IEEE 802.3x flow control works by pausing a port if the port becomes oversubscribed (that is, the port receives more traffic than it can process) and dropping all traffic for small bursts of time until the port is no longer congested.
You can enable or disable flow control for an individual port. By default, flow control is disabled for all ports.
To manage flow control for a port:
- Open a web browser from a computer that is connected to the same network as the switch or is connected to the switch directly through an Ethernet cable.
- Enter the IP address that is assigned to the switch.
The login page opens. - Enter the switch password.
The home page displays. - The PORT STATUS pane displays on the right or the bottom of the home page, depending on the size of your browser page.
A port that is in use shows as UP. A port that is not in use shows as AVAILABLE. - Select a port.
The pane displays detailed information about the port. - Click EDIT.
- In the Flow Control section, enable or disable flow control by clicking the slider.
- When flow control is enabled, the slider background displays blue. When flow control is disabled, the background displays white.
- Click APPLY.
Your settings are saved.
Last Updated:07/07/2025
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Article ID: 000037831