Description

The TCP_SEND_BUFFER option specifies the size of the TCP send buffer used for socket connections.

TCP_SEND_BUFFER provides the ability to tune TCP data transfer performance between a manager component and a server component started by the Universal Broker. See Network Data Transfer Tuning for a description on using this option to tune data transfer performance.

Universal Broker will instruct TCP to set the socket send buffer to the specified size. The actual TCP send buffer size used is determined by TCP based on its configuration. The TCP configuration can limit the buffer size to a maximum value for example.

Usage

Method	Syntax	IBM i	UNIX	Windows	z/OS
Command Line, Long Form	-tcp_send_buffer size [ unit ]
Environment Variable	UBRTCPSENDBUFFER=size [ unit ]
Configuration File Keyword	tcp_send_buffer size [ unit ]

Values

The size value specifies the requested size of the TCP send buffer.

The size value is specified in units of unit. Possible unit values are

Unit	Description
B	Bytes (the default)
K	Kilobytes (1024 bytes)
M	Megabytes (1048576 bytes)
G	Gigabytes (1073741824 bytes)

The unit value is case insensitive.

The maximum supported buffer size is 1G. The default is 0B.

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