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Port Mirroring
Port Mirroring
Port Mirroring is used to monitor the network traffic that one or more ports send and receive. The Port
Mirroring feature creates a copy of the traffic that the source interface handles and sends it to a desti-
nation port. All traffic from the source port or ports can be mirrored and sent to the destination port.
When the destination is a port on the local device, a network protocol analyzer is typically connected to
the port. Multiple switch ports can be configured as source ports, with each port mirrored to the same
destination.
Port Mirroring Configuration
To display the Port Mirroring page, click
Switching
>
Port Mirroring
in the navigation pane.
Figure 19. Port Mirroring Page
CAUTION:
When configuring port mirroring, avoid oversubscribing the destination port to prevent the loss of mir-
rored data.
While a port is used as the destination port for mirrored data, the port cannot be used for any other
purpose; the port will not receive and forward traffic.
