User Guide

34-11
Catalyst 6500 Series Switch Cisco IOS Software Configuration Guide—Release 12.1 E
78-14099-04
Chapter 34 Configuring Local SPAN and RSPAN
Configuring Local SPAN and RSPAN
Configuring a Destination Port as an Unconditional Trunk
To tag the monitored traffic with Release 12.1(13)E and later releases, configure the destination port as
a trunk.
To configure the destination port as a trunk, perform this task:
This example shows how to configure a port as an unconditional IEEE 802.1q trunk:
Router(config)# interface fastethernet 5/12
Router(config-if)# switchport
Router(config-if)# switchport trunk encapsulation dot1q
Router(config-if)# switchport mode trunk
Router(config-if)# switchport nonegotiate
Configuring a Local or RSPAN Destination
Note To configure an RSPAN source session, configure a source with an RSPAN VLAN as the destination. To
configure an RSPAN destination session, configure an RSPAN VLAN as the source and a port as the
destination.
To configure a local or RSPAN destination, perform this task:
Note To tag the monitored traffic, you must configure the port to trunk unconditionally before you configure
it as a destination (see the “Configuring a Destination Port as an Unconditional Trunk” section on
page 34-11).
Command Purpose
Step 1
Router(config)# interface type
1
slot/port
1. type = ethernet, fastethernet, gigabitethernet, or tengigabitethernet
Selects the LAN port to configure.
Step 2
Router(config-if)# switchport
Configures the LAN port for Layer 2 switching (required
only if the LAN port is not already configured for Layer
2 switching).
Step 3
Router(config-if)# switchport trunk encapsulation
{isl | dot1q}
Configures the encapsulation, which configures the Layer
2 switching port as either an ISL or 802.1Q trunk.
Step 4
Router(config-if)# switchport mode trunk
Configures the port to trunk unconditionally.
Step 5
Router(config-if)# switchport nonegotiate
Configures the trunk not to use DTP.
Command Purpose
Router(config)# monitor session session_number
destination {single_interface | interface_list |
interface_range | mixed_interface_list} |
{remote vlan rspan_vlan_ID}}
Configures the session number and the destination ports or
RSPAN VLAN.
Router(config)# no monitor session {session_number |
all | local |
range session_range[[,session_range],...] | remote}
Clears the monitor configuration.