KB.15.15

Software Version K.14.XX Operation.

For software versions K.14.XX, the USB port can be disabled and enabled without affecting the

autorun feature. When the USB port is enabled, the autorun feature activates if a USB device is

already inserted in the USB port. Power is synchronized with the enabling and disabling of USB

ports as described above for K.13.59 and later software.

Enabling or disabling flow control

NOTE: You must enable flow control on both ports in a given link. Otherwise, flow control does

not operate on the link and appears as Off in the show interfaces brief port listing, even

if flow control is configured as enabled on the port in the switch. (See Example 43 (page 75).)

Also, the port (speed-duplex) mode must be set to Auto (the default.)

To disable flow control on some ports, while leaving it enabled on other ports, just disable it on

the individual ports you want to exclude. (You can find more information on flow control in Table 3

(page 101).)

Syntax

[no] interface <port-list> flow-control

Enables or disables flow control packets on the port. The no form of the command disables flow

control on the individual ports.

Default: Disabled.

Examples

Suppose that:

1. You want to enable flow control on ports A1-A6.

2. Later, you decide to disable flow control on ports A5 and A6.

3. As a final step, you want to disable flow control on all ports.

Assuming that flow control is currently disabled on the switch, you would use these commands:

Enabling or disabling flow control 89