Traffic control
150
8.5
Flow control
Basic - L3P
Release
3.1
06/07
U Flow control with a full duplex link
In the example (see fig. 41) there is a full duplex link between Work-
station 2 and the Switch.
Before the send queue of Port 2 overflows, the Switch sends a request to
Workstation 2 to include a small break in the sending transmission.
U Flow control with a half duplex link
In the example (see fig. 41) there is a half duplex link between Work-
station 2 and the Switch.
Before the send queue of Port 2 overflows, the Switch sends data so
that workstation 2 detects a collision and thus interrupts the transmis
-
sion.
8.5.2 Setting flow control
V Select the Basics:Port Configuration. dialog.
In the “Flow Control” column, you mark this port to specify that flow
control is active. Activate for this also the global switch “Flow Control”
in the Switching:Global dialog.
V Select the Switching:Global dialog.
This dialog enables you to
– switch off flow control at all ports, or
– switch on flow control at all ports which have been selected for flow
control in the configuration table.
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