• Monitor port speed should match or exceed sourc e port spe ed, otherwis e traffic
may be dropped from the monitor port.
• All mirror sessions have to share the same destination port.
• When mirroring port traffic, the target por t mu st be included in t he same VLA N as
the source port when using MSTP (see “Spanning Tree Algori thm ” on page 10-1).
Command Attributes
• Mirror Sessions – Displays a list of current mirror sessio ns.
• Source Unit – The unit whose port traffic will be mon itored. (Range : 1-8)
• Source Port – The port whose traffic will be m onitore d. (Ran ge: 1-26 /50)
• Type – Allows you to select which traffic to mirror to the target port, Rx (receive),
Tx (transmit), or Both. (Default: Rx)
• Target Unit – The unit whose port will "duplicate" or "mirro r" the tra ffic on th e
source port. (Range: 1-8)
• Target Port – The port that will “mirror” the traffic from the sour ce port.
(Range: 1-26/50)
Web
– Click Port, Mirror Port Configuration. Specify the source port, the traffic type
to be mirrored, and the monitor port, then click Add.
Figure 8-10 Mirror Port Configuration

8-19

8

Configuring Port Mirroring

Configuring Port Mirroring
You can mirror traffic from any source port to a
target port for real-time analysis. You can then
attach a logic analyzer or RMON probe to the
target port and study the traffic crossing the
source port in a completely unobtrusive manner.
Command Usage
Source Single
port(s) target
port