The baud directive is used to set the speed for serial communications. Any of the following speeds can be specified, provided they are supported by your operating system: 9600, 19200, 38400, 57600, 115200, 230400, 460800. The default speed is 19200. A sample baud directive is shown below:
baud 38400
This information provided courtesy of the Linux-HA project at http://linux-ha.org/