Network management for industrial networks
2.2 Functionality and properties of a SCALANCE X-300/X-400
SCALANCE X-300 / X-400
Configuration Manual, 10/2014, C79000-G8976-C187-22
15
Note
In the firmware versions prior to 2.2.0, this property is called "Locked Ports".
If this function is activated for a port, an IE switch only forwards frames received at this port if
their source address exists in the address table.
It is possible to have all connected nodes entered in the access control list automatically.
ng ports cannot be configured with access control
enabled
.
Network access protection complying with the standard IEEE 802.1x
Ports can be configured for end devices that support authentication according to IEEE
802.1x. The authentication is made via a RADIUS server that must be reachable over the
network.
Mirroring allows the data traffic of a port to be mirrored at another port. The data traffic can
then be analyzed at this monitor port without any effects on operation.
An IE switch can be configured so that it sends an E-mail when certain events occur.
The event log table logs events that occur during operation with an IE switch. The user can
specify which events cause an entry in the table.
Time-of-day synchronization
IE switches allow the system time to be synchronized with external time transmitters. To use
this functionality, there must, for example, be a SICLOCK time transmitter or an SNTP server
whose frames the IE switch evaluates. Entries in the event log table then have a time stamp
that is uniform throughout the system. This allows events to be sorted according to the time
of their occurrence throughout the system speeding up the identification of the causes of
problems.
IE switches support flow control in half and full duplex mode.
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