Show monitor command

From NetworkCommands

A command available on most Cisco switch platforms; used to display interface mirroring configuration and status information.

Cisco refer to mirroring as monitoring or spanning. The actual IOS software feature is called Switched Port Analyzer (SPAN)

As multiple, separate monitor source and destination combinations can be configured (the number differs by platform) session numbers are used to differentiate each monitor instance

Usage Syntax

show monitor [session number] [detail]

• detail - display detailed monitor session information for the specified session or all sessions
• session number - display information on the specified session only

Usage Examples

show monitor - display basic monitor information for all configured sessions

show monitor session 1 - display basic monitor information for the specified session

show monitor detail - display detailed monitor information for the all sessions

Typical Output

switch-one#show monitor
Session 1
---------
Type              : Local Session
Source Ports      :
    Both          : Gi1/1
Destination Ports : Gi2/2
    Encapsulation : Native
          Ingress : Disabled
         Learning : Disabled

switch-one#show monitor detail
Session 1
---------
Type              : Local Session
Source Ports      :
    RX Only       : None
    TX Only       : None
    Both          : Gi3/3
Source VLANs      :
    RX Only       : None
    TX Only       : None
    Both          : None
Source RSPAN VLAN : None
Destination Ports : Gi5/48
    Encapsulation : Native
          Ingress : Disabled
         Learning : Disabled
Filter VLANs      : None
Filter Addr Type  :
    RX Only       : None
    TX Only       : None
    Both          : None
Filter Pkt Type   :
    RX Only       : None
Dest RSPAN VLAN   : None

Related Commands

Use the monitor command to configure monitoring

Command Equivalents

The Extreme command equivalent is the show mirroring command

The F5 BigIP command equivalent is the bigpipe mirror show command

Related Articles

Information on other Cisco commands

Information on Linux commands

Information on F5 BigIP commands

Information on Vyatta commands

Information on Extreme commands

Information on Zebra commands

Information on Secure Platform commands

Information on Blue Coat SGOS commands

Information on Nokia IPSO commands

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