Dell Networking PowerSwitch OS9: How To Configure Port Monitoring

Summary: This article explains how to set up and verify Port Monitoring (Mirroring) on Dell Networking OS9 Switches.

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Instructions

Important things to Know
 

  • ​Port Monitoring is supported on both physical and logical interfaces like virtual local area network (VLAN) and port-channel.
  • The monitored (the source) and monitoring ports (the destination) must be on the same switch.
  • In general, a monitoring port should have no IP address and no shutdown as the only configuration. A monitoring port may also not be a member of a VLAN.
  • There may only be one destination port in a monitoring session.
  • A Port monitoring session can have multiple source statements.
  • One Destination Port can be used in multiple sessions.

 

Configure Port Monitor Session

Command

Purpose

Force10# configure

Enter configuration mode.

Force10(conf)# interface te 0/2

Enter the destination port to be used for monitor session. Confirm that it has no configuration. 

Force10(conf-if-te-0/2)# no switchport
 		 Remove any Layer 2 that may be configured.

Force10(conf-if-te-0/2)# no ip address

Remove any IP address that may be configured.

Force10(conf-if-te-0/2)# no shutdown

Enable the port.

Force10(conf-if-te-0/2)# exit

Leave the destination port interface.

Force10(conf)# monitor session 0

Set up and identify the session number. Range 0 - 65535.

Force10(conf-mon-sess-0)#source te 0/1 destination te 0/2 direction both

Set the source (the port you want to monitor). Set the destination (the port where you send the monitored packets). Set the direction (Both/Rx/Tx).


 

Verify Port Monitor Session

Force10#show monitor session 0

  SessID         Source               Destination             Dir       Mode           Source IP          Best IP
  ------         ------               -----------             ---       ----           ---------          --------
     0           Te 0/1                Te 0/2                 both      Port             N/A                N/A

 

 

Affected Products

Force10 S60-44T
Article Properties
Article Number: 000118038
Article Type: How To
Last Modified: 21 Nov 2025
Version:  6
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