TcpNumConnections
This parameter defines the maximum number of simultaneous TCP connections and should be set higher than the expected number of simultaneous connections.
Recommended value:
Note: Instead of using the registry editor, you can create a text file with the extension .reg using Notepad. The values have to be specified as hexadecimal values. These look like the following
REGEDIT4
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters]
"TcpTimedWaitDelay"=dword:0000001e
"MaxUserPort"=dword:00008000
"TcpNumConnections"=dword:000007d0
After you save the file, you can copy it to all servers and add the values to the registry by simply
Linux servers
Adjust the following TCP/IP parameters to tune performance in Linux:
tcp_fin_timeout
This parameter defines how many seconds to wait for a final FIN packet (state of FIN_WAIT_2) before the socket is forcibly closed.
Under Linux, the TCP timeout can be set in /proc/sys/net/ipv4/tcp_fin_timeout. This can be done by using the following command:
echo 30 > /proc/sys/net/ipv4/tcp_fin_timeout
A short description of this and other TCP parameters can be viewed in Linux by using the command man tcp. More detailed information is available in the Ipsysctl tutorial at
IBM AIX servers
Adjust the following TCP/IP parameters to tune performance in IBM AIX:
tcp_timewait
The tcp_timewait option is used to configure how long connections are kept in the timewait state. It is given in 15 second intervals, and the default value is 1.
Recommended value: 2 (30 seconds)
To see the current value, use this command:
no
To change the value, use this command:
no
A short description of this and other TCP parameters can be viewed in AIX by using the command man no.
108 IBM Lotus LMS Release 1 Installation Guide
