Hirschmann MACH 4000 Series, Руководство пользователя

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Traffic control
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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.