user manual

DETAILED STEPS
PurposeCommand or Action
Enters the global configuration mode.configure terminal
Example:
Switch# configure terminal
Step 1
Removes any existing SPAN configuration for the session.
no monitor session {session_number |
all | local | remote}
Step 2
For session_number, the range is 1 to 66.
Example:
Switch(config)# no monitor session
all
allRemoves all SPAN sessions.
localRemoves all local sessions.
remoteRemoves all remote SPAN sessions.
Specifies the SPAN session and the source port (monitored port).
monitor session session_number source
{interface interface-id | vlan vlan-id}
[, | -] [both | rx | tx]
Step 3
For session_number, the range is 1 to 66.
Example:
Switch(config)# monitor session 1
For interface-id, specify the source port or the source VLAN to monitor.
For source interface-id, specify the source port to monitor. Only physical
interfaces are valid.
source interface
gigabitethernet1/0/1
For vlan-id, specify the source VLAN to monitor. The range is 1 to 4094
(excluding the RSPAN VLAN).
A single session can include multiple sources (ports or VLANs)
defined in a series of commands, but you cannot combine source
ports and source VLANs in one session.
Note
(Optional) [, | -] Specifies a series or range of interfaces. Enter a space before
and after the comma; enter a space before and after the hyphen.
(Optional) Specifies the direction of traffic to monitor. If you do not specify
a traffic direction, the SPAN monitors both sent and received traffic.
bothMonitors both sent and received traffic. This is the default.
rxMonitors received traffic.
txMonitors sent traffic.
You can use the monitor session session_number source command
multiple times to configure multiple source ports.
Note
Specifies the SPAN session and the destination port (monitoring port).
monitor session session_number
destination {interface interface-id [, |
-] [encapsulation replicate]}
Step 4
For local SPAN, you must use the same session number for the source
and destination interfaces.
Note
Catalyst 2960-X Switch Network Management Configuration Guide, Cisco IOS Release 15.0(2)EX
OL-29044-01 79
Configuring SPAN and RSPAN
Creating a Local SPAN Session