Reference Guide

Port Monitoring | 1141

Port Monitoring

Overview

The Port Monitoring feature enables you to monitor network traffic by forwarding a copy of each

incoming or outgoing packet from one port to another port.

The Remote Port Mirroring feature allows you to monitor traffic on multiple source ports on different

switches and transport mirrored packets on a dedicated L2 VLAN to multiple destination ports on

different switches.

The commands in this chapter are generally supported on the C-Series, E-Series, and S-Series, with

one exception, as noted in the Command History fields and by these symbols under the command

headings:

c e s

Commands

• description

• flow-based enable

• mode remote-port-mirroring

• monitor session

• show config

• show monitor session

• show running-config monitor session

• source (port monitoring)

• source (remote port mirroring)

• source remote vlan (remote port mirroring)

• tagged destination

• untagged destination