Flow-Control - 3Com 3C13618 Command Reference Manual

3.1.9 flow-control

Syntax
flow-control { none | software | hardware } [ inbound | outbound ]
View
Asynchronous serial interface view
Parameter
none: Disable flow control function of asynchronous serial port.
software: Enable software flow control function of asynchronous serial port.
hardware: Enable hardware flow control function of asynchronous serial port.
inbound: Inbound flow control function, which means the interface accepts control
flow information from remote equipments.
outbound: Outbound flow control function, which means the interface sends control
flow information to remote equipments.
Description
Using the flow-control command, you can configure the method of data flow control
on an asynchronous serial interface.
By default, the function of hardware flow control is enabled in the inbound direction,
and the function of flow control is disabled in the outbound direction.
There are two types of data flow control methods, hardware flow control and software
flow control, when an asynchronous serial interface adopts the flow mode to establish
links. If hardware flow control is adopted, the data transmission on the asynchronous
serial interface will be controlled by the hardware signal on the interface. When
transmitting data, the interface will automatically detect the CTS signal. If there are
CTS signals, it will transmit data. If no signals are detected, it will terminate the data
transmission. If software flow control is adopted, the data transmission on the
asynchronous serial interface will be controlled by the software flow control
characters. When transmitting data, the interface will transmit data if receiving the
flow control characters XON (0x11). It will terminate the transmitting, if receiving the
flow control characters XOFF (0x13).
Flow control on the asynchronous port can be implemented in two directions:
inbound and outbound. The inbound direction refers to the direction in which the
data flow into the router. It means that the attached device implements the flow
Interface Management
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