Gigabit Ethernet Switch User's Manual

WGS3 Layer 3 Switch User’s Manual
- 157 -
5.7.1.2 Using Port Mirror for Analysis
You can mirror traffic from any source port to a target port for real-time analysis. You can then attach a
packet 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 “5.7.3.2 VLAN Table Configuration”)
5.7.1.2.1 Using Port Mirroring on WGS3-2620
On WGS3-2602, you can use the Mirror Configuration screen to mirror one or more ports to the monitor
port as shown below.
Parameter Description
Enable Port Mirror Enables or disables the mirror function.
TX Mirrored Port The port whose transmitted traffic will be mirrored.
TX Monitored Port The port that will duplicate the transmitted traffic appearing on the mirrored port.
RX Mirrored Port The port whose received traffic will be mirrored.
RX Monitored Port The port that will duplicate the received traffic appearing on the mirrored port
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.