Reference Guide

774 | Port Monitoring
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Configuration Procedure
To configure remote port mirroring, you must configure:
1. A reserved L2 VLAN used to transport (switched) mirrored packets on source, intermediate, and
destination switches
2. A source session that consists of multiple source ports and port channels, and (optionally) source
VLANs, which are on different source switches and associated with the dedicated VLAN
3. A destination session that consists of multiple destination ports associated with the dedicated VLAN
and located on different destination switches
To remove the remote-port mirroring assignment from a VLAN, enter the
no mode remote-port-mirroring
command.
Configure a dedicated L2 VLAN for Remote Port Mirroring
Step Command Syntax Command Mode Task
1 interface vlan vlan-id CONFIGURATION Create a VLAN to transport mirrored traffic in remote port
mirroring.
Valid vlan-id values are 1 to 4094. The default VLAN ID is
not supported.
2
mode
remote-port-mirroring
VLAN INTERFACE Configure the dedicated L2 VLAN to be used to transport
mirrored traffic in remote port mirroring.
3 tagged interface VLAN INTERFACE Configure a tagged port to carry mirrored traffic in the
reserved VLAN.
Repeat this command to configure additional tagged ports
for the VLAN.
Important: On a source switch on which you configure source ports for remote port mirroring, you can add only
one port to the dedicated RPM VLAN which is used to transport mirrored traffic. You can configure multiple ports
for the dedicated RPM VLAN on intermediate and destination switches.
4 Repeat Steps 1 to 3 on source, intermediate, and destination switches on which mirrored traffic in the reserved L2
VLAN is transmitted (refer to the second and thrid examples in Sample Configuration: Remote Port Mirroring).
Configure a Source Session on Multiple Switches
Ste
p Command Syntax Command Mode Task
1 monitor session
session-id
CONFIGURATION Configure a new remote-port mirroring session or add or delete
source ports from an existing session, and enter Monitor Session
configuration mode.
Up to 4 source sessions are supported on a switch. Refer to
Configuration Notes for information on datapath limitations.
session-id: Session number used to identify the mirroring session.
Range: 0 - 65535.