Port Mirroring Configuration Commands

I



Table of Contents

Table of Contents
Chapter 1 Port Mirroring Configuration Commands..........................................................................1

1.1 Port Mirroring Configuration Commands..............................................................................1
1.1.1 mirror.............................................................................................................................. 1
1.1.2 show mirror....................................................................................................................2

II



Port Mirroring Configuration Commands

Chapter 1 Port Mirroring Configuration Commands

1.1 Port Mirroring Configuration Commands
Port mirroring configuration commands include:

 mirror

 show mirror

1.1.1 mirror

Syntax

To set port mirror, run this command.

[no] mirror session session_number {destination {interface interface-id }
{ rspan vid tpid} | source {interface interface-id [, | -] [rx | tx | both ] }

Parameters

Parameters Description

session_number Number of port mirroring Value range: 1-4

destination Information about destination port mirroring

vid VID of the tag of remote mirroring

TPID TPID of the tag of remote mirroring

source Information about the mirrored port

rx | tx |both Data flow that will be mirrored Rx means that only the input data
is mirrored; tx means that only the output data is mirrored; both
means both the input data and the output data are mirrored.

Default Value

None

Usage Guidelines

This command is configured in global configuration mode.

Note:

The unknown unicast packets including the unknown unicast and the broadcast
take the source whose mirroring number is 1 as the source port in output mirroring.

1



Port Mirroring Configuration Commands

Example

Local mirroring: The following example shows how to set interface g0/2 as the
output mirroring of interface g0/1.
Switch_config# mirror session 1 destination interface g0/2
Switch_config# mirror session 1 source interface g0/1
Remote mirroring: The following example shows how to set interface g0/2 as the

local output mirroring of interface g0/1. The VLAN of remote mirroring is 100. TPID is
0x8100.

Switch_config# mirror session 1 destination interface g0/2 rspan 100 0x8100
Switch_config# mirror session 1 source interface g0/1

1.1.2 show mirror

Syntax

To display the configuration information about port mirroring, run the following
command.

show mirror [session session_number]

Parameters

Parameters Description

session_number Number of port mirroring Value range: 1-4

Default Value

None

Usage Guidelines

This command can be used to display the information about port mirroring.

Example

The following example shows how to display the information of port mirroring on
port 1.
Switch_config#show mirror session 1

Session 1
---------
Destination Ports: g0/3
Source Ports:

RX Only: None

2



Port Mirroring Configuration Commands

TX Only: None
Both: g0/2

3