Port Mirroring; The "Show" Commands; Show Monitor - Siemens SCALANCE XC-200 Configuration Manual

12.5

Port Mirroring

Note
It cannot be guaranteed when mirroring the data traffic that all packets are mirrored.
With the port mirroring function, you copy the data stream of one or more ports to another
interface to be able to analyze this data stream without disturbing operation.
Note
You need to disable port mirroring if you want to connect a normal end device to the monitor
port.
Note the data rate
If the maximum data rate of the mirrored port is higher than that of the monitor port, data may
be lost and the monitor port no longer reflects the data traffic at the mirrored port. Several ports
can be mirrored to one monitor port at the same time.
Several source ports from the same VLAN
If in a VLAN you select more than one source port for the port-based egress mirroring, unknown
unicast and multicast frames as well as broadcast frames are forwarded only once to the
destination port.
12.5.1

The "show" commands

This section describes commands with which you display various settings.
12.5.1.1

show monitor

Description
This command shows the status of the port mirroring function.
Requirement
You are in the User EXEC mode or in the Privileged EXEC mode.
The command prompt is as follows:
cli> or cli#
SCALANCE XB-200/XC-200/XF-200BA/XP-200/XR-300WG Command Line Interface
Configuration Manual, 07/2017, C79000-G8976-C361-06
Diagnostics
12.5 Port Mirroring
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