Configuring SPAN and RSPAN

Configuring an FRSPAN Session

DETAILED STEPS

 

Command or Action

Purpose

Step 1

configure terminal

Enters global configuration mode.

 

Example:

 

 

Switch# configure terminal

 

Step 2 no monitor session {session_number all local remote}

Example:

Switch(config)# no monitor session 2

Step 3 monitor session session_number source

{interface interface-id vlan vlan-id} [, -]

[both rx tx]

Example:

Switch(config)# monitor session 2 source interface gigabitethernet1/0/1

Removes any existing SPAN configuration for the session.

For session_number, the range is 1 to 66.

allRemoves all SPAN sessions.

localRemoves all local sessions.

remoteRemoves all remote SPAN sessions.

Specifies the SPAN session and the source port (monitored port).

For session_number, the range is 1 to 66.

For interface-id, specify the source port or the source VLAN to monitor.

For source interface-id, specify the source port to monitor. Only physical interfaces are valid.

For vlan-id, specify the source VLAN to monitor. The range is 1 to 4094 (excluding the RSPAN VLAN).

Note A single session can include multiple sources (ports or VLANs) defined in a series of commands, but you cannot combine source ports and source VLANs in one session.

(Optional) [, -]Specifies a series or range of interfaces. Enter a space before and after the comma; enter a space before and after the hyphen.

(Optional) [both rx tx]Specifies the direction of traffic to monitor. If you do not specify a traffic direction, the SPAN monitors both sent and received traffic.

bothMonitors both sent and received traffic. This is the default.

rxMonitors received traffic.

txMonitors sent traffic.

Note You can use the monitor session session_number source command multiple times to configure multiple source ports.

Step 4 monitor session session_number destination Specifies the RSPAN session and the destination RSPAN VLAN.

remote vlan vlan-id

For session_number, enter the number defined in Step 3.

 

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