Procedure
PurposeCommand or Action
Enters global configuration mode.switch# configure terminal
Step 1
Enters monitor configuration mode for the
specified SPAN session.
switch(config) # monitor session
session-number
Step 2
Creates a descriptive name for the SPAN
session.
switch(config-monitor) # description
description
Step 3
Example
The following example shows how to configure a SPAN session description:
switch# configure terminal
switch(config) # monitor session 2
switch(config-monitor) # description monitoring ports eth2/2-eth2/4
switch(config-monitor) #
Activating a SPAN Session
The default is to keep the session state shut. You can open a session that duplicates packets from sources to
destinations.
Procedure
PurposeCommand or Action
Enters global configuration mode.switch# configure terminal
Step 1
Opens the specified SPAN session or all
sessions.
switch(config) # no monitor session {all |
session-number} shut
Step 2
Example
The following example shows how to activate a SPAN session:
switch# configure terminal
switch(config) # no monitor session 3 shut
Suspending a SPAN Session
By default, the session state is shut.
Cisco Nexus 3548 Switch NX-OS System Management Configuration Guide, Release 7.x
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Configuring SPAN
Activating a SPAN Session