does not exist, it will
be created automatically. Changes to this file are not overwritten during an upgrade instal-
lation.
The following startup parameters of the NetBIOS daemon can be configured by the admin-
istrator:
-n This option instructs TCP not to wait for ACK of the previous small packet, rather to
send the next small packet immediately. The Nagle algorithm is thus disabled. This
avoids the delay of waiting for the ACK at the expense of less efficient utilization of
the physical medium.
In earlier AS/X versions, this functionality was configured in the “tcp_nodelay”
parameter in the lanman.ini file. This parameter is no longer supported.
Reliant UNIX-N V5.43C0 still does not support this parameter. You will therefore
have to use a single correctional release in this case. For further details, refer to the
information supplied in the release notice in the SIreadmeM package.
-l
Specifies the maximum number of simultaneously outstanding connect indications.
The period of time that normally elapses between the setup being requested and
the actual connection being set up is usually quite small, with the result that an
additional setup request is generally possible. If the maximum number is reached
and the setup requests are tied up for too long, faulty network configurations are
often the reason. Please contact your Support Center in this case.
Default: 2, Maximum: 5
-f
Specifies the number of NetBIOS sessions that the NetBIOS daemon always keeps
on hold in order to speed up the connection setup. A bottleneck with these prelim-
inary sessions is logged in syslog and also displayed with the
nbrfcdiag -f command.
The parameter can be increased in this case although this ties up additional
resources. Your Support Center will be able to tell you the optimal setting. Default:
20
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