HP 6120G/XG ProCurve Series 6120 Blade Switches Management and Configuration G - Page 263

Note Port Status and Configuration Viewing Port Status and Configuring Port Parameters Enabling or Disabling Flow Control Flow control is enabled by default on the downlink ports. You must enable flow control on the uplink 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. (Refer to Figure 10-3 on page 10-9.) 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. 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.) For example, 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: Enables per-port flow control for ports A1 - A6. Figure 10-10. Example of Configuring Flow Control for a Series of Ports 10-17