Cisco Small Business 200 Series

Administration: Diagnostics
Configuring Port and VLAN Mirroring
Cisco Small Business 200 Series Smart Switch Administration Guide 81
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Only one instance of mirroring is supported system-wide. The analyzer port (or target port for VLAN
mirroring or port mirroring) is the same for all the mirrored VLANs or ports.
To enable mirroring:
STEP 1 Click Administration > Diagnostics > Port and VLAN Mirroring.
The following fields are displayed:
• Destination Port—Port to which traffic is to be copied; the analyzer port.
• Source Interface—Interface, port, or VLAN from which traffic is sent to the analyzer port.
• Type—Type of monitoring: incoming to the port (Rx), outgoing from the port (Tx), or both.
• Status— Displays one of the following values:
- Active—Both source and destination interfaces are up and forwarding traffic.
- Not Ready—Either source or destination (or both) are down or not forwarding traffic for some
reason.
STEP 2 Click Add to add a port or VLAN to be mirrored.
STEP 3 Enter the parameters:
• Destination Port—Select the analyzer port to where packets are copied. A network analyzer, such as
a PC running Wireshark, is connected to this port. If a port is identified as an analyzer destination port,
it remains the analyzer destination port until all entries are removed.
• Source Interface—Select the source port or source VLAN from where traffic is to be mirrored.
• Type—Select whether incoming, outgoing, or both types of traffic are mirrored to the analyzer port. If
Port is selected, the options are:
- Rx Only—Port mirroring on incoming packets.
- Tx Only—Port mirroring on outgoing packets.
- Tx and Rx—Port mirroring on both incoming and outgoing packets.
STEP 4 Click Apply. Port mirroring is added to the Running Configuration.