68 Port mirroring
Port mirroring
Feature overview The port mirroring feature supports multiple source ports mirroring traffic to a
single destination port.
Port mirroring selects the network traffic for analysis by a network analyzer. This
is done for specific ports on the switch. Many switch ports can be configured as
source ports, but only one is configured as a destination port for a monitoring
session.
You can configure how traffic is mirrored on a source port: You can mirror
packets that are received on the source port, packets that are transmitted on a port,
or both received and transmitted packets. Packets that are copied to the
destination port are in the same format as the original packets. That is, when the
mirror copies a received packet, the copied packet is VLAN tagged or untagged,
as it was received on the source port. When the mirror copies a transmitted
packet, the copied packet is VLAN tagged or untagged in the same manner as it
was transmitted on the source port.
Supported
parameters and
defaults
You can use the CLI to view and configure the following information:
Information on these parameters and other port mirroring commands can be
found in the Port Mirroring section of the CN1610 Network Switch CLI
Command Reference.
Name Description Range Default
Probe Port (destination
port)
Mirroring port that connects to
analyzer.
A valid physical port None
Source Port Mirrored port that copies traffic to
the destination port.
A list of valid
physical ports
None
Type Determines what traffic is mirrored. RX, TX, or Both Both
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