Siemens SCALANCE X-300 Configuration Manual page 140

Configuration using Web Based Management and Command Line Interface
4.5 The Switch menu
Access Control
Shows whether or not the port is locked for unknown MAC addresses. The following two
statuses are possible:
● enabled:
A frame with a source address that is not in the address table of the IE switch is
discarded. The IE switch does not enter the source address of the corresponding node in
the address table.
● disabled (default):
A frame with a source address that is not in the address table of the IE switch is
forwarded. The IE switch adds the source address of the corresponding node to the
address table.
Note
"Access Control" is available as of firmware version 2.2 and replaces the former "Lock"
function.
Down-Shift
Shows whether down shift is enabled or disabled.
Changing the port configuration
Click on the port name in the "Port" column to open the "Port Configuration" page. You can
specify how the data transfer is handled over this port.
Note
Optical ports only work with the full duplex mode and at maximum transmission rate. As a
result, the following settings cannot be made for optical ports:
• Autonegotiation
• Transmission rate
• Transmission mode
140
Configuration Manual, 10/2014, C79000-G8976-C187-22
SCALANCE X-300 / X-400