Command Line Reference Guide

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Port Monitoring
The port monitoring feature allows you to monitor network traffic by forwarding a copy of each incoming or outgoing
packet from one port to another port.
The commands in this chapter are supported on the S5000.
Important Points to Remember
Port monitoring is supported on physical ports only. Logical interfaces, such as Port Channels and virtual local
area networks (VLANs), are not supported.
The Dell Networking operating software (FTOS) supports as many monitor sessions on a system as the number
of port-pipes.
The monitoring (destination, “MG”) and monitored (source, “MD”) ports must be on the same switch.
In general, a monitoring port should have no ip address and no shutdown as the only configuration;
FTOS permits a limited set of commands for monitoring ports; display them using the
? command. A monitoring
port also may not be a member of a VLAN.
A monitoring port can monitor any physical port in the chassis.
Only one MG and one MD may be in a single port-pipe.
A monitoring port can monitor more than one port.
More than one monitored port can have the same destination monitoring port.
FTOS on the S5000 supports multiple source ports to be monitored by a single destination port in one monitor
session.
On the S5000, one monitor session can have only one MG port. There is no restriction on the number of source
ports, or destination ports on the chassis.
NOTE: The monitoring port should not be a part of any other configuration.
description
Enter a description of this monitoring session.
S5000
Syntax
description {description}
To remove the description, use the no description {description} command.
Parameters
description Enter a description regarding this session (80 characters maximum).
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