Quick Reference Guide

28 PowerConnect B-Series TI24X Configuration Guide
53-1002269-02
Configuring basic port parameters
2
Auto-negotiation and advertisement of flow control
Auto-negotiation of flow control can be enabled and advertised for 10/100/1000M ports. To
enable and advertise flow control capability, enter the following commands.
PowerConnect(config)# interface ethernet 21
PowerConnect(config-if-e10000-21)# flow-control
To also enable auto-negotiation of flow control, enter the following commands.
PowerConnect(config)# interface ethernet 21
PowerConnect(config-if-e10000-21)# flow-control neg-on
Syntax: #[no] flow-control [neg-on]
• flow-control [default] - Enable flow control, advertise flow control and disable negotiation of
flow control
• flow-control neg-on - Advertise flow control and enable negotiation of flow control
• no flow-control - Disable flow control, disable advertising flow control and also disable
negotiation of flow control
Commands may be entered in IF (single port) or MIF (multiple ports at once) mode.
PowerConnect(config)# interface ethernet 21
PowerConnect(config-if-e10000-21)# flow-control
This command enables flow-control on port 21.
PowerConnect(config)# interface e 11 to 15
PowerConnect(config-mif-11-15)# flow-control
This command enables flow-control on ports 11 to 15.
Asynchronous flow control
The PowerConnect B-Series TI24X devices supports asynchronous flow control. By default, PAUSE
frames are honored when you stops or starts sending traffic to a switch when another switch sends
a PAUSE frame.
Flow control suports honor-only mode and generate-only mode. Honor-only is the default mode. To
change the default mode to generate-only mode use the flow-control generate-only command.
To set the mode to support both honor and generate modes use the flow-control both command. To
set the mode to default, use the flow-control honor-only command.
Displaying flow-control status
The show interface port command displays configuration, operation, and negotiation status where
applicable.
NOTE
For 10 Gbps ports, the display shows Flow Control is enabled, or Flow Control is disabled, depending
on the configuration.
NOTE
Auto-negotiation of flow control is not supported on 10 Gbps ports and copper/fiber combination
ports.