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Cisco Catalyst Blade Switch 3130 and 3032 for Dell Software Configuration Guide
OL-12247-04
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 source or destination port or VLAN from the SPAN session, use the
no monitor session
session_number
source
{
interface
interface-id |
vlan
vlan-id
}
global configuration command or the
no
monitor session
session_number
destination interface
interface-id
global configuration command. For
destination interfaces, the encapsulation and ingress options are ignored with the
no
form of the
command.
This example shows how to remove any existing configuration on SPAN session 2, configure SPAN
session 2 to monitor received traffic on Gigabit Ethernet source port 1, and send it to destination Gigabit
Ethernet port 2 with the same egress encapsulation type as the source port, and to enable ingress
forwarding with IEEE 802.1Q encapsulation and VLAN 6 as the default ingress VLAN.
Switch(config)#
no monitor session 2
Switch(config)#
monitor session 2 source gigabitethernet1/0/1 rx
Switch(config)#
monitor session 2 destination interface gigabitethernet1/0/2 encapsulation
replicate ingress dot1q vlan 6
Switch(config)#
end
Specifying VLANs to Filter
Beginning in privileged EXEC mode, follow these steps to limit SPAN source traffic to specific VLANs:
Step 5
end
Return to privileged EXEC mode.
Step 6
show monitor
[
session
session_number
]
show running-config
Verify the configuration.
Step 7
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.
For
session_number
, the range is 1 to 66.
Specify
all
to remove all SPAN sessions,
local
to remove all local
sessions, or
remote
to remove all remote SPAN sessions.
Step 3
monitor session
session_number
source
interface
interface-id
Specify the characteristics of the source port (monitored port) and
SPAN session.
For
session_number
, the range is 1 to 66.
For
interface-id
, specify the source port to monitor. The interface
specified must already be configured as a trunk port.
Step 4
monitor session
session_number
filter vlan
vlan-id
[
,
|
-
]
Limit the SPAN source traffic to specific VLANs.
For
session_number
, enter the session number specified in Step 3.
For
vlan-id
, the range is 1 to 4094.
(Optional) Use a comma (
,
) to specify a series of VLANs, or use a
hyphen (
-
) to specify a range of VLANs. Enter a space before and after
the comma; enter a space before and after the hyphen.