Tuning Tcp Parameters - Netscape DIRECTORY SERVER 7.0 Installation Manual

Operating System Requirements
CAUTION This parameter should not be raised above
You should also set the soft limit for file descriptors:
ulimit -n
in csh limit desc 1024
Use the
hard and soft limits for file descriptors.

Tuning TCP Parameters

By default, the TCP/IP implementation in a Solaris kernel is not correctly tuned
for Internet or Intranet services. The following
should be inspected and, if necessary, changed to fit the network topology of the
installation environment.
The
tcp_time_wait_interval
that a TCP connection will be held in the kernel's table after it has been closed. If
its value is above
MAN, or under a single network administration, it should be reduced by adding
a line to the
ndd -set /dev/tcp tcp_time_wait_interval 30000
The
tcp_conn_req_max_q0
maximum backlog of connections that the kernel will accept on behalf of the
Directory Server process. If the directory is expected to be used by a large number
of client hosts simultaneously, these values should be raised to at least
adding a line to the
ndd -set /dev/tcp tcp_conn_req_max_q0 1024
ndd -set /dev/tcp tcp_conn_req_max_q 1024
The
tcp_keepalive_interval
keepalive packets sent by Solaris for each open TCP connection. This can be used
to remove connections to clients that have become disconnected from the
network.
The
tcp_rexmit_interval_initial
performing server performance testing on a LAN or high speed MAN or WAN.
For operations on the wide area Internet, its value need not be changed.
40 Netscape Directory Server Installation Guide • October 2004
consulting your Sun Solaris support representative since it may
affect the stability of the system.
utility (see "dsktune Utility," on page 28) to check about the
dsktune
(30 seconds) and the directory is being used in a LAN,
30000
/etc/init.d/inetinit
and
/etc/init.d/inetinit
/dev/tcp
in Solaris 9 specifies the number of milliseconds
file similar to the following:
tcp_conn_req_max_q
file similar to the following:
specifies the interval in seconds between
value should be inspected when
without first
4096
tuning parameters
parameters control the
1024
by