B&B Electronics 856-19717--57 - Manual - Manual (Page 21)

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NOTE
Selective Advertising must be used when connecting to a device that Auto Negotiates and a
specific speed and duplex mode is desired.
Advertise FlowC and Force FlowCtrl - This is the FlowControl feature.
• When using FlowControl functionality on any port, enable Global FlowControl.
Then, configure each port individually.
• When using Auto Negotiation and FlowControl, set Advertise FlowC to Advertise
Flow and set Force FlowCtrl to Flow Auto.
• Set Advertise FlowC to No Flow to disable FlowControl on a given port.
• When using FlowControl and Force Mode on a given port, set Advertise FlowC
to Advertise Flow and set Force FlowCtrl to Frc FlowCt.
Unit FlowControl This enables/disables FlowControl functionality on the unit and
must be enabled for FlowControl to function on any port.
Operational Mode Configuration
As referenced in Product Applications, there are six modes of operation that can be
configured through the Serial/Telnet session. All of the modes of operation will block
management traffic on the Data port.
The configuration screen is accessed by typing config and pressing Enter from the
Additional Commands screen.
Mode One – Default and Default Plus
The default mode is designed to pass untagged traffic only. Press F4 to return to the
Additional Device-Specific Commands screen. In Default Mode Plus, all tagged and
untagged traffic passes between the data and optics ports. Management to the device
must be untagged.