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Cisco Catalyst Blade Switch 3130 and 3032 for Dell Software Configuration Guide
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Chapter 30 Configuring SPAN and RSPAN
Configuring SPAN and RSPAN
To delete a SPAN session, use the
no
monitor session
session_number
global configuration command.
To remove a destination port from the SPAN session, use the
no monitor session
session_number
destination interface
interface-id
global configuration command. To remove the RSPAN VLAN from
the session, use the
no monitor session
session_number
source remote vlan
vlan-id.
This example shows how to configure VLAN 901 as the source remote VLAN and port 1 as the
destination interface:
Switch(config)#
monitor session 1 source remote vlan 901
Switch(config)#
monitor session 1 destination interface gigabitethernet2/0/1
Switch(config)#
end
Creating an RSPAN Destination Session and Configuring Incoming Traffic
Beginning in privileged EXEC mode, follow these steps to create an RSPAN destination session, to
specify the source RSPAN VLAN and the destination port, and to enable incoming traffic on the
destination port for a network security device (such as a Cisco IDS Sensor Appliance).
For details about the keywords not related to incoming traffic, see the
“Creating an RSPAN Destination
Session” section on page 30-21
. This procedure assumes that the RSPAN VLAN has already
been configured.
Step 6
monitor session
session_number
source
remote vlan
vlan-id
Specify the RSPAN session and the source RSPAN VLAN.
For
session_number
, the range is 1 to 66.
For
vlan-id
, specify the source RSPAN VLAN to monitor.
Step 7
monitor session
session_number
destination interface
interface-id
Specify the RSPAN session and the destination interface.
For
session_number
, enter the number defined in Step 6.
In an RSPAN destination session, you must use the same session
number for the source RSPAN VLAN and the destination port.
For
interface-id
, specify the destination interface. The destination
interface must be a physical interface.
Though visible in the command-line help string,
encapsulation
replicate
is not supported for RSPAN. The original VLAN ID is
overwritten by the RSPAN VLAN ID, and all packets appear on the
destination port as untagged.
Step 8
end
Return to privileged EXEC mode.
Step 9
show monitor
[
session
session_number
]
show running-config
Verify the configuration.
Step 10
copy running-config startup-config
(Optional) Save the configuration in the configuration file.
Command
Purpose
Command
Purpose
Step 1
configure terminal
Enter global configuration mode.
Step 2
no monitor session
{
session_number
|
all
|
local
|
remote
}
Remove any existing SPAN configuration for the session.
