Operation Manual

38
Mirror Settings
Mirrorsnetworktrafcbyforwardingcopiesofincoming
andoutgoingpacketsfromspecicportstoamonitoring
port. The packet that is copied to the monitoring port will
be the same format as the original packet.
Port mirroring is useful for network monitoring and can
be used as a diagnostic tool. Use port mirroring to send
trafctoapplicationsthatanalyzetrafcforpurposes
such as monitoring compliance, detecting intrusions,
monitoringandpredictingtrafcpatterns,andother
correlatingevents.PortMirroringisneededfortrafc
analysis on a Switch because a Switch normally sends
packets only to the port to which the destination device
is connected. The analyzer captures and evaluates the
data without affecting the client on the original port.
PortmirroringcanconsumesignicantCPUresources
whileactive,sobeconciousofsuchusagewhencong-
uring the Switch.
.
Mirror ID:
A number identifying the mirror session. This
Switch only supports up to 4 mirror sessions.
Port:
Displays the session ID for port mirroring.
Destination
Port:
Selecttheportfortrafcpurposesfromsource
ports mirrored to this port.
Source TX/RX
Port:
Setsthesourceportfromwhichtrafcwillbe
mirrored.
TX Port: Only frames transmitted from this port are
mirrored to the destination port.
RX Port: Only frames received on this port are mir-
rored to the destination port.
Both: Frames received and transmitted on this port
aremirroredtothespecieddestinationport.
None: Disables mirroring for this port.
Ingress State Select whether to Enable or Disable ingress
trafcforwarding.
Session State: Select whether to Enable or Disable port mir-
roring.