Reference Guide

Port Monitoring | 1153
Usage
Information
You can configure any port as a destination port. You cannot configure a VLAN, port-channel, or
SONET interface as a destination port
You can configure additional destination ports in an active session.
You can tunnel the mirrored traffic from multiple remote-port source sessions to the same destination
port.
You can configure a destination port to send only tagged or untagged traffic to the analyzer. By default,
the port sends untagged packets so that the reserved VLAN ID is removed and the original monitored
packet is analyzed.
By default, ingress traffic on a destination port is dropped.
A destination port for remote port mirroring cannot be used as a source port, including the session in
which the port functions as the destination port.
A destination port cannot be used in any spanning tree instance.
The dedicated L2 VLAN used for remote port mirroring is configured with the mode
remote-port-mirroring command.
To delete one or more destination ports from a destination session, enter the no source remote vlan
(remote port mirroring) command.
To change the reserved VLAN used in the destination session, you must first remove all destination
ports. Then delete the current VLAN by entering the no monitor session source remote vlan (remote
port mirroring) command and re-enter the monitor session source remote vlan (remote port mirroring)
command to configure the new VLAN ID.
tagged destination
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Configure destination ports for remote port mirroring so that the reserved VLAN tag is added to
mirrored traffic sent to an analyzer.
Syntax
tagged destination {single-interface | range interface-range}
Parameters
Defaults
Destination ports send untagged packets to an analyzer so that the reserved VLAN ID is removed and
the original monitored packet is mirrored.
Command Modes
MONITOR SESSION (conf-mon-sess-session-ID)
single-interface
Specifies one of the following interface types:
• 1-Gigabit Ethernet: Enter gigabitethernet slot/port.
• 10-Gigabit Ethernet: Enter tengigabitethernet slot/port.
range
interface-range
Specifies one of the following interface ranges:
• gigabitethernet slot/first_port - last_port
• tengigabitethernet slot/first_port - last_port
A space is required before and after the dash (-).
For example:
tagged destination range gigabitethernet 1/2 - 4