Configuration Example For A Unidirectional Span Session - Cisco Nexus 9000 Series Configuration Manual

Configuring SPAN
Procedure
Step 1 Configure destination ports in access mode and enable SPAN monitoring.
Example:
switch# configure terminal
switch(config)# interface ethernet 2/5
switch(config-if)# switchport
switch(config-if)# switchport monitor
switch(config-if)# no shut
switch(config-if)# exit
switch(config)#
Step 2
Configure a SPAN session.
Example:
switch(config)# no monitor session 3
switch(config)# monitor session 3
switch(config-monitor)# source interface ethernet 2/1-3, ethernet 3/1 rx
switch(config-monitor)# source interface port-channel 2
switch(config-monitor)# source interface sup-eth 0 both
switch(config-monitor)# source vlan 3, 6-8 rx
switch(config-monitor)# source interface ethernet 101/1/1-3
switch(config-monitor)# filter vlan 3-5, 7
switch(config-monitor)# destination interface ethernet 2/5
switch(config-monitor)# no shut
switch(config-monitor)# exit
switch(config)# show monitor session 3
switch(config)# copy running-config startup-config

Configuration Example for a Unidirectional SPAN Session

To configure a unidirectional SPAN session, follow these steps:
Procedure
Step 1 Configure destination ports in access mode and enable SPAN monitoring.
Example:
switch# configure terminal
switch(config)# interface ethernet 2/5
switch(config-if)# switchport
switch(config-if)# switchport monitor
switch(config-if)# no shut
switch(config-if)# exit
switch(config)#
Step 2
Configure a SPAN session.
Example:
switch(config)# no monitor session 3
switch(config)# monitor session 3 rx
Cisco Nexus 9000 Series NX-OS System Management Configuration Guide, Release 6.x
Configuration Example for a Unidirectional SPAN Session
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