show monitor session
CF-768
Cisco IOS Configuration Fundamentals Command Reference
July 2008
Usage Guidelines The erspan-destination and erspan-source keywords are not supported on Catalyst 6500 series
switches that are configured with a Supervisor Engine 2.
In releases prior to Release 12.2(18)SXF, ERSPAN is supported on Catalyst 6500 series switches that
are operating in compact switch fabric module functionality switching mode only.
Release 12.2(18)SXF and later releases support ERSPAN in any switch fabric module functionality
switching mode.
If the switch fabric module functionality switching mode is set to compact, the output of the show
commands display “dcef mode” for fabric-enabled modules with DFC3 installed and display “fabric
mode” for other fabric-enabled modules.
If the switch fabric module functionality switching mode is set to truncated, the output of the show
commands display “fabric mode” for all fabric-enabled modules.
When entering a range of sessions, use a dash (-) to specify a range and separate multiple entries with a
comma (,). Do not enter spaces before or after the comma or the dash.
You can enter multiple ranges by separating the ranges with a comma.
If you enter the show monitor session command without specifying a session, the information for all
sessions is displayed.
Examples This example shows how to display the saved version of the monitor configuration for a specific session:
Router# show monitor session 2
Session 2
------------
Type : Remote Source Session
Source Ports:
RX Only: Fa1/1-3
Dest RSPAN VLAN: 901
Router#
This example shows how to display the detailed information from a saved version of the monitor
configuration for a specific session:
Router# show monitor session 2 detail
Session 2
------------
Type : Remote Source Session
Source Ports:
RX Only: Fa1/1-3
TX Only: None
Both: None
Source VLANs:
RX Only: None
TX Only: None
Both: None
Source RSPAN VLAN: None
Destination Ports: None
Filter VLANs: None
Dest RSPAN VLAN: 901
Router#
This example shows how to display information about the egress replication mode only:
Router# show monitor session egress replication-mode capability
No SPAN configuration is present in the system.
