30-13
Cisco IE 3000 Switch Software Configuration Guide
OL-13018-03
Chapter 30 Configuring SPAN and RSPAN
Configuring SPAN and RSPAN
This example shows how to disable received traffic monitoring on port 1, which was configured for
bidirectional monitoring:
Switch(config)#
no monitor session 1 source interface gigabitethernet1/1 rx
The monitoring of traffic received on port 1 is disabled, but traffic sent from this port continues to be
monitored.
This example shows how to remove any existing configuration on SPAN session 2, configure SPAN
session 2 to monitor received traffic on all ports belonging to VLANs 1 through 3, and send it to
destination Gigabit Ethernet port 2. The configuration is then modified to also monitor all traffic on all
ports belonging to VLAN 10.
Switch(config)#
no monitor session 2
Switch(config)#
monitor session 2 source vlan 1 - 3 rx
Switch(config)#
monitor session 2 destination interface gigabitethernet1/2
Switch(config)#
monitor session 2 source vlan 10
Switch(config)#
end
Creating a Local SPAN Session and Configuring Incoming Traffic
Beginning in privileged EXEC mode, follow these steps to create a SPAN session, to specify the source
ports or VLANs and the destination ports, 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 a Local SPAN Session”
section on page 30-10
.
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.
Step 3
monitor session
session_number
source
{
interface
interface-id |
vlan
vlan-id
} [
,
|
-
]
[
both
|
rx
|
tx
]
Specify the SPAN session and the source port (monitored port).
