monitor session filter
To start a new flow-based SPAN (FSPAN) session or flow-based RSPAN (FRSPAN) source or destination
session, or to limit (filter) SPAN source traffic to specific VLANs, use the
monitor session filter
global
configuration command. To remove filters from the SPAN or RSPAN session, use the
no
form of this command.
monitor session session-number filter
{
vlan vlan-id
[
,
|
-
] }
no monitor session session-number filter
{
vlan vlan-id
[
,
|
-
] }
Syntax Description
session-number
Specifies a list of VLANs as filters on trunk source ports to limit
SPAN source traffic to specific VLANs. The
vlan-id
range is 1 to
4094.
vlan vlan-id
(Optional) Specifies a series of VLANs, or separates a range of
VLANs from a previous range. Enter a space before and after the
comma.
,
(Optional) Specifies a range of VLANs. Enter a space before and
after the hyphen.
-
Command Default
No monitor sessions are configured.
Command Modes
Global configuration
Command History
Modification
Release
This command was introduced.
Cisco IOS XE 3.3SECisco IOS XE 3.3SE
Usage Guidelines
You can monitor traffic on a single VLAN or on a series or range of ports or VLANs. You select a series or
range of VLANs by using the [
,
|
-
] options.
If you specify a series of VLANs, you must enter a space before and after the comma. If you specify a range
of VLANs, you must enter a space before and after the hyphen (
-
).
VLAN filtering refers to analyzing network traffic on a selected set of VLANs on trunk source ports. By
default, all VLANs are monitored on trunk source ports. You can use the
monitor session session_number
filter vlan vlan-id
command to limit SPAN traffic on trunk source ports to only the specified VLANs.
VLAN monitoring and VLAN filtering are mutually exclusive. If a VLAN is a source, VLAN filtering cannot
be enabled. If VLAN filtering is configured, a VLAN cannot become a source.
Command Reference, Cisco IOS XE Everest 16.5.1a (Catalyst 3650 Switches)
509
monitor session filter
Содержание Catalyst 3650 Series
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