SMC Networks TigerSwitch 10/100 SMC6724L2, Management Manual

Page: 45 / 176

D
EVICE
C
ONTROL
M
ENU
2-31
Using a Mirror Port for Analysis
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. When mirroring port
traffic, note that the target port must be included in the same VLAN
as the source port. (See “Configuring Virtual LANs” on page 2-43.)
You can use the Port Mirror Configuration screen to mirror one or
more ports to the monitor port as shown below.
Note: You can mirror multiple ports to a single port to view traffic
such as that crossing a port trunk. However, note that some
packets may be dropped for moderate to heavy loading.
Layer 2 Menu: Mirror Port Configuration
============
Enable Port Mirror: ENABLED
Transmission Path
Mirrored Ports
Tx: 4
Rx: 5
Monitor Port Tx : 2
Monitor Port Rx : 3
<Apply> <OK> <Add>
Use <TAB> or arrow keys to move, <Space> to scroll options.
Parameter Description
Enable Port Mirror Enables or disables the mirror function.
Mirrored Ports (Tx/Rx) The port whose transmitted or received traffic will
be mirrored. Select <Add> to specify mirrored
ports.
Monitor Port The port that will duplicate the transmitted or
received traffic appearing on the mirrored port.