beautypg.com

Flow control – Allied Telesis AT-2812FX User Manual

Page 63

background image

AT-2812FX ExpressCard Fast Ethernet Fiber (SC) Module Installation and User’s Guide

63

Flow Control

The Flow Control property allows you to enable or disable the receipt or
transmission of PAUSE frames which enable the adapter and the switch to
control the transmit rate. The port side that receives the PAUSE frame
momentarily stops transmitting. The recommended selection is Disable,
which configures the adapter to ignore PAUSE frames. By default, the
Flow Control property is disabled.

To change the Flow Control property, do the following:

1. Access the Device Manger for your operating system.

To access the Windows XP Device Manager, see “Selecting the
Device Manager Window” on page 47
.

To access the Windows Vista Device Manager, see “Selecting the
Device Manager” on page 39.

To access the Windows 7 Device Manager, see “Selecting the
Device Manager Window” on page 54
.

2. Click the Advanced tab.

The Advanced tab is shown in Figure 31 on page 64.

3. From the Property list on the Advanced tab, select Flow Control.

4. From the Value list on the Advanced tab, select one of the following:

Auto - (default) PAUSE frame receipt and transmission is
optimized.

Disable - PAUSE frame receipt and transmission is disabled
(recommended).

Rx PAUSE - PAUSE frame receipt is enabled.

Rx/Tx PAUSE - PAUSE frame receipt and transmission is
enabled.

Tx PAUSE - PAUSE frame transmission is enabled.

5. Click OK.

6. If prompted to restart your computer, click Yes.

Although it is not necessary to reboot the system for new adapter
properties to take effect, rebooting is recommended to reinitialize all
registers.

7. Verify that the port LED operates as described in “Physical

Description” on page 20.